KR101784491B1 - Tension measuring apparatus of electrical cable - Google Patents

Tension measuring apparatus of electrical cable Download PDF

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Publication number
KR101784491B1
KR101784491B1 KR1020150181990A KR20150181990A KR101784491B1 KR 101784491 B1 KR101784491 B1 KR 101784491B1 KR 1020150181990 A KR1020150181990 A KR 1020150181990A KR 20150181990 A KR20150181990 A KR 20150181990A KR 101784491 B1 KR101784491 B1 KR 101784491B1
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KR
South Korea
Prior art keywords
cable
fixing means
fixing
tension
case
Prior art date
Application number
KR1020150181990A
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Korean (ko)
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KR20170073276A (en
Inventor
유영석
Original Assignee
(주)스케일트론
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Priority to KR1020150181990A priority Critical patent/KR101784491B1/en
Publication of KR20170073276A publication Critical patent/KR20170073276A/en
Application granted granted Critical
Publication of KR101784491B1 publication Critical patent/KR101784491B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/103—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using sensors fixed at one end of the flexible member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0028—Force sensors associated with force applying means
    • G01L5/0033—Force sensors associated with force applying means applying a pulling force
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/047—Specific indicating or recording arrangements, e.g. for remote indication, for indicating overload or underload
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The present invention relates to an apparatus for measuring the tension of an electric cable widely used for various electric and electronic equipments and products including a high voltage cable, (100) fixedly supporting one end of the cable; A cable other end fixing means (200) provided opposite to the cable one end fixing means and fixed to support the other end of the electric cable; A moving means (300) provided to move the cable other end fixing means forward / backward; Cable tension measuring means (400) connected to the other cable fixing means of the both end cable fixing means and adapted to measure the tension of the electric cable; And a display unit 500 connected to the cable tension measuring unit and displaying a measured value measured by the cable tension measuring unit.

Description

[0001] Tension measuring apparatus of electrical cable [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring the tension of an electric cable widely used for various electric and electronic equipments and products including a high voltage cable.

Generally, there are various kinds of electric cables ranging from high-voltage power cables to various electric and electronic equipment and electric cables used in general household appliances. They are widely used for supplying voltage and current, and electric cables are made of materials and kinds (Resistivity) in accordance with the resistance value (resistance), and a current loss (loss) occurs.

Therefore, it is possible to estimate the power loss by knowing the resistance and specific resistance of the cable, and the thickness of the electric cable to be used can be selected according to the usage purpose and the capacity of the electric current.

A conventional method for measuring resistance and specific resistance of an electric cable includes supporting both sides of an electric cable so that an electric cable to be measured has a predetermined tension, positioning an electric cable in a V-shaped electrode or a pin-shaped electrode, The length of the point to be measured is measured using a ruler or the like, and then the voltage is measured at both ends of the measurement point in a state where current is supplied to the electric cable, and converted into a resistance value.

The above measurement method is an inaccurate method for measuring the twisted wire because the shape of the voltage measuring electrode is not suitable. Since there are various kinds of electric cables according to their thicknesses (diameters), a dedicated measuring device is required to quickly and accurately measure the resistance and specific resistance of various electric cables.

In the prior art, the apparatus and method for automatically measuring the resistance of a connector cable (10-1997-0075582) are devices for automatically measuring the resistance of a cable. Advantageously, the resistance of a plurality of connector cables can be automatically measured However, since the cable to be measured is limited to a connector cable for communication and the shape of the probe is a pin shape, the problem of inaccuracy with respect to the resistance measurement value of the twisted-pair cable described above can not be solved and a function And there is a disadvantage that there is not.

In addition, even in the case of a meter probe (20-2008-0003861) for measuring a wire capable of piercing a wire, it is advantageous to measure various kinds of cables. However, since the shape of the probe is a pin shape, There is a disadvantage that not only the reproducibility of the measurement is present but also the fixed support of the cable to be measured and the tension adjusting function are not provided.

Korea Patent No. 10-1202723 Korean Patent Publication No. 10-1999-0064682 Korean Patent Publication No. 10-2002-0061355

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems,

First, the tension of the electric cable can be measured easily and easily, accurately, and numerically,

Secondly, it is possible to quickly check whether the tension of the electric cable is suitable for the intended use,

Third, it is an object of the present invention to provide an apparatus for measuring the tension of an electric cable in which an electric cable for various purposes can be measured with a single device regardless of the application.

In order to achieve the above object, the present invention provides a structure for fixedly supporting one end of a tension measurement target electric cable (C) on one side of a case (600), the end of which is bent A fixing bracket 110 and a moving bracket 120 are provided to grip the end portion of the electric cable C and the fixing bracket and the moving bracket are provided with screw bolts 130 through which the both side fixing brackets A cable side end fixing means 100 provided with an elastic member 140 between the moving brackets; And the other end of the electric cable is fixed on the other side of the case 600 so as to face the cable side end fixing means. The fixing member 210 is formed on the upper surface of the fixing body 210 with gear teeth Shaped or "+" -shaped (or " + ") pinion for rotating the pinion is provided at an upper end of the shaft, eccentrically and axially via a shaft 230, A pinion rotating hole 240 is formed on the side surface of the stationary body to prevent the stationary body from moving and sliding with the rail 650 formed on both sides of the case 600, 250) is installed on the other end of the cable; A moving means (300) provided to move the cable other end fixing means forward / backward; Cable tension measuring means (400) connected to the other cable fixing means of the both end cable fixing means and adapted to measure the tension of the electric cable; A number indicating unit 510 for indicating the measured value measured by the cable tension measuring unit connected to the cable tension measuring unit as a number; and a number indicating unit 510 for measuring the cable tension measured by the cable tension measuring unit, &Quot;" and "x" The cable end portion fixing means 100 and the cable end portion fixing means 200, the moving means 300, the cable tension measuring means 400 and the display portion 500 are installed inside and the cable side end fixing means 100, A case body 601 having upper and lower support panels 610 and 620 disposed on the front and rear sides of the case body 601 and a hinge unit 601 hinged to one side to open and close the upper opening of the case body 601, , The cable end portion fixing means and the cable end portion fixing means and the display portion 500 are exposed to the outside and the surface of the fixing body 210 of the cable other end fixing means is guided in a rectangular shape And a case cover 600 having a through hole 602a formed therein and the supporting panels 610 and 620 are provided with an area in which the other end fixing means of the cable is set by a malfunction of the moving means 300 And touch sensors 630 and 640 for shutting off the power supply to the moving means when the sensors are touched.

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As described above, the tension measuring device for an electric cable of the present invention having the above-described configuration can easily measure the tension of the electric cable easily and accurately and can confirm it with a number. Also, It is possible to quickly determine whether the electric cable is suitable or not, and it is possible to measure various types of electric cable tensions with one device regardless of the use purpose of the electric cable.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a perspective view of an apparatus for measuring tension of an electric cable according to the present invention,
FIG. 1B is a perspective view of a tension measuring device for an electric cable according to the present invention,
FIG. 2 is a cross-sectional view of a tension measuring device for an electric cable according to the present invention,
3 is an exploded perspective view of a cable end portion fixing means in the tension measuring device of an electric cable according to the present invention,
Fig. 4 is an exploded perspective view of the other end of cable fixing means in the tension measuring device of the electric cable of the present invention,
5 is an exploded perspective view of a moving means in an apparatus for measuring tension of an electric cable according to the present invention.

The electric cable tension measuring apparatus of the present invention comprises a cable one-side end fixing means 100 for fixing one end of a tension measurement subject electric cable C to one side of the inside of a case 600 as shown in Figs. 1B and 2, So that one end of the tension measuring subject electric cable C is firmly and stably fixed and supported.

One end of the electric cable (C) fixed to the one end fixing means (100) of the cable forms a knot so as to be supported without coming out from the one end fixing means (100) of the cable when a tension is generated in the electric cable Or a fixing member may be provided.

3, a fixing bracket 110 bent at the ends to face each other and holding an end of the electric cable C, and a movable bracket 110 The fixing bracket 110 and the moving bracket 120 are provided with a screw bolt 130 through which the fixing bolts 110 and the moving bracket 120 of the screw bolt 130 are inserted, And an elastic member 140 is provided between the elastic members 140 and 140.

The reason for bending the ends of the fixing bracket 110 and the moving bracket 120 in the direction opposite to each other in the cable one end fixing means 100 having the above configuration is that the one end of the electric cable C is secured So that it can be firmly fixedly supported.

The fixing bolt 110 and the moving bracket 120 are inserted through the screw bolt 130 so that one end of the electric cable C is positioned between the fixing bracket 110 and the moving bracket 120 The head of the rear screw bolt 130 is rotated to move the moving bracket 120 toward the fixing bracket 110 so that one end of the electric cable C is securely and firmly fixed.

When one end of the electric cable C is to be separated from the fixing bracket 110 and the moving bracket 120 after the tension measurement test of the electric cable C is finished, When the head portion of the screw bolt 130 is rotated, the moving bracket 120 is separated from the fixing bracket 110 and the electric cable C is separated.

An elastic member 140 is provided between the fixing bracket 110 and the moving bracket 120 of the screw bolt 130. This is because the fixing bracket 110 and the moving bracket 120 are separated from each other While the elastic member 140 is compressed and restored according to the moving direction of the moving bracket 120 to control the movement of the moving bracket 120. The elastic member 140 is a coil spring .

The other end fixing means 200 is provided on the other side of the case 600 in the lateral direction so as to face the cable side end fixing means 100 and fixes the other end of the electric cable C, So that the other end of the electric cable (C) to be tensioned is firmly and stably supported.

4, the pinion 220 is fixed on the upper surface of the fixed body 210 so as to keep the pinion 220 straight in the transverse direction, Shaped or "+" shaped pinion rotation hole 240 for rotating the pinion 220 is formed at an upper end of the shaft 230, A movable body 250 is provided on the side surface of the fixing body 210 to prevent the flow of the fixing body 210 and to slide forward or rearward by being coupled with the rail 650 formed on both sides of the case 600 .

In the other cable end fixing means 200 having the above configuration, the two pinions 220 are eccentrically and rotatably installed on the upper surface of the fixing body 210 via the shaft 230 so as to maintain a straight line in the lateral direction After the other end of the electric cable C is positioned between the two pinions 220, the hand tool is coupled to the pinion rotation hole 240 of the "-" or "+" shape, So that the pinion 220 is rotated most closely to securely support the other end of the electric cable C securely and firmly.

When the other end of the electric cable C is to be separated from the two pinions 220 after the tension measurement test of the electric cable C is finished, the two pinions 220 are fixed in the opposite direction to fix the electric cable C, The electric wire C is disconnected while the two pinions 220 are opened.

The reason for fixing the other end of the electric cable C to the pinion 220 is to stably support the other end of the electric cable C by the gear teeth.

A moving body 250 is provided on the side surface of the fixing body 210 to prevent the fixing body 210 from flowing and sliding with the rail 650 formed on both sides of the case 600, The reason for this is that when the fixing member 210 is slid forward and backward by the moving means 300 described below, the sliding movement of the fixing member 210 is accurately performed without the movement of the fixing member 210.

As shown in FIG. 2, support panels 610 and 620 are provided on the front and rear sides of the inner cable side end fixing part 200 of the case 600, When the other end fixing unit 200 of the cable deviates from the predetermined area due to a malfunction, the respective touch sensors 630 and 640 for stopping the operation of the moving unit 300 by cutting off the power supply to the moving unit 300 are installed The movement of the other end fixing means 200 of the cable is reversed only in the range of the predetermined space.

The moving means 300 of the present invention serves to forward / backward the other end fixing means 200 of the cable, wherein a normal / reverse deceleration motor 310 is fixed to one side of the case 600, The rotation of the forward / reverse deceleration motor 310 is connected to the axis of the forward / reverse deceleration motor 310 via the connecting member 320, and the forward rotation passes through the lower portion of the cable other end fixing means 200, And a screw shaft 330 installed therein.

The reason why the screw shaft 330 is inserted through the lower portion of the other cable end fixing means 200, that is, the fixed body 210, in the moving means 300 having the above- The tension of the electric cable C is measured while the screw shaft 330 is rotated and the other cable end fixing means 200 moves forward or backward in accordance with the rotation direction of the screw shaft 330, So that the cable C is separated from the cable end side fixing means 100 and the cable side end fixing means 200. [

The cable tension measuring means 400 is connected to the cable fixing means 200 on the other side of the both end cable fixing means to measure the tension of the electric cable C. The embodiment measures the tension of the cable The load cell 410 measures the pulling force applied to the load cell 410.

In addition, the cable tension measuring unit 400 is connected to the display unit 500 and displays the measured values measured by the cable tension measuring unit 400 in numerical form. The embodiment of the present invention, as shown in FIGS. 1A and 1B, Quot ;, "X ", " X ", " X ", " The tension of the electric cable C can be precisely measured by the number and the measured value can be easily and easily confirmed whether it is within the reference value range or the reference value range is exceeded or exceeded There are advantages to be able to.

In addition, a switch for supplying and blocking electricity to and from the display unit 500 and the moving unit 300 is provided at a position adjacent to the display unit 500. The symbols " ", " It is preferable that the portion 510 is caused to emit light by the LED.

In addition, a plurality of control switches are provided in the vicinity of the display unit 500 for controlling the tension measuring apparatus of the present invention. The tension reference value is set in advance. Depending on the size and type of the electric cable, Is preferably used by setting the reference value.
As shown in FIGS. 1A and 1B, the case 600 includes a case body 601 having a rectangular opening and an open upper side, a case 601 hinged to one side of the case body 601 to open and close the upper opening, And a lid 602.
The case body 601 is provided with the cable side end fixing means 100, the cable other side end fixing means 200, the moving means 300, the cable tension measuring means 400 and the display unit 500, The support panels 610 and 620 are respectively installed in front of and behind the other end fixing unit 200 of the cable.
When the upper opening of the case body 601 is opened or closed, the case cover 602 is provided to expose the cable one end fixing means, the cable other end fixing means, and the display unit 500 to the outside, A through hole 602a is formed in a rectangular shape so as to guide the fixing body 210 of the cable other end fixing means when the fixing body 210 reciprocates.
As described above, in the case 600, parts which are not required to be exposed are provided inside the case body 601, and only the means for fixing the electric cable C and the means for informing the operator of the measurement value of the tension are exposed The operator can conveniently and easily perform the tension measuring operation of the electric cable.

As described in the above effect, the tension measuring device of the electric cable of the present invention as described above can easily measure the tension of the electric cable easily and accurately, and can confirm it by the number. Also, And it is possible to measure various types of electric cable tension with one device regardless of the use of the electric cable.

100: Cable end portion fixing means 110: Fixing bracket
120: moving bracket 130: screw bolt
140: elastic member 200: cable other end fixing means
210: Fixture 220: Pinion
230: Axis 240: Pinion rotation hole
250: Moving object 300: Moving means
310: normal / reverse deceleration motor 320: connecting member
330: Screw shaft 400: Cable tension measuring means
410: load cell 500: display unit
510: numeral notation 520: "o "," x "
600: Case 601: Case body
602: Case cover 602a: Through hole
610, 620: Support panel 630, 640: Touch sensor
650: Rail
C: Electric cable

Claims (7)

A fixing bracket 110 which is provided to fix one end of the tension measurement subject electric cable C to one side of the case 600 and which is bent so that the ends thereof face each other to grip the end of the electric cable C, The fixing bracket and the moving bracket are provided with a screw bolt (130) through which a movable bracket (120) is provided. An elastic member (140) is provided between both side fixing brackets of the screw bolt and the moving bracket, Fixing means (100);
And the other end of the electric cable is fixed on the other side of the case 600 so as to face the cable side end fixing means. The fixing member 210 is formed on the upper surface of the fixing body 210 with gear teeth Shaped or "+" -shaped (or " + ") pinion for rotating the pinion is provided at an upper end of the shaft, eccentrically and axially via a shaft 230, A pinion rotating hole 240 is formed on the side surface of the stationary body to prevent the stationary body from moving and sliding with the rail 650 formed on both sides of the case 600, 250) is installed on the other end of the cable;
A moving means (300) provided to move the cable other end fixing means forward / backward;
Cable tension measuring means (400) connected to the other cable fixing means of the both end cable fixing means and adapted to measure the tension of the electric cable;
A number indicating unit 510 for indicating the measured value measured by the cable tension measuring unit connected to the cable tension measuring unit as a number; and a number indicating unit 510 for measuring the cable tension measured by the cable tension measuring unit, &Quot;" and "x"
The cable end portion fixing means 100 and the cable end portion fixing means 200, the moving means 300, the cable tension measuring means 400 and the display portion 500 are installed inside and the cable side end fixing means 100, A case body 601 having upper and lower support panels 610 and 620 disposed on the front and rear sides of the case body 601 and a hinge unit 601 hinged to one side to open and close the upper opening of the case body 601, , The cable end portion fixing means and the cable end portion fixing means and the display portion 500 are exposed to the outside and the surface of the fixing body 210 of the cable other end fixing means is guided in a rectangular shape And a case 600 composed of a case cover 602 having a through hole 602a formed therein,
The touch sensors 630 and 640, which cut off the power supply to the moving means when the sensors are touched by the sensors outside the area where the other end fixing means of the cable is misaligned due to the malfunction of the moving means 300, And the tensile strength of the electric cable is measured.
delete delete The method according to claim 1,
The moving means 300 is provided with a forward / reverse deceleration motor 310 fixed to one side of the case and connected to the shaft of the forward / reverse deceleration motor via a connecting member 320, And a screw shaft (330) connected to the lower portion of the other side of the other end of the cable, and connected to the lower end of the cable. The method according to claim 1,
The cable tension measuring means 400 includes a load cell 410 for measuring a pulling force applied to one end of cable fixing means, which is connected to the rear of one cable end fixing means for fixing one end of the electric cable, And the tensile force of the electric cable is measured. delete delete
KR1020150181990A 2015-12-18 2015-12-18 Tension measuring apparatus of electrical cable KR101784491B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150181990A KR101784491B1 (en) 2015-12-18 2015-12-18 Tension measuring apparatus of electrical cable

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Application Number Priority Date Filing Date Title
KR1020150181990A KR101784491B1 (en) 2015-12-18 2015-12-18 Tension measuring apparatus of electrical cable

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KR20170073276A KR20170073276A (en) 2017-06-28
KR101784491B1 true KR101784491B1 (en) 2017-10-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220170264A (en) 2021-06-22 2022-12-29 황순우 Load cell system for measuring subsea cable linear machine cable tension and methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000046709A (en) * 1998-07-23 2000-02-18 Sumitomo Wiring Syst Ltd Tensile-testing device
CN2600806Y (en) * 2001-03-28 2004-01-21 顺德市顺达电脑厂有限公司 Chuck unit of terminal drawing force investigating equipment
CN104515702A (en) 2013-09-27 2015-04-15 青岛鸿森重工有限公司 Novel clamping device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000046709A (en) * 1998-07-23 2000-02-18 Sumitomo Wiring Syst Ltd Tensile-testing device
CN2600806Y (en) * 2001-03-28 2004-01-21 顺德市顺达电脑厂有限公司 Chuck unit of terminal drawing force investigating equipment
CN104515702A (en) 2013-09-27 2015-04-15 青岛鸿森重工有限公司 Novel clamping device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220170264A (en) 2021-06-22 2022-12-29 황순우 Load cell system for measuring subsea cable linear machine cable tension and methods

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