CN112271679A

CN112271679A - Novel prevent wind weight bias hammer piece and prevent wind weight bias hammer device

Info

Publication number: CN112271679A
Application number: CN202011352314.XA
Authority: CN
Inventors: 朱赛伟; 王刚; 姚邵川; 原玮; 李南开; 杨昊坤; 赵天浩
Original assignee: Henan Power Transmission and Transformation Construction Co Ltd; State Grid Corp of China SGCC
Current assignee: Henan Power Transmission and Transformation Construction Co Ltd; State Grid Corp of China SGCC
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-01-26
Anticipated expiration: 2040-11-26
Also published as: CN112271679B

Abstract

The invention discloses a new type of windproof eccentric weighted hammer, comprising a T-shaped heavy hammer body, the heavy hammer body is divided into a horizontal part and a vertical part, and the horizontal part is divided into a first half and a second half with the vertical part as the boundary Two halves, wherein the horizontal length of the first half is greater than the second half, so that the center of gravity of the heavy hammer body is set against the first half; the center of gravity of the heavy hammer body is far away from the tower body during installation; The centerline of the vertical part is provided with a lower end fixing hole, and the horizontal part is provided with an upper end fixing hole corresponding to the lower end fixing hole; wherein, the lower end fixing hole is a circular hole, and the upper end fixing hole is an arc-shaped length with the lower end fixing hole as the center of the circle. A hole; the weight piece body is provided with a weight piece body stacking structure at the first half or the second half part, and the weight piece body stacking structure forms an energy-consuming connection mechanism. The invention can effectively prevent wind deflection and flashover, and can quickly absorb and consume the wind energy acting on the wire through the energy-consuming connection mechanism between the heavy hammer pieces.

Description

Novel prevent wind weight bias hammer piece and prevent wind weight bias hammer device

Technical Field

The invention relates to the technical field of operation and maintenance of power transmission lines, in particular to a novel wind-proof weight-biasing hammer sheet and a wind-proof weight-biasing hammer device.

Background

Under the action of strong wind, the wind of the wire is over-biased to the tower body, and the tower body is discharged under the conditions that rainstorm reduces air insulation and lightning activity generates induced voltage on the wire, so that the circuit is tripped to be called wind-biased flashover. In recent years, flashovers frequently occur due to windage yaw, and the situation is high. In order to build a stronger power grid, the optimization research of windage yaw prevention of the power transmission line tower is urgent.

The solutions adopted in the prior art are generally divided into three categories:

1. and a windproof insulating inhaul cable is additionally arranged. This solution has the following drawbacks: and the line hardware is easy to be damaged by fatigue after being stressed for a long time. Therefore, the additional installation of the windproof insulating zipper has potential safety hazard on the operation of the line.

2. A novel windage yaw prevention insulator is used. The windage yaw prevention insulator mainly depends on the action of bending moment generated by the root of the insulator to resist wind load, the stress is concentrated, and the long-time connection part is easy to generate fatigue failure.

3. And adding a heavy hammer. The weight piece is a more traditional and safe wind deflection prevention means, but the traditional weight piece has limited effect.

The patent publication also relates to an improvement of the wind-proof weight.

The invention discloses a high-voltage wire jumper wind-proof off-center hanging weight device with a notice number CN109347038B, and solves the technical problems that a hanging weight in the prior art is inconvenient to install, poor in stability and serious in potential safety hazard. The weight piece comprises a center rod and a weight piece assembly detachably connected to the periphery of the center rod, each weight piece comprises at least one weight piece assembly, and the weight piece assembly is connected with a detachable pulley assembly. The invention is convenient for transportation, installation and maintenance, can avoid point discharge, has small wind resistance and has the effect of reliably stabilizing the wire jumper. The cable also has the wind deflection prevention effect of the suspended weight stabilizing wire and the jumper wire, and the space safety distance of the live wire conductor to a tower, the stay wire and an adjacent object is ensured.

Notice No. CN 201829903U's utility model discloses a transmission line single clamp adds weight and prevents wind partially device, including the weight of rectangle structure, there is the drift hole on the well upper portion of its characterized in that weight, has the balancing hole in the both sides in drift hole, through two balancing holes and balancing stand fixed connection. The structure is simple, the installation is convenient, the construction cost is low, and the manufacturing cost is also low.

Notice No. CN 205304179U's utility model discloses a join in marriage net twine way self-adaptation and prevent wind weight device, including weight, at least one fixed pulley and at least one nonmetal stay wire of installing on the pole cross arm, nonmetal line one end sets up and is used for hanging the end with connecting wire's wire, and the other end passes through behind the fixed pulley to be connected with the weight, the barrel on the pole is established for the cover to the weight main part, and the barrel inner wall is equipped with the gyro wheel, makes the weight can freely slide on the pole surface, and the upward slip can put down the wire, and the downward slip can reset the wire. The device can guarantee the operation security of circuit when normal operating, loosens the wire through the weight slip when the typhoon surpasss the design operating mode, reduces the load effect of wire to the pole, and after the typhoon or wind speed reduction to design operating mode within range, the weight return resets the wire again, resumes normal operating condition.

The technical scheme is different from the technical scheme of the application.

Disclosure of Invention

The invention aims to provide a novel wind-proof weight biasing hammer sheet and a wind-proof weight biasing hammer device.

In order to solve the technical problems, the invention adopts the following technical scheme:

a novel wind-bias-preventing heavy hammer sheet comprises a T-shaped heavy hammer sheet body, wherein the heavy hammer sheet body is divided into a horizontal part and a vertical part, the horizontal part is divided into a first half part and a second half part by taking the vertical part as a boundary, the horizontal length of the first half part is greater than that of the second half part, and the gravity center of the heavy hammer sheet body is arranged close to the first half part; when the weight is installed, the gravity center of the heavy hammer sheet body is far away from the side of the tower body;

the heavy hammer sheet body is provided with a lower end fixing hole at the central line position of the vertical part, and an upper end fixing hole is arranged on the horizontal part corresponding to the lower end fixing hole; wherein, the lower end fixing hole is a round hole, and the upper end fixing hole is an arc-shaped long hole taking the lower end fixing hole as the center of a circle;

the heavy hammer sheet body is provided with a heavy hammer sheet body stacking structure at the first half part or the second half part, the heavy hammer sheet body stacking structure comprises a positioning bulge arranged at one side of the heavy hammer sheet body and a positioning groove oppositely arranged at the other side of the heavy hammer sheet body, and the diameter of the positioning groove is larger than that of the positioning bulge; when the heavy hammer sheet bodies are stacked, the positioning bulge of one heavy hammer sheet body is inserted into the positioning groove of the other heavy hammer sheet body adjacent to the positioning bulge, and the positioning bulge and the corresponding positioning groove are connected through the damping medium to form the energy-consuming connecting mechanism.

The damping medium is a spring group arranged around the positioning protrusion.

The positioning protrusion is cylindrical.

The positioning groove is circular.

The invention also discloses a wind-proof weight-bias hammer device, which comprises the novel wind-proof weight-bias hammer sheet and a connecting plate, wherein a lead passes through the reserved holes on the periphery of the connecting plate, the novel wind-proof weight-bias hammer sheet is symmetrically stacked on two sides of the connecting plate, a lower connecting rod passes through a lower end fixing hole, an upper connecting rod passes through an upper end fixing hole, and the novel wind-proof weight-bias hammer sheets on two sides of the connecting plate are kept on the connecting plate by the lower connecting rod and the upper connecting rod.

The invention has the beneficial effects that:

the novel wind-bias-preventing weight piece is different from the traditional weight piece and adopts an eccentric design. The center of gravity is far away from the side of the tower body, and a moment far away from the tower body is applied to the lead.

The weight piece is connected with the yoke plate by upper end and lower end fixing holes. Wherein, the lower end fixing hole is a round hole to form strong restraint, and the relative displacement between the heavy hammer sheets is not allowed; the upper end fixing hole is an arc-shaped long hole, weak restraint is formed, the weight pieces are allowed to shake left and right and have relative displacement, and therefore the purposes of absorbing wind energy and reducing windage yaw are achieved.

The wind deflection flashover prevention and control device can effectively prevent and control wind deflection flashover, and can quickly absorb and consume wind energy acting on the lead through the energy consumption connecting mechanism between the heavy hammer sheet bodies.

Drawings

FIG. 1 is a front view of a first embodiment of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;

fig. 3 is a side view of a second embodiment of the present invention.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1 to 2, the present embodiment discloses a novel wind-proof weight plate, which includes a T-shaped weight plate body, the weight plate body is divided into a horizontal portion and a vertical portion 13, the horizontal portion is divided into a first half portion 11 and a second half portion 12 by the vertical portion, wherein the horizontal length of the first half portion 11 is greater than that of the second half portion 12, so that the center of gravity of the weight plate body is close to the first half portion 11; the center of gravity of the heavy hammer sheet body is far away from the tower body side during installation.

The heavy hammer sheet body is provided with a lower end fixing hole 2 at the central line position of the vertical part, and an upper end fixing hole 3 is arranged on the horizontal part corresponding to the lower end fixing hole 2; wherein, the lower end fixing hole 2 is a round hole, and the upper end fixing hole 3 is an arc-shaped long hole with the lower end fixing hole 2 as the center of a circle.

The heavy hammer sheet body is provided with a heavy hammer sheet body stacking structure at the first half part 11, the heavy hammer sheet body stacking structure comprises a positioning bulge 4 arranged on one side of the heavy hammer sheet body and a positioning groove 5 oppositely arranged on the other side of the heavy hammer sheet body, and the diameter of the positioning groove 5 is larger than that of the positioning bulge 4; when the heavy hammer sheet bodies are stacked, the positioning bulge 4 of one heavy hammer sheet body is inserted into the positioning groove 5 of the other heavy hammer sheet body adjacent to the positioning bulge 4, and the positioning bulge 4 and the corresponding positioning groove 5 are connected through the damping medium 6 to form the energy-consuming connecting mechanism.

In this embodiment, the damping medium 6 is a spring pack arranged around the positioning protrusion.

In this embodiment, the positioning protrusion 4 is cylindrical, and the positioning groove 5 is circular.

Example two:

as shown in fig. 3, the embodiment discloses a wind-proof unbalanced weight hammer device, which includes the novel wind-proof unbalanced weight hammer 1 of the first embodiment, and further includes a connecting plate 7, a wire is passed through the preformed holes around the connecting plate 7, the two sides of the connecting plate 7 are symmetrically stacked on the novel wind-proof unbalanced weight hammer 1, a lower connecting rod 8 is passed through the lower end fixing hole 2, and an upper connecting rod 9 is passed through the upper end fixing hole 3, and the lower connecting rod 8 and the upper connecting rod 9 keep the novel wind-proof unbalanced weight hammer 1 on the two sides of the connecting plate 7 on the connecting plate 7.

The novel wind-bias-preventing weight piece disclosed by the invention is different from the traditional weight piece and adopts an eccentric design. The center of gravity is far away from the side of the tower body, and a moment far away from the tower body is applied to the lead.

The weight piece is connected with the yoke plate by upper end and lower end fixing holes. Wherein, the lower end fixing hole 2 is a round hole to form strong restraint and not allow relative displacement between the heavy hammer sheets; the upper end fixing hole 3 is an arc-shaped long hole, weak restraint is formed, the weight pieces are allowed to swing left and right and have relative displacement, and therefore the purposes of absorbing wind energy and reducing windage yaw are achieved.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.

Claims

1. a new type of wind-proof eccentric weight hammer is characterized in that: comprise a heavy hammer body in a T shape, the heavy hammer body is divided into a horizontal part and a vertical part, and the horizontal part is divided into the first half with the vertical part as a boundary and the second half, wherein the horizontal length of the first half is greater than that of the second half, so that the center of gravity of the heavy hammer body is set against the first half; the center of gravity of the heavy hammer body is far from the side of the tower body during installation;

The weight piece body is provided with a lower end fixing hole at the midline position of the vertical part, and an upper end fixing hole is arranged on the horizontal part corresponding to the lower end fixing hole; wherein, the lower end fixing hole is a round hole, and the upper end fixing hole is the lower end fixing hole. Arc-shaped long hole in the center of the circle;

The weight piece body is provided with a weight piece stacking structure at the first half or the second half. The positioning grooves on the other side of the sheet body are oppositely arranged, and the diameter of the positioning grooves is larger than that of the positioning protrusions; when the heavy hammer pieces are stacked, the positioning protrusion of one heavy hammer body is inserted into another adjacent heavy hammer. In the positioning groove of the sheet body, the positioning protrusion and the corresponding positioning groove are connected by a damping medium to form an energy-consuming connection mechanism.

2 . The new type of windproof eccentric weighted hammer according to claim 1 , wherein the damping medium is a spring group arranged around the positioning protrusion. 3 .

3 . The new type of windproof and eccentric weight hammer according to claim 1 or 2 , wherein the positioning protrusion is cylindrical. 4 .

4 . The new type of windproof and eccentric weight hammer according to claim 1 or 2 , wherein the positioning groove is circular. 5 .

5. A windproof eccentric weight hammer device is characterized in that: it comprises the novel windproof eccentric weight hammer according to any one of claims 1-4, and also includes a connecting plate, the wire is passed through the reserved holes around the connecting plate, and the connecting plate is passed through. The new windproof and weighted hammers are symmetrically stacked on both sides, and the lower connecting rod passes through the fixing hole at the lower end and the upper connecting rod passes through the fixing hole at the upper end, and the lower connecting rod and the upper connecting rod connect the connecting plate The new windproof weighted hammers on both sides are kept on the coupling plate.