Transformer marine transportation environment simulation device and control method thereof

Abstract

The invention discloses a transformer marine transportation environment simulation device and a control method thereof, the transformer marine transportation environment simulation device comprises a fixed base, a mounting platform for placing a transformer is hinged to the fixed base, and the mounting platform is connected with a rotation driving device; the bottom of the mounting platform is hollow; a rotating shaft of the mounting platform is provided with an angular velocity sensor, the top of the mounting platform is provided with a plurality of vertically downward first displacement sensors, and the side surface of the mounting platform is provided with a plurality of horizontally oriented second displacement sensors. According to the invention, the test comprehensiveness is improved, and the reliability of transformer packaging and the safety of products can be comprehensively evaluated; the test precision is enhanced, and the performance of the transformer package can be evaluated more accurately by accurately controlling the swing amplitude and frequency and collecting data in real time; and the test safety is improved.

Description

Technical Field

[0001] The present invention relates to the field of machinery, and particularly to a transformer sea transportation environment simulation device for a mobile shelter and a control method thereof. Background Art

[0002] Before transportation, transformers are usually packed in wooden boxes. During production and transportation, the quality of the packaging is crucial for the safety and reliability of the product. Existing packaging test methods usually only perform simple vibration or shock tests, such as a vibration abnormal sound test device and its detection method disclosed in the invention patent 2021106852147. However, this method can only simulate the vibration of the vehicle on the road and cannot simulate the swinging situation under the influence of wind and waves during sea transportation. Therefore, improvement is needed. Summary of the Invention

[0003] To solve the above technical problems, the present invention proposes a transformer sea transportation environment simulation device.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] A transformer sea transportation environment simulation device includes a fixed base 1, on which an installation platform 2 for placing a transformer is hingedly connected. The installation platform 2 is connected with a rotation driving device 3; the bottom of the installation platform 2 is hollowed out; an angular velocity sensor 4 is installed at the rotation axis of the installation platform 2, and a plurality of first displacement sensors 5 facing vertically downward are installed on the top of the installation platform 2, and a plurality of second displacement sensors 6 facing horizontally are installed on the side.

[0006] Further improvement, the installation platform 2 is a rectangular steel reinforcement cage and is provided with openings on both sides in the swinging plane.

[0007] Further improvement, a rotating shaft 11 is rotatably connected to the fixed base 1, and the rotating shaft 11 is fixedly connected to the installation platform 2; the rotation driving device 3 is in transmission connection with the rotating shaft 11.

[0008] Further improvement, the rotation driving device 3 includes a motor 31, the motor 31 is connected with a speed reducer 32, the speed reducer 32 is connected with a pulley structure 33, and the pulley structure 33 is in transmission connection with the rotating shaft 11.

[0009] Further improvement, the fixed base 1 is U-shaped.

[0010] Further improvement, both the first displacement sensors 5 and the second displacement sensors 6 are four.

[0011] Further improvement, the first displacement sensors 5 and the second displacement sensors 6 are communicatively connected to an alarm.

[0012] A control method for a transformer sea transportation environment simulation device, the transformer sea transportation environment simulation device being as described above; specifically including the following steps:

[0013] Step 1: Obtain the relationship between the swing amplitude and wind force level of cargo ships of different tonnages based on measured data:

[0014] θ = k 1 ×G

[0015] where G is the wind force level, θ is the swing amplitude, and k 1 is the swing amplitude coefficient;

[0016] Step 2: Obtain the relationship between the swing frequency and wind force level of cargo ships of different tonnages based on measured data:

[0017]

[0018] where f is the swing frequency and k 2 is the swing frequency coefficient;

[0019] Step 3: Perform data fitting to obtain the first fitting curve of the tonnage of cargo ships of different tonnages and the swing amplitude coefficient k 1 and the second fitting curve of the tonnage of cargo ships of different tonnages and the swing frequency coefficient k 2 ;

[0020] Step 4: Obtain the total mass m of the packaged transformer and the tonnage of the cargo ship to be transported, and obtain the maximum wind force on the route of the cargo ship to be transported according to the weather forecast. Obtain the swing amplitude coefficient k 1 and the swing frequency coefficient k 2 corresponding to the cargo ship to be transported under the maximum wind force according to the first fitting curve and the second fitting curve, and then obtain the maximum swing amplitude θ and swing frequency f that the cargo ship to be transported may encounter during transportation;

[0021] Step 5: Tie and fix the packaged transformer tightly on the installation platform 2, and then swing the installation platform 2 according to the maximum swing amplitude θ and swing frequency f that the cargo ship to be transported may encounter during transportation. The first displacement sensor 5 and the second displacement sensor 6 detect whether there is displacement on the surface of the packaging box. When displacement on the surface of the packaging box is detected, it indicates that the packaging box has cracked.

[0022] Further improvement: Before step 5, obtain the maximum destructive force that the packaging box withstands under the automatic swing with the swing amplitude of θ according to the maximum swing amplitude θ, and ensure that the bearing capacity of the packaging box is greater than the maximum destructive force;

[0023]

[0024] where g is the acceleration due to gravity and F cis the centrifugal force;

[0025] F c = m * a, where a is the acceleration and a = w 2 × r, then we have:

[0026] F c = m × w 2 × r

[0027] w is the angular velocity and r is the swing radius.

[0028] The beneficial effects of the present invention are as follows:

[0029] 1) It improves the comprehensiveness of the test and can comprehensively evaluate the reliability of the transformer packaging and the safety of the product.

[0030] 2) It enhances the test accuracy. By precisely controlling the swing amplitude and frequency, and real-time data acquisition, it can more accurately evaluate the performance of the transformer packaging.

[0031] 3) It improves the test safety. By the alarm module, abnormal situations can be detected in time to avoid potential safety hazards.

[0032] 4) The installation platform is a hollow structure, which can meet multiple capacities and sizes of single-phase transformers and amorphous three-phase transformers, improving the versatility of the test device. Description of the Drawings

[0033] The present invention is further described with reference to the drawings, but the content in the drawings does not constitute any limitation to the present invention.

[0034] Figure 1 is the three-dimensional structure schematic diagram of the present invention;

[0035] Figure 2 is the side structure schematic diagram of the present invention;

[0036] Figure 3 is the front structure schematic diagram of the present invention. Detailed Embodiments

[0037] In order to make the purpose, technical solutions and advantages of the invention more clear, the present invention is further described in detail below with reference to the drawings and examples.

[0038] As Figure 1 shown, a transformer sea transportation environment simulation device includes:

[0039] Fixed base 1: As the main structure of the entire test device, it is used to support other components.

[0040] Swingable installation platform 2: Installed on the fixed base through a hinge, it is used to fix the packaged transformer.

[0041] Rotary drive device 3: It includes a servo motor and a speed reducer, and is used to drive the mounting platform to swing.

[0042] Control unit: It includes a programmable logic controller (PLC) and a user interface, and is used to control the motion parameters of the drive device.

[0043] Data acquisition unit: It includes multiple displacement sensors, and is used to collect relevant data of the transformer in real time during the test.

[0044] Its usage method is as follows:

[0045] Step 1: Obtain the relationship between the swing amplitude and the wind force level of cargo ships of different tonnages according to the measured data:

[0046] 0 = k 1 ×G

[0047] G is the wind force level, θ is the swing amplitude, and k 1 is the swing amplitude coefficient;

[0048] Step 2: Obtain the relationship between the swing frequency and the wind force level of cargo ships of different tonnages according to the measured data:

[0049]

[0050] Among them, f is the swing frequency, and k 2 is the swing frequency coefficient;

[0051] Step 3: Perform data fitting to obtain the first fitting curve of the tonnage of cargo ships of different tonnages and the swing amplitude coefficient k 1 and the second fitting curve of the tonnage of cargo ships of different tonnages and the swing frequency coefficient k 2 ;

[0052] Step 4: Obtain the total mass m of the packaged transformer and the tonnage of the cargo ship to be transported, and obtain the maximum wind force on the route passed by the cargo ship to be transported according to the weather forecast. Obtain the swing amplitude coefficient k 1 and the swing frequency coefficient k 2 corresponding to the cargo ship to be transported under the maximum wind force according to the first fitting curve and the second fitting curve, and then obtain the maximum swing amplitude θ and swing frequency f that the cargo ship to be transported may encounter during transportation;

[0053] Obtain the maximum destructive force borne by the packaging box during automatic swing at the maximum swing amplitude θ that may be encountered, and ensure that the bearing capacity of the packaging box is greater than the maximum destructive force;

[0054]

[0055] Among them, g is the acceleration due to gravity, and Fc is the centrifugal force;

[0056] F c = m * a, where a is the acceleration and a = ω 2 × r, then we have:

[0057] F c = m × ω 2 × r

[0058] ω is the angular velocity and r is the swing radius.

[0059] Step Five: Tie and fix the packaged transformer tightly on the installation platform 2, and then swing the installation platform 2 according to the maximum swing amplitude θ and swing frequency f that the cargo ship to be transported may encounter during transportation. The first displacement sensor 5 and the second displacement sensor 6 detect whether there is displacement on the surface of the packaging box. When displacement on the surface of the packaging box is detected, it indicates that the packaging box has cracked.

[0060] Corresponding relationship between device gears and wind force levels:

[0061] Multiple gears can be set, and each gear corresponds to one or more wind force levels. By adjusting the swing amplitude and frequency of the device, sea conditions under different wind force levels are simulated. The following is the corresponding relationship between the gears of a 40,000-ton cargo ship and wind force levels during free swing:

[0062]

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A transformer marine environment simulation device, characterized in that: The invention comprises a fixed base (1), a mounting platform (2) for placing a transformer being hingedly connected to the fixed base (1), the mounting platform (2) being connected to a rotation drive device (3); the bottom of the mounting platform (2) is hollowed out; an angular velocity sensor (4) is mounted on the rotating shaft of the mounting platform (2), a plurality of first displacement sensors (5) facing vertically downward are mounted on the top of the mounting platform (2), and a plurality of second displacement sensors (6) facing horizontally are mounted on the side.

2. The transformer marine environment simulation device according to claim 1, characterized in that: The installation platform (2) is a rectangular steel cage and is arranged with openings on both sides of the swing plane.

3. The transformer marine environment simulation device according to claim 1, characterized in that: A rotating shaft (11) is rotatably connected to the fixed base (1), and the rotating shaft (11) is fixedly connected to the mounting platform (2); and the rotating drive device (3) is drivingly connected to the rotating shaft (11).

4. The transformer marine environment simulation device according to claim 1, characterized in that: The rotary drive device (3) comprises a motor (31), the motor (31) is connected to a reducer (32), the reducer (32) is connected to a pulley structure (33), and the pulley structure (33) is in transmission connection with the rotary shaft (11).

5. The transformer marine environment simulation device according to claim 1, characterized in that: The fixed base (1) is U-shaped.

6. The transformer marine environment simulation device according to claim 1, characterized in that: There are four of each of the first displacement sensors (5) and the second displacement sensors (6).

7. The transformer marine environment simulation device according to claim 1, characterized in that: The first displacement sensor (5) and the second displacement sensor (6) are communicatively connected to an alarm.

8. A control method for a transformer marine environment simulation device, characterized in that: The transformer marine environment simulation device is as described in any one of claims 1 to 7; specifically comprises the following steps: Step 1: Obtain the relationship between the swing amplitude and wind force level of cargo ships of different tonnages based on measured data: θ=k1×G G is the wind force level, θ is the swing amplitude, and k1 is the swing amplitude coefficient; Step 2: Obtain the relationship between the swing frequency and wind force level of cargo ships of different tonnages based on measured data: Among them, f is the swing frequency, k2 is the swing frequency coefficient; Step 3: Perform data fitting to obtain a first fitting curve of tonnage and swing amplitude coefficient k1 of cargo ships of different tonnages, and a second fitting curve of tonnage and swing frequency coefficient k2 of cargo ships of different tonnages; Step 4: Obtain the total mass m of the packaged transformer and the tonnage of the cargo ship to be transported, and obtain the maximum wind force on the route of the cargo ship to be transported according to the weather forecast, and obtain the swing amplitude coefficient k1 and the swing frequency coefficient k2 corresponding to the cargo ship to be transported under the maximum wind force according to the first fitting curve and the second fitting curve, and then obtain the maximum swing amplitude θ and swing frequency f that the cargo ship to be transported may encounter during transportation; Step 5: The packaged transformer is fastened and fixed on the installation platform (2), and then the installation platform (2) is swung according to the maximum swing amplitude θ and swing frequency f that may be encountered during transportation by the cargo ship to be transported. The first displacement sensor (5) and the second displacement sensor (6) detect whether the surface of the packaging box is displaced. When displacement of the surface of the packaging box is detected, it indicates that the packaging box is broken.

9. The control method of the transformer marine environment simulation device according to claim 8, characterized in that: Before step 5, the maximum destructive force that the packaging box can withstand under the automatic swing with the swing amplitude of θ is obtained according to the maximum swing amplitude θ, so as to ensure that the bearing capacity of the packaging box is greater than the maximum destructive force; Where g is the acceleration due to gravity, F c is the centrifugal force; F c =m*a, a is acceleration, a=ω 2 ×r, then: F c =m×ω 2 ×r ω is the angular velocity and r is the swing radius.

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