KR20090055095A - A roller device for extending of the electrical cable - Google Patents

A roller device for extending of the electrical cable Download PDF

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Publication number
KR20090055095A
KR20090055095A KR1020070121835A KR20070121835A KR20090055095A KR 20090055095 A KR20090055095 A KR 20090055095A KR 1020070121835 A KR1020070121835 A KR 1020070121835A KR 20070121835 A KR20070121835 A KR 20070121835A KR 20090055095 A KR20090055095 A KR 20090055095A
Authority
KR
South Korea
Prior art keywords
support frame
guide
electric cable
guide rollers
car
Prior art date
Application number
KR1020070121835A
Other languages
Korean (ko)
Inventor
신상철
안승인
Original Assignee
삼성물산 주식회사
주식회사 영광
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성물산 주식회사, 주식회사 영광 filed Critical 삼성물산 주식회사
Priority to KR1020070121835A priority Critical patent/KR20090055095A/en
Publication of KR20090055095A publication Critical patent/KR20090055095A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Cable Installation (AREA)

Abstract

The present invention relates to a transmission line installation car, more specifically, a support frame made of a curved shape of a certain length; A plurality of guide rollers having a concave guide groove having a predetermined depth at an outer circumference thereof and rotatably installed at the support frame at a predetermined interval; One end is fixed to the support frame, the other end having a fastening means is provided on the tip end fixed guide rod is fixed to protrude a predetermined length to the outside of the curved portion of the support frame; The present invention relates to a transmission line installation gold car that improves the quality of an electric cable installed by preventing twisting and swelling, and is made of light metal material having excellent durability and light weight, so that the installation and release of the gold car can be easily performed during the height of the upper part of the steel tower.

Description

A ROLLER DEVICE FOR EXTENDING OF THE ELECTRICAL CABLE}

The present invention relates to a vehicle for installing transmission lines, and more particularly, to prevent excessive twisting or swelling of electrical cables and wires during the twisted pair construction of electrical cables for transmission, improving the quality of electrical cables, and having excellent durability and weight. The present invention relates to a transmission line installation gold car which is made of this light metal material to facilitate the installation and release of the gold car at the top of the steel tower.

The present invention, which is used for installing electric cables for transmission, which is a technical field to which the present invention belongs, is usually installed when the electric cable is installed over a long distance, in particular, when the electric cable is installed using a pylon installed in the outdoor, etc. The electric cable or wire that is continuously installed in the pylon serves as a guide to guide the movement of the electric cable so that it is continuously installed via the corresponding pylon.

Therefore, the conventional gold used in the twisted-pair operation of the electric cable so as to enable the smooth movement of the electric cable or wire, as shown in Figure 1 is usually a guide roller 16 having a certain diameter to the support frame 10 Electric cable or wire that is pulled from one side by passing the electric cable to be installed between the support frame 10 and the outer circumference of the guide roller 16 after fixing the support frame 10 to the steel tower or other fixture to which the electric cable will be installed. Is moved together with the rotation of the guide roller (16).

However, this conventional car (5) has a small radius of curvature of the guide roller 16, as shown in the use state of Figure 2, the entry portion (a) and the guide roller 16 into which the electric cable 50 enters After passing through, the angle between the exit portion (b) discharged is relatively small, which causes excessive bending of the electric cable, which requires a lot of tension, and an electric cable that is pulled is formed on the outer periphery of one guide roller 16. Moving in close contact with the guide groove is generated a large friction force between the guide groove of the guide roller and the surface of the electric cable or wire 50.

As such, when the friction force generated between the guide groove of the guide roller and the surface of the electric cable or the wire 50 acts in the twisting direction of the electric cable or the wire 50, the greater the twist in the twisting direction of the electric cable or the wire 50. The force generated by the force generated excessive torsional force on the surface of the electric cable or wire has caused a problem of shortening the life of the product.

In addition, when the friction force generated when contacting the guide groove of the guide roller acts in the opposite direction in which the electric cable or the wire is twisted, it causes an swelling phenomenon that causes the electric cable or the wire 50 to be twisted. The problem of lowering the strength of the wire 50 or lowering the quality has occurred.

In addition, the conventional car (5) has a problem that it is difficult to install or dismantle it when the height is heavy, such as a steel tower work, as well as causing various safety accidents when working with heavy weight.

The present invention has been invented to solve the problems of the conventional gold car described above, the present invention is an electric cable or wire to the frictional force of any one direction with respect to the inner surface of the guide roller during the twisted pair construction of the electric cable for transmission using the gold car It is not only to prevent excessive twisting force or swelling to release the twist, but also to prevent the quality from deteriorating, and to improve the uncomfortable workability caused during installation and dismantling of the car due to overweight. The purpose is to provide a gold car for installing transmission lines.

In addition, the present invention is to provide a gold wire for installation of a transmission line that can prevent the occurrence of excessive bending of the electric cable due to the small radius of curvature of the current to improve the installation workability of the electric cable and to prevent damage to the electric cable There is a purpose.

In order to achieve the above object, the transmission line installation car according to the present invention is a curved frame of a predetermined length, preferably a support frame made of an arc; A plurality of guide rollers provided with a concave guide groove at an outer circumferential center thereof and rotatably installed at the support frame at a predetermined interval; One end is fixed to the support frame, the other end is provided with a fastening means is fixed guide rod is fixed to protrude a predetermined length to the outside of the curved portion of the support frame; consisting of a configuration including a.

Particularly, the present invention supports the same support even when the guide rollers located at the center of the plurality of guide rollers and the guide rollers installed on both sides have the same radius of curvature so that a gentle bending of the electric cable entering and exiting the vehicle is achieved. It is configured to have a structure that is installed on different concentric circles on the frame.

Transmission line installation according to the present invention is a plurality of guide rollers are installed on the support frame at regular intervals to distribute the tension acting on the line during the passage of the electric cable or wire, the flexible passage of the electric cable and the Prevent damage to the sheath and improve the durability of the electrical cable.

In particular, the present invention is due to the plurality of guide rollers installed at regular intervals on the arcuate support frame of a constant size to increase the radius of curvature larger than the conventional gold car to prevent excessive bending of the electrical cable passing through this workability In addition, the present invention provides a useful effect of preventing the deterioration of the quality of the electric cable by releasing the twisting of the electric cable or the wire, or vice versa.

In addition, since the present invention is manufactured using a light weight material, it is easy to attach and detach during installation and dismantling to improve the efficiency of the work, and to reduce the risk of safety accidents of the operator.

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

The embodiments described in the specification of the present invention and the accompanying drawings are merely examples for easily describing the content and scope of the technical idea of the present invention, and thus the technical scope of the present invention is not limited or changed. It will be apparent to those skilled in the art that various modifications are possible within the scope of the present invention.

Figure 3 is an external perspective view showing the assembled state of the installation for the transmission line according to the embodiment of the present invention, Figure 4 is an exploded perspective view of the parts of the main part of FIG.

As shown in the figure, according to the present invention (5 ') is a support frame 10, 10a of a thin metal plate made of an arc shape of a certain length, and the support frame (10) (10a) And a plurality of guide rollers 20 and 20a formed to be rotatably fixed at regular intervals on the outer circumferential edge thereof, and formed with concave guide grooves 22 having a predetermined depth on the outer circumference thereof. Is fixed and the other end is fixed guide 30 is installed so as to project a certain height outside the curved portion 14 of the support frame (10) (10a), and the fixed guide is rotatably coupled to the upper end of the guide (30) It consists of a configuration provided with a fastening means 40 for fixing and fixing the car (5 ') to the fixture.

Referring to the exploded perspective view of Figure 4 described in more detail with respect to the configuration of the present invention, the support frame (10) (10a) is a plurality of guide rollers to effectively support the guide roller 20 is rotatably installed It is preferable that it consists of a pair structure provided in the both sides of (20) (20a), respectively, The shape is formed in circular arc shape, and the outer peripheral edge part of one side has the shape which has the predetermined curved part 14. As shown in FIG.

As described above, the pair of support frames 10 and 10a are fastened so that a plurality of guide rollers 20 and 20a may be positioned therebetween so that the support frames 10 and 10a may be fixed by a fastener 12 composed of a predetermined bolt and nut. An installation through hole 15 is formed, and the support holes 10 and 10a are formed in the center of the support frame 10 and 10a so as to be firmly coupled to each other while maintaining a constant distance between the support frame frames 10 and 10a. 15a is formed.

A plurality of the guide rollers 20 and 20a which are positioned between the pair of support frames 10 and 10a and fixedly installed between the support frames 10 and 10a on both sides by the fastener 12. ) Is formed to have a concave guide groove 22 of a certain depth in the outer peripheral center is formed so as to move smoothly as the electric cable or wire of a certain diameter is contacted, the material is light in weight, excellent durability and rigidity It is preferable to be made of aluminum or special steel, the urethane coating (or MCL) is formed on the surface is configured to minimize the damage to the outer cable of the electric cable.

A plurality of guide rollers 20 and 20a are provided on the outer side of the center of both support frames 10 and 10a in which the guide rollers 20 and 20a are installed in an arc shape similarly to the shape of the support frame, respectively. The fixed guide stand 30 is configured to be separated into left and right sides, respectively, and the upper and lower ends of the fixed guide stand 30 are configured to be separated from each other and coupled by a fastening part, and the fixed guide stand ( A predetermined fastening means 40 is coupled to the upper surface of the rotatable structure.

Figure 5 is an exemplary view for explaining each installation structure for the plurality of guide rollers 20, 20a fixedly installed in the support frame 10 (10a) described above in accordance with an embodiment of the present invention. .

As shown in the figure, two guide rollers 20 installed in the center of the plurality of guide rollers 20 arranged at regular intervals on the same support frame (10) (10a) and two guides installed to the outside Even if the roller 20a has the same radius (r = r '), the roller 20a is installed on different concentric circles instead of being installed on one support frame 10 or 10a to enter one side on a support frame of a constant size. It is configured to make the entrance angle of electric cable and electric cable advancing to the other side so that electric cable or wire entering or exiting gold car does not cause excessive bending between both ends of gold car. When pulling a wire or wire, the guide bracket of the guide roller minimizes the traction and binds the electric cable or wire. It is designed to prevent take on the inner or generate a large resistance.

That is, as shown in the drawing, the radius r of the two guide rollers 20 installed in the center and the radius r 'of the two guide rollers 20a installed outward are the same (r = r'). Even if the position is installed on the support frame (10) (10a) is installed on different concentric circles so that the angle between the entrance and exit entrance of the electrical cable or wire to the current and finally exits somewhat moderately to maintain a large friction force and It is configured to have a structure in which no bending occurs.

6 to 8 show an embodiment of the car 5 ″ different from the car 5 'for the one-wire electric cable described above. The present embodiment simultaneously shows two-wire electric cables. An embodiment in which a plurality of guide rollers 20 and 20a are fixed at regular intervals between a plurality of rows of support frames 10 and 10a and the plurality of support frames 10 and 10a to perform a stranded work It is shown.

As in the above-described embodiment, the fixing guide 30 is installed outside the center of the support frame 10 or 10a, and a plurality of rows of support frames and guide rollers are disposed in order to perform twisting of two or more electric cables. The present invention provides a tab for simultaneously installing an electric cable of a double wire, and the present embodiment also supports the installation positions of the guide rollers 20 in the center and the guide rollers 20a on both the left and right sides as in the above-described embodiment. It is not located on the same concentric circle of the frame but is located on different concentric circles so that the angle between the electric cable entering the car and the electric cable exiting the car can be made smoothly. The features configured to be the same are the same.

Figure 6 is an embodiment in which the two-wire installation guide roller is installed in the same structure on both sides between the three (three) support frame (10) (10a), Figure 9 is installed two gold in the center of the above-described embodiment The embodiment is integrally formed by the fixing guide 30 and the fastener 12a and the space maintaining member 17 to be used, in addition to the embodiment shown in the drawings, a plurality of wires for the twisted pair work of two or more double wires. Row support frame and guide roller can be installed and configured.

On the other hand, the following shows the operation of the installation and use of the current (5 ') (5 ″) according to the embodiment of the present invention having the above-described configuration and the operation state of the embodiment described above with respect to its operation This will be described with reference to 9 and FIG. 10.

Figure 9 is a simplified extract showing the state of use of the gold tea (5 ') according to an embodiment of the present invention, gold tea (5') according to an embodiment of the present invention is an electrical cable or wire is installed It is fixed to the pylon 60 through the fastening means 40 at the top of the fixing guide 30, the installation state thereof is shown in FIG.

In the case of fixed installation of the vehicle 5 ', the upper and both sides of the guide rollers 20 and 20a of the guide rollers 20 and 20a fixed to the support frame 10 from one side of the vehicle to the installed electric cable or wire 50 Pass through the inside of the table (30).

The electric cable or wire passing through the vehicle 5 'is in contact with the inner surface of the guide groove 22 formed as the upper surface of the plurality of guide rollers 20 and 20a, and the electric cable passed through the guide rollers 20 and 20a. Alternatively, when the wire is towed at the exit, high tension is generated in the electric cable or the wire, and a large tension is generated between the inner surface of the guide groove 22 of each guide roller 20 and 20a and the surface of the electric cable or wire. The friction force is generated.

In the case of the electric cable or wire 50, the length and installation height, etc. are usually passed through the car 5 'with a significant tension of several tons or more, at this time the surface of the electric cable or wire 50 twisted in one direction Significant friction is also generated between the inner surface of the guide groove 22 and the guide groove 22.

At this time, the electric cable or wire 50 twisted in one direction is subjected to a considerable friction force (resistance force) in the twisting direction or the twisting direction while passing through each guide roller 20, 20a.

Therefore, in the case of using a conventional gold car, the electric cable continuously moving in contact with the inner surface of the guide groove of one guide roller continues to have the same friction force only in one direction in the twisting direction or the opposite direction. When acting in the direction of the cable, excessive twisting of the electric cable increases the durability and stiffness of the electric cable or wire. In addition, when the frictional force acts in the opposite direction of the twist, the twisted electric cable or wire is generated. In addition, it also acted as a factor to degrade the quality or durability of the electric cable or wire.

However, in the exemplary embodiment of the present invention, since the plurality of guide rollers 20 and 20a are installed at regular intervals, the guide rollers 20 and 20a may move to the guide grooves 22 of the guide rollers 20 and 20a. When friction force acts not only continuously in one direction but each guide roller 20 and 20a passes, friction force acts in different directions or when friction force passes between the guide rollers. A phenomenon in which the frictional force is temporarily released and excessive twisting force is generated in the twisting direction of the electric cable or wire while passing through the entire guide roller, or the frictional force is excessively applied in the opposite twisting direction to inflate the twisted electric cable or wire strand. This is to prevent the quality of the electrical cable is to be reduced.

In addition, the transmission line installation according to the embodiment of the present invention is configured to arrange a plurality of guide rollers on the concentric circles or different concentric circles of the support frame, the electric cable passed through the gold by greatly increasing its radius of curvature than the conventional gold car When the height difference or direction between these towers is bent, there is no excessive bending between the entry and exit of the car, which greatly reduces the tension of pulling the electric cable. Therefore, even when passing through the connecting bracket connecting the electrical cable, the impact on the connecting bracket is minimized to reduce the damage of the electrical cable.

In addition, although the gold car according to the present invention employs a plurality of guide rollers, the gold car is manufactured using light metal materials having excellent durability and rigidity and light weight, so that the weight of the car is reduced by 20% or more. In addition to improving workability during the installation and dismantling of the car, it also increases work efficiency and reduces the occurrence of various safety accidents.

1 is an external perspective view of a conventional car in use,

Figure 2 is a state of use of the conventional car of Figure 1,

3 is an external perspective view of a car according to an embodiment of the present invention;

Figure 4 is an exploded perspective view of the gold of Figure 2,

5 is a cross-sectional design of the car according to an embodiment of the present invention,

6 and 7 are an external perspective view of a two-wire gold car configured to be used to deliver an electric cable of two or more wires,

FIG. 8 is a longitudinal sectional view of the vehicle of FIG. 7;

9 and 10 is a state diagram used in the present invention according to the present invention.

※ Brief description of symbols for the main parts of the drawings

5, 5 ′, 5 ″: 10, 10a: support frame

12: fastener 14: curved portion

15, 15a: through hole 16, 20, 20a: guide roller

22: guide groove 30: fixed guide stand

32: fastener 40: fastening means

50: electric cable (or wire) 60: steel tower

Claims (4)

Support frame made of a curved surface of a predetermined length; A plurality of guide rollers rotatably installed on the support frame, the guide grooves having a predetermined depth in the circumferential direction of the outer circumference thereof to enable the smooth movement of the electric cable spread outward; One end is fixed to the support frame, the fixing guide is provided with a fastening means for fixing the support frame to the fixture on the other end protruding a predetermined length to the outside of the curved portion of the support frame; This week. The method of claim 1, The guide rollers located at the center of the plurality of guide rollers and the guide rollers installed at both sides are installed to have different radii of curvature at the same reference point or are installed on different concentric circles of the support frame to have the same radius at different reference points. Gold car for the transmission line installation, characterized in that consisting of a structure. The method according to claim 1 or 2, The support frame is composed of one or more facing each other, A power line for installing a transmission line, characterized in that a plurality of rows of guide rollers are installed between two support frames facing each other so that twisted pair work can be simultaneously performed on an electric cable of a double wire. The method of claim 3, The left and right sides of the plurality of support frames are fixedly fixed to one end of the fixed guide stand of each length separated from each other, the other end of each of the fixed guide stand protruding to the upper end of the support frame fastening portion capable of separate coupling between the two fixing guide Equipped, Power line installation gold car, characterized in that the support frame is integrally coupled to the plurality of support frames are configured to be installed in the interval maintaining member to be firmly coupled to each other while maintaining a constant interval between the two support frames.
KR1020070121835A 2007-11-28 2007-11-28 A roller device for extending of the electrical cable KR20090055095A (en)

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KR1020070121835A KR20090055095A (en) 2007-11-28 2007-11-28 A roller device for extending of the electrical cable

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100953688B1 (en) * 2009-12-10 2010-04-19 지승건설(주) The wire guide apparatus for string on transmission line, and method for wire string on transmission line using the wire guide apparatus
KR101017568B1 (en) * 2009-07-22 2011-02-28 삼아산업 주식회사 Sheave for Transmission Cable
CN103401176A (en) * 2013-06-06 2013-11-20 蒲召文 Energy-saving general lead laying pulley
CN104242143A (en) * 2013-06-07 2014-12-24 张书豪 Self-adaptive wire-releasing pulley
CN104617519A (en) * 2015-02-15 2015-05-13 贵州送变电工程公司 Flexible paying-off tackle
CN105932627A (en) * 2016-04-27 2016-09-07 浙江至简电气科技有限公司 Slide-type anti-string-fall wire clamp
CN113067285A (en) * 2021-03-26 2021-07-02 中国电建集团福建工程有限公司 Pay-off support for carbon fiber composite core wire and construction method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101017568B1 (en) * 2009-07-22 2011-02-28 삼아산업 주식회사 Sheave for Transmission Cable
KR100953688B1 (en) * 2009-12-10 2010-04-19 지승건설(주) The wire guide apparatus for string on transmission line, and method for wire string on transmission line using the wire guide apparatus
CN103401176A (en) * 2013-06-06 2013-11-20 蒲召文 Energy-saving general lead laying pulley
CN104242143A (en) * 2013-06-07 2014-12-24 张书豪 Self-adaptive wire-releasing pulley
CN104617519A (en) * 2015-02-15 2015-05-13 贵州送变电工程公司 Flexible paying-off tackle
CN104617519B (en) * 2015-02-15 2017-03-29 贵州送变电工程公司 Flexible releasing pulley
CN105932627A (en) * 2016-04-27 2016-09-07 浙江至简电气科技有限公司 Slide-type anti-string-fall wire clamp
CN113067285A (en) * 2021-03-26 2021-07-02 中国电建集团福建工程有限公司 Pay-off support for carbon fiber composite core wire and construction method
CN113067285B (en) * 2021-03-26 2022-04-15 中国电建集团福建工程有限公司 Pay-off support for carbon fiber composite core wire and construction method

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