CN212991935U

CN212991935U - Lightning arrester for power transmission line

Info

Publication number: CN212991935U
Application number: CN202021619200.2U
Authority: CN
Inventors: 姜立岳; 王茂忠; 毕启亮
Original assignee: Shandong Hongdian Engineering Consulting Co ltd
Current assignee: Shandong Hongdian Engineering Consulting Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-04-16
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a lightning arrester of a power transmission line, which comprises a mounting plate, wherein two symmetrical T-shaped grooves are arranged at the central position of the bottom end surface of the mounting plate, two groups of T-shaped grooves are transversely provided with lead screws at the central position of the inner wall of the T-shaped grooves, two groups of T-shaped sliders are sleeved on the lead screws in a threaded manner and are respectively arranged in the two groups of T-shaped grooves in a sliding manner, the tops of the two groups of T-shaped sliders are welded with hoops, a power transmission rod is arranged at the central position of the bottom end surface of the mounting plate, a first ear plate is welded at one side of the top end surface of the mounting plate, a limiting ring is welded at the other side of the top end surface of the mounting plate, a first rotating shaft is inserted at the top end of the first ear plate in a rotating manner, a lightning arrester is inserted at the top end thread of the first rotating, reduce the bolt that the arrester caused because of vibrations not hard up, promoted stability.

Description

Lightning arrester for power transmission line

Technical Field

The utility model belongs to the technical field of transmission line lightning protection, concretely relates to transmission line lightning arrester.

Background

The transmission line is realized by using a transformer to boost the electric energy generated by the generator and then connecting the electric energy to the transmission line through control equipment such as a breaker and the like. The structure form, transmission line divide into overhead transmission line and cable run. Lightning is the leading cause of grid faults. The power grid in China is struck by lightning for more than 35 ten thousand times every year, the lightning trip number of a power transmission system accounts for more than 50% of the total trip number, and the safe operation of the power grid is seriously threatened. The lightning arrester is one of the most effective means for realizing full-span lightning protection, and is applied to the existing operating power transmission lines with various voltage grades.

Because the types and the sizes of the power transmission poles are different, most of the existing lightning protection devices are fixed by bolts, but the cement power transmission poles are not easy to fix by the bolts, so that the applicability is poor; meanwhile, when the existing lightning arrester is used, the lightning conductor can swing under the action of wind force, and the lightning arrester is driven to vibrate, so that the lightning arrester is loosened and poor in stability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transmission line lightning arrester to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a lightning arrester of a power transmission line comprises a mounting plate, wherein T-shaped grooves are formed in two symmetrical sides of the center of the bottom end face of the mounting plate, lead screws are transversely arranged at the center of the inner walls of two groups of T-shaped grooves, T-shaped sliding blocks are sleeved on the two groups of lead screws in a threaded manner, the two groups of T-shaped sliding blocks are arranged in the two groups of T-shaped grooves in a sliding manner respectively, anchor ears are welded at the top ends of the two groups of T-shaped sliding blocks, and a power transmission rod is arranged at the center of the bottom end face of the mounting plate;

the lightning arrester is characterized in that a first lug plate is welded on one side of the top end face of the mounting plate, a limiting ring is welded on the other side of the top end face of the mounting plate, a first rotating shaft is inserted into the top end of the first lug plate in a rotating mode, a lightning arrester is inserted into the top end of the first rotating shaft in a threaded mode, and an insulating terminal is arranged in the limiting ring through a fixing mechanism.

Preferably, two sets of the one end of lead screw is inserted respectively in the inner wall in two sets of T type grooves to rotate with the mounting panel through the bearing and be connected, wherein two sets of the knob is all welded to the other end of lead screw.

Preferably, the two groups of hoops are symmetrically arranged on two sides of the mounting plate in a circular arc shape, and rubber pads are bonded on the inner walls of the two groups of hoops on the opposite sides.

Preferably, the fixing mechanism comprises a second lug plate fixedly welded on the mounting plate and a second rotating shaft rotatably inserted at the top end of the second lug plate, and the bottom end of the insulating terminal is inserted in the center of the second rotating shaft in a threaded manner.

Preferably, a fixed block is inserted into the top end of the insulating terminal in a vertical threaded manner, a fixed ring is welded on the top end face of the fixed block in a transverse manner, a lightning conductor is inserted into the fixed ring in a sliding manner, and one end, far away from the insulating terminal, of the lightning conductor is fixed to the bottom end of the lightning arrester.

Preferably, the one end that insulated terminal was kept away from to the lightning conductor passes the arrester top, be provided with fixing bolt on the arrester, fixing bolt's bottom screw thread passes the arrester and is fixed with the lightning conductor butt.

The utility model discloses a technological effect and advantage: according to the lightning arrester for the power transmission line, the lead screws are rotatably arranged in the T-shaped grooves symmetrically formed in the two sides of the center of the bottom end face of the mounting plate, the T-shaped sliding blocks are sleeved on the two groups of lead screws in a threaded manner, the top end faces of the T-shaped sliding blocks are welded with the hoops, the hoops can be moved to fix the mounting plate on the power transmission rods by rotating the lead screws, meanwhile, the lightning arrester can be suitable for the power transmission rods with different sizes, and the applicability is; the first otic placode top of top face one side welded through the mounting panel is rotated and is pegged graft and have first pivot, the top screw thread of first pivot is pegged graft and is had the arrester, the top face opposite side of mounting panel is provided with insulating terminal through fixed establishment, the equal fixed connection in top of insulating terminal and arrester is on the lightning conductor, during the lightning conductor swing, insulating terminal and arrester pass through second pivot and first pivot synchronous oscillation, can effectively slow down the amplitude of oscillation of lightning conductor, it is not hard up because of the bolt that vibrations caused to reduce the arrester simultaneously, stability has been promoted.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the mounting plate structure of the present invention;

FIG. 3 is a cross-sectional view of the stop collar of the present invention;

fig. 4 is a schematic structural view of the fixing ring of the present invention.

In the figure: 1. a power transmission pole; 2. hooping; 3. mounting a plate; 4. a knob; 5. a limiting ring; 6. a fixed block; 7. an insulated terminal; 8. a lightning conductor; 9. fixing the bolt; 10. a lightning arrester; 11. a first lug plate, 12 and a T-shaped groove; 13. a rubber pad; 14. a second rotating shaft; 15. a second ear panel; 16. a first rotating shaft; 17. a fixing ring; 18. and a lead screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a lightning arrester of transmission line as shown in figures 1-4, which comprises a mounting plate 3, wherein T-shaped grooves are arranged at the symmetrical two sides of the central position of the bottom end surface of the mounting plate 3, lead screws 18 are transversely arranged at the central positions of the inner walls of two groups of T-shaped grooves, T-shaped sliders are sleeved on the lead screws 18 in a threaded manner, the T-shaped sliders are arranged in the two groups of T-shaped grooves in a sliding manner, and hoops 2 are welded at the top ends of the T-shaped sliders, wherein a power transmission rod 1 is arranged at the central position of the bottom end surface of the mounting plate 3;

the lightning arrester is characterized in that a first lug plate 11 is welded on one side of the top end face of the mounting plate 3, a limiting ring 5 is welded on the other side of the top end face of the mounting plate 3, a first rotating shaft 16 is inserted on the top end of the first lug plate 11 in a rotating mode, a lightning arrester 10 is inserted on the top end of the first rotating shaft 16 in a threaded mode, and an insulating terminal 7 is arranged in the limiting ring 5 through a fixing mechanism.

Specifically, two sets of the one end of lead screw 18 inserts respectively in the inner wall in two sets of T type grooves to rotate with mounting panel 3 through the bearing and be connected, wherein two sets of knob 4 has all been welded to the other end of lead screw 18.

Specifically, it is two sets of staple bolt 2 all is circular-arc symmetry setting in mounting panel 3 both sides, and two sets of staple bolt 2 one side inner wall in opposite directions all bonds and have rubber pad 13, and rubber pad 13 can promote frictional force and make staple bolt 2 stably fix on transmission of electricity pole 1, can increase nut and gasket on lead screw 18 and promote the stability of staple bolt 2.

Specifically, the fixing mechanism comprises a second lug plate 15 fixedly welded on the mounting plate 3 and a second rotating shaft 14 rotatably inserted at the top end of the second lug plate 15, and the bottom end of the insulating terminal 7 is screwed and inserted at the central position of the second rotating shaft 14.

Specifically, a fixed block 6 is inserted into the top end of the insulating terminal 7 in a vertical threaded manner, a fixed ring 17 is welded on the top end face of the fixed block 6 in a transverse manner, a lightning conductor 8 is inserted into the fixed ring 17 in a sliding manner, and one end, far away from the insulating terminal 7, of the lightning conductor 8 is fixed to the bottom end of the lightning arrester 10.

Specifically, the end of the lightning conductor 8 far away from the insulated terminal 7 passes through the top end of the lightning arrester 10, the lightning arrester 10 is provided with a fixing bolt 9, the bottom end thread of the fixing bolt 9 passes through the lightning arrester 10 to be abutted and fixed with the lightning conductor 8, and the preferred YH5WZ type lightning arrester is the lightning arrester 10.

Working principle, this transmission line lightning arrester, when using, whether the device has the damaged or not firm condition of connection of part earlier to check, install after the inspection is errorless, place mounting panel 3 on the bottom face of transmission pole 1 during the installation, it drives two sets of lead screws 18 rotations to rotate two sets of knobs 4 respectively, thereby drive T type slider and staple bolt 2 and remove, make rubber pad 13 on staple bolt 2 fix the butt on the outer wall of transmission pole 1, peg graft the bottom screw thread of arrester 10 on first pivot 16, peg graft the bottom screw thread of insulating terminal 7 on second pivot 14, after the top of insulating terminal 7 is twisted to fixed block 6, pass solid fixed ring 17 and arrester 10 top on fixed block 6 respectively with lightning rod 8, and it can to tighten fixing bolt 9 and fix lightning rod 8, insulating terminal 7 and arrester 10 follow line 8 synchronous oscillation through second pivot 14 and first pivot 16 (spacing ring 5 welded on mounting panel 3 can restrict insulating terminal 7 and lightning rod 8 (the last limit of insulating terminal 7 of welding of mounting panel 3) Swing amplitude) this transmission line lightning arrester, applicable in not unidimensional transmission of electricity pole, promoted the suitability, it is not hard up because of the bolt that vibrations caused to reduce the arrester, has promoted stability.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a transmission line lightning arrester, includes mounting panel (3), its characterized in that: t-shaped grooves are formed in the two symmetrical sides of the center of the bottom end face of the mounting plate (3), lead screws (18) are transversely arranged at the centers of the inner walls of the two groups of T-shaped grooves, T-shaped sliding blocks are sleeved on the two groups of lead screws (18) in a threaded manner, the two groups of T-shaped sliding blocks are arranged in the two groups of T-shaped grooves in a sliding manner respectively, anchor ears (2) are welded at the top ends of the two groups of T-shaped sliding blocks, and a power transmission rod (1) is arranged at the center of the bottom end face of the mounting plate (3);

the lightning arrester is characterized in that a first lug plate (11) is welded on one side of the top end face of the mounting plate (3), a limiting ring (5) is welded on the other side of the top end face of the mounting plate (3), a first rotating shaft (16) is connected in a rotating mode on the top end of the first lug plate (11), a lightning arrester (10) is connected in a threaded mode on the top end of the first rotating shaft (16), and an insulating terminal (7) is arranged in the limiting ring (5) through a fixing mechanism.

2. The lightning arrester of the power transmission line according to claim 1, characterized in that: and one ends of the two groups of lead screws (18) are respectively inserted into the inner walls of the two groups of T-shaped grooves and are rotatably connected with the mounting plate (3) through bearings, and the other ends of the two groups of lead screws (18) are welded with knobs (4).

3. The lightning arrester of the power transmission line according to claim 1, characterized in that: two sets of staple bolts (2) all are circular-arc symmetry and set up in mounting panel (3) both sides, and two sets of staple bolts (2) one side inner wall in opposite directions all bonds and has rubber pad (13).

4. The lightning arrester of the power transmission line according to claim 1, characterized in that: the fixing mechanism comprises a second lug plate (15) fixedly welded on the mounting plate (3) and a second rotating shaft (14) rotatably connected with the top end of the second lug plate (15) in an inserting mode, and the bottom end of the insulating terminal (7) is connected with the center of the second rotating shaft (14) in a threaded inserting mode.

5. The lightning arrester of the power transmission line according to claim 1, characterized in that: the lightning arrester is characterized in that a fixed block (6) is inserted into the top end of the insulating terminal (7) in a vertical threaded manner, a fixed ring (17) is welded on the top end face of the fixed block (6) in a transverse manner, a lightning conductor (8) is inserted into the fixed ring (17) in a sliding manner, and one end, far away from the insulating terminal (7), of the lightning conductor (8) is fixed to the bottom end of the lightning arrester (10).

6. The lightning arrester of claim 5, characterized in that: one end of the lightning conductor (8) far away from the insulating terminal (7) penetrates through the top end of the lightning arrester (10), a fixing bolt (9) is arranged on the lightning arrester (10), and the bottom end thread of the fixing bolt (9) penetrates through the lightning arrester (10) to be fixedly connected with the lightning conductor (8) in an abutting mode.