Insulator with self-cleaning function

Abstract

The invention relates to an insulator with a self-cleaning function, and the insulator comprises an insulating medium and a driving device, the bottom of the insulating medium is provided with a plurality of concentric annular grooves, the bottom of the insulating medium is provided with a supporting rod, the supporting rod is sleeved with an incomplete bevel gear, the supporting rod is rotatably provided with a rotating sleeve, and the rotating sleeve is provided with a guide rod and a reciprocating screw rod. A complete bevel gear is arranged on the reciprocating lead screw, the reciprocating lead screw and the guide rod are connected with a lead screw seat, the top of the lead screw seat is connected with a brush through a plurality of magnetic suspension structures, and the driving mechanism is connected to the rotating sleeve and the supporting rod and used for driving the rotating sleeve to rotate on the supporting rod. The rotating sleeve drives the complete bevel gear through the reciprocating screw rod to be meshed with the incomplete bevel gear once every time the complete bevel gear rotates by one circle, so that the brush moves to the next position in the radial direction of the insulating medium for cleaning every time the brush rotates by one circle. On the premise that the size of the insulator is not increased, the creepage distance can be increased, the lower surface of the insulator can be automatically cleaned, the flashover risk is reduced, and the power transmission safety is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of insulators, and in particular relates to an insulator with a self-cleaning function. Background Art

[0002] Insulators include porcelain insulators, glass insulators and composite insulators. Different types of insulators have their own structural characteristics to meet different power transmission needs. Insulators play a vital role in transmission lines. On the one hand, they play the role of electrical insulation. In transmission lines of different voltage levels, they can effectively prevent current from leaking to the tower and ensure the safe transmission of electric energy. On the other hand, insulators undertake the task of mechanical support. When subjected to mechanical forces such as conductor gravity, wind force, and ice, they can maintain the stable operation of the transmission line.

[0003] The insulator in the prior art includes an insulating medium with an umbrella-shaped structure. The insulating medium is made of insulating materials such as ceramic or glass. The upper surface of the insulating medium is designed to be an umbrella-shaped structure, which is conducive to the wind or rain washing its upper surface during daily use and automatically cleaning dust and other dirt, thereby avoiding flashover of the insulating medium. A fixed structure for connecting wires is provided at the highest point on the top of the insulating medium, and a support portion is provided at the bottom of the insulating medium for mounting the insulator on a pole tower. However, the lower surface of the insulator in the prior art is a planar structure, which results in a small creepage distance, and the lower surface of the insulating medium is not easily washed by rainwater and automatically cleaned, resulting in a large amount of dust and other dirt adhering to its lower surface, increasing the risk of flashover. Summary of the invention

[0004] The present invention provides an insulator with a self-cleaning function, which can increase the creepage distance without increasing the volume of the insulator, and can also automatically clean the lower surface of the insulator, thereby reducing the risk of flashover and greatly improving power transmission safety.

[0005] The technical solution adopted by the present invention is:

[0006] An insulator with a self-cleaning function comprises an insulating medium and a driving device, wherein the insulating medium is a conical structure, the top and bottom of the insulating medium are respectively provided with a fixed structure and a plurality of concentric annular grooves, the bottom of the insulating medium is provided with a support rod, the support rod is located at the center of the annular groove, an incomplete bevel gear is sleeved on the support rod, a rotating sleeve is rotatably sleeved on the support rod, a guide rod and a reciprocating screw rod are parallelly arranged on the rotating sleeve, a complete bevel gear is sleeved on the reciprocating screw rod, the reciprocating screw rod and the guide rod are jointly connected with a screw rod seat, a brush is connected to the top of the screw rod seat through a plurality of magnetic suspension structures, the bristles of the brush are attached to the bottom of the insulating medium, the width of the brush is smaller than the radius of the lower surface of the insulating medium, the driving mechanism is connected to the rotating sleeve and the support rod, and is used to drive the rotating sleeve to rotate on the support rod, so that the rotating sleeve drives the complete bevel gear to mesh with the incomplete bevel gear once every rotation through the reciprocating screw rod, so that the brush moves to the next position along the insulating medium radial direction for cleaning after each rotation;

[0007] The magnetic levitation structure includes a jacket arranged on the top of the screw seat, the top and bottom of the jacket are both open structures, a floating rod is commonly passed through the two openings of the jacket, an upper magnetic ring and a lower magnetic ring are respectively provided on the floating rod, the upper magnetic ring and the lower magnetic ring are respectively located at the upper and lower parts of the jacket, an upper magnetic ring and a lower magnetic ring are also respectively provided on the top and the bottom of the jacket, the two opposite end magnetic poles of the two upper magnetic rings are opposite, the two opposite end magnetic poles of the two lower magnetic rings are opposite, an outer magnetic sleeve is provided on the inner wall of the jacket, an inner magnetic sleeve is provided on the floating rod, the inner magnetic sleeve and the outer magnetic sleeve are aligned, and the magnetic poles of the opposite surfaces of the two are opposite, and the brush is provided on the upper end of the floating rod.

[0008] Furthermore, the upper and lower sides of the floating rod are connected with an upper ring and a lower ring respectively through a plurality of connecting rods, and the upper magnetic ring 1 and the lower magnetic ring 1 are respectively arranged on the lower surface of the upper ring and the upper surface of the lower ring.

[0009] Furthermore, a U-shaped rod is provided on the top of the screw seat, and the outer sleeve is provided on the U-shaped rod.

[0010] Furthermore, the driving mechanism includes a passive gear sleeved on the rotating sleeve and a motor arranged on the support rod, the output shaft of the motor is connected to a driving gear, and the driving gear is meshed with the passive gear.

[0011] Furthermore, the driving mechanism includes fan blades arranged on the rotating sleeve.

[0012] Furthermore, a mounting groove is provided on the support rod, and the rotating sleeve is arranged in the mounting groove. Two upper magnetic rings are relatively provided on the top of the mounting groove and the top of the rotating sleeve, and the two opposite end magnetic poles of the two upper magnetic rings are opposite. Two lower magnetic rings are relatively provided on the bottom of the mounting groove and the bottom of the rotating sleeve, and the two opposite end magnetic poles of the two lower magnetic rings are opposite. Two inner magnetic sleeves are sleeved on the inner wall of the mounting groove, and two outer magnetic sleeves are provided on the inner wall of the rotating sleeve. The opposite surface magnetic poles of the outer magnetic sleeve and the inner magnetic sleeve are opposite and aligned, so that the rotating sleeve is suspended in the mounting groove.

[0013] Furthermore, the rotating sleeve and the support rod are connected via a bearing.

[0014] Furthermore, the distance between any two adjacent annular grooves is the same, the width of the brush is greater than or equal to the distance between the two adjacent annular grooves, the distance that the brush moves radially along the insulating medium each time is equal to the distance between the two adjacent annular grooves, and when the brush rotates circumferentially along the insulating medium, the middle of the brush is aligned with the middle of the two adjacent annular grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By concentrically arranging a plurality of annular grooves on the lower surface of the insulating medium, the creepage distance can be increased without increasing the volume of the insulator. The driving mechanism is used to drive the rotating sleeve to rotate on the support rod, so that the rotating sleeve drives the complete bevel gear to mesh with the incomplete bevel gear once every rotation through the reciprocating screw. After each rotation of the brush, it moves to the next position along the radial direction of the insulating medium for cleaning. It can also automatically clean the lower surface of the insulator, thereby improving the cleanliness of the lower surface of the insulating medium, reducing the risk of flashover, and greatly improving the safety of power transmission.

[0017] 2. The floating rod is fixed in the outer sleeve by the cooperation of the upper magnetic ring 1, the lower magnetic ring 1, the inner magnetic sleeve 1 and the outer magnetic sleeve 1, and the two are not in contact. This can prevent the current from being transmitted to the reciprocating screw rod and the guide rod through the lower surface of the insulating medium and the brush, which is conducive to increasing the creepage distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1;

[0019] Figure 2 for Figure 1 A in the enlarged view;

[0020] Figure 3 for Figure 1 The enlarged view of point B in the figure;

[0021] Figure 4 for Figure 2 Sectional view in CC;

[0022] Figure 5 It is a bottom view of the incomplete bevel gear in the first embodiment;

[0023] Figure 6 It is a schematic diagram of the local structure of the second embodiment;

[0024] Figure 7 It is a partial structural diagram of the third embodiment;

[0025] In the figure: 1. insulating medium; 2. annular groove; 3. support rod; 4. rotating sleeve; 5. fan blade; 6. guide rod; 7. reciprocating screw; 8. connecting rod; 9. screw seat; 10. U-shaped rod; 11. lower ring; 12. lower magnetic ring one; 13. outer sleeve; 14. inner magnetic sleeve one; 15. outer magnetic sleeve one; 16. upper magnetic ring one; 17. upper ring; 18. brush; 19. complete bevel gear; 20. incomplete bevel gear; 21. meshing teeth; 22. passive gear; 23. motor; 24. driving gear; 25. lower magnetic ring two; 26. outer magnetic sleeve two; 27. upper magnetic ring two; 28. mounting groove; 29. ​​inner magnetic sleeve two; 30. floating rod. DETAILED DESCRIPTION

[0026] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0027] Embodiment 1:

[0028] See also Figures 1 to 5 The present invention provides an insulator with a self-cleaning function, comprising an insulating medium 1 and a driving device, wherein the insulating medium 1 is a conical structure, wherein a fixing structure and a plurality of concentric annular grooves 2 are respectively provided at the top and the bottom of the insulating medium 1, and a support rod 3 is vertically fixedly provided at the bottom of the insulating medium 1, and the support rod 3 is located at the center of the annular groove 2. By providing a plurality of concentric annular grooves 2 on the lower surface of the insulating medium 1, current flows to the support rod 3 through the outer surface of the insulating medium 1 and the wavy surface at the bottom of the insulating medium 1, thereby increasing the creepage distance without increasing the volume of the insulator;

[0029] An incomplete bevel gear 20 is fixedly sleeved on the support rod 3, a rotating sleeve 4 is provided on the support rod 3 through a bearing rotating sleeve, a guide rod 6 and a reciprocating screw rod 7 are parallelly provided on the rotating sleeve 4, the guide rod 6 is fixedly connected to the rotating sleeve 4, the reciprocating screw rod 7 is rotatably connected to the rotating sleeve 4, the axes of the guide rod 6 and the reciprocating screw rod 7 pass through the axis of the support rod 3 and are perpendicular to each other, a complete bevel gear 19 is fixedly sleeved on the reciprocating screw rod 7, the reciprocating screw rod 7 and the guide rod 6 are commonly connected to a screw seat 9, the reciprocating screw rod 7 is threadedly connected to the screw seat 9, the guide rod 6 is slidably connected to the screw seat 9, a brush 18 is connected to the top of the screw seat 9 through a plurality of magnetic suspension structures, the upper end of the bristles of the brush 18 is attached to the bottom of the insulating medium 1, the width of the brush 18 is smaller than the radius of the lower surface of the insulating medium 1, the driving mechanism is connected to the rotating sleeve 4 and the support rod 3, when the driving mechanism drives the rotating sleeve 4 to rotate on the support rod 3, the rotating sleeve 4 drives the guide rod 6 and the reciprocating screw rod 7 around the support rod 3 Rotation, the reciprocating screw 7 drives the complete bevel gear 19 to rotate around the support rod 3. Since the complete bevel gear 19 is provided with complete meshing teeth 21 in the circumference, and the incomplete bevel gear 20 is only provided with partial meshing teeth 21, the other circumferential parts thereof are smooth structures, so that the rotating sleeve 4 drives the complete bevel gear 19 through the reciprocating screw 7 to mesh with the incomplete bevel gear 20 once every rotation. When meshing, the incomplete bevel gear 20 drives the reciprocating screw 7 to rotate on the rotating sleeve 4. Under the cooperation of the guide rod 6, the reciprocating screw 7 drives the screw seat 9 to move radially along the insulating medium 1, so that the reciprocating screw 7 drives the brush 18 through the screw seat 9 and the magnetic suspension structure to move radially to the next position of the insulating medium 1 for cleaning after each rotation. The lower surface of the insulating medium 1 can be cleaned reciprocatingly, thereby improving the cleanliness of the lower surface of the insulating medium 1, reducing the risk of flashover, and greatly improving the safety of power transmission;

[0030] The magnetic suspension structure includes a jacket 13 fixed on the top of the screw seat 9. The top and bottom of the jacket 13 are both open structures. A floating rod 30 is vertically provided in the two openings of the jacket 13. An upper magnetic ring 16 and a lower magnetic ring 12 are fixed on the floating rod 30. The upper magnetic ring 16 and the lower magnetic ring 12 are respectively located at the upper and lower parts of the jacket 13. The top and bottom of the jacket 13 are also fixed with an upper magnetic ring 16 and a lower magnetic ring 12. The two upper magnetic rings 16 are aligned, and the magnetic poles of the opposite ends of the two upper magnetic rings are opposite. The two lower magnetic rings A magnetic sleeve 15 is fixed on the inner wall of the outer sleeve 13, and an inner magnetic sleeve 14 is fixed on the float rod 30. The inner magnetic sleeve 14 and the outer magnetic sleeve 15 are aligned, and the magnetic poles of the opposite surfaces of the two are opposite. The brush 18 is fixed on the upper end of the float rod 30, so that the float rod 30 is positioned in the middle of the outer sleeve 13 and does not contact the outer sleeve 13. This can prevent the current from being transmitted to the reciprocating screw 7 and the guide rod 6 through the lower surface of the insulating medium 1 and the brush 18, which is beneficial to increase the creepage distance.

[0031] Preferably, the upper and lower sides of the floating rod 30 are fixedly connected to the upper ring 17 and the lower ring 11 through multiple connecting rods 8, and the upper magnetic ring 16 and the lower magnetic ring 12 are fixedly arranged on the lower surface of the upper ring 17 and the upper surface of the lower ring 11 respectively.

[0032] Preferably, a U-shaped rod 10 is fixedly provided on the top of the screw seat 9 , and a sleeve 13 is fixedly provided on the U-shaped rod 10 . There are two sleeves 13 , so that the brush 18 can be prevented from rotating relative to the screw seat 9 .

[0033] Preferably, the driving mechanism includes fan blades 5 fixed on the rotating sleeve 4. Since the insulator is generally installed at a high position of the pole tower in an environment with strong winds, the wind can be used to blow on the fan blades 5, thereby driving the rotating sleeve 4 to rotate on the support rod 3, achieving the effect of energy saving and self-cleaning.

[0034] Preferably, the distance between any two adjacent annular grooves 2 is the same, and the width of the brush 18 is slightly greater than or equal to the distance between the two adjacent annular grooves 2. The purpose is to avoid that the contact width between the brush 18 and the insulating medium 1 is too large, which causes the current to directly pass through the brush 18 across the annular groove 2 and reduce the creepage distance. The distance that the brush 18 moves radially along the insulating medium 1 each time is equal to the distance between the two adjacent annular grooves 2. When the brush 18 rotates circumferentially along the insulating medium 1, the middle of the brush 18 is aligned with the middle of the two adjacent annular grooves 2. This ensures that the next area is continuously swept after the rotating brush sweeps a circle, avoiding the formation of a circular sweeping missing area after radial movement.

[0035] Embodiment 2:

[0036] See also Figure 6 , which is different from the first embodiment in that:

[0037] Preferably, the driving mechanism includes a passive gear 22 fixedly mounted on the rotating sleeve 4 and a motor 23 fixedly mounted on the support rod 3, the output shaft of the motor 23 is fixedly connected to a driving gear 24, the driving gear 24 is meshed with the passive gear 22, the motor 23 is used to drive the driving gear 24 to rotate, and the driving gear 24 drives the rotating sleeve 4 to rotate on the support rod 3 through the passive gear 22, so that the insulating medium 1 can be cleaned.

[0038] Embodiment three:

[0039] See also Figure 7 , which is different from the first and second embodiments in that:

[0040] Preferably, an annular mounting groove 28 is provided on the support rod 3, and the rotating sleeve 4 is sleeved in the mounting groove 28. An upper magnetic ring 27 is relatively fixedly provided on the top of the mounting groove 28 and the top of the rotating sleeve 4, the two upper magnetic rings 27 are aligned, and the magnetic poles of the opposite ends are opposite, and a lower magnetic ring 25 is relatively provided on the bottom of the mounting groove 28 and the bottom of the rotating sleeve 4, the two lower magnetic rings 25 are aligned, and the magnetic poles of the opposite ends are opposite, an inner magnetic sleeve 29 is fixedly sleeved on the inner wall of the mounting groove 28, and an outer magnetic sleeve 26 is fixedly provided on the inner wall of the rotating sleeve 4, and the magnetic poles of the opposite surfaces of the outer magnetic sleeve 26 and the inner magnetic sleeve 29 are opposite and aligned, so that the rotating sleeve 4 is positioned in the mounting groove 28, and the rotating sleeve 4 does not contact the support rod 3, so that the rotating sleeve 4 can rotate freely in the mounting groove 28, and its rotation resistance is extremely small, so that when a small wind blows on the fan blade 5, it can be driven for self-cleaning.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An insulator with a self-cleaning function, characterized in that: The invention comprises an insulating medium and a driving device, wherein the insulating medium is a conical structure, the top and bottom of the insulating medium are respectively provided with a fixed structure and a plurality of concentric annular grooves, the bottom of the insulating medium is provided with a support rod, the support rod is located at the center of the annular groove, an incomplete bevel gear is sleeved on the support rod, a rotating sleeve is provided on the support rod, a guide rod and a reciprocating screw rod are rotatably sleeved on the rotating sleeve, a complete bevel gear is sleeved on the reciprocating screw rod, the reciprocating screw rod and the guide rod are connected with a screw rod seat together, a brush is connected with the top of the screw rod seat through a plurality of magnetic suspension structures, the bristles of the brush are attached to the bottom of the insulating medium, the width of the brush is smaller than the radius of the lower surface of the insulating medium, the driving mechanism is connected to the rotating sleeve and the support rod, and is used to drive the rotating sleeve to rotate on the support rod, so that the rotating sleeve drives the complete bevel gear to mesh with the incomplete bevel gear once every rotation through the reciprocating screw rod, so that the brush moves to the next position along the insulating medium radial direction for cleaning after each rotation; The magnetic levitation structure includes a jacket arranged on the top of the screw seat, the top and bottom of the jacket are both open structures, a floating rod is commonly passed through the two openings of the jacket, an upper magnetic ring and a lower magnetic ring are respectively provided on the floating rod, the upper magnetic ring and the lower magnetic ring are respectively located at the upper and lower parts of the jacket, an upper magnetic ring and a lower magnetic ring are also respectively provided on the top and the bottom of the jacket, the two opposite end magnetic poles of the two upper magnetic rings are opposite, the two opposite end magnetic poles of the two lower magnetic rings are opposite, an outer magnetic sleeve is provided on the inner wall of the jacket, an inner magnetic sleeve is provided on the floating rod, the inner magnetic sleeve and the outer magnetic sleeve are aligned, and the magnetic poles of the opposite surfaces of the two are opposite, and the brush is provided on the upper end of the floating rod.

2. The insulator with self-cleaning function according to claim 1, characterized in that: The upper and lower sides of the floating rod are respectively connected with an upper ring and a lower ring through a plurality of connecting rods, and the upper magnetic ring 1 and the lower magnetic ring 1 are respectively arranged on the lower surface of the upper ring and the upper surface of the lower ring.

3. The insulator with self-cleaning function according to claim 1, characterized in that: A U-shaped rod is arranged on the top of the screw rod seat, and the outer sleeve is arranged on the U-shaped rod.

4. An insulator with a self-cleaning function according to any one of claims 1 to 3, characterized in that: The driving mechanism comprises a passive gear sleeved on a rotating sleeve and a motor arranged on a support rod, the output shaft of the motor is connected with a driving gear, and the driving gear is meshed with the passive gear.

5. An insulator with a self-cleaning function according to any one of claims 1 to 3, characterized in that: The driving mechanism comprises fan blades arranged on the rotating sleeve.

6. An insulator with a self-cleaning function according to any one of claims 1 to 3, characterized in that: The support rod is provided with a mounting groove, and the rotating sleeve is arranged in the mounting groove. Two upper magnetic rings are arranged on the top of the mounting groove and the top of the rotating sleeve, and the two opposite end magnetic poles of the two upper magnetic rings are opposite. Two lower magnetic rings are arranged on the bottom of the mounting groove and the bottom of the rotating sleeve, and the two opposite end magnetic poles of the two lower magnetic rings are opposite. Two inner magnetic sleeves are arranged on the inner wall of the mounting groove, and two outer magnetic sleeves are arranged on the inner wall of the rotating sleeve. The opposite surface magnetic poles of the outer magnetic sleeve and the inner magnetic sleeve are opposite and aligned, so that the rotating sleeve is suspended in the mounting groove.

7. An insulator with a self-cleaning function according to any one of claims 1 to 3, characterized in that: The rotating sleeve and the support rod are connected via a bearing.

8. An insulator with a self-cleaning function according to any one of claims 1 to 3, characterized in that: The distance between any two adjacent annular grooves is the same, the width of the brush is greater than or equal to the distance between the two adjacent annular grooves, the distance that the brush moves radially along the insulating medium each time is equal to the distance between the two adjacent annular grooves, and when the brush rotates circumferentially along the insulating medium, the middle of the brush is aligned with the middle of the two adjacent annular grooves.

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