JP2013256213A - Support device of in-tunnel rigid body electric traction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support device of a rigid body electric traction capable of maintaining an adjusted cant angle by easily adjusting a support angle of the rigid body electric traction according to the cant angle of a roadway, in a narrow tunnel.SOLUTION: A rigid body electric traction support device 1 includes an angle adjusting mechanism 4 for supporting a rigid body electric traction 21 so as to be capable of inclining to an insulator 3 according to a cant angle. The angle adjusting mechanism 4 is provided with a receiving member 5 joined to the insulator 3, and a support member 6 supported by the receiving member 5 so that a relative angle can be vertically changed in the lateral direction and supporting the rigid body electric traction 21. A lower part of the receiving member 5 is provided with a lower engaging part 10 having a plurality of axial directional projection strips 13 of projecting in the radial direction in the circumferential direction on a circular arc-shaped upper side surface 12 having the axis in the extension direction. The support member 6 is provided with an upper engaging part 14 having a circular arc-shaped lower side surface 16 along the circular arc-shaped upper side surface 12 of the lower engaging part 10 of the receiving member 5, and including a plurality of axial directional engaging grooves 17 for engaging with the projection strips 13 in the circumferential direction.

Description

  The present invention relates to a support device for a rigid train line in a tunnel that is fixed to a ceiling of a subway or the like of a subway and supports the rigid train line so that the angle of the rigid train line can be adjusted according to the cant angle of the track.

Conventionally, there is known a cant adjustment mechanism for a rigid railway line in a tunnel according to Patent Document 1. This is to connect the mounting member that fixes the upper part of the suspension member that suspends the rigid train line via the insulator and the upper support member positioned above the mounting member via a pair of adjustment bolts on the left and right sides. Thus, these adjustment bolts support the mounting member from the upper support member at different vertical positions on the left and right sides, thereby changing the angle of the mounting member and adjusting according to the cant angle.
Also, a supporting device for a rigid railroad line in Shinji described in Patent Document 2 is known. This is fixed to a pair of insulators that are coupled to the lower part of the base fixed to the ceiling with a space in the left-right direction, and fixed between the receiving members so that the angle can be adjusted according to the cant angle. And a support member for supporting the rigid train line. A support member having an arc surface that is substantially concentric with the lower trolley wire in the attached state is provided at the end portion in the extending direction of the receiving member, and an arc surface that overlaps the arc surface of the receiving member is provided at both ends of the support member. And changing the relative fixing angle of the support member by sliding the arcuate surfaces, and fixing the support member to the receiving member with bolts.

Japanese Patent Laid-Open No. 9-086228 JP 2008-030578 A

In the above-mentioned conventional cantilever adjustment mechanism for a rigid train line in a saddle, since it is arranged at the upper part of the insulator, it is far from the inclination center of the rigid train line, and the fine adjustment of the cant angle is not easy.
Further, in the above-mentioned rigid train line support device, adjustment corresponding to the cant angle is possible at a position near the center of inclination of the rigid train line, but the cant angle can be reduced by fastening a bolt for fixing the receiving member and the support member. Since the bolts are fixed at the corresponding inclination angles, if the bolts are loosened, the positions of the receiving member and the support member are shifted, and the cant angle cannot be accommodated.
In view of this, the present invention provides a support device for a rigid train line in a tunnel that can easily adjust the support angle of the rigid train line according to the cant angle of the track in a narrow saddle, and maintains the adjusted inclination angle over a long period of time. The challenge is to do.

  In the present invention, in order to solve the above-described problem, the rigid train line support device 1 is configured to support the rigid train line 21 on the ceiling of the tunnel via the insulator 3 and to fix a plurality of the train lines 21 at intervals in the extending direction. Thus, an angle adjusting mechanism 4 that supports the rigid electric train line 21 so as to be tiltable with respect to the insulator 3 according to the cant angle is provided. The angle adjusting mechanism 4 includes a receiving member 5 coupled to the insulator 3 and a supporting member 6 that is supported by the receiving member 5 so as to be capable of changing the relative angle in the vertical direction and that supports the rigid train wire 21. The receiving member 5 includes a mounting portion 9 that is bolted to the lower portion of the insulator 3, and a semi-cylindrical lower engaging portion 10 that has an arcuate upper side surface 12 that has an axial line extending in the lower portion of the mounting portion 9. Is provided. The support member 6 has an arcuate shape along the arcuate upper side surface 12 of the support portion 15 that removably supports the flange 22a in the left-right direction of the rigid train wire 21 at both left and right end portions, and the lower engagement portion 10 of the receiving member 5. It has a lower side surface 16 and is arranged on the receiving member 5 so that the relative angle in the horizontal direction can be changed. One of the arcuate upper side surface 12 of the portion 10 or the arcuate lower side surface 16 of the upper engaging portion 14 is provided with a plurality of axially projecting ridges 13 projecting in the radial direction, and the other is associated with the ridge 13. A plurality of axial engagement grooves 17 are provided in the circumferential direction, and the engagement positions of the upper engagement portion 14 and the lower engagement portion 10 are appropriately selected and positioned according to the cant angle.

  In the present invention, the angle is adjusted at a position below the insulator, so that a specified insulation distance from the ceiling can be secured, and the rigid train line is set at a support angle corresponding to the cant angle of the track as close as possible to the ceiling. Adjustment can be performed easily, and the positioning can be adjusted accurately by engaging the engaging ridge with the engaging groove, making adjustment work easier and adjusting without being displaced easily even by loosening of the bolt. The supported angle can be maintained over a long period of time.

It is a perspective view of the support device concerning the present invention. FIG. 2 is a front view of the support device of FIG. FIG. 2 is a side view of the support device of FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3 of the support device in FIG. 1. It is a perspective view of a receiving member. It is a perspective view of a supporting member. It is a front view of the support apparatus of an inclined state. It is an enlarged front view of an angle adjustment mechanism.

Embodiments of the present invention will be described with reference to the drawings.
1 to 4, a plurality of support devices 1 are fixed to the ceiling of a railroad at a distance from each other in the extending direction of the train line, and support the rigid train line 21 so that the angle can be adjusted according to the cant angle. The rigid train line 21 includes a long support rigid body 22 and a trolley wire 23 held between lower edges of the support rigid body 22. The support rigid body 22 is engaged with an upper flange 22a, a pair of parallel webs 22b extending at right angles from the flange 22a, and a side groove of the trolley wire 24 along the lower edge of the webs 22b. This is a long conductor having a gripping portion 22c to be joined and a bolt 22d for fastening between the pair of webs 22b, 22b. The rigid train line 21 is fixed to the support device 1 at the upper flange 22a of the support rigid body.

  The support device 1 includes a fixing member 2 that is fixed to the ceiling, and an angle adjustment mechanism 4 that is fixed to the lower portion of the fixing member 2 via an insulator 3. The insulator 3 is suspended below the fixing member 2.

  The angle adjustment mechanism 4 is attached to the support member 6, the support member 6 that is coupled to the insulator 3, the support member 6 that is supported by the support member 5 so that the relative angle can be changed vertically on both sides (left and right directions) And a support bracket 7 that supports the upper portion of the rigid train line 21.

  As shown in FIGS. 5 and 7, the receiving member 5 includes a lower engaging portion 10 having a semi-cylindrical shape having a flat lower surface and an upper side surface 12 having an arc shape, and a connection rising from a central portion of the lower engaging portion 10. Corresponding to the fixed piece 3a at the lower end of the insulator 3, a stem 11 is provided which extends horizontally from the upper end of the connecting trunk 11 to the left and right sides, and is attached with a fixing piece 3a and fixed with bolts 8a and nuts 8b. . A plurality of longitudinal ridges 13 projecting in the radial direction are provided on the upper side surface 12 of the lower engagement portion 10 in the circumferential direction. At the top of the upper side surface 12, there is a bolt hole 9 a that is formed flat to allow the bolt 20 to be inserted therethrough and penetrates vertically. The end surface of the lower engagement portion 10 has a mark 10b indicating the center of the top.

  As shown in FIGS. 6 and 7, the support member 6 is supported on the lower engagement portion 10 of the receiving member 5, and is attached to the lower engagement portion 10 so that the relative angle can be changed vertically. The support member 6 includes an upper engagement portion 14 that is curved upward so as to straddle the lower engagement portion 10 from side to side, and a plate-like support portion 15 that extends horizontally to the left and right ends of the upper engagement portion 14. And. Inside the support member 6, there is an opening 6 a that vertically penetrates the attachment piece 11 and the connection trunk 10 of the receiving member 5. The upper engagement portion 14 has an arc-shaped lower side surface 16 corresponding to the upper side surface 12 of the lower engagement portion 10, and a longitudinal direction in which the protrusion 13 of the lower engagement portion 10 is fitted to the lower side surface 16. A number of engagement grooves 17 are provided at equal intervals in the circumferential direction. The top engaging portion 14 has a bolt insertion long hole 14a for allowing the bolt 19 to be inserted so that the relative position can be changed within a certain range with respect to the bolt hole 9a. A scale plate 14 b indicating the inclination angle of the support member 6 with respect to the receiving member 5 is fixed to the end surface of the upper engagement portion 14. A stopper piece 15a rises at the tip of the support portion 15, and an insertion recess 15b for receiving a bolt is formed at the middle portion of the edge. When the supporting member 6 is disposed on the receiving member 5, the engaging groove 17 engages with the protrusion 13 of the lower engaging portion 10, positions the supporting member 6 with respect to the receiving member 5, and fixes without shifting. .

  The support bracket 7 supports the flange 22 a of the rigid electric train line 21. The support fitting 7 is joined to the lower surfaces of the support portions 15 and 15 of the support member 6 respectively, and is fastened with bolts 20 and extends obliquely downward from the attachment plate portion 7a. It has the mounting part 7b which protrudes substantially horizontally so that a clearance gap may be put between the support members 6 via a level | step difference. A holding piece 7c that comes into contact with the outer surface of the stopper piece 15a rises at the outer edge of the mounting plate portion 7a. The mounting plate portion 7a has an insertion hole through which the bolt 20 passes.

  In this support device 1, the mounting piece 9 of the receiving member 5 penetrating the opening 6a of the supporting member 6 is overlapped on the fixing piece 3a of the insulator 3 attached from the ceiling of the tunnel via the fixing member 2, and bolts 8a, Tighten with nut 8b and fix. In this state, the upper engagement portion 14 of the support member 6 is placed on and supported by the lower engagement portion 10 of the receiving member 5. The support member 6 can be arranged so that the upper engagement portion 14 is inclined vertically with respect to the lower engagement portion 10, and the inclination position is adjusted by matching the mark 10 b to the scale plate 14 b according to the cant angle of the trolley wire 24. It can be adjusted and positioned by engaging the protrusion 13 at the adjustment position with the engagement groove 17, and the bolt 19 can be fastened and fixed. By doing so, the rigid rail wire 21 can be inclined and supported by the support fitting 7 inclined together with the support member 6 in accordance with the cant angle.

DESCRIPTION OF SYMBOLS 1 Support apparatus 3 Insulator 4 Angle adjustment mechanism 5 Receiving member 6 Support member 7 Support metal fitting 9 Mounting part 10 Lower engagement part 12 Arc-shaped upper side surface 13 Projection 14 Upper engagement part 15 Support part 16 Arc-shaped lower side surface 17 Engagement Groove 19 Bolt 21 Rigid train line 22 Support rigid body 23 Trolley line 22a Flange

Claims (4)

A rigid train line support device that supports a rigid train line via a lever on the ceiling of a tunnel, and is fixed in a plurality with a mutual interval in the extending direction,
An angle adjusting mechanism coupled to the insulator and supporting the rigid train line so as to be tiltable with respect to the insulator according to a cant angle;
The angle adjusting mechanism includes a receiving member coupled to the insulator, and a supporting member that is supported by the receiving member so as to be capable of changing a relative angle in the horizontal and vertical directions, and that supports the rigid train line,
The receiving member includes a mounting portion that is bolted to a lower portion of the insulator, and a semi-cylindrical lower engaging portion that has an arcuate upper side surface that has an extending axis in the lower portion of the mounting portion,
The support member has a support portion that detachably supports a flange in the left-right direction of the rigid train line at both left and right ends, and an arcuate lower side surface 16 that follows the arcuate upper side surface of the lower engagement portion of the receiving member. And an upper engaging portion that is arranged on the receiving member so as to be able to change a relative angle in the horizontal direction and that is bolted to the lower engaging portion,
One of the arcuate upper side surface of the lower engagement part or the arcuate lower side surface 16 of the upper engagement part is provided with a plurality of axially protruding ridges in the radial direction, and the other is provided with the ridges on the other side. A plurality of engaging grooves in the axial direction to be engaged are provided in the circumferential direction, and the engagement position between the upper engagement portion and the lower engagement portion is appropriately selected and positioned in accordance with the cant angle. Rigid train line support device.   The bolt insertion long hole for fixing the relative position of the said lower engagement part so that a change is possible is comprised in the top part of the circular-arc upper side surface of the said upper engagement part. A device for supporting a rigid railway line in Shinji.   The apparatus for supporting a rigid electric wire in a tunnel according to claim 1 or 2, wherein the support member includes an opening for penetrating the attachment portion of the receiving member and straddling the lower engagement portion from side to side. .   4. One of the lower engagement part and the upper engagement part is provided with a scale corresponding to the inclination angle, and the other is provided with an instruction mark for supporting the scale. A rigid rail line support device in Shinji.

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