A kind of intelligent substation transformer air cooling system blade angle automatic regulating structure

Abstract

The utility model discloses a kind of intelligent substation transformer air cooling system blade angle automatic regulating structure, including mounting plate, the top of mounting plate is provided with transformer, the upper portion of transformer is provided with casing, the inside of casing is provided with micro motor, the output shaft of micro motor is fixed with vertical rod, the outer wall of vertical rod is rotated and connected with disc body through bearing upper portion, micro motor is bolted on the top of disc body, the outer wall lower portion of vertical rod is rotated and connected with first bevel gear. The utility model relates to the technical field of intelligent substation equipment, by the cooperation between micro motor, vertical rod, first bevel gear, second bevel gear and connecting barrel, the angle of automatic regulation blade is realized, since the angle of most of traditional air cooling system is fixed, the angle of blade cannot be automatically regulated according to the temperature of transformer, thereby the cooling effect of air cooling system is reduced.

Description

Technical Field

[0001] This utility model relates to the field of intelligent substation equipment technology, specifically to an automatic blade angle adjustment structure for an air-cooled system of an intelligent substation transformer. Background Technology

[0002] A smart substation is a new type of substation that integrates advanced technology and environmentally friendly design. It is mainly used for temporary or emergency power supply scenarios. The transformer is one of the core equipment of a smart substation. It generates a lot of heat during operation, so it needs to be cooled by an air-cooling system.

[0003] When the air-cooling system dissipates heat from the transformer inside the smart substation, the air-cooling system is installed above the transformer. The blades inside the air-cooling system rotate and blow air downwards, allowing cold air to flow through the transformer, while hot air is exhausted from all around the transformer.

[0004] However, since most traditional air-cooling systems have fixed angles, the blades cannot automatically adjust their angles according to the transformer's temperature. When the transformer generates less heat, the fixed-angle fan blades still operate at a high speed and airflow, resulting in wasted energy. When the transformer temperature is high, the fixed-angle blades cannot provide enough airflow, preventing the transformer from cooling down quickly and thus reducing the cooling effect of the air-cooling system. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system. This solves the problem that traditional air-cooling systems mostly have fixed angles, which prevents the blades from automatically adjusting their angles according to the transformer's temperature, thus reducing the cooling effect of the air-cooling system.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic blade angle adjustment structure for an intelligent substation transformer air-cooled system, comprising a mounting plate, a transformer mounted on top of the mounting plate, a housing mounted above the transformer, a micro motor mounted inside the housing, a vertical rod fixedly connected to the output shaft of the micro motor, a disc rotatably connected to the upper outer wall of the vertical rod via a bearing, the micro motor fixedly connected to the top of the disc via bolts, a first bevel gear rotatably connected to the lower outer wall of the vertical rod, a second bevel gear meshing above the first bevel gear, a connecting cylinder fixedly connected to the inner wall of the second bevel gear, the outer wall of the connecting cylinder rotatably connected to the inner wall of the disc via a bearing, and blades inserted into the inner wall of the connecting cylinder.

[0007] Preferably, the outer wall of the blade end is provided with a groove, the inner wall of the connecting cylinder is fixedly connected with a protrusion, the protrusion is slidably connected to the inner wall of the groove, the outer wall of the blade is fitted with a hollow sleeve, the outer wall of the hollow sleeve is provided with a first thread, the outer wall of the connecting cylinder is provided with a second thread, and the outer wall of the first thread is threaded to the second thread.

[0008] Preferably, the top of the disk is fixedly connected to a housing by bolts, the top of the housing is fixedly connected to a T-shaped plate by bolts, the top of the T-shaped plate is fixedly connected to a servo motor, and the servo motor is fixedly connected to the top of the inner wall of the housing by a motor sleeve.

[0009] Preferably, a pulley is fixed to the side wall of the housing, and the outer wall of the pulley is attached to the inner wall of the housing.

[0010] Preferably, the surface of the mounting plate is fixed to a mounting base by bolts, and the top of the mounting base is fixedly connected to the bottom of the transformer by bolts.

[0011] Preferably, upright plates are fixed to both sides of the surface of the mounting plate, and the two sides of the housing are respectively fixed to the upper side of the outer wall of the upright plate that are close to each other by bolts.

[0012] Preferably, a conductive slip ring is fixed to the outer wall of the T-shaped plate, and a brush assembly is attached to the side wall of the conductive slip ring. The brush assembly is fixed to the inner wall of the housing near the T-shaped plate.

[0013] Beneficial effects

[0014] This invention provides an automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system. It offers the following advantages: This automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system achieves automatic blade angle adjustment through the cooperation of a micro-motor, a vertical pole, a first bevel gear, a second bevel gear, and a connecting cylinder. This solves the problem that traditional air-cooling systems mostly have fixed angles, preventing blades from automatically adjusting their angle according to the transformer's temperature, thus reducing the cooling effect of the air-cooling system.

[0015] By using the engagement of the protrusion, groove, hollow sleeve, first thread, and second thread, the blades can be quickly replaced. This solves the problem that in traditional air-cooled systems, blades are mostly connected to other connections using bolt fastening, which means that when replacing a damaged blade, the operator needs to turn multiple bolts one by one, which is not only time-consuming but also makes it impossible to replace the blade quickly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 An exterior schematic diagram;

[0018] Figure 3 for Figure 1 A structural diagram of the servo motor, T-shaped plate, and micro motor;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure of the central disc, blades, and connecting cylinder;

[0020] Figure 5 for Figure 3 A schematic diagram of the structure of the central rod, the first bevel gear, and the second bevel gear.

[0021] In the diagram: 1. Mounting plate; 2. Transformer; 3. Vertical plate; 4. Housing; 5. Blade; 6. Servo motor; 7. T-shaped plate; 8. Outer shell; 9. Micro motor; 10. Disc; 11. Vertical pole; 12. First bevel gear; 13. Second bevel gear; 14. Connecting cylinder; 15. Pulley; 16. Protrusion; 17. Groove; 18. Hollow sleeve; 19. First thread; 20. Second thread; 21. Mounting base; 22. Conductive slip ring; 23. Brush assembly. Detailed Implementation

[0022] 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 embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Because traditional air-cooling systems mostly have fixed angles, the blades cannot automatically adjust their angles according to the transformer's temperature, thus reducing the cooling effect of the air-cooling system.

[0024] In view of this, the present invention provides an automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system. Through the cooperation between a micro motor, a pole, a first bevel gear, a second bevel gear, and a connecting cylinder, the blade angle is automatically adjusted. This solves the problem that in traditional air-cooling systems, most angles are fixed, which prevents the blades from automatically adjusting their angle according to the transformer temperature, thus reducing the cooling effect of the air-cooling system.

[0025] Those skilled in the art will connect the electrical components and their compatible power supplies in this case using wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle below, where the electrical components are connected in the order of operation. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of electrical control.

[0026] Example 1, by Figure 1-5 As can be seen, the automatic blade angle adjustment structure of the air-cooled system of the intelligent substation transformer in this case includes a mounting plate 1, a transformer 2 is set on the top of the mounting plate 1, a housing 4 is set on the top of the transformer 2, a micro motor 9 is set inside the housing 4, the output shaft of the micro motor 9 is fixedly connected to a vertical rod 11, a disc body 10 is rotatably connected to the top of the outer wall of the vertical rod 11 via a bearing, the micro motor 9 is fixedly connected to the top of the disc body 10 by bolts, a first bevel gear 12 is rotatably connected to the bottom of the outer wall of the vertical rod 11, a second bevel gear 13 is meshed above the first bevel gear 12, a connecting cylinder 14 is fixedly connected to the inner wall of the second bevel gear 13, the outer wall of the connecting cylinder 14 is rotatably connected to the inner wall of the disc body 10 via a bearing, and blades 5 are inserted into the inner wall of the connecting cylinder 14.

[0027] In the specific implementation process, it is worth noting that four mounting holes can be opened on the surface of the mounting plate 1, distributed at the four corners of the mounting plate 1. Workers can install the transformer into the intelligent substation position through these mounting holes. Dustproof nets are installed on the top and bottom of the housing 4, and these nets can be connected to the housing 4 with bolts. Workers can remove and install the dustproof nets by rotating the bolts, allowing for surface cleaning. The micro motor 9 is model PK566-BH. The connection between the micro motor 9 and the external controller uses a drive cable for power supply and control signal transmission. The power cable is an RVV type multi-core flexible cable, providing a stable DC or AC power supply to the micro motor 9. The control signal cable is a shielded twisted pair cable, such as an RVVP type cable. The cable is used to transmit PWM signals or speed and direction control signals, reduce electromagnetic interference, and ensure the accuracy of signal transmission. A temperature sensor is installed inside the transformer 2 to monitor the internal temperature of the transformer 2. When the temperature sensor detects a change in the internal temperature of the transformer 2, it transmits the signal to the external controller. The controller starts the micro motor 9 to work. The micro motor 9 drives the upright 11 to rotate, the upright 11 drives the first bevel gear 12 to rotate, the first bevel gear 12 drives the second bevel gear 13 to rotate, the second bevel gear 13 drives the connecting cylinder 14 to rotate, and the connecting cylinder 14 drives the blade 5 to rotate, adjusting the angle of the blade 5 to the specified angle. After the adjustment is completed, the controller stops the micro motor 9 to work, realizing the automatic adjustment of the angle of the blade 5.

[0028] Furthermore, a groove 17 is provided on the outer wall of the end of the blade 5, a protrusion 16 is fixedly connected to the inner wall of the connecting cylinder 14, the protrusion 16 is slidably connected to the inner wall of the groove 17, a hollow sleeve 18 is sleeved on the outer wall of the blade 5, a first thread 19 is provided on the outer wall of the hollow sleeve 18, a second thread 20 is provided on the outer wall of the connecting cylinder 14, and the outer wall of the first thread 19 is threadedly connected to the second thread 20.

[0029] In the specific implementation process, it is worth noting that the hollow sleeve 18 is made of polyoxymethylene plastic, which has good wear resistance and self-lubricating properties. The groove 17 is dovetail-shaped, with a groove depth of 5mm and a groove width of 8mm. The shape of the protrusion 16 matches the shape of the groove 17. When replacing the damaged blade 5, the operator first removes the dust screen at the bottom of the housing 4. Then, the operator rotates the hollow sleeve 18 in sequence. The surface of the hollow sleeve 18 has anti-slip textures, which increase the friction of the surface of the hollow sleeve 18. The hollow sleeve 18 is rotated off the connecting cylinder 14, thereby releasing the blade 5 from its fixation. The operator then removes the damaged blade 5. After disassembly, the worker aligns the groove 17 of the new blade 5 with the position of the protrusion 16. The worker moves the blade 5 and inserts it into the interior of the connecting cylinder 14. At this time, the protrusion 16 moves in the groove 17, moving to the end of the groove 17, thereby positioning the blade 5. Finally, the worker rotates the hollow sleeve 18 on the blade 5. The hollow sleeve 18 drives the first thread 19 to rotate. The first thread 19 moves along the second thread 20, rotating the hollow sleeve 18 onto the connecting cylinder 14, so that the end of the hollow sleeve 18 is tightly pressed against the end of the connecting cylinder 14, completing the replacement of the blade 5 and achieving a quick replacement of the blade 5.

[0030] Furthermore, the top of the disk body 10 is fixedly connected to the outer shell 8 by bolts, the top of the outer shell 8 is fixedly connected to the T-shaped plate 7 by bolts, the top of the T-shaped plate 7 is fixedly connected to the servo motor 6, and the servo motor 6 is fixedly connected to the top of the inner wall of the housing 4 by a motor sleeve.

[0031] In the specific implementation process, it is worth noting that the model of servo motor 6 is MSMD012G1U. The connection method between servo motor 6 and external controller is to use drive cable to realize power supply and control signal transmission. The power cable is selected as RVV type multi-core soft cable to provide stable DC or AC power to servo motor 6. The control signal line is selected as shielded twisted pair cable, such as RVVP type cable, to transmit PWM signal or speed and direction control signal, reduce electromagnetic interference, and ensure the accuracy of signal transmission. When cooling the transformer, the operator controls servo motor 6 to work through the controller. Servo motor 6 drives T-shaped plate 7 to rotate, and T-shaped plate 7 drives shell 8 to rotate. Heat dissipation holes are opened on both sides of shell 8 to dissipate heat from micro motor 9. Shell 8 drives disk 10 to rotate, thereby driving blade 5 to rotate, thereby cooling transformer 2 and driving blade 5 to rotate.

[0032] Furthermore, a pulley 15 is fixed to the side wall of the outer casing 8, and the outer wall of the pulley 15 is attached to the inner wall of the casing 4.

[0033] In the specific implementation process, it is worth noting that when the outer shell 8 rotates, the outer shell 8 drives the pulley 15 to rotate. The pulley 15 can be connected to the outer shell 8 by bolts. The pulley 15 rotates in the slide rail on the inner wall of the housing 4 to limit the outer shell 8 and provide auxiliary support for the rotation of the disc 10, thereby making the rotation of the blade 5 more stable.

[0034] Example 2, by Figure 1 and 2 It can be seen that the surface of the mounting plate 1 is fixed to the mounting base 21 by bolts, and the top of the mounting base 21 is fixed to the bottom of the transformer 2 by bolts.

[0035] In the specific implementation process, it is worth noting that the staff can install the bottom of the mounting base 21 onto the mounting plate 1 and the top of the mounting base 21 onto the transformer 2 by rotating the upper bolt of the mounting base 21.

[0036] Furthermore, upright plates 3 are fixedly attached to both sides of the surface of the mounting plate 1, and the two sides of the housing 4 are respectively fixedly connected to the upper side of the outer wall of the upright plate 3 that are close to each other by bolts.

[0037] In the specific implementation process, it is worth noting that the upright plate 3 supports the casing 4, and the surface of the upright plate 3 is provided with through grooves to allow air to circulate.

[0038] Furthermore, a conductive slip ring 22 is fixed to the outer wall of the T-shaped plate 7, and a brush assembly 23 is attached to the side wall of the conductive slip ring 22. The brush assembly 23 is fixed to the inner wall of the housing 4 on the side close to the T-shaped plate 7.

[0039] In the specific implementation process, it is worth noting that the brush assembly 23 is model J201, the conductive slip ring 22 is fixed on the T-shaped plate 7 and connected to the lead wire of the micro motor 9. The brush assembly 23 contacts the conductive slip ring 22 to transfer electrical energy, so that the micro motor 9 can be continuously powered in the rotating state.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system, comprising a mounting plate (1), characterized in that: A transformer (2) is provided on the top of the mounting plate (1), and a housing (4) is provided above the transformer (2). A micro motor (9) is provided inside the housing (4). The output shaft of the micro motor (9) is fixedly connected to a pole (11). A disc (10) is rotatably connected to the upper part of the outer wall of the pole (11) via a bearing. The micro motor (9) is fixedly connected to the top of the disc (10) by bolts. A first bevel gear (12) is rotatably connected to the lower part of the outer wall of the pole (11). A second bevel gear (13) is meshed above the first bevel gear (12). A connecting cylinder (14) is fixedly connected to the inner wall of the second bevel gear (13). The outer wall of the connecting cylinder (14) is rotatably connected to the inner wall of the disc (10) via a bearing. A blade (5) is inserted into the inner wall of the connecting cylinder (14).

2. The automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system according to claim 1, characterized in that: The blade (5) has a groove (17) on its outer wall at the end. The inner wall of the connecting cylinder (14) is fixed with a protrusion (16). The protrusion (16) is slidably connected to the inner wall of the groove (17). The outer wall of the blade (5) is fitted with a hollow sleeve (18). The outer wall of the hollow sleeve (18) has a first thread (19). The outer wall of the connecting cylinder (14) has a second thread (20). The outer wall of the first thread (19) is threaded to the second thread (20).

3. The automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system according to claim 1, characterized in that: The top of the disk body (10) is fixedly connected to the outer shell (8) by bolts. The top of the outer shell (8) is fixedly connected to the T-shaped plate (7) by bolts. The top of the T-shaped plate (7) is fixedly connected to the servo motor (6). The servo motor (6) is fixedly connected to the top of the inner wall of the casing (4) by a motor sleeve.

4. The automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system according to claim 3, characterized in that: A pulley (15) is fixed to the side wall of the outer casing (8), and the outer wall of the pulley (15) is attached to the inner wall of the casing (4).

5. The automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system according to claim 1, characterized in that: The mounting plate (1) is fixed to a mounting base (21) by bolts, and the top of the mounting base (21) is fixed to the bottom of the transformer (2) by bolts.

6. The automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system according to claim 1, characterized in that: Both sides of the mounting plate (1) are fixedly connected to the vertical plate (3), and the two sides of the housing (4) are respectively fixedly connected to the upper side of the outer wall of the vertical plate (3) that are close to each other by bolts.

7. The automatic blade angle adjustment structure for an intelligent substation transformer air-cooling system according to claim 3, characterized in that: A conductive slip ring (22) is fixed to the outer wall of the T-shaped plate (7), and a brush assembly (23) is attached to the side wall of the conductive slip ring (22). The brush assembly (23) is fixed to the inner wall of the housing (4) on the side close to the T-shaped plate (7).

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