Alternating-current disc-shaped suspension porcelain insulator with high mechanical strength
By designing buffer components and reinforcement components in AC disc-shaped suspended porcelain insulators, the problems of fasteners loosening and aging caused by wind vibration are solved, and the mechanical strength and service life of the insulators are improved.
Patent Information
- Application Number
- CN202420779624.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-16
AI Technical Summary
AC disk-shaped suspended porcelain insulators are prone to wind vibration in high-strength winds, which leads to loosening and aging of fasteners at the connection, which in turn causes vibration, damage to the connection and the insulator itself, and reduces mechanical strength and service life.
An AC disc-shaped suspended porcelain insulator including porcelain pieces, steel caps, steel feet and spring pin seats is designed, and a buffer assembly and reinforcement assembly are used to increase the mechanical strength of the insulator. The buffer assembly includes sliding grooves, sliding blocks, springs, elastic gaskets, cable grooves, fixing hoops and bolts to absorb and disperse the vibration energy transmitted by the cable; the reinforcement assembly enhances the connection strength by providing equally spaced raised blocks at the connection between the porcelain piece and the steel cap.
Through the design of the buffer component, the vibration energy of the cable is effectively absorbed and dispersed, protecting the connection from damage, and reducing the impact of vibration on the insulator; the reinforcement component improves the connection strength between the porcelain piece and the steel cap, enhances the stability and durability of the overall structure, and extends the service life of the insulator.
Smart Images
Figure CN222672712U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of disc-shaped suspension insulators, in particular to an AC disc-shaped suspension porcelain insulator with high mechanical strength. Background Art
[0002] Disc suspension porcelain insulators are a special type of insulation control that can play an important role in overhead transmission lines. In the early years, porcelain bottle insulators were mostly used on electric poles, and gradually developed into high-voltage electric wire connection towers with many disc-shaped insulators hung on one end to increase the creepage distance. They are usually made of glass or ceramics and are called insulators.
[0003] When AC disc-shaped suspension porcelain insulators encounter strong winds, wind vibration will occur. This is due to the vibration caused by the wind directly acting on the insulator. Continuous wind vibration will cause the cable to be subjected to tensile force under the action of wind. This force is transmitted to the insulator through the connection. Long-term exposure to wind will cause the fasteners at the connection to loosen and age, and then vibrate under the action of wind. This vibration will not only damage the connection, but also cause damage to the insulator itself, especially at the connection position and stress concentration area. Long-term vibration accumulation will accelerate the aging process of the insulator, resulting in a reduction in its mechanical strength and service life.
[0004] Therefore, it is necessary to propose an AC disc-shaped suspension porcelain insulator with high mechanical strength to solve the above problems. Utility Model Content
[0005] The utility model aims to provide an AC disc-shaped suspension porcelain insulator with high mechanical strength to solve the above-mentioned problem that long-term exposure to wind will cause the fasteners at the connection to become loose and aged, and then generate vibration under the action of wind force, which will not only damage the connection but also cause damage to the insulator itself.
[0006] To achieve the above object, the utility model provides the following technical solutions: an AC disc-shaped suspension porcelain insulator with high mechanical strength, comprising a porcelain part, a steel cap, a steel foot and a spring pin seat, wherein a buffer component for buffering the connection with the cable is arranged on the top of the spring pin seat;
[0007] The buffer assembly includes a sliding groove, a sliding block, a spring, an elastic gasket, a cable groove, a fixing hoop and a bolt. The sliding groove is opened on the surface of the spring pin seat, the sliding block is slidably set in the sliding groove, the sliding block is slidably connected to the inner wall of the sliding groove, the spring is set on the inner wall of the sliding groove, one end of the spring is fixed to the sliding block, the elastic gasket is set between the porcelain part and the steel cap, the cable groove is opened on the surface of the sliding block, the fixing hoop is set on the surface of the sliding block, and the fixing hoop is fixed with bolts.
[0008] Preferably, the porcelain piece is provided with a reinforcement component for strengthening the connection strength with the steel cap, and the reinforcement component includes a protrusion block and a groove, the protrusion blocks are equidistantly arranged on the surface of the porcelain piece, and the groove is opened on the surface of the protrusion block.
[0009] Preferably, the sliding block is arranged in a T shape.
[0010] Preferably, the protruding blocks are square in shape and are arranged vertically.
[0011] Preferably, the bottom of the steel foot is arranged in an arc shape.
[0012] Preferably, the inner walls of the cable groove and the fixing hoop are both provided with wear-resistant sheets.
[0013] Technical effects and advantages of the utility model:
[0014] 1. The buffer assembly of the utility model is that when the cable is shaken by wind or other external forces, the sliding block can flexibly move left and right to reduce the friction between the cable and the insulator. The slider can effectively absorb and disperse the vibration energy transmitted by the cable to protect the connection from damage. At the same time, the springs on both sides of the slider play a further buffering and vibration reduction role, elastically resisting the shaking of the cable, reducing the direct impact of vibration on the insulator, and ensuring the close connection between the insulator and the cable by applying appropriate pre-tightening force, effectively limiting the shaking amplitude of the insulator when the cable shakes;
[0015] 2. The reinforcement component of the utility model is provided with equidistant raised blocks at the connection between the porcelain part and the steel cap, so that the connection can be made more firmly when pouring cement, thereby improving the stability and durability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the AC disc-shaped suspension porcelain insulator with high mechanical strength of the utility model;
[0017] Figure 2 This is a schematic diagram of the porcelain part, steel foot and sliding block of the utility model;
[0018] Figure 3 This is a schematic diagram of the porcelain part, steel foot and steel cap of the utility model;
[0019] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;
[0020] Figure 5 This is a schematic diagram of the porcelain part, steel cap, raised block and groove of the utility model;
[0021] Figure 6It is a schematic diagram of the steel cap, porcelain piece, elastic gasket and cement filler of the utility model.
[0022] In the figure: 1. Porcelain part; 2. Steel cap; 3. Steel foot; 4. Spring pin seat; 5. Buffer assembly; 501. Sliding groove; 502. Sliding block; 503. Spring; 504. Elastic gasket; 505. Cable groove; 506. Fixing hoop; 507. Bolt; 6. Reinforcement assembly; 601. Raised block; 602. Groove; 7. Wear-resistant sheet; 8. Cement filler. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The utility model provides Figure 1 - Figure 6 An AC disc-shaped suspension porcelain insulator with high mechanical strength shown in the figure includes a porcelain part 1, a steel cap 2, a steel leg 3 and a spring pin seat 4. The porcelain part 1 is the main part of the insulator, which is usually made of electrical ceramics or tempered glass and has excellent insulation performance. The steel cap 2 and the steel leg 3 constitute the connecting hardware. The spring pin seat 4 is an important component in the insulator structure. In the disc-shaped suspension insulator, the spring pin seat 4 is usually used to connect the various parts of the insulator to ensure that it can maintain a stable connection state under various environmental conditions. When installing the disc-shaped suspension insulator, the cable is placed on the spring pin seat 4.
[0025] A buffer component 5 for buffering the cable connection is provided on the top of the spring pin seat 4. When the cable is shaken by wind or other external forces, the sliding block 502 can flexibly move left and right to reduce the friction at the connection between the cable and the insulator. The slider can effectively absorb and disperse the vibration energy transmitted by the cable to protect the connection from damage. At the same time, the springs 503 on both sides of the sliding block 502 play a further buffering and vibration reduction role, elastically resisting the shaking of the cable, reducing the direct impact of vibration on the insulator, and ensuring the close connection between the insulator and the cable by applying appropriate pre-tightening force, effectively limiting the shaking amplitude of the insulator when the cable shakes.
[0026] The buffer assembly 5 includes a sliding groove 501, a sliding block 502, a spring 503, an elastic gasket 504, a cable groove 505, a fixing hoop 506 and a bolt 507. The sliding groove 501 is opened on the surface of the spring pin seat 4, and the sliding block 502 is slidably set in the sliding groove 501. The sliding block 502 is slidably connected to the inner wall of the sliding groove 501. The sliding block 502 is set in a T shape, wherein the bottom is shorter than the top. Such a structure allows the bottom to have a larger sliding range in the sliding groove 501, thereby improving the stability and sliding efficiency of the sliding block 502.
[0027] The spring 503 is arranged on the inner wall of the sliding groove 501, one end of the spring 503 is fixed to the sliding block 502, and the elastic gasket 504 is arranged between the porcelain part 1 and the steel cap 2. The elastic gasket 504 is added between the porcelain part 1 and the steel cap 2. These elastic gaskets 504 are usually made of rubber or other elastic materials, which can absorb vibration and impact and reduce the impact of wind vibration on the connection. At the same time, the elastic gasket 504 can also play a buffering role and reduce the damage to the connection caused by thermal expansion and contraction due to temperature changes.
[0028] The cable groove 505 is opened on the surface of the sliding block 502, and the fixing hoop 506 is set on the surface of the sliding block 502. The fixing hoop 506 is fixed by bolts 507. When installing the disc-shaped suspension insulator, the cable should be placed in the cable groove 505 first, and then the fixing hoop 506 is used to tightly clamp the cable, and then the bolt 507 is tightened to fix it. In this way, when the cable is shaken by wind or other external forces, the sliding block 502 can move freely left and right in the sliding groove 501. When the sliding block 502 moves, it will compress the spring 503, and the compression and reset process of the spring 503 can effectively reduce the impact and friction on the sliding block 502, thereby improving its service life and stability.
[0029] The inner walls of the cable groove 505 and the fixing hoop 506 are both provided with wear-resistant sheets 7, which can effectively resist the wear of the cable or the fixing hoop 506 during long-term use, extend the service life, and ensure the stable fixation of the cable.
[0030] A reinforcement component 6 is provided on the porcelain part 1 for strengthening the connection strength with the steel cap 2, thereby enhancing the connection strength between the porcelain part 1 and the steel cap 2. When the porcelain part 1 and the steel cap 2 are connected using cement filler 8, the reinforcement component 6 plays a key reinforcement role, thereby optimizing the connection relationship between the two.
[0031] The reinforcement component 6 includes a protrusion 601 and a groove 602. The protrusion 601 is equidistantly arranged on the surface of the porcelain part 1, and the groove 602 is opened on the surface of the protrusion 601, so that when cement is poured to connect the porcelain part 1 and the steel cap 2, the cement can penetrate into the groove 602 and tightly combine with the protrusion 601, thereby greatly enhancing the connection firmness between the porcelain part 1 and the steel cap 2.
[0032] The protruding block 601 is square in shape and is arranged vertically, which can effectively resist the horizontal force when the cement is poured, thereby improving the connection stability between the porcelain part 1 and the steel cap 2.
[0033] The bottom of the steel foot 3 is arranged in an arc shape, which helps to enhance the stability of the bottom of the steel foot 3 , while reducing the contact stress between the steel foot 3 and the foundation surface, thereby improving the bearing capacity of the steel foot 3 .
Claims
1. An AC disc-shaped suspension porcelain insulator with high mechanical strength, comprising a porcelain part (1), a steel cap (2), a steel foot (3) and a spring pin seat (4), characterized in that: A buffer component (5) for buffering the connection with the cable is arranged on the top of the spring pin seat (4); The buffer assembly (5) comprises a sliding groove (501), a sliding block (502), a spring (503), an elastic gasket (504), a cable groove (505), a fixing hoop (506) and a bolt (507); the sliding groove (501) is provided on the surface of the spring pin seat (4); the sliding block (502) is slidably arranged in the sliding groove (501); the sliding block (502) is slidably connected to the inner wall of the sliding groove (501); the spring (503) is arranged on the inner wall of the sliding groove (501); one end of the spring (503) is fixed to the sliding block (502); the elastic gasket (504) is arranged between the porcelain part (1) and the steel cap (2); the cable groove (505) is provided on the surface of the sliding block (502); the fixing hoop (506) is arranged on the surface of the sliding block (502); the fixing hoop (506) is fixed by a bolt (507).
2. The AC disc-shaped suspension porcelain insulator with high mechanical strength according to claim 1, characterized in that: The porcelain part (1) is provided with a reinforcing component (6) for reinforcing the connection strength with the steel cap (2), the reinforcing component (6) comprising a protruding block (601) and a groove (602), the protruding blocks (601) are arranged at equal intervals on the surface of the porcelain part (1), and the groove (602) is opened on the surface of the protruding block (601).
3. The AC disc-shaped suspension porcelain insulator with high mechanical strength according to claim 1, characterized in that: The sliding block (502) is arranged in a T shape.
4. The AC disc-shaped suspension porcelain insulator with high mechanical strength according to claim 2, characterized in that: The protruding block (601) is square in shape and is arranged vertically.
5. The AC disc-shaped suspension porcelain insulator with high mechanical strength according to claim 1, characterized in that: The bottom of the steel foot (3) is arranged in an arc shape.
6. The AC disc-shaped suspension porcelain insulator with high mechanical strength according to claim 1, characterized in that: The inner walls of the cable groove (505) and the fixing hoop (506) are both provided with wear-resistant sheets (7).