Mining flame-proof type dry-type transformer heat dissipation shell

Abstract

The utility model discloses a mining flame-proof type dry-type transformer heat dissipation shell which comprises two fixed box bodies, the sides, away from each other, of the two fixed box bodies are fixedly connected with a protective shell, and the side, away from the fixed box bodies, of the protective shell is fixedly connected with a rotating motor. And the output end of the rotating motor is fixedly connected with a driving rod. The rotating motor is started, the driving rod drives the driving wheel to rotate, power is transmitted to the transmission wheel through the belt, and the transmission rod rotates along with the transmission wheel, so that the driving rod and the transmission rod drive the adjusting blades to deflect in the fixed box body, and the gap between every two adjacent adjusting blades is changed; the adjusting blades can reduce external dust and foreign matter attached to the dustproof net, so that the cleaning frequency of the dustproof net is reduced, the air inlet amount and the air outlet amount are adjusted by controlling the gaps between the adjusting blades, and then the heat dissipation effect of the transmission shell is improved.

Description

Technical Field

[0001] This utility model relates to the field of transformer housing technology, specifically a heat dissipation housing for a mine explosion-proof dry-type transformer. Background Technology

[0002] Mining explosion-proof dry-type transformers are transformers specifically designed for use in mines. They have explosion-proof enclosures and are suitable for mines with mixed gas environments such as methane, coal dust, and coal dust. They can operate safely in high-risk explosive environments, ensuring the reliability and safety of power supply.

[0003] When the transformer is working, in order to ensure that the internal parts are in a normal working environment, a cooling fan is added to the gearbox housing, and a dustproof net is used to block foreign objects and dust from the outside. However, since the dustproof net is in contact with the outside, dust and foreign objects are easily attached to the surface of the dustproof net, causing the mesh to be blocked, which in turn affects the normal heat dissipation of the gearbox housing. Utility Model Content

[0004] The purpose of this utility model is to provide a heat dissipation shell for an explosion-proof dry-type transformer used in mining, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation shell for a mine explosion-proof dry-type transformer, comprising a fixed housing, wherein two fixed housings are provided, and a protective shell is fixedly connected to the side of the two fixed housings that is away from each other. A rotary motor is fixedly connected to the side of the protective shell that is away from the fixed housing, and a drive rod is fixedly connected to the output end of the rotary motor. A drive wheel is fixedly sleeved on the surface of the drive rod, and a belt is provided on the surface of the drive wheel. A transmission wheel is provided on the side of the belt that is away from the drive wheel, and a transmission rod is fixedly connected to the inner wall of the transmission wheel. An adjusting blade is fixedly connected to the side of the transmission rod and the drive rod that is away from the rotary motor, and a rotating rod is fixedly connected to the side of the adjusting blade that is away from the rotary motor.

[0006] As a further preferred embodiment of this technical solution, the drive wheel and transmission wheel are located inside the protective housing, the drive rod and transmission rod are rotatably connected to the fixed housing, and multiple adjustment blades are provided, with multiple adjustment blades located inside the fixed housing.

[0007] As a further preferred embodiment of this technical solution, an installation frame is fixedly connected to the inner wall of the fixed box, a return spring is fixedly connected to the inner wall of the installation frame, a fixing block is fixedly connected to the end of the return spring away from the installation frame, and an insertion rod is fixedly connected to the bottom end of the fixed box.

[0008] As a further preferred embodiment of this technical solution, the number of mounting frames is set to four, the number of fixing blocks corresponds to the number of mounting frames, the bottom of the fixing block is provided with an arc surface, and the number of insert rods is set to four, with the four insert rods located at the four corners of the fixing box.

[0009] As a further preferred embodiment of this technical solution, the bottom of the fixed housing is provided with an installation housing, the front and rear sides of the installation housing are provided with insertion slots, the interior of the installation housing is provided with a dustproof net, both the dustproof net and the top of the installation housing are provided with insertion holes, the inner wall of the installation housing is fixedly connected with a cross mounting plate, and the top of the cross mounting plate is fixedly connected with a cooling fan.

[0010] As a further preferred embodiment of this technical solution, the insertion slot and the fixing block are adapted to each other, the dustproof net is in contact with the fixing box, the insertion hole and the insertion rod are adapted to each other, and the cooling fan is composed of a motor and fan blades.

[0011] As a further preferred embodiment of this technical solution, a cover plate is fixedly connected to the bottom of the mounting box, a transmission housing is provided at the bottom of the cover plate, a fixing screw is threadedly connected to the top of the transmission housing, connecting flanges are fixedly connected to the left and right sides of the transmission housing, and heat dissipation fins are fixedly connected to the front and rear sides of the transmission housing.

[0012] This utility model provides a heat dissipation shell for an explosion-proof dry-type transformer used in mining, which has the following advantages:

[0013] (1) This utility model starts a rotary motor, which drives the drive rod to rotate the drive wheel and transmits the power to the transmission wheel through the belt. The transmission rod rotates accordingly, which causes the drive rod and the transmission rod to drive the adjusting blades to deflect inside the fixed housing. This changes the gap between two adjacent adjusting blades. The adjusting blades can reduce the adhesion of external dust and foreign objects on the dustproof net, thereby reducing the frequency of dustproof net cleaning. Furthermore, by controlling the gap between the adjusting blades, the air intake and exhaust volume can be adjusted, thereby improving the heat dissipation effect of the gearbox housing.

[0014] (2) This utility model places the dustproof net inside the installation box, places the fixed box on the top of the installation box, and presses the fixed box down to make it slide inside the installation box. Since the bottom of the fixed block is provided with an arc surface, the fixed block slides with the inner wall of the installation box and squeezes the return spring. The fixed block moves into the installation frame. After moving down a certain depth, the fixed block returns to its original position under the elastic force of the return spring and is locked in the insertion slot, thereby limiting the dustproof net. At the same time, the insertion rod is inserted into the insertion hole to prevent the dustproof net from shifting during use. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a bottom view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the unfolded structure of the mounting box and dustproof net of this utility model;

[0018] Figure 4 This is a bottom view of the fixed box structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the adjusting blade structure of this utility model.

[0020] In the diagram: 1. Fixed housing; 2. Protective outer shell; 3. Rotary motor; 4. Drive rod; 5. Drive wheel; 6. Belt; 7. Transmission wheel; 8. Transmission rod; 9. Adjusting blade; 10. Rotating rod; 11. Mounting frame; 12. Return spring; 13. Fixing block; 14. Insert rod; 15. Mounting housing; 16. Insertion slot; 17. Dustproof net; 18. Insertion hole; 19. Cross mounting plate; 20. Cooling fan; 21. Cover plate; 22. Gearbox housing; 23. Fixing screw; 24. Connecting flange; 25. Heat dissipation fins. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1 and Figure 5 As shown in this embodiment, a heat dissipation shell for a mine explosion-proof dry-type transformer includes a fixed housing 1. There are two fixed housings 1. A protective shell 2 is fixedly connected to the side of the two fixed housings 1 that is away from each other. A rotary motor 3 is fixedly connected to the side of the protective shell 2 that is away from the fixed housing 1. A drive rod 4 is fixedly connected to the output end of the rotary motor 3. A drive wheel 5 is fixedly sleeved on the surface of the drive rod 4. A belt 6 is provided on the surface of the drive wheel 5. A transmission wheel 7 is provided on the side of the belt 6 that is away from the drive wheel 5. A transmission rod 8 is fixedly connected to the inner wall of the transmission wheel 7. An adjusting blade 9 is fixedly connected to the side of the transmission rod 8 and the side of the drive rod 4 that is away from the rotary motor 3. A rotating rod 10 is fixedly connected to the side of the adjusting blade 9 that is away from the rotary motor 3.

[0023] By installing the fixed housing 1 on top of the dustproof net 17, and with multiple adjusting blades 9 positioned above the dustproof net 17, external dust and foreign objects are reduced from adhering to the dustproof net 17, thus reducing the frequency of cleaning the dustproof net 17. When heat dissipation is required inside the transmission housing 22, the rotary motor 3 is started, causing the drive rod 4 to drive the drive wheel 5 to rotate, and the power is transmitted to the transmission wheel 7 via the belt 6. The transmission rod 8 rotates accordingly, causing the drive rod 4 and the transmission rod 8 to drive the adjusting blades 9 to deflect inside the fixed housing 1, changing the gap between two adjacent adjusting blades 9 to increase the airflow and thus improve the heat dissipation effect of the transmission housing 22.

[0024] The drive wheel 5 and transmission wheel 7 are located inside the protective housing 2. The drive rod 4 and transmission rod 8 are rotatably connected to the fixed housing 1. Multiple adjusting blades 9 are provided, and multiple adjusting blades 9 are located inside the fixed housing 1.

[0025] A mounting frame 11 is fixedly connected to the inner wall of the fixed housing 1. A return spring 12 is fixedly connected to the inner wall of the mounting frame 11. A fixing block 13 is fixedly connected to the end of the return spring 12 away from the mounting frame 11. A plug rod 14 is fixedly connected to the bottom end of the fixed housing 1.

[0026] There are four mounting frames 11, and the number of fixing blocks 13 corresponds to the number of mounting frames 11. The bottom of the fixing block 13 is provided with an arc surface. There are four insertion rods 14, and the four insertion rods 14 are located at the four corners of the fixing box 1.

[0027] The bottom of the fixed housing 1 is provided with a mounting housing 15. The front and rear sides of the mounting housing 15 are provided with insertion slots 16. The interior of the mounting housing 15 is provided with a dustproof net 17. Both the dustproof net 17 and the top of the mounting housing 15 are provided with insertion holes 18. The inner wall of the mounting housing 15 is fixedly connected with a cross mounting plate 19. The top of the cross mounting plate 19 is fixedly connected with a cooling fan 20.

[0028] By placing the dustproof net 17 inside the mounting housing 15 and placing the fixing housing 1 at the top of the mounting housing 15, pressing down on the fixing housing 1 causes it to slide inside the mounting housing 15. Due to the arc surface at the bottom of the fixing block 13, the fixing block 13 slides against the inner wall of the mounting housing 15 and compresses the return spring 12. The fixing block 13 moves into the mounting frame 11. After moving down a certain depth, the fixing block 13 returns to its original position under the elastic force of the return spring 12 and engages inside the insertion slot 16, thereby limiting the dustproof net 17. At the same time, the insertion rod 14 is inserted into the insertion hole 18 to prevent the dustproof net 17 from shifting during use. When it is necessary to remove the dustproof net 17, press the fixing block 13 inward to move it into the mounting frame 11, and pull up the fixing housing 1 to remove it. Then, the dustproof net 17 can be removed and cleaned to ensure the heat dissipation effect of the transmission.

[0029] The insertion slot 16 is compatible with the fixing block 13, the dustproof net 17 is in contact with the fixing box 1, the insertion hole 18 is compatible with the insertion rod 14, and the cooling fan 20 is composed of a motor and fan blades.

[0030] A cover plate 21 is fixedly connected to the bottom of the mounting box 15. A gearbox housing 22 is provided at the bottom of the cover plate 21. A fixing screw 23 is threadedly connected to the top of the gearbox housing 22. Connecting flanges 24 are fixedly connected to the left and right sides of the gearbox housing 22. Heat dissipation fins 25 are fixedly connected to the front and rear sides of the gearbox housing 22.

[0031] By adding multiple heat dissipation fins 25 to the surface of the gearbox housing 22, and using metals with good thermal conductivity, the heat generated inside the gearbox housing 22 can be dissipated through the heat dissipation fins 25 when the gearbox is working. At the same time, the cooling fan 20 is activated to accelerate the airflow inside the gearbox housing 22, so that the heat is moved out of the gearbox housing 22 with the airflow, thereby keeping the internal parts in a normal working environment and improving their service life. In addition, all the shell joint surfaces of the gearbox housing 22 are made according to explosion-proof requirements and can withstand an internal pressure of 0.8 MPa. This can effectively prevent flames and explosion waves from spreading to the external environment when the transformer fails internally or generates sparks, thereby protecting the equipment and personnel safety. A protective plate is installed inside the gearbox housing 22, and solid insulating materials such as epoxy resin are used to improve the electrical strength and safety of the transformer and prevent fires or explosions caused by insulation damage.

[0032] This utility model provides a heat dissipation shell for a mine explosion-proof dry-type transformer, and its specific working principle is as follows:

[0033] In use, the cover plate 21 is installed on the top of the transmission housing 22 and fixed to the transmission housing 22 using fixing screws 23. The dustproof net 17 is placed inside the mounting box 15, and the fixing box 1 is placed on the top of the mounting box 15. The fixing box 1 is pressed down, causing it to slide inside the mounting box 15. The fixing block 13 moves against the inner wall of the mounting box 15 and compresses the return spring 12. The fixing block 13 moves into the mounting frame 11. After moving down a certain depth, the fixing block 13 returns to its original position under the elastic force of the return spring 12 and engages inside the insertion slot 16, thus completing the installation of the fixing box 1. When the transmission is in use, the heat dissipation fins 25 can dissipate the heat generated inside the transmission housing 22. The heat is discharged, and the cooling fan 20 is started at the same time to accelerate the airflow inside the transmission housing 22, so that the heat is removed from the transmission housing 22 with the airflow. The dust screen 17 can prevent dust and foreign objects from entering the transmission housing 22. An adjusting blade 9 is set above the dust screen 17 to reduce the adhesion of dust and foreign objects on the surface of the dust screen 17. When the temperature inside the transmission housing 22 is high, the rotary motor 3 is started, which drives the drive rod 4 to drive the drive wheel 5 to rotate. The power is transmitted to the transmission wheel 7 through the belt 6, and the transmission rod 8 rotates accordingly. This causes the drive rod 4 and the transmission rod 8 to drive the adjusting blade 9 to deflect inside the fixed housing 1, changing the gap between two adjacent adjusting blades 9 to increase the airflow and improve the heat dissipation effect.

[0034] 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. A mine explosion-proof dry-type transformer heat dissipation enclosure comprising a fixed box (1), characterized in that: The number of fixed box body (1) is provided with two, two fixed box body (1) is away from each other side fixedly connected with protective shell (2), the protective shell (2) is away from the side of fixed box body (1) fixedly connected with rotating motor (3), the output end of rotating motor (3) is fixedly connected with drive rod (4), the surface of drive rod (4) is fixedly sleeved with drive wheel (5), the surface of drive wheel (5) is provided with belt (6), the side away from drive wheel (5) of belt (6) is provided with transmission wheel (7), the inner wall of transmission wheel (7) is fixedly connected with transmission rod (8), the side away from rotating motor (3) of transmission rod (8) and drive rod (4) is fixedly connected with adjusting blade (9), the side away from rotating motor (3) of adjusting blade (9) is fixedly connected with rotating rod (10).

2. The mine explosion-proof dry-type transformer heat dissipation enclosure according to claim 1, characterized in that: The drive wheel (5) and transmission wheel (7) are located in the protective shell (2), the drive rod (4) and transmission rod (8) are rotatably connected with the fixed box body (1), the number of adjusting blade (9) is provided with multiple, multiple adjusting blade (9) is located in the fixed box body (1).

3. The mine explosion-proof dry-type transformer heat dissipation enclosure according to claim 1, characterized in that: The inner wall of the fixed box body (1) is fixedly connected with the mounting frame (11), the inner wall of the mounting frame (11) is fixedly connected with the reset spring (12), one end of the reset spring (12) away from the mounting frame (11) is fixedly connected with the fixed block (13), the bottom end of the fixed box body (1) is fixedly connected with the plug rod (14).

4. The mine explosion-proof dry-type transformer heat dissipation enclosure according to claim 3, characterized in that: The number of mounting frame (11) is provided with four, the number of fixed block (13) and mounting frame (11) corresponds, the bottom of fixed block (13) is provided with arc surface, the number of plug rod (14) is provided with four, four plug rod (14) is located in the four corners of fixed box body (1).

5. The mine explosion-proof dry-type transformer heat-dissipation enclosure according to claim 1, characterized in that: The bottom end of the fixed box body (1) is provided with the mounting box (15), the front and rear sides of the mounting box (15) are provided with the plug slot (16), the inside of the mounting box (15) is provided with the dust screen (17), the top of the dust screen (17) and the mounting box (15) is provided with the plug hole (18), the inner wall of the mounting box (15) is fixedly connected with the cross mounting plate (19), the top of the cross mounting plate (19) is fixedly connected with the cooling fan (20).

6. The mine explosion-proof dry-type transformer heat dissipation enclosure according to claim 5, characterized in that: The plug slot (16) and the fixed block (13) are matched, the dust screen (17) and the fixed box body (1) are in contact, the plug hole (18) and the plug rod (14) are matched, the cooling fan (20) is composed of motor and fan blade.

7. The mine explosion-proof dry-type transformer heat dissipation enclosure according to claim 5, characterized in that: The bottom end of the mounting box (15) is fixedly connected with the cover plate (21), the bottom end of the cover plate (21) is provided with the transmission housing (22), the top of the transmission housing (22) is threadedly connected with the fixed screw (23), the left and right sides of the transmission housing (22) are fixedly connected with the connecting flange (24), the front and rear sides of the transmission housing (22) are fixedly connected with the heat dissipation fin (25).

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