Water resistance structure and test method for ship load test

Abstract

The present invention provides a water resistance structure and test method for a ship load test. The bottom of the lower frame is provided with a bottom plate; the top support of the bottom plate is fixed with a salt water tank for holding test salt water, and the top of the lower frame is provided with a gantry; the top of the gantry is fixed with a top plate, and the top middle part of the top plate is fixed with a lifting and reducing motor, the output shaft of the lifting and reducing motor is fixedly connected to a screw, and the screw is threadedly coupled with a transmission nut assembly through a threaded transmission structure; the transmission nut assembly is fixedly mounted on a plate hanging arm, and a plate is fixedly mounted on the plate hanging arm. This water resistance structure adopts an automatic lifting device to achieve the lifting and lowering of the plate, thereby conveniently sinking the plate into the water tank and conveniently controlling its immersion depth to meet the test requirements under different load conditions; in addition, it adopts an automatic lifting device to replace the traditional manual operation method, greatly enhancing the safety of its test.

Description

Technical Field

[0001] The present invention relates to the field of shipbuilding equipment, in particular to a water resistance structure and a test method for a ship load test. Background Art

[0002] During the production and manufacturing process of ships, prior to launching and delivery, the ship's electrical equipment needs to be load tested to verify whether it meets the load requirements. This is when a water resistor is needed for load testing. Water resistors conduct electricity through electrolyte ions dissolved in water. The electrolyte fills the space between two planar plates, forming a capacitor-like conductor. They have no inductive components themselves, so compared to starting devices such as frequency-sensitive devices and reactors, they can improve the power factor of the motor and reduce energy consumption. Currently, the water resistor test equipment used is relatively simple in structure. During the test, the plate assembly must be manually immersed or raised to the surface of the water. Due to the heavy weight of the plates themselves, manually lowering the plates requires high labor intensity. Furthermore, the load is large after power is applied, posing certain safety risks when manually operated at close range. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a water resistance structure and test method for ship load testing. This water resistance structure adopts an automatic lifting device to realize the lifting and lowering of the electrode plate, thereby conveniently sinking the electrode plate into the water tank and conveniently controlling its immersion depth to meet the test requirements under different load conditions; in addition, it adopts an automatic lifting device to replace the traditional manual operation method, which greatly enhances the safety of its test.

[0004] In order to achieve the above-mentioned technical features, the purpose of the present invention is achieved as follows: a water resistance structure for ship load testing, which includes a lower frame, a bottom plate is arranged at the bottom of the lower frame; a brine tank for holding test brine is fixed on the top support of the bottom plate, and a portal frame is arranged on the top of the lower frame; a top plate is fixed on the top of the portal frame, and a lifting and reducing motor is fixed on the middle part of the top of the top plate, the output shaft of the lifting and reducing motor is fixedly connected to the screw, and the screw is threadedly matched with the transmission nut assembly through a threaded transmission structure; the transmission nut assembly is fixedly mounted on the plate hanging arm, and the plate is fixedly mounted on the plate hanging arm.

[0005] The four corners of the bottom of the base plate are fixed with support foot plates for supporting the entire lower frame, and ribs are arranged between the support foot plates and the base plate.

[0006] An upper outer side wall of the salt water tank is connected with a water inlet valve and an overflow pipe, and a sewage valve is installed at the bottom of the salt water tank.

[0007] An electric control box is fixedly mounted on the middle portion of the front side of the lower frame via an electric control box bracket, and a ladder is fixed on the side of the electric control box.

[0008] A grounding column is fixedly installed on the bottom end of the lower frame.

[0009] An oblique stiffening plate is fixed between the portal frame and the top plate.

[0010] The pole plate hanging arm forms a sliding fit with a deflection-preventing guide rail arranged between the top plate and the lower frame.

[0011] The transmission nut assembly includes a screw support rod fixed in the center of the brine tank, and the bottom end of the screw is rotatably mounted on the screw support rod through a bearing seat; a nut seat is fixedly mounted on the plate hanging arm through a long bolt, and a nut sleeve is fixedly mounted inside the nut seat, and the nut sleeve and the screw form a threaded transmission fit.

[0012] The pole plates are fixedly installed on both sides of the pole plate hanging arm through the pole plate hanging arm insulating bakelite partition and the pole plate hanging arm insulating bakelite stud bolts respectively. Each pole plate is fixedly installed with a pole plate terminal. The lower parts of adjacent pole plates are fixedly connected by a pole plate connecting circular plate; the lower part of the pole plate is fixedly installed with an inter-plate insulating fixed isolation piece.

[0013] The method for conducting a ship load test on a water resistance structure comprises the following steps:

[0014] Step 1: During the ship load test, add test salt water to the salt water tank through the water inlet valve;

[0015] Step 2: Connect the wires on the plate, start the lifting and reducing motor, drive the screw through the lifting and reducing motor, and then drive the entire plate hanging arm and the plate to move up and down inside the salt water tank through the cooperation between the screw and the transmission nut assembly;

[0016] Step 3: After the plates are immersed in the salt water tank, power on the plates through the electrical control box and perform the corresponding load test.

[0017] The present invention has the following beneficial effects:

[0018] 1. This water resistance structure adopts an automatic lifting device to realize the lifting and lowering of the plate, which makes it convenient to sink the plate into the water tank and conveniently control its immersion depth to meet the test requirements under different load conditions; in addition, it adopts an automatic lifting device to replace the traditional manual operation method, which greatly enhances the safety of its test.

[0019] 2. The above-mentioned support leg plate can be used to support the entire lower frame, ensuring its support stability.

[0020] 3. The water inlet valve can be used to control the addition of water into the salt water tank.

[0021] 4. The entire test process can be controlled through the electric control box.

[0022] 5. The above-mentioned anti-deflection guide rail can play a good guiding role on the plate hanging arm, thereby ensuring that it can be lifted and lowered stably.

[0023] 6. The above-mentioned transmission nut assembly can be used to cooperate with the screw to realize the thread lifting transmission.

[0024] 7. The plate hanging arm can be used to fix and install the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] Figure 1 It is the front view of the present invention.

[0027] Figure 2 It is a side view of the present invention.

[0028] Figure 3 It is a top view of the present invention.

[0029] Figure 4 This is a specific installation structure diagram of the overflow pipe of the present invention.

[0030] Figure 5 This is a front view of the specific installation structure of the electrode plate of the present invention.

[0031] Figure 6 This is a top view of the specific installation structure of the electrode plate of the present invention.

[0032] Figure 7 For the present invention Figure 6 Medium DD view.

[0033] Figure 8 For the present invention Figure 6 Partial detail of section B.

[0034] Figure 9 For the present invention Figure 7 Partial detail of section A.

[0035] Figure 10 For the present invention Figure 7 Diagram of the structure of the middle plate terminal.

[0036] Figure 11 For the present invention Figure 7 Middle EE view.

[0037] In the figure: salt water tank 1, ribs 2, lower frame 3, electric control box 4, electric control box bracket 5, ladder 6, anti-deflection guide rail 7, top plate 8, oblique stiffener 9, support leg plate 10, bottom plate 11, door frame 12, lifting and reducing motor 13, screw 14, transmission nut assembly 15, plate hanging arm 16, plate 17, water inlet valve 18, overflow pipe 19, sewage valve 20, grounding column 21, plate terminal 22, plate hanging arm insulating fixing 23, plate connecting circular plate 24, inter-plate insulating fixing spacer 25, plate hanging arm insulating bakelite stud 26, plate hanging arm insulating bakelite partition 27, bearing seat 28, screw support rod 29, nut seat 30, long bolt 31, nut sleeve 32. DETAILED DESCRIPTION

[0038] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0039] Example 1:

[0040] See also Figure 1-11 The water resistance structure for ship load testing includes a lower frame 3, with a bottom plate 11 provided at the bottom of the lower frame 3; a salt water tank 1 for holding test salt water is fixed to the top support of the bottom plate 11, and a portal frame 12 is provided on the top of the lower frame 3; a top plate 8 is fixed to the top of the portal frame 12, and a lifting and reducing motor 13 is fixed to the top middle part of the top plate 8. The output shaft of the lifting and reducing motor 13 is fixedly connected to a screw 14, and the screw 14 forms a threaded transmission with a transmission nut assembly 15 through a threaded transmission structure; the transmission nut assembly 15 is fixedly mounted on a plate hanging arm 16, and a plate 17 is fixedly mounted on the plate hanging arm 16. This water resistance structure uses an automatic lifting device to achieve the lifting and lowering of the plate, thereby conveniently sinking the plate into the water tank and conveniently controlling its immersion depth to meet the test requirements under different load conditions; in addition, the use of an automatic lifting device replaces the traditional manual operation method, greatly enhancing the safety of its test. During the specific test, the screw 14 can be driven by the lifting reduction motor 13, and the entire electrode plate arm 16 and the electrode plate 17 can be driven to rise and fall inside the salt water tank 1 through the cooperation between the screw 14 and the transmission nut assembly 15.

[0041] Furthermore, support legs 10 are fixed to the four corners of the bottom plate 2 to support the entire lower frame 3. Ribs 2 are provided between the support legs 10 and the bottom plate 11. These support legs 10 support the entire lower frame 3, ensuring its stability. The ribs 2 enhance its support strength and stability.

[0042] Furthermore, the upper outer wall of the salt water tank 1 is connected to an inlet valve 18 and an overflow pipe 19, and a drain valve 20 is installed at the bottom of the salt water tank 1. The inlet valve 18 can be used to control the addition of water into the salt water tank 1. The overflow pipe 19 can be used to control the water level. The drain valve 20 can be used to drain wastewater.

[0043] Furthermore, an electric control box 4 is fixedly mounted on the front middle portion of the lower frame 3 via an electric control box bracket 5, and a ladder 6 is fixed to the side of the electric control box 4. The electric control box 4 can be used to control the entire test process.

[0044] Furthermore, a grounding post 21 is fixedly mounted on the bottom end of the lower frame 3. Grounding can be conveniently achieved through the grounding post 21, thereby ensuring the safety of the test.

[0045] Furthermore, an oblique stiffening plate 9 is fixed between the portal frame 12 and the top plate 8. The oblique stiffening plate 9 ensures the stability and safety of the top plate 8.

[0046] Furthermore, the plate hanging arm 16 is in sliding cooperation with the anti-deflection guide rail 7 provided between the top plate 8 and the lower frame 3. The anti-deflection guide rail 7 can play a good guiding role on the plate hanging arm 16, thereby ensuring that it can be stably lifted and lowered.

[0047] Furthermore, the transmission nut assembly 15 includes a screw support rod 29 fixed to the center of the salt water tank 1, and the bottom end of the screw 14 is rotatably mounted on the screw support rod 29 through a bearing seat 28; a nut seat 30 is fixedly mounted on the pole plate hanging arm 16 through a long bolt 31, and a nut sleeve 32 is fixedly mounted inside the nut seat 30, and the nut sleeve 32 and the screw 14 form a threaded transmission fit. The above-mentioned transmission nut assembly 15 can be used to cooperate with the screw 14, thereby realizing threaded lifting transmission. During operation, the nut sleeve 32 is driven by the rotation of the screw 14, thereby realizing the rise of the nut sleeve 32, and then driving the pole plate hanging arm 16 and the pole plate 17 to achieve lifting.

[0048] Furthermore, the plates 17 are fixedly mounted on both sides of the plate hanging arm 16 via plate hanging arm insulating bakelite separators 27 and plate hanging arm insulating bakelite studs 26, respectively. Each plate 17 is fixedly mounted with a plate terminal 22, and the lower portions of adjacent plates 17 are fixedly connected via plate connecting circular plates 24. Inter-plate insulating spacers 25 are fixedly mounted on the lower portions of the plates 17. The plate hanging arm 16 can be used to secure and mount the plates 17.

[0049] Example 2: A method for performing a ship load test on a water resistance structure, comprising the following steps:

[0050] Step 1: During the ship load test, the salt water for the test is added to the salt water tank 1 through the water inlet valve 18;

[0051] Step 2: Connect the wires on the electrode plate 17, start the lifting and reducing motor 13, drive the screw 14 through the lifting and reducing motor 13, and then drive the entire electrode plate hanging arm 16 and the electrode plate 17 to move up and down inside the salt water tank 1 through the cooperation between the screw 14 and the transmission nut assembly 15;

[0052] Step 3: After the electrode plate 17 is immersed in the salt water tank 1, power is supplied to the electrode plate 17 through the electric control box to perform a corresponding load test.

Claims

1. A method for conducting a ship load test using a water resistance structure, wherein the water resistance structure for the ship load test comprises a lower frame (3), wherein a bottom plate (11) is provided at the bottom of the lower frame (3); a salt water tank (1) for containing test salt water is fixed on the top support of the bottom plate (11), and a portal frame (12) is provided on the top of the lower frame (3); a top plate (8) is fixed on the top of the portal frame (12), and a lifting and reducing motor (13) is fixed on the middle part of the top of the top plate (8); an output shaft of the lifting and reducing motor (13) is fixedly connected to a screw rod (14), and a screw rod (14) is connected to a driving nut assembly (15) through a threaded transmission structure to form a threaded transmission match; the driving nut assembly (15) is fixedly mounted on a plate hanging arm (16), and a plate (17) is fixedly mounted on the plate hanging arm (16); The transmission nut assembly (15) includes a screw support rod (29) fixed to the center of the salt water tank (1), and the bottom end of the screw rod (14) is rotatably mounted on the screw support rod (29) via a bearing seat (28); a nut seat (30) is fixedly mounted on the plate hanging arm (16) via a long bolt (31), and a nut sleeve (32) is fixedly mounted inside the nut seat (30), and the nut sleeve (32) and the screw rod (14) form a threaded transmission fit; The pole plates (17) are fixedly mounted on both sides of the pole plate hanging arm (16) through pole plate hanging arm insulating bakelite partitions (27) and pole plate hanging arm insulating bakelite stud bolts (26), each pole plate (17) is fixedly mounted with a pole plate terminal (22), and the lower parts of adjacent pole plates (17) are fixedly connected through a pole plate connecting circular plate (24); the lower parts of the pole plates (17) are fixedly mounted with an inter-plate insulating fixed spacer (25); The upper outer wall of the salt water tank (1) is connected to a water inlet valve (18) and an overflow pipe (19), and a sewage valve (20) is installed at the bottom of the salt water tank (1); It is characterized by: The method comprises the following steps: Step 1: During the ship load test, the salt water for the test is added to the salt water tank (1) through the water inlet valve (18); Step 2: Connect the wires on the electrode plate (17), start the lifting and reducing motor (13), drive the screw (14) through the lifting and reducing motor (13), and then drive the entire electrode plate hanging arm (16) and the electrode plate (17) to be lifted and lowered inside the salt water tank (1) through the cooperation between the screw (14) and the driving nut assembly (15); Step 3: After the electrode plate (17) is immersed in the salt water tank (1), the electrode plate (17) is energized through the electric control box to perform a corresponding load test.

2. The method for conducting a ship load test using a water resistance structure according to claim 1, characterized in that: The bottom four corners of the bottom plate (11) are fixed with support foot plates (10) for supporting the entire lower frame (3), and ribs (2) are provided between the support foot plates (10) and the bottom plate (11).

3. The method for conducting a ship load test using a water resistance structure according to claim 1, characterized in that: An electric control box (4) is fixedly mounted on the middle portion of the front face of the lower frame (3) via an electric control box bracket (5), and a ladder (6) is fixed on the side of the electric control box (4).

4. The method for conducting a ship load test using a water resistance structure according to claim 1, characterized in that: A grounding column (21) is fixedly mounted on the bottom end of the lower frame (3).

5. The method for conducting a ship load test using a water resistance structure according to claim 1, characterized in that: An oblique stiffening plate (9) is fixed between the portal frame (12) and the top plate (8).

6. The method for conducting a ship load test using a water resistance structure according to claim 1, characterized in that: The pole plate hanging arm (16) forms a sliding fit with a deflection prevention guide rail (7) provided between the top plate (8) and the lower frame (3).

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