CN204167855U - A kind of lightning conducter side needle device of anti-aeolian vibration - Google Patents

Abstract

The utility model relates to Lightning Protection on Power Transmission Lines field, and be specifically related to a kind of lightning conducter side needle device of anti-aeolian vibration, this device is applicable to be arranged near shaft tower on lightning conducter, effectively can prevent the Novel lightning-proof protective device of thunderbolt shaft tower and periphery wire.The utility model provides a kind of lightning conducter side needle device of anti-aeolian vibration, is stepped construction by wire clamp two ends, and side pin is connected to the top of the needle body linking arm of support, and the lower end of needle body linking arm is connected with balanced ball and is fixed by two bolt clamp; Stockbridge damper is connected with the left and right linking arm of support, achieve wire clamp mid portion can fully and ground wire contact, ensure when thunder and lightning hits side pin, can timely and effectively electric energy be poured into greatly by ground wire-shaft tower; Effectively can resist gentle breeze simultaneously.

Description

A kind of lightning conducter side needle device of anti-aeolian vibration

Technical field

The utility model relates to Lightning Protection on Power Transmission Lines field, and be specifically related to a kind of lightning conducter side needle device of anti-aeolian vibration, this device is applicable to be arranged near shaft tower on lightning conducter, effectively can prevent the Novel lightning-proof protective device of thunderbolt shaft tower and periphery wire.

Background technology

In order to reduce the lightning stroke trip accident of circuit, ensureing the reliable transmission of electric energy of power grid security, usually requiring that circuit (>=35kV) that is frequent at lightning stroke trip, the strong region of lightening activity installs necessary lightning protection device additional.According to the difference of protection object; lightning protection measures is mainly implemented from anti-shielding and anti-counterattack two angles; traditional anti-mine device comprises lightning rod, lightning arrester, lightning conducter etc.; for the transformation of supertension line; expensive lightning arrester makes improvement expenses high; be subject to the impact of the objective factors such as topography and geomorphology, the real protection scope of lightning conducter can not meet the demands simultaneously, is therefore badly in need of the more satisfactory and lightning protection device that cost is relatively low of a kind of lightning protection effect.Ground wire side pin is under the jurisdiction of the one of lightning rod, and its effect is that thunder and lightning is attracted to self, and it is imported to safely the earth by the shaft tower be communicated with, thus avoids wire attacked directly by thunder and lightning.Usually be directly installed at by side pin apart from the weak section of earth-wire protection of shaft tower certain distance, its protection range is subject to the impact of pyramidal structure, topography and geomorphology and self structure.

According to the structure design characteristic of side pin, be usually divided into 3 large classes, i.e. traditional ground wire side pin, retractable needle side pin, tower head side pin.Although tradition ground wire side its Lightning Protection of pin and structure simple, there is many-sided defect, the longer transport of such as needle body is inconvenient, installs needs many people collaborate, and operating experience for many years shows in addition, and needle body also exists certain defect in mechanical properties; Retractable needle side pin improves on traditional pin basis, side, and this type side pin adopts telescopic needle structure, reduces the transport of device, installs difficulty, but do not carry out substantial solution in mechanical performance defect; Tower head side pin is arranged on shaft tower two ends, and this device is the problem solving needle body mechanical defect (ground wire break stock) on the basis of sacrificing protection scope, and therefore its lightning protection effect is not ideal enough.

Summary of the invention

For the deficiency of background technology, the utility model provides a kind of lightning conducter side needle device of anti-aeolian vibration, be stepped construction by wire clamp two ends, side pin is connected to the top of the needle body linking arm of support, and the lower end of needle body linking arm is connected with balanced ball and is fixed by two bolt clamp; Stockbridge damper is connected with the left and right linking arm of support, achieve wire clamp mid portion can fully and ground wire contact, ensure when thunder and lightning hits side pin, can timely and effectively electric energy be poured into greatly by ground wire-shaft tower; Effectively can resist gentle breeze simultaneously.The utility model device is applicable to 220kV-750kV, ± 500kV, ± 800kV circuit, when there is aeolian vibration, the contact point of itself and ground wire can shift by wire clamp, thus by the amplitude of wire clamp and ground contact point and FREQUENCY CONTROL in the scope that ground wire material requires, solve the problem of side pin and the disconnected stock of ground contact point fatigue.

The technical solution of the utility model is: a kind of lightning conducter side needle device of anti-aeolian vibration, comprise support, side pin, stockbridge damper, balanced ball and two bolt clamp composition, it is characterized in that: described support comprises left and right linking arm, needle body linking arm, wire clamp, described wire clamp two ends are stepped construction, side pin is connected to the top of the needle body linking arm of support, and the lower end of needle body linking arm is connected with balanced ball and is fixed by two bolt clamp; Stockbridge damper is connected with the left and right linking arm of support.

Lightning conducter side as above needle device, is characterized in that: described side pin is assembled by needle body one and needle body two, and needle body one and needle body two all adopt stainless steel tube goods, two needle bodies respectively with external screw thread and internal thread, for the splicing of two needle bodies.

Lightning conducter side as above needle device, is characterized in that: described balanced ball is stainless steel.

The utility model has following features: convenient for installation and maintenance, avoid ground wire break stock, reduce lightning outage rate, be convenient to a large amount of installation.

Accompanying drawing explanation

Fig. 1 is the front view of the lightning conducter side needle device of the anti-aeolian vibration of the utility model, and wherein side pin is the combination unit of needle body one and needle body two.

Fig. 2 is the support vertical view of the utility model embodiment.

Fig. 3 a is needle body one vertical view of the utility model embodiment;

Fig. 3 b is needle body two vertical view of the present utility model;

Fig. 4 a is the left arm vertical view of the utility model stockbridge damper;

Fig. 4 b is the right arm vertical view of the utility model stockbridge damper;

Fig. 5 is that the concrete circuit of the utility model embodiment installs enforcement figure.

Embodiment

Description of reference numerals, accompanying drawing 1:1-support, 2-needle body one, 3-needle body two, 4-stockbridge damper, 5-balanced ball, 6-bis-bolt clamp, 7-ground wire;

Accompanying drawing 2:8-left and right linking arm, 9-needle body linking arm, 10-wire clamp.

Below in conjunction with accompanying drawing and concrete execution mode, content of the present utility model is described in further detail.

As shown in Figure 2; support 1 of the present utility model comprises left and right linking arm 8, needle body linking arm 9; and wire clamp 10; wherein left and right linking arm 8 is for installing stockbridge damper 4; the top of needle body linking arm 9 is used for directly being connected with side pin; the bottom of needle body linking arm 9 is used for being connected with balanced ball 5, and the design can reduce needle body and swing the inclination angle skew caused with the wind, avoids the available protecting scope of side pin to reduce.Wire clamp 10 two ends are stepped construction, can shift the reciprocally swinging point of wire clamp and ground wire like this, thus avoid same node under swing in high frequency, occur the phenomenon of disconnected stock.

As shown in Figure 1, the lightning conducter side needle device of anti-aeolian vibration of the present utility model is made up of base rack 1, needle body 1, needle body 23, stockbridge damper 4, balanced ball 5 and two bolt clamp 6.As shown in Figure 1, Figure 2, shown in Fig. 3 a, Fig. 3 b, needle body 1 is connected by screw thread with needle body 23, and assembly and connection is to the top of the needle body linking arm 9 of support 1, wherein inside needle body linking arm 9 containing nut attachable with needle body 23.

As shown in Figure 1, Figure 2, shown in Fig. 4 a, Fig. 4 b, stockbridge damper 4 and support 1 socket-connect, stockbridge damper 4 inside containing cylindrical deep trouth, its directly and the external diameter of the left and right linking arm 9 of support 1 can coincide and connect.

As shown in Figure 1, support 1 connects the part of needle body, installs balanced ball 5 device in its lower end, and the endoporus of balanced ball 5 external diameter that is direct and coupling part matches, and can be fixed by upper and lower two pieces of two bolt clamps 6 to it.

Needle body 1 of the present utility model and needle body 23 all adopt stainless steel tube goods, two needle bodies respectively with external screw thread and internal thread, for the splicing of two needle bodies; Two bolt clamp 6 is with being stable equilibrium ball 5; Stockbridge damper 4 is stainless steel products for reducing the Oscillation Amplitude of side pin and frequency; Balanced ball 5 is the weight that its weight of stainless steel products depends on needle body, rotates and reduce the torque forces to ground outside for avoiding side pin.

As shown in Figure 1, inside the wire clamp 10 of this lightning protection device, two ends adopt staged distributed architecture, the mid portion of wire clamp 10 can fully and ground wire contact, ensure when thunder and lightning hits side pin, electric energy can be poured into the earth timely and effectively by ground wire-shaft tower, simultaneously when there is aeolian vibration, the stepped construction at wire clamp 10 two ends can shift swing point, avoid a fixing point high-frequency, significantly swing state, solve the strand broking between wire clamp and ground wire 7 contact point, effectively improve the lightning protection ability of circuit.

Side of the present invention pin can form for one or more needle body, and can determine according to the length of root pin, be two root pins in the present embodiment.

Lightning protection device of the present invention is preferably installed at, and the ground wire between distance 15 meters-30 meters, shaft tower span center is shown in shown in accompanying drawing 5; the protected effect of this region lightning conducter is relatively weak; when thundercloud is at this discharging regions; thunder and lightning is guided to self by the upward leader that needle body can be produced by self; and passed and ground wire by wire clamp, eventually through the earth that shaft tower connects, the energy of thunder and lightning is discharged; thus compensate for the weakest section of lightning conducter protection, improve the lightning protection ability of circuit.

Claims (3)

1. the lightning conducter side needle device of an anti-aeolian vibration, comprise support, side pin, stockbridge damper, balanced ball and two bolt clamp composition, it is characterized in that: described support comprises left and right linking arm, needle body linking arm, wire clamp, described wire clamp two ends are stepped construction, side pin is connected to the top of the needle body linking arm of support, and the lower end of needle body linking arm is connected with balanced ball and is fixed by two bolt clamp; Stockbridge damper is connected with the left and right linking arm of support.

2. lightning conducter side as claimed in claim 1 needle device, it is characterized in that: described side pin is assembled by needle body one and needle body two, needle body one and needle body two all adopt stainless steel tube goods, two needle bodies respectively with external screw thread and internal thread, for the splicing of two needle bodies.

3. lightning conducter side as claimed in claim 1 or 2 needle device, is characterized in that: described balanced ball is stainless steel.