KR101851704B1 - Structure of damper device for power distribution steel tower - Google Patents

Abstract

The present invention relates to a damper device structure of an overhead power distribution steel tower, and more particularly, to a damper device structure of an overhead power distribution steel tower, which prevents a line installed in a power distribution steel tower from being shaken by wind or the like to prevent accidents, thereby performing a smooth power distribution function. According to the present invention, power distribution lines (L1, L2) of the overhead power distribution steel tower are connected by a link arm (10).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper device structure for a power distribution tower,

[0001] The present invention relates to a damper device structure of a power distribution tower of a power distribution technology field, and more particularly, to a damper device structure of a power distribution tower which prevents a safety accident by preventing a shunt line, The present invention relates to a damper device structure of a power distribution tower.

Generally, a power distribution refers to supplying power by lowering the power delivered to a substation through a transmission line to a voltage suitable for use in each customer.

At this time, the electric line used for distribution is called distribution line, and the electric distribution line is composed of the processing electric distribution line passing mostly over the ground, but the underground wiring line passing through the earth centering on large cities and new cities is on the increase trend .

A power distribution system is a system in which power is supplied directly to a customer from a substation where power is transmitted through a transmission line. The power distribution system is divided into a high-voltage distribution line and a low-voltage distribution line with a distribution transformer such as a pillar- Loses.

In this case, the high-voltage distribution line refers to a line from a distribution substation to a distribution transformer, such as a pillar-type transformer, for lowering the voltage to a suitable value for the customer.

In addition, a low-voltage distribution line is a low-voltage line extending from a distribution transformer to each customer, and is usually constructed by a telephone pole.

In this case, the steel tower used for installing the high-voltage distribution line is similar to the steel tower used for installing the transmission line, as shown in the example of FIG. 1, in consideration of the topography and the like, a quadrangular tower, a square tower, Steel tower, and MC tower.

However, in order to maintain a stable state of the power distribution line, interference between power distribution lines (high-voltage cables) arranged in parallel with each other is minimized, and it is necessary to prevent the adjacent lines within the allowable gap between power distribution lines.

In addition, it is necessary to minimize the lateral forces received by the plurality of suspending insulators when the power lines are transversely moved by the wind power, and to prevent such a plurality of suspending insulators from being broken by the power lines moving in the lateral direction.

To this end, a plurality of spacer members have been disclosed for buffering while maintaining the spacing of the power distribution lines installed on the steel tower, but they are structurally too complicated and ineffective and left untouched.

Therefore, there is a continuing need for an effective damper device capable of preventing interference or short-circuiting of power distribution lines due to strong wind power and preventing damage to suspension insulators fixing the power distribution lines.

Korea Patent Registration No. 10-1500447 (2015.03.03) 'Vibration prevention device for transmission and distribution'

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and it is an object of the present invention to provide a method of preventing a safety accident by preventing a machined line installed on a power distribution tower, The present invention provides a damper device structure for a power distribution tower.

In order to achieve the above-mentioned object, the present invention provides a method of manufacturing a power distribution tower, comprising the steps of linking between power distribution lines (L1, L2) of a power distribution tower with a plurality of suspension insulators, A damper device structure comprising:

One end lower end of the link arm 10 is opened, and an upper upper rod fitting hole 20 having a certain radius is formed in the upper part, the insertion groove 30 is formed in a vertical direction; A supporting piece (40) having a lower rod fitting hole (22) of a certain radius is disposed in an open lower portion of the insertion groove (30); The shaft rod-cushioning material assembly is inserted into the insertion groove 30 by enclosing the shaft rod 50 with the cushioning material 60. The shaft rod-cushioning material assembly has a state in which the shaft rod 50 is disposed in the forming die In which a cushion material 60 made of acetal or polycarbonate is injected to integrally enclose the shaft rod 50 in an insert molding manner; The upper end portion 52 and the lower end portion 54 of the shaft rod 50 protrude outward from the upper end and the lower end of the cushioning material 60 and are formed to be exposed; The first coil-like elastic body 70 and the second coil-like elastic body 72 are fitted to the outer circumferential surface of the shaft rod 50 and are integrally formed with the shock-absorbing material 60; The first coil-like elastic body (70) and the second coil-like elastic body (72) are vertically spaced so that their helical directions are opposite to each other; First and second fastening rings R1 and R2 are formed on the lower ends of the first coil-like elastic body 70 and the second coil-like elastic body 72, respectively. First and second through holes 62a and 62b are formed on the outer surface of the cushioning material 60 corresponding to the first and second fixing rings R1 and R2. The fixture F is fitted in the first and second through holes 62a and 62b to fix the lower ends of the first coil-like elastic body 70 and the second coil-like elastic body 72 to the link arm 10; The upper end portion 52 and the lower end portion 54 of the shaft rod 50 are formed with teeth having a tooth shape that is formed in the longitudinal direction of the shaft rod 50 and is bent in a ' The first and second support members 80 and 82 are rotated together so that the shaft rod 50 and the first support member 80 and the second support member 82 are rotated together Being; A pair of link hinge pieces 90a protrude from the other end of the link arm 10; A plate-shaped fixing bracket (BR) is screwed on each of the outer surfaces of the first and second support members (80, 82); On the outer surface of the fixing bracket (BR), a supporting hinge piece (90b) integrally protrudes; The transmission line fixture 92 of the same shape is hingedly fixed to the link hinge piece 90a and the support hinge piece 90b; The transmission line fixture 92 is formed to have an opening OP in a 'C' shape so that the distribution lines L1 and L2 can be inserted therein; And a fixing rod 94 which is vertically penetrated and screwed together is provided at both open ends thereof; The damper device structure of the power distribution tower is characterized in that the fixing rod (94) is fitted with a fitting hole (96) for pressing and fixing the power distribution lines (L1, L2).

According to the present invention, it is possible to prevent an accidental shaking of a machined line installed on a power distribution tower by an influence of wind or the like, thereby preventing a safety accident and inducing a smooth distribution function.

FIG. 1 is an exemplary view showing various examples of a general steel tower.
2 is an exploded perspective view illustrating an example of a damper device structure of a processing power distribution tower according to the present invention.
Figure 3 is an exemplary longitudinal section view of Figure 2;
Fig. 4 is an exemplary view schematically showing an example of use of a damper device structure of a machining and distribution steel tower according to the present invention.
5 is a view showing another example of the structure of a damper device of a machining and distribution steel tower according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As shown in Figs. 2 to 4, the damper device structure of the machining distribution steel towers according to the present invention includes a link arm 10.

Particularly, the damper device structure of the processing power distribution tower according to the present invention links between the power distribution lines L1 and L2 of the power distribution tower having a plurality of suspension insulators to absorb and absorb vibrations caused by strong winds, Thereby preventing a short circuit and preventing breakage of the suspending insulator fixing the power distribution lines L1 and L2.

The link arm 10 is disposed between the power distribution lines L1 and L2 and links the two power distribution lines L1 and L2 to thereby cause lateral movement of the power distribution lines L1 and L2 generated by the strong wind, So as to suppress the sluggishness.

At this time, the link arm 100 is designed to have a length corresponding to the distance between the two power distribution lines L1 and L2. The link arm 100 has an upper upper rod insertion hole 20 having a lower radius, The insertion groove 30 is formed in the vertical direction.

The lower end of the insertion groove 30 is provided with a support piece 40 having a lower rod insertion hole 22 having a predetermined radius.

In addition, in the insertion groove 30, the shaft rod 50 is wrapped with the cushioning material 60, and the integral shaft rod-cushioning material assembly is inserted.

The axial rod-cushioning material assembly may be manufactured by an insert molding method in which the cushioning material 60 is injected while the axial rod 50 is disposed in the forming mold and the shaft rod 50 is completely wrapped .

In this case, the cushioning material 60 is made of acetal or polycarbonate (PC) because acetal or polycarbonate is a thermoplastic resin and the compressive deformability is small and the expansion state is maintained at room temperature. Therefore, the first coil- 2 type elastic body 72 to maximize the frictional force with the coil-like elastic body 72, thereby effectively achieving a desired damping function.

The upper end portion 52 and the lower end portion 54 of the shaft rod 50 should be formed so as to protrude outward from the upper and lower ends of the cushioning material 60, The first coil-like elastic body 70 and the second coil-like elastic body 72 are fitted on the outer peripheral surface of the first coil-shaped elastic body 50 and are integrally formed together with the shock-

The first coil-like elastic body 70 and the second coil-like elastic body 72 are arranged so that their helical directions are vertically spaced apart from each other so that they are always in contact with each other regardless of the rotational direction of the shaft rod 50 So that the rotational torque due to elasticity is made zero base to maximize the damping function of the shaft rod 50.

Particularly, the shaft rod 50 is formed with thread threads of 3-4 pitches in the upper and lower parts of the length, and the first and second fixing washers 56 and 58 are screwed to the respective threads, The coil type elastic body 70 and the second coil type elastic body 72 are inserted into the shaft rod 50 and then the first coil type elastic body 70 and the second coil type elastic body 72 are inserted into the shaft rod 50, The first coil-shaped elastic body 70 and the second coil-shaped elastic body 72 can be fixed in position without flowing down during the molding of the shaft rod-cushioning material assembly, so that the moldability is easy and convenient.

In addition, at positions corresponding to the first and second stationary rings R1 and R2 formed at the lower ends of the first coil-like elastic body 70 and the second coil-like elastic body 72 at the time of forming the axial rod- The first coil-like elastic body 70 and the second coil-like elastic body 70 are formed so that the two through-holes 62a and 62b can be formed by fitting the fixture F through the first and second through holes 62a and 62b, So that the lower end of the elastic body 72 can be fixed to the link arm 10.

In addition, each of the upper ends of the first coil-like elastic body 70 and the second coil-like elastic body 72 are fitted into the shaft rod 50 so as to be engaged with the shaft rod 50 when the shaft rod- And the upper ends of the first coil-like elastic body 70 and the second coil-like elastic body 72 are bent and fixed so that the first coil-like elastic body 70 And the second coil-shaped elastic body 72 are configured to operate elastically.

In addition, first and second fitting holes 10a and 10b are formed on the outer surface of one end of the link arm 10 at positions corresponding to the first and second through holes 62a and 62b, The fastener F is screwed to the link arm 10 through the first coil-like elastic body 70 and the second coil-like elastic body 72 through screw holes 10a and 10b, respectively, The first coil-like elastic body 70 and the second coil-like elastic body 72 are inserted into the first and second fixed rings R1 and R2 formed respectively so as to be elastically deformed relative to the axial rod 50 and the link arm 10 Operation is possible.

The upper end portion 52 and the lower end portion 54 of the shaft rod 50 are formed with teeth having a tooth shape formed in the longitudinal direction of the shaft rod 50, The first support member 80 and the second support member 82 can be rotated together by engaging the first support member 80 and the second support member 82 in a state where the first support member 80 and the second support member 82 are engaged with the teeth. desirable.

In this case, the upper end portion 52 and the lower end portion 54 of the shaft rod 50 are formed to have a rectangular shape instead of a tooth shape, and the corresponding insertion portions of the first and second support members 80 and 82 are also formed into a corresponding rectangular shape A more stable integration operation becomes possible.

A pair of link hinge pieces 90a protrude from the other end of the link arm 10 and are fixed to outer surfaces of the first and second support members 80 and 82 in a plate- BR are fixed to the outer surface of the fixing bracket BR and the supporting hinge pieces 90b are protruded on the outer surface of the fixing bracket BR so as to face the link hinge pieces 90a.

The transmission line fixture 92 of the same shape is hingedly fixed to the link hinge piece 90a and the support hinge piece 90b.

The transmission line fixture 92 is formed in a 'C' shape so as to be able to insert the distribution lines L1 and L2. The transmission line fixture 92 is provided with fixing rods 94 which are vertically penetrated to be screwed at both ends, The fixing rod (94) is fitted with a fitting hole (96). In particular, a washer-shaped hooking flange T is screwed around the fixing rod 94 so that the fixing rod 94 is inserted into the lower end of the transmission line fixing hole 92, The tightening flange T is screwed when exposed and then the tightening tool 96 is inserted and the fixing rod 94 is fastened to the upper end of the power transmission line fixing tool 92. When the tightening tool 96 is tightened, The lower side of the closely fitting contact 96 pushes the distribution lines L1 and L2 from the opening OPEN of the transmission line fixture 92 toward the body of the transmission line fixture 92 to come into close contact with each other So that the power distribution lines L1 and L2 can be stably and elastically fixed.

Here, the contact piece 96 is formed of an elastic material, preferably rubber or silicone, and is configured such that its longitudinal section has a trapezoidal shape.

When the link arm 10 configured as described above is disposed between the power distribution lines L1 and L2 and the power distribution lines L1 and L2 are fixed to the respective power transmission line fixtures 92, the two power distribution lines L1 and L2 maintain the proper gap The elasticity is buffered.

That is, when the distribution lines L1 and L2 are severely shaken due to the strong wind, the link hinge 90a and the supporting hinge pieces 90b are rotationally flown and buffered.

The shaft rod 50 rotates along with the rotational flow of the first and second support members 80 and 82. The shaft rod 50 rotates together with the first coil-like elastic body 70 and the second coil- 72 and thus interferes with the free rotation of the shaft rod 50.

In particular, since the helical directions of the first coil-like elastic body 70 and the second coil-like elastic body 72 are opposite to each other, elastic stiffening and loosening always occur at mutually staggered positions irrespective of the rotational direction of the shaft rod 50 The movement is naturally made in a direction in which the two power distribution lines L1 and L2 are always kept parallel.

Since the first coil-like elastic body 70 and the second coil-like elastic body 72 are coupled to the link arm 10, the first coil-like elastic body 70 and the second coil- So that the distribution lines L1 and L2 can be kept stable in a short time without generating a large amplitude of vibration.

In addition, the elastic modulus of the first coil-like elastic body 70 and the second coil-like elastic body 72 may be adjusted to enhance the buffering force.

Further, in order to further strengthen the buffering force, as shown in the example of FIG. 5, the link arm 10 has a hinge shape by being divided into at least two portions in a part of the length.

At this time, the segmented protrusions 100 and the segmented insertion portions 110 are formed so that the opposite portions of the segmented portions are staggered.

A torsion spring 120 is formed on both sides of the segment insertion part 110 in a direction orthogonal to the segment insertion part 110 on both sides of the segment projection part 100. The torsion spring groove 120 A torsion spring 130 is installed.

In this case, the torsion spring 130 is disposed on the torsion spring 120 in a state where the torsion spring 130 is inserted in the segmented hinge shaft 140. The segmented hinge shaft 140 penetrates through both sides of the segmented portion, (110) and the segmented protrusion (100) are hinged to each other.

In addition, one end of the torsion spring 130 is hooked on the side of the segment insertion portion 110, and the other end is hooked on the side of the segment projection 100, so that the segmented portion is elastically buffered.

Here, it is preferable that the torsion springs (130) provided on both sides of the segment projection (100) are arranged in mutually opposite directions so that the segment portions always maintain a straight line.

That is, the directions in which the elastic return force acts are opposite to each other so that the buffer force is always balanced in a straight line when the buffer is buffered, so that the buffering force should be increased.

In other words, if the elastic restoring force of one torsion spring is arranged so as to act from the front to the rear, the other torsion spring means that the elastic return force should be arranged so as to act from the rear to the front. This means that the direction in which the elastic return force acts depends on where the both ends of the torsion spring are wound in relation to the winding direction.

In addition, the link arm 10, the first and second support members 80 and 82, the power transmission line fixture 92, the fixing rods 94 and the fixing bracket BR are made of a synthetic resin composition having electrical insulation and high durability .

To this end, the synthetic resin composition was prepared by mixing 8 parts by weight of a sintered pulverized product for improving durability, octyl methoxycinnamate (manufactured by Nippon Kayaku Co., Ltd.) with 100 parts by weight of the acrylic resin in a mixture of 80% by weight of acrylic resin and 20% by weight of methylpentene polymer resin Octyl methoxy cinnamate), 2 parts by weight of barium ricinoleate, 4.5 parts by weight of sodium silicate, 2.5 parts by weight of oxycarboxylate, 1.5 parts by weight of citronella oil, 0.1 part by weight of microcapsulated poly 3 parts by weight of propylene yarn, 4 parts by weight of polyoxyethylene, 3 parts by weight of propylene glycol, 2.5 parts by weight of N-ethylgavazol methacrylate, 3 parts by weight of sepiolite, 2.5 parts by weight of melamine cyanate, 2.5 parts by weight and Mica (Mica) 1.5 parts by weight.

At this time, the acrylic resin is used for maximizing the adhesive strength. The methylpentene polymer resin has a low viscosity and is easy to apply because of its good flowability, and has a very high melting point of 235 ° C, excellent mechanical strength at high temperature, .

The sinterable pulverized product for improving durability was prepared by mixing 20 wt% of silicon oxide, 10 wt% of boric acid, 10 wt% of acetic acid, 20 wt% of zinc oxide, 10 wt% of barium, 10 wt% of cobalt oxide, % By weight, followed by melt-sintering at 1500 DEG C and then pulverizing to a particle size of 1-2 mu m.

These components are added in order to enhance the bonding strength of the resin and increase the bonding force between the components to improve the durability.

Particularly, in order to further enhance the durability enhancement function of these materials, the mixture is sintered, pulverized and put into an ultra-fine powder state in order to increase the efficiency.

The octyl methoxycinnamate liquid is added as a liquid ultraviolet absorber in which cinnamate is dissolved in coconut oil so as to enhance the heat-generating function by absorbing ultraviolet light and converting it into heat.

In addition, the barium ricinoleate is added for the purpose of suppressing the pyrolysis to the maximum extent and preventing deterioration easily, thereby improving the shape retentivity.

In addition, the sodium silicates are added to enhance heat resistance and insulation by inducing gelation to form a film.

In addition, the oxycarboxylate is added to reduce moisture content of the material to reduce voids and thereby increase strength.

The citronella oil is generally added to improve the insect repellency, but in the present invention, it is added in order to promote the viscosity control and the coordination of the inorganic powders.

In addition, a polypropylene yarn having a length of 0.1 탆 and microencapsulated by a Wurster Method can be further added so that heat resistance and insulation properties of the urethane resin can be realized.

Polyoxyethylene is a kind of polyether which is obtained by polymerization of ethylene oxide with a cationic catalyst. In the present invention, it is added in order to inhibit the generation of static electricity by forming a film in a state of being dissolved in water in a fabric and paper.

In addition, propylene glycol is hygroscopic but has no volatility and is stable to heat and light, so it is used as a solvent to dissolve resin and mix with water, and is added to prevent fungal growth on the surface.

In addition, N-ethyl-carbazole methacrylate is added in order to enhance the transparency and to prevent cracking in the molding tissue.

Furthermore, sepiolite is referred to as meerschaum, a round tubular variant, and is added to induce dispersion stability and uniform dispersion of the resin composition.

In addition, melamine cyanate is added to reinforce heat resistance. Tetraisopropyltitanate is a coupling agent having an organic titanate structure, which enhances the interfacial adhesion between the polymer resin and the inorganic substance to increase both durability and heat resistance And mica is a kind of silicate minerals which are crushed to a size of 0.1-0.2 μm and sieved and added to enhance surface hardness and heat resistance due to hardness characteristics.

10: link arm 20: upper rod fitting hole
22: lower rod fitting hole 30: insertion groove
40: Support piece 50: Axial rod
60: cushioning material 70: first coil-shaped elastic body
72: second coil-shaped elastic body 80:
82: District 2

Claims (1)

1. A damper device structure for a power distribution tower, comprising a plurality of suspension bridges (L1, L2) connected to a link arm (10) to absorb and cushion vibrations caused by strong winds;
One end lower end of the link arm 10 is opened and an upper upper rod fitting hole 20 having a certain radius is formed in the upper portion of the link arm 10, and the insertion groove 30 is formed in a vertical direction; A supporting piece (40) having a lower rod fitting hole (22) of a certain radius is disposed in an open lower portion of the insertion groove (30); The shaft rod-cushioning material assembly is inserted into the insertion groove 30 by enclosing the shaft rod 50 with the cushioning material 60. The shaft rod-cushioning material assembly has a state in which the shaft rod 50 is disposed in the forming die In which a cushion material 60 made of acetal or polycarbonate is injected to integrally enclose the shaft rod 50 in an insert molding manner; The upper end portion 52 and the lower end portion 54 of the shaft rod 50 protrude outward from the upper end and the lower end of the cushioning material 60 and are formed to be exposed; The first coil-like elastic body 70 and the second coil-like elastic body 72 are fitted to the outer circumferential surface of the shaft rod 50 and are integrally formed with the shock-absorbing material 60; The first coil-like elastic body (70) and the second coil-like elastic body (72) are vertically spaced so that their helical directions are opposite to each other; First and second fastening rings R1 and R2 are formed on the lower ends of the first coil-like elastic body 70 and the second coil-like elastic body 72, respectively. First and second through holes 62a and 62b are formed on the outer surface of the cushioning material 60 corresponding to the first and second fixing rings R1 and R2. The fixture F is fitted in the first and second through holes 62a and 62b to fix the lower ends of the first coil-like elastic body 70 and the second coil-like elastic body 72 to the link arm 10; The upper end portion 52 and the lower end portion 54 of the shaft rod 50 are formed with teeth so that the teeth are formed in the longitudinal direction of the shaft rod 50 to form a first support portion 80 And the second support member 82 are engaged with the teeth so that the first support member 80 and the second support member 82 can rotate together with the shaft rod 50; A pair of link hinge pieces 90a protrude from the other end of the link arm 10; A plate-shaped fixing bracket (BR) is screwed on each of the outer surfaces of the first and second support members (80, 82); On the outer surface of the fixing bracket (BR), a supporting hinge piece (90b) integrally protrudes; The transmission line fixture 92 of the same shape is hingedly fixed to the link hinge piece 90a and the support hinge piece 90b; The transmission line fixture 92 is formed to have an opening OP in a 'C' shape so that the distribution lines L1 and L2 can be inserted therein; And a fixing rod 94 which is vertically penetrated and screwed together is provided at both open ends thereof; Wherein a damper (96) for pressing and fixing the power distribution lines (L1, L2) is fitted in the fixing rod (94).

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