CN204793962U - Alternate conductor spacer spring damping device - Google Patents

Abstract

The utility model relates to an interphase spacer rod spring damping device, which is particularly suitable for use in overhead transmission lines of 35kV and above, and belongs to the technical field of overhead transmission line equipment in the electric power industry. It includes a spring barrel with an upper spring and a lower spring inside. The top of the spring barrel is provided with an upper connector for connecting the interphase spacer composite insulator. The upper spring and the lower spring are vertically arranged in the spring barrel. Cylinder I and half cylinder II, the bottom of the spring cylinder is provided with a passage hole for passing through the piston-type shaft, the piston-type shaft includes pistons at both ends of the shaft, and lower connectors for connecting line fittings. The piston is located in the spring barrel and between the upper spring and the lower spring, and the lower connecting piece is located outside the spring barrel. The utility model has the function of preventing rainwater, and can not only play the function of a compression spring but also play the function of a tension spring.

Description

A kind of interphase spacer spring damping device

technical field

The utility model relates to an interphase spacer rod spring damping device, which is particularly suitable for use in overhead transmission lines of 35kV and above, and belongs to the technical field of overhead transmission line equipment in the electric power industry.

Background technique

In the windy season, when the wind blows to the wires of the transmission line of the power system, a certain amount of power will be generated, which will induce a self-excited vibration of the wires and galloping. At this time, it is necessary to use a A spacer bar with insulation and mechanical strength, the spacer bar mechanically connects the wires, so that the movement of the wires is mutually restricted, so as to achieve the purpose of suppressing galloping.

At present, some anti-dancing devices and spacers have appeared on the market. For example, the patent name is: a damping type anti-dancing device, and the publication number is: 201781254U utility model patent, which discloses a damping type anti-dancing device. The utility model comprises a spacer bracket, a spring damping component and a columnar damping element connected to the spacer bracket, which can release twisting force when the wire dances, and effectively improve the tensile and compressive strength and elastic effect of the spacer bracket. This patent does not involve a sleeve-type spring shock absorber, but uses a spring. The disadvantage is that when the spring is pulled, the connection between the spring and other connecting parts is not firm, and it is prone to breakage under large-tonnage tension.

The name of the patent is: a rotary spring interphase spacer, and the publication number is: 202663062U utility model patent. The spacer of this patent is connected with the interphase insulator through a T-shaped veneer, and the spacer is equipped with a spring as an elastic structure for energy storage. , when the wires between two phases of the line gallop, through the continuous expansion and contraction of the spring, the sufficient conditions for galloping of the two-phase wires are destroyed, and the purpose of controlling the galloping of the wires is achieved. This patent does not involve a sleeve-type spring shock absorber, but uses a spring. The disadvantage is that when the spring is pulled, the connection between the spring and other connecting parts is not firm, and it is prone to breakage under large-tonnage tension.

The name of the patent is: A spring shock-absorbing interphase anti-galling spacer, and the publication number is: 103594997A utility model patent. Galloping self-excited oscillation energy, this patent does not involve the sleeve type spring shock absorber, but uses the spring, the disadvantage is that when the spring is pulled, the connection between the spring and other connecting parts is not firm, and it is easy to appear under the tension of large tonnage Fracture phenomenon.

The name of the patent is: a double-spring-end vibration-absorbing type interphase spacer, and the publication number is: 203760992U utility model patent. Absorb and reduce the self-excited oscillation energy on the line in a short time, minimize the galloping energy transmitted along the interphase spacer, and avoid further force bending of the line. The content of this patent does not further introduce the internal structure and working principle of the telescopic spring shock absorber. After a large number of Internet searches and patent inquiries, the applicant retrieved the relevant description of the telescopic spring shock absorber, so the telescopic spring The shock absorber is only a concept, and the specific structure of the sleeve type spring shock absorber is not disclosed in the prior art.

Contents of the invention

The purpose of the utility model is to solve the technical problem of the prior art that does not have the rainproof function, and the spring is not firmly connected with other connecting parts when it is pulled, and provides a rainproof function, which can not only play the function of the pressure spring but also can Interphase spacer bar spring damping device that functions as a tension spring.

The interphase spacer spring damping device of the utility model is realized through the following technical solutions:

An interphase spacer spring damping device, which is special in that it includes a spring cylinder 16 with an upper spring 4 and a lower spring 5 inside, and the top of the spring cylinder 16 is provided with an upper connector for connecting the composite insulator of the interphase spacer. The spring 4 and the lower spring 5 are vertically arranged in the spring barrel 16, the spring barrel 16 is composed of the half-cylinder body I2 and the half-cylinder body II3, and the bottom of the spring barrel 16 is provided with a passage hole for passing through the piston shaft 1 , the piston-type shaft 1 includes a piston 8 located at both ends of the shaft 9, a lower connector for connecting line hardware, the piston 8 is located in the spring barrel 16 and between the upper spring 4 and the lower spring 5, and the lower connector is located the outside of the spring barrel 16;

For the convenience of dismounting and the better function of stage clip and extension spring, one end of the upper spring 4 contacts the top inner wall of the spring barrel 16, the other end contacts the upper surface of the piston 8, and one end of the lower spring 5 contacts with the top inner wall of the spring barrel 16. The lower surface of the piston 8 is in contact, and the other end of the lower spring 5 is in contact with the bottom inner wall of the spring barrel 16;

In order to displace the piston shaft 1 along the axial direction, a cylindrical fixed shaft hole 15 is installed at the bottom of the spring barrel 16 through the hole, and the shaft 9 is inserted into the cylindrical fixed shaft hole 15;

In order to quickly connect with the interphase spacer composite insulator, the upper connector includes a groove-shaped flat foot 12 that is arranged on the top of the half-cylinder I2 and half-cylinder II3 and is integrated with the two. The groove-shaped flat foot 12 There are two screw holes I13 for screwing bolts, and the spring barrel 16 is connected with the interphase spacer composite insulator through bolts;

In order to quickly connect with the line fittings, the lower connector includes a flat connecting foot 10 integrally structured with the shaft 9, and the flat connecting foot 10 is provided with screw holes II11 for connecting bolts;

The rod length of the shaft rod 9 located outside the spring barrel 16 is greater than the compression amount of the upper spring 4 or the lower spring 5;

In order to quickly connect the half-cylinder body I2 and the half-cylinder body II3 into one body, both sides of the half-cylinder body I2 and half-cylinder body II3 in the height direction are provided with connecting plates 17 extending outward, and the connecting plates 17 are provided with There are a plurality of screw holes II14 for passing through the fastening bolts 6;

In order to prevent water from entering the spring barrel 16 , a rubber sealing washer 7 is installed at the bottom of the spring barrel 16 .

The interphase spacer spring damping device of the utility model has an ingenious structural design. It is installed at one or both ends of the interphase spacer during use. During the dancing process of the wire, when the interphase spacer is pulled, the lower spring will be compressed, and the upper spring will be compressed. No work; when the interphase spacer is under pressure, the upper spring will be compressed, but the lower spring will not work, so no matter whether the interphase spacer is under tension or compression, the interphase spacer spring damping device of the utility model always consumes the energy generated by the line galloping , so as to reduce the galloping range of the line and play an anti-galling effect. Through the perfect combination of the elastic deformation of the upper spring and the lower spring, a new balance is automatically achieved. The double function of the spring and the extension spring avoids the defect that the spring is not firmly connected with other connectors when the spring is under tension, and has a good application prospect in the technical field of overhead transmission line equipment in the power industry.

Description of drawings

Figure 1: Schematic diagram of the structure of the utility model interphase spacer spring damping device;

Figure 2: Schematic diagram of the structure of the piston shaft;

Figure 3: Schematic diagram of the structure of half cylinder I and half cylinder II;

Figure 4: Schematic diagram of the structure of the upper spring and the lower spring.

In the figure: 1. Piston-type shaft rod, 2. Half cylinder body I, 3. Half cylinder body II, 4. Upper spring, 5. Lower spring, 6. Fastening bolt, 7. Rubber sealing washer, 8. Piston, 9. Shaft rod, 10. Flat connecting foot, 11. Screw hole Ⅱ, 12. Slotted flat foot, 13. Screw hole Ⅰ, 14. Screw hole Ⅱ, 15. Cylindrical fixed shaft hole, 16. Spring barrel, 17. Connecting board.

Detailed ways

Provide the specific embodiment of the utility model below in conjunction with accompanying drawing, be used for further explanation to the utility model.

Embodiment 1: Refer to Fig. 1-4. The interphase spacer spring damping device includes a piston-type shaft rod 1 with a flat connecting foot 10 at the bottom, a semi-cylindrical body I2 and a semi-cylindrical body II3 with a groove-shaped flat foot 12 on the symmetrical top, an upper spring 4, Lower spring 5, some fastening bolts 6 and rubber sealing gasket 7 etc. Among them, the half-cylinder I2 and half-cylinder II3 are located at the top, and the piston shaft 1 is located at the bottom to avoid corrosion of the upper spring 4 and the lower spring 5 due to water ingress. The piston shaft 1 is composed of a piston 8, a cylindrical shaft 9, a flat Connecting foot 10, screw hole Ⅱ 11, half cylinder Ⅰ 2 and half cylinder Ⅱ 3 are composed of groove flat foot 12, screw hole Ⅰ 13, screw hole Ⅱ 14 and small semi-cylindrical fixed shaft hole 15, small semi-cylindrical fixed shaft hole 15 Ensure that the piston-type shaft 1 with flat feet is displaced in the axial direction, and the length of the shaft 9 located outside the spring barrel 16 is greater than the compression of the upper spring 4 or lower spring 5, in order to facilitate disassembly and achieve a better pressure spring , extension spring function, one end of the upper spring 4 is in contact with the top inner wall of the spring barrel 16, the other end is in contact with the upper surface of the piston 8, one end of the lower spring 5 is in contact with the lower surface of the piston 8, and the other end of the lower spring 5 is in contact with the lower surface of the piston 8. One end is in contact with the bottom inner wall of the spring barrel 16; in order to quickly connect with the interphase spacer composite insulator, the upper connecting piece includes a groove-shaped flat on the top of the half-cylinder I2 and half-cylinder II3 and integrated with the two. Foot 12, groove-shaped flat foot 12 is provided with two screw holes I13 for screwing bolts, and the spring tube 16 is connected with the interphase spacer composite insulator through bolts; in order to quickly connect with line fittings, the lower connection The parts include a flat connecting foot 10 with an integral structure with the shaft rod 9, and the flat connecting foot 10 is provided with screw holes II11 for connecting bolts; in order to quickly connect the half-cylinder body I2 and the half-cylinder body II3 as a whole, Both sides of the semi-cylindrical body I2 and the semi-cylindrical body II3 in the height direction are provided with connecting plates 17 extending outward, and the connecting plates 17 are provided with a plurality of screw holes II14 for passing through the fastening bolts 6 .

When in use, first place the upper spring 4, the piston shaft 1 and the lower spring 5 in the spring barrel 16 respectively, then pad the rubber sealing gasket 7, and then use the symmetrical half cylinder II3 to fit the half cylinder I2 to form A sealed cylindrical cylinder. Finally, a number of fastening bolts 6 are used to fasten the symmetrical semi-cylindrical body I2 and semi-cylindrical body II3 into one body.

The device of the utility model is installed on one or both ends of the interphase spacer. During the dancing process of the wire, when the interphase spacer is pulled, the lower spring 5 will be compressed, while the upper spring 4 will not work; when the interphase spacer is pressed, The upper spring 4 will be compressed, and the lower spring 5 will not work. Therefore, no matter whether the interphase spacer is under tension or compression, the interphase spacer spring damping device of the present utility model will always consume the energy generated by the line gallop, thereby reducing the line gallop amplitude and playing a role The anti-dancing function, through the perfect combination of the elastic deformation of the upper spring and the lower spring, automatically reaches a new balance. It eliminates the defect that the spring is not firmly connected with other connecting parts when it is pulled.

The scope of protection of the utility model is not limited to the above embodiments. For example, the spring barrel with the inner spring can be cylindrical or square, and any interphase spacer rod spring damping device that is the same or equivalent to the technical solution of the utility model, All belong to the protection scope of the present utility model.

Claims (8)

1. an inter-phase spacer spring damping device, it is characterized in that comprising inside is placed with upper spring (4), the spring strut (16) of lower spring (5), the top of spring strut (16) is provided with the upper connector for connecting inter-phase spacer composite insulator, upper spring (4) and lower spring (5) vertical arrangement in spring strut (16), spring strut (16) is by half cylindrical shell I (2) connected, half cylindrical shell II (3) is formed, the bottom of spring strut (16) is provided with for the passing hole through piston type axostylus axostyle (1), piston type axostylus axostyle (1) comprises the piston (8) being located at axostylus axostyle (9) two ends, for the lower connector of connection line gold utensil, piston (8) is positioned at spring strut (16) and is between upper spring (4) and lower spring (5), lower connector is positioned at the outside of spring strut (16).

2. according to a kind of inter-phase spacer spring damping device according to claim 1, it is characterized in that one end of described upper spring (4) contacts with the top inner wall of spring strut (16), the other end contacts with the upper surface of piston (8), one end of lower spring (5) contacts with the lower surface of piston (8), and the other end of lower spring (5) contacts with the bottom interior wall of spring strut (16).

3., according to a kind of inter-phase spacer spring damping device according to claim 1, it is characterized in that the passing hole place, bottom of described spring strut (16) is provided with tubular fixed shaft hole (15), axostylus axostyle (9) is inserted in tubular fixed shaft hole (15).

4. according to a kind of inter-phase spacer spring damping device described in claim 1 or 2, it is characterized in that described upper connector comprise be located at half cylindrical shell I (2), half cylindrical shell II (3) top and with the flat pin of the two grooved be structure as a whole (12), the flat pin of grooved (12) offers two screws I (13) for the bolt that spins, by bolt, spring strut (16) and inter-phase spacer composite insulator are connected as one.

5. according to a kind of inter-phase spacer spring damping device described in claim 1 or 2, it is characterized in that described lower connector comprises the flat-shaped connecting pin (10) be structure as a whole with axostylus axostyle (9), flat-shaped connecting pin (10) is provided with the screw II (11) for connecting bolt.

6., according to a kind of inter-phase spacer spring damping device according to claim 1, it is characterized in that the decrement that the bar that described axostylus axostyle (9) is positioned at spring strut (16) outside is grown up in upper spring (4) or lower spring (5).

7. according to a kind of inter-phase spacer spring damping device described in claim 1 or 6, it is characterized in that the short transverse both sides of described half cylindrical shell I (2), half cylindrical shell II (3) are equipped with outward extending connecting plate (17), connecting plate (17) is provided with multiple for the screw II (14) through fastening bolt (6).

8., according to a kind of inter-phase spacer spring damping device according to claim 1, it is characterized in that rubber gasket (7) is installed in the bottom of described spring strut (16).