JP3054077B2 - Wire connection resistance measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resistance measuring apparatus for measuring the electric resistance of a connection portion of an electric wire compressed and connected by a sleeve while running on an electric wire such as a feeder wire of a train line. .

[0002]

2. Description of the Related Art Conventionally, when measuring the electric resistance of a connection portion of an overhead electric wire such as a feeder line of a railway line, an inspection rod is inserted from the ground, and a contact is brought into contact with both sides of the connection portion. A method has been adopted in which electricity is supplied between the terminals and the electric resistance is measured by a measuring instrument.

[0003]

In the above-mentioned conventional measuring method, the work is inefficient, and an accurate inspection cannot be performed when oxides or dirt adhere to the surface of the electric wire. There is a problem that polishing is difficult, either by climbing to a high place using a ladder or by using a working rod.

Accordingly, an object of the present invention is to provide a resistance measuring device for an electric wire connection part which can freely travel on an electric wire and automatically measure the resistance of the electric wire at a predetermined position. It is an issue.

[0005]

In the present invention, in order to solve the above-mentioned problems, the first and second mechanisms 2, 3 are moved on the electric wire W by moving means such as a traction device 4. , The first and second mechanism units 2 and 3 are arranged separately on both sides of the connecting portion W1 of the electric wire W, and the contact means 6 of the first and second mechanism units 2 and 3 is brought into contact with the electric wire W. The electric resistance is measured and displayed by the measuring device main body 7 through the connection portion W1 by applying a current to each other. In addition, the first and second mechanism sections 2 and 3 are provided with a wire polishing means 8 for polishing the surface of the wire W with which the contact means 6 comes in contact at a predetermined interval on one side of the contact means 6. After operating the electric wire polishing means 8 to polish the surface of the electric wire W, the moving means 4 is operated to arrange the contact means 6 at a position corresponding to the polished surface of the electric wire W. By operating the measuring device main body 7, the connection portion W of the electric wire W
Each unit is controlled by the control means 5 so as to measure the electric resistance of the first device.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a resistance measuring device, FIG. 2 is a front view of first and second mechanism parts, FIG. 3 is a plan view of first and second mechanism parts, and FIG. 4 is an arrow IV- in FIG. FIG. 5 is a front view of the polishing means as seen from the direction of arrows V-V in FIG. 2, and FIG. 6 is an arrow in FIG.
FIG. 6 is a front view of the polishing means viewed from a VI-VI direction.

In FIG. 1, a resistance measuring device 1 includes an electric wire W
First and second mechanism units 2 and 3 capable of traveling on the upper side, towing device 4 as a moving means for towing the first and second mechanism units on electric wire W, and a control device for controlling the operation of each unit of the device 5 is provided.

The first and second mechanism sections 2 and 3 have the same structure and can be located on both sides of the connecting portion of the electric wire W apart from each other. In FIG. 1, it is assumed that a connection portion W1 of the electric wire is located between the first mechanism portion 2 and the second mechanism portion 3.
The traction device 4 pulls the first and second mechanism units 2 and 3 and runs on the electric wire W by motor driving.

The first and second mechanism sections 2 and 3 are provided with contact means 6 for contacting with and separating from the electric wire W in order to mutually conduct electricity through the connecting portion W1 of the electric wire W. 6, between contact means of the first mechanism 2 and the second mechanism 3,
The measuring device main body 7, which measures, displays and stores the electric resistance of the connecting portion W1 by the current and voltage flowing through the connecting portion W1 of the electric wire to the controller 6, is connected to the control device 5 and is placed on the ground.

Each of the first and second mechanism sections 2 and 3 has an electric wire polishing means 8 for polishing the surface of the electric wire with which the contact means 6 contacts. The wire polishing means 8 is provided at a predetermined interval on one side of the contact means 8.

At a predetermined position on the electric wire W, the control device 5 operates the electric wire polishing means 8 to polish the surface of the electric wire W, and then operates the traction device 4 so as to correspond to the polished surface of the electric wire W. The contact means 6 is disposed at a position where the electric wire is connected, and then the contact means 6 and the measuring device main body 7 are operated to connect the electric wire connection portion W1.
Each part is controlled so as to measure the electric resistance.

The first mechanism 2 and the second mechanism 3 have a frame 10 provided with a running roller 9 that rolls on the electric wire W. The contact means 6 is provided on the frame 10, and is provided with a contact member 11 that can freely contact and separate from the electric wire W, and a contact member drive motor 12 that causes the contact member 11 to contact and separate from the electric wire W. Is provided. The electric wire polishing means 8 is provided on the frame 10 and is provided so as to contact or separate from the contact portion corresponding to the contact portion of the electric wire W with the contact member 11, and to perform a polishing operation in a contact state. The polishing brush 13 is provided with a driving motor 14 for moving the polishing brush 13 toward and away from the electric wire, and a polishing motor 15 for polishing the polishing brush 13.

As shown in FIGS. 2 and 4, the contact member 11 of the contact means 6 is a pair of holding members 16a, 16b pivotally supported so as to be able to open and close the wire W so as to be able to hold and release the electric wire W.
The pair of gripping members 16a and 16b are configured to be opened and closed by the contact member drive motor 12. That is, the pair of gripping members 16a and 16b are pivotally supported by the pins 17 at the center of the upper part, and pivotally supported by the lower ends of the suspension links 19 by the pins 18 on both upper sides.
In the state shown in FIG. The upper end of the suspension link 19 is a pin 21
Is pivotally supported by the lifting block 22. The elevating block 22 is engaged with a linear guide 23 fixed to the side surface of the vertical support portion 10a of the frame so as to extend in the vertical direction so as to be able to move up and down. The lifting block 22 includes a nut 24
The screw rod 25 vertically supported by the vertical support portion 10a in parallel with the linear guide 23 penetrates the nut 24. Accordingly, the vertical movement of the screw bar 25 causes the lifting block 22 to move up and down along the linear guide 23. The screw rod 25 has gears 26, 2 at the upper end.
7 and is supported by bearings 28 and 29 at upper and lower portions, respectively. A stopper 30 is fixed below the bearing 29, and the upper end of the center of the gripping members 16a, 16b which comes up comes into contact with the stopper 30, so that the space between the two gripping members 16a, 16b is opened. When the spring 20 passes through the center of the pin 17 during the opening, the spring 20 exceeds the dead point, and this time, the gap between the gripping members 16a and 16b is urged in the opening direction. And even if it descends after that, the holding member 1
The open state is maintained between 6a and 16b. Gripping member 16
When the suspending link 19 pushes down the gripping members 16a and 16b, the gripping members 16a and 16b close so that the wire W is sandwiched therebetween.
When the spring 20 passes through the center of the pin 17 on the way, it exceeds the dead center, and in this case, urges the gripping members 16a and 16b in the closing direction to press the wire W against both side surfaces.

As shown in FIGS. 2 and 5, the polishing means 8 comprises:
It is provided on the vertical support portion 10b of the frame 10.
The polishing brush 13 includes a pair of left and right handle portions 31, 31;
It has a connecting member 32 for connecting the upper portions of the handle portions 31 substantially in a gate shape, and a gold brush 33 planted on the inner surface of the handle portion 31 so as to face each other. A pair of handle parts 31 and 3
The pins 1 are supported by pins 34 extending horizontally from the connecting member 32 so that the distance between the pins 1 can be changed, and are urged by a spring 35 in a direction approaching each other. One end of a pivot pin 36 penetrating the center of the coupling member 32 is pivotally supported by a link 37 and is coupled to the polishing operation motor 15 via the link 38. A roller 39 is attached to the other end of the pivot pin 36, and this is a guide groove 40 a of the guide member 40.
Is movably engaged with. The guide member 40 has an arc-shaped guide groove 40 curved upward on the vertical surface side, and is fixed on the vertical surface of the elevating member 41 on the opposite surface side. The elevating member 41 is vertically vertically movably supported along a linear guide 42 fixed so as to extend vertically to the side surface of the vertical support portion 10b of the frame, and is pivotally supported by a lever 44 with a pin 43 at the upper part. The other end of the lever 44 is connected to a motor 14 for raising and lowering the polishing brush (for moving the wire W into and out of the wire W). Therefore, the polishing brush 13
During the movement of the apparatus, the lever 44 is lifted upward together with the elevating member 41 and separated from the electric wire W. When the apparatus is stopped at a predetermined position, the electric wire W is pushed down together with the elevating member 41 and is moved between the gold brushes 33 and 33. Can be sandwiched. Further, in a state where the electric wire W is sandwiched between the gold brushes 33, 33, the motor 15 and the links 38, 37 rotate right and left around the electric wire W along the guide grooves 40a by rotation of the gold brushes 33, 33. At 33, the surface of the electric wire W is polished.

Thus, at a predetermined position on the electric wire W,
First, the electric wire polishing means 8 is operated to lower the polishing brush 13, and the electric brush W is polished by sandwiching the electric wire W between the gold brushes 33, 33. Leave. Next, the traction device 4 moves the first and second mechanism units 2 and 3 by a distance corresponding to the distance between the polishing brush 13 and the contact member 11, and arranges the contact member 11 at a position corresponding to the polished wire W surface. And stop. Next, the contact member 11 is lowered to close the gap between the gripping members 16a and 16b so as to sandwich the polished portion of the electric wire W, and a current can be supplied. Next, the contact member 11 of the first mechanism 2 and the second mechanism 3
A current is applied to the contact member 11 through the electric wire connection portion W1, and the electric resistance of the connection portion W1 is measured by the measuring device main body 7 using the current and the voltage, and is displayed or stored.

[0016]

As described above, in the present invention, the first
And moving the second mechanism units 2 and 3 on the electric wire W by a moving means such as the traction device 4, and moving the first and second mechanism units 2 and 3 to both sides of the connecting portion W1 of the electric wire W. Contact means 6 provided in the first and second mechanism units 2 and 3
Was brought into contact with the electric wire W, and electricity was supplied to each other through the connecting portion W1 to measure and display the electric resistance of the connecting portion W1 of the electric wire by the measuring device main body 7. In addition, the first and second mechanism sections 2 and 3 are provided with a wire polishing means 8 for polishing the surface of the wire W with which the contact means 6 comes in contact at a predetermined interval on one side of the contact means 6. After operating the electric wire polishing means 8 to polish the surface of the electric wire W, the moving means 4 is operated to arrange the contact means 6 at a position corresponding to the polished surface of the electric wire W. Since the control unit 5 controls each unit so as to measure the electric resistance of the connection portion W1 of the electric wire W by operating the measuring device main body 7, the electric wire runs freely on the electric wire, and the electric wire is automatically set at a predetermined position. It is possible to provide an electric wire connection part resistance measuring device capable of performing surface polishing and resistance measurement.

[Brief description of the drawings]

FIG. 1 is a front view of a resistance measuring device.

FIG. 2 is a front view of first and second mechanism units.

FIG. 3 is a plan view of first and second mechanism units.

FIG. 4 is a front view of the contact means as seen from the direction of arrows IV-IV in FIG. 2;

FIG. 5 is a front view of the polishing means seen from the direction of arrows VV in FIG. 2;

FIG. 6 is a sectional view of the polishing means as seen from the direction of arrows VI-VI in FIG. 2;

[Explanation of symbols]

 2 1st mechanism part 3 2nd mechanism part 4 Traction device (moving means) 6 Contact means 7 Measuring device main body 8 Wire polishing means 5 Control device (Control means) 11 Contact member 12 Contact member drive motor 13 Polishing brush 14 Polishing Motor for brush contact / separation operation 15 Motor for polishing operation W Electric wire W1 Connection

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akira Ichige 38-8 Hikarimachi, Kokubunji-shi, Tokyo Inside the Railway Technical Research Institute (72) Inventor Yuichi Iwama 6-5 Minamishinagawa, Shinagawa-ku, Tokyo No. 19 Sanwa Tekki Co., Ltd. (72) Inventor Toshiaki Chiyonobu 5-19 Minamishinagawa, Shinagawa-ku, Tokyo 6-19 Sanwa Tekki Co., Ltd. (56) References JP-A-56-43564 (JP, A (Japanese) Shokai Sho 53-108377 (JP, U) Shokai Sho 48-28478 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01R 27/00 H02G 1/02 323

Claims (4)

(57) [Claims] 1. A contact means which is located on both sides of a connecting portion of an electric wire, is movable in at least one direction on the electric wire, and is capable of contacting with and detaching from the electric wire to conduct electricity between the electric wire through the connecting portion of the electric wire. A first and a second mechanism provided, and a current flowing through a connection of the wire between the contact means of the first mechanism and the second mechanism, measuring an electric resistance of the connection of the wire, A measuring device main body to be displayed, a moving unit for moving the first and second mechanism units, an operation of a contact unit between the first mechanism unit and the second mechanism unit, an operation of the measuring device main unit and the movement Control means for controlling the operation of the means, wherein the first and second mechanisms are provided with a wire polishing means for polishing the surface of the wire contacted by the contact means on one side of the contact means. At a predetermined interval, wherein the control unit is configured to polish the electric wire. After the step is operated to polish the surface of the electric wire, the moving means is operated to arrange the contact means at a position corresponding to the polished electric wire surface, and then the contact means and the measuring device main body are operated. A device for measuring the resistance of an electric wire connection part, characterized in that it is configured to control each part so as to measure the electric resistance of the electric wire connection part. 2. The first mechanism unit and the second mechanism unit each include a frame provided with a traveling roller that rolls on an electric wire, and the contact unit is provided on the frame, and A contact member capable of contacting and detaching, and a contact member drive motor for bringing the contact member into contact with and separating from the electric wire; and the electric wire polishing means is provided on a frame, and the electric wire contact member is provided. A polishing brush capable of contacting, separating and polishing operations with respect to the contacting portion corresponding to a contacting portion, a contacting / separating drive motor for bringing the polishing brush into and out of contact with the electric wire, and a driving motor; A polishing motor for performing a polishing operation of the contacting polishing brush, wherein the moving means pulls the first mechanism section and the second mechanism section and self-propelled on an electric wire by driving a motor. 2. The device of claim 1, wherein the device comprises a device. Resistance measuring device for wire connection. 3. The contact means has a pair of holding members capable of holding and opening the electric wire and capable of opening and closing each other. The pair of holding members can be opened and closed by the contact member drive motor. The resistance measuring device for an electric wire connection according to claim 2, wherein the resistance measuring device is configured. 4. The polishing means is provided on the frame so as to be vertically movable up and down, and is lifted and lowered by the contact / separation drive motor connected via a transmission mechanism. The polishing brush further includes a guide member having an upwardly curved guide groove on a vertical surface, wherein the polishing brush connects a pair of left and right opposing handle portions and a substantially gate-shaped connection between upper portions of the handle portions. A member and a gold brush implanted opposite to the inner surface of the handle, and one end of a pivot pin passing through the center of the connecting member is movably engaged with the guide groove of the guide member. By being combined, the polishing member is swingably supported by the guide member along the guide groove, and is configured to swing by the polishing motor connected to the pivot pin via a transmission mechanism. Put the wire between the brushes The raising and lowering member is moved up and down between a lower position for disposing the gold brush and an upper position for disposing the gold brush above the electric wire, and the polishing brush is brought into contact with and separated from the electric wire. 3. The resistance measurement of the electric wire connection part according to claim 2, wherein the electric wire is polished by swinging the polishing brush around the electric wire while the electric wire is held therebetween. apparatus.