JP2005059730A - Short-circuiting on/off device for insulated wheel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely conduct short circuiting between an inside wheel and an outside wheel of insulated wheels, in a short-circuit device for the insulated wheel. <P>SOLUTION: An electrically conductive ring member 13 is arranged integrally at the circumferential surface of an axle 6 via an insulation material. An extremity end 20 of a brush 21 fixed to a chassis body 1 is slidably abutted against the outer circumference of the ring member 13, and at the same time, an operation switch 23 is connected to the brush 21. The primary side 10A of a magnetic coil 10 is connected to the ring member 13. The brush 21 is abutted against the ring member 13, integrally rotated with the wheel, thereby it becomes possible to attain sure electrical continuity state between a short-circuited state operation switch 23 and an electromagnetic relay 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a short-circuit on / off device for an insulated wheel.

  Conventionally, as this type of brush, a slip portion is provided via an insulator in or near the inner ring of the insulated wheel, and the slip portion is connected to the outer ring of the insulated wheel by a lead wire, and the brush provided on the carriage on the strip portion. Insulating wheel short-circuit devices are known in which the brush is connected to a switch of the vehicle body via a lead wire, and the outer wheels of the left and right or front and rear insulating wheels are short-circuited by this switch.

However, in such a conventional short circuit device for an insulated wheel, the short circuit between the inner ring and the outer ring of the insulated wheel is turned on / off, and the inner ring and further the axle is connected from one rail through the outer ring of one wheel. Therefore, it is not possible to conduct electricity from the inner ring to the outer ring of the other wheel, and also between the other rail. For this purpose, the two rails on the left and right are electrically short-circuited, and the resistance value in one closed section between the traffic lights is measured, so that a train such as a maintenance vehicle enters the one closed section. There is a problem that it is difficult to reliably detect whether or not.
Japanese Utility Model Publication No. 2-33375

  The problem to be solved is to ensure that a short-circuit state between the inner ring and the outer ring of the insulated wheel can be reliably performed in the short-circuit on / off device for the insulated wheel.

  According to the first aspect of the present invention, an opening / closing part is interposed between the inner ring and the outer ring of an insulating wheel in which an insulating material is disposed between an iron inner ring connected to an axle and an iron outer ring, and the opening / closing part A short-circuit on / off device for an insulating wheel that connects a primary side of a drive unit to an operation switch, and a conductive ring body is provided coaxially on the peripheral surface of the axle via an insulation section. A conductive contact portion is slidably abutted on the outer periphery, the operation switch is connected to the contact portion, and the primary side of the drive portion is connected to the ring body.・ Off device.

  The invention of claim 2 is characterized in that an electromagnetic relay opening / closing portion is interposed between the inner ring and the outer ring of the insulating wheel in which an insulating material is disposed between the iron inner ring connected to the axle and the iron outer ring, And a short-circuit on / off device for an insulated wheel for connecting a primary side of an electromagnetic coil portion of the electromagnetic relay to an operation switch, wherein a conductive ring body is coaxially formed on the peripheral surface of the axle via an insulating portion. An insulated wheel characterized in that a brush is slidably brought into contact with an outer periphery of the ring body, the operation switch is connected to the brush, and a primary side of the electromagnetic coil portion is connected to the ring body. This is a short-circuit on / off device.

  According to a third aspect of the present invention, an opening / closing portion is interposed between the inner ring and the outer ring of an insulating wheel in which an insulating material is disposed between an iron inner ring connected to an axle and an iron outer ring, and the opening / closing Insulating wheel short-circuit on / off device for connecting the primary side of the drive unit of the part to the operation switch, and providing a conductive ring body coaxially with the inner ring through the insulating part on the inner ring or the outer ring, A conductive contact portion is slidably abutted on the ring body, the operation switch is connected to the contact portion, and the drive unit is connected to the ring body. Off device.

  Further, the invention of claim 4 is characterized in that an electromagnetic relay opening / closing part is interposed between the inner ring and the outer ring of the insulating wheel in which an insulating material is disposed between the iron inner ring connected to the axle and the iron outer ring, A short-circuit ON / OFF device for an insulated wheel that connects the primary side of the electromagnetic coil portion of the electromagnetic relay to an operation switch, wherein a conductive ring body is coaxially connected to the inner ring on the side surface of the inner ring via an insulating portion. The brush is slidably abutted on the side surface of the ring body, the operation switch is connected to the brush, and the primary side of the electromagnetic coil portion is connected to the ring body. Insulation wheel short-circuit on / off device.

  According to the first aspect of the present invention, the contact portion is brought into contact with the ring body that rotates integrally with the axle in a sliding state and is energized to supply power to the drive portion, thereby reliably operating the opening / closing portion by the opening / closing operation of the operation switch. Can be done.

  According to the second aspect of the present invention, the operation of the opening / closing portion by the opening / closing operation of the operation switch is performed by supplying power to the electromagnetic coil portion by energizing the brush in contact with the ring body rotating integrally with the axle. Can be performed reliably.

  According to a third aspect of the present invention, the contact part is brought into contact with the ring body that rotates integrally with the inner ring or the outer ring in a sliding state, energized to supply power to the drive part, thereby opening / closing part by opening / closing operation of the operation switch. Can be reliably performed.

  According to the invention of claim 4, the operation of the opening / closing part by the opening / closing operation of the operation switch is performed by the brush contacting the ring body rotating integrally with the inner ring in a sliding state to supply power to the electromagnetic coil part. Can be performed reliably.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention. For example, the insulating portion may be formed of an air layer in addition to the insulating material. Further, in the embodiment, the conductive ring body is provided coaxially with the inner ring via the insulating part on the inner ring, but the conductive ring body is coaxial with the outer ring and eventually the inner ring via the insulating part on the outer ring. It may be provided.

  FIG. 1 shows a first embodiment, and a pair of wheels 3 are fixed to the left and right of an iron axle 2 that is rotatably provided below a vehicle body 1 equipped with a carriage or the like. Each wheel 3 has an iron outer ring 5 coaxially disposed on the outer periphery of an iron inner ring 4 into which the axle 2 is coaxially inserted, and a bolt / between the outer periphery of the inner ring 4 and the inner periphery of the outer ring 5. Insulating wheels are formed by interposing an insulating material 7 between the outer periphery of the inner ring 4 and the inner periphery of the outer ring 5 while being fixed by a fixing tool 6 such as a nut.

  An electromagnetic relay 8 is integrally mounted on the inner side surface of each inner ring 4 or outer ring 5. The electromagnetic relay 8 can open and close the pair of switching contacts 12 between conducting and non-conducting by operating the switching unit 11 by energizing the electromagnetic coil unit 10 as a driving unit provided in the case 9. Is. Contact points 12 are respectively connected to the inner ring 4 and the outer ring 5 via lead wires 12A, and an opening / closing part 11 of the electromagnetic relay 8 is interposed between the inner ring 4 and the outer ring 5.

  A conductive ring body 13 is provided coaxially with the axle 2 in the vicinity of the inner ring 4 of the axle 2. The ring body 13 has a short cylindrical portion 14 fitted to the peripheral surface of the axle 2 via an insulating material 15 serving as an insulating portion, and is provided on the outer side in the left-right direction of the short cylindrical portion 14 so as to protrude from the outer periphery in a flange shape. The edge plate 16 is fixed to the inner side surface of the inner ring 4 via an insulating material 17 serving as an insulating portion. For this purpose, the ring body 13 is insulated from the axle 2, the inner ring 4 and the outer ring 5 and is provided integrally with the axle 2. The ring body 13 is connected to the primary side 10A of the electromagnetic coil part 10 for operating the opening / closing part 11 of the electromagnetic relay 8 via the lead wire 18, and the secondary side 10B of the electromagnetic coil part to the vehicle body 1 or the like. It is connected to the lead wire 19 to be grounded.

  A base end 22 of a conductive brush 21 called a current collecting brush or the like, which is a conductive contact portion slidably contacted with the outer periphery of the short cylindrical portion 14, is fixed to the vehicle body 1 side. 21 is connected to a DC power source 24 as a power source via a short-circuit operation switch 23 provided around the driver's seat, for example. The tip 20 may be urged by an elastic body (not shown) so as to contact the outer periphery of the short cylindrical portion 14. In the figure, reference numeral 25 denotes a fuse provided between the short-circuit operation switch 23 and the DC power supply 24. The pair of brushes 21 are connected in parallel via the lead wire 27 to the secondary side 23B of the short-circuit operation switch 23 in which the DC power source 24 is connected to the primary side 23A via the lead wire 26. Reference numerals 28 and 28A denote rails on which the wheels travel.

  Next, the operation of the above configuration will be described. When the short-circuit operation switch 23 is turned on (closed), direct current flows from the DC power source 24 through the short-circuit operation switch 23 to the ring body 13 rotating with the wheel from the tip 20 of the brush 21. The current flowing through the ring body 13 is energized through the lead wire 18 to the electromagnetic coil unit 10. When the electromagnetic coil unit 18 is energized, the opening / closing unit 11 is turned on (closed), and the pair of contacts 12 is closed. Therefore, between one rail 28 and the other rail 28A, the other wheel is passed through the axle 28 after passing through the rail 28, the outer ring 5 of one wheel, the closed opening / closing part 11 and the inner ring 4. The inner ring 4 of 28A, the closed opening / closing part 11, and the outer ring 5 are connected to the other rail 28A. Therefore, whether or not a train such as a maintenance vehicle has entered into one closed section between the traffic lights (not shown) by short-circuiting the inner ring 4 and the outer ring 5 by turning on (closing) the short-circuit operation switch 23. Can be reliably detected.

  Since the short-circuit operation switch 23 is normally off (open), no power is supplied to the electromagnetic relay 8 from the DC power supply 24, and therefore the opening / closing part 11 is off (open), and the inner ring 4 and the outer ring 5 are not short-circuited.

  As described above, in the embodiment, the conductive ring body 13 is integrally provided on the peripheral surface of the axle 6 via the insulating material, and the brush 21 fixed to the vehicle body 1 on the outer periphery of the ring body 13 is provided. The tip 20 is slidably abutted, the operation switch 23 is connected to the brush 21, and the primary side 10A of the electromagnetic coil portion 10 is connected to the ring body 13, thereby rotating integrally with the wheel. By bringing the brush 21 into contact with the ring 13 body, the short-circuit operation switch 23 side and the electromagnetic relay 8 side can be reliably conducted. Moreover, since the ring body 13 is provided on the entire circumference of the axle 1, the brush 21 can be provided not only at one place as in the embodiment but also at a plurality of two or more places (not shown). become.

  FIG. 2 shows a second embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. A conductive ring body 31 is provided on the outer side surface of the inner ring 4 in the left-right direction. The ring body 31 is plate-shaped and is provided so that its axis coincides with the axis of the inner ring 4. The inner diameter portion 31A of the ring body 31 is disposed on the axial line side, and the outer diameter portion 31B is disposed on the opposite side of the axial line. The inner ring 4 is provided along the insulating material 32 as an insulating portion, and a bolt or the like is disposed on the axial line side. It is fixed by a fixing tool 33. A fixing member is provided between the fixing member 33 and the ring body 31 via a cylindrical body 34 called an insulating collar or the like, and the ring body 31 is insulated from the axle 2, the inner ring 4 and the outer ring 5. ing.

  A brush 35 as a contact portion is brought into contact with an outer side surface in the left-right direction of the ring body 31. The brush 35 has an axial line sideways and a front end 36 of which is in contact with the outer side surface of the ring body 31 and a base end side 37 is fixed to the vehicle body 1. The primary side 10A of the electromagnetic coil portion 10 of the electromagnetic relay 8 is connected to the ring body 31 via a lead wire 18, and the secondary side 10B of the electromagnetic coil portion 10 is connected to the vehicle body 1 or the like via a lead wire 19. Connected to earth. In the second embodiment, the lead wires 18 pass through the inner ring 4, the insulating material 7 and the outer ring 5 and are arranged on the left and right sides of the wheel.

  Next, the operation of the above configuration will be described. When the short-circuit operation switch 23 is turned on (closed), direct current flows from the DC power source 24 through the short-circuit operation switch 23 to the ring body 31 rotating with the wheel from the tip 36 of the brush 35. The current flowing in the ring body 31 is energized to the electromagnetic coil unit 10 via the lead wire 18. When the electromagnetic coil unit 10 is energized, the opening / closing unit 11 is turned on (closed), and the pair of contacts 12 is closed. For this reason, between one rail 28 and the other rail 28A, the rail 28, the outer ring 5 of one wheel, the opening / closing part 11, the inner ring 4, and then the inner ring 4 of the other wheel via the axle 2, The open / close portion 11 and the outer ring 5 are electrically connected to the other rail 28A.

  As described above, in the embodiment, the conductive ring body 31 is integrally provided on the side surface of the inner ring 5 with the insulating material 32 interposed therebetween, and the brush 35 fixed to the vehicle body 1 on the side surface of the ring body 31 is provided. The tip 36 is slidably abutted, and the operation switch 22 is connected to the brush 35, and the primary side 10A of the electromagnetic coil portion 10 is connected to the ring body 31, thereby rotating integrally with the wheel. By bringing the brush 34 into contact with the ring body 31, the short-circuit operation switch 23 side and the electromagnetic relay side 8 can be reliably conducted.

  As described above, the short-circuit ON / OFF device for an insulated wheel according to the present invention can reliably supply power to the electromagnetic relay or the like when the short circuit between the inner ring and the outer ring is turned on / off using the electromagnetic relay or the like. There is an effect, and it can be used for an existing insulated wheel or the like in addition to a newly installed insulated wheel.

It is a partially cutaway front view showing a first embodiment of the present invention. It is a partially notched front view which shows 2nd Example of this invention.

Explanation of symbols

2 Axle 4 Inner ring 5 Outer ring 7 Insulating material 8 Electromagnetic relay
10 Electromagnetic coil section (drive section)
10A Primary side
11 Opening / closing part
13 31 Ring body
15 17 Insulation (insulation)
21 35 Brush (contact part)
23 Operation switch

Claims (4)

  An opening / closing part is interposed between the inner ring and the outer ring of the insulating wheel in which an insulating material is disposed between an iron inner ring and an iron outer ring connected to the axle, and a primary side of the driving part of the opening / closing part is provided. A short-circuit on / off device for an insulating wheel connected to an operation switch, wherein a conductive ring body is coaxially provided on an outer peripheral surface of the axle via an insulating portion, and a conductive contact portion is provided on an outer periphery of the ring body. A short-circuit ON / OFF device for an insulated wheel, wherein the operation switch is connected to the contact portion, and the drive portion is connected to the ring body.   An electromagnetic relay opening / closing part is interposed between the inner ring and the outer ring of the insulated wheel, in which an insulating material is disposed between the iron inner ring and the iron outer ring connected to the axle, and the electromagnetic coil part of the electromagnetic relay A short-circuit on / off device for an insulated wheel that connects a primary side to an operation switch, wherein a conductive ring body is coaxially provided on an outer peripheral surface of the axle via an insulating portion, and a brush is disposed on an outer periphery of the ring body. A short-circuit on / off device for an insulated wheel, wherein the operation switch is connected to the brush and the primary side of the electromagnetic coil portion is connected to the ring body.   An opening / closing part is interposed between the inner ring and the outer ring of the insulating wheel in which an insulating material is disposed between an iron inner ring and an iron outer ring connected to the axle, and a primary side of the driving part of the opening / closing part is provided. A short-circuit on / off device for an insulating wheel connected to an operation switch, wherein a conductive ring body is provided coaxially with the inner ring via an insulating portion on the inner ring or outer ring, and a conductive contact portion on the ring body Insulating wheel short-circuit on / off device, wherein the operation switch is connected to the contact portion and the drive portion is connected to the ring body.   An electromagnetic relay opening / closing part is interposed between the inner ring and the outer ring of the insulated wheel, in which an insulating material is disposed between the iron inner ring and the iron outer ring connected to the axle, and the electromagnetic coil part of the electromagnetic relay A short-circuit ON / OFF device for an insulated wheel that connects a primary side to an operation switch, wherein a conductive ring body is provided coaxially with the inner ring on the side surface of the inner ring via an insulating portion. A short-circuit ON / OFF device for an insulated wheel, wherein the brush is slidably abutted on, the operation switch is connected to the brush, and the primary side of the electromagnetic coil portion is connected to the ring body.

Images