JP3742078B2 - Connection device for orbit branching device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a track branching device used in a new transportation system such as a magnetic levitation railway or a monorail, and more particularly to a connection device for a track branching device with improved durability.
[0002]
[Prior art]
Conventionally, a track branching device that selectively moves a branching movable girder whose base end is pivotally supported to the end of a fixed track girder to selectively connect one end to one of a plurality of branch side fixed track girders during a rolling operation. The connecting device used in the above is required to connect the branch movable girder and the branch side fixed track girder with high precision. There is a horizontal arm that is rotatably attached to the horizontal arm, and the horizontal arm supports the connecting beam, and the horizontal arm includes a horizontal arm tip support means and a horizontal arm rotation restricting means.
[0003]
The horizontal arm tip support means is a pair of U-shaped guides that are rotatably provided on a roller shaft that protrudes from the tip of each horizontal arm and guides the roller provided at the end of the branch-side fixed orbit beam. And a roller guide. The horizontal arm rotation restricting means includes a stopper piece protruding below the horizontal arm and a stopper member protruding in the horizontal direction from the hinge member toward the stopper piece.
[0004]
In this connecting device, when the branching movable girder is moved by the rolling operation, the roller of the horizontal arm is fitted on the roller guide of the orbiting girder slightly (about 1 mm) to connect the branching movable girder and the orbiting girder. The Further, the horizontal arm rotation restricting means restricts the horizontal arm from rotating and descending from a preset position during the rolling operation. A slight gap is formed between the stopper piece and the stopper member. When the branch movable beam and the track beam are connected, the horizontal arm is supported by the roller guide via the roller, and the roller As a result, the gap is formed slightly below the engaging portion between the stopper piece and the stopper member. Due to this gap, even if the temperature of the branching movable girder changes or the warp occurs upward at the end of the girder when passing through the vehicle, this warp is absorbed and the stopper piece and the stopper member are not buffered (Patent Literature). 1).
[0005]
[Patent Document 1]
JP 2002-180405 A (page 2-3, FIGS. 1 and 2)
[0006]
[Problems to be solved by the invention]
However, in the above, when the roller fits into the roller guide, if the amount of the roller that rides on the roller guide is less than the set amount due to a manufacturing error or the like, it is below the engagement portion between the stopper piece and the stopper member. The gap formed is small, and the upward warp generated at the end of the beam when passing through the vehicle may not be sufficiently absorbed by this gap. For this reason, an unreasonable load is applied between the stopper piece and the stopper member, and there is a possibility that the durability of the stopper piece is lowered. In addition, if a gap more than the set amount is formed between the roller and the roller guide due to manufacturing errors, warpage that occurs at the end of the beam when passing through the vehicle increases, and the gap is formed between the stopper piece and the stopper member. The warp could not be sufficiently absorbed by the gap, and the stopper piece and the stopper member could be buffered.
[0007]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a connecting device for a track branching device that improves the durability of stopper pieces and stopper members with a simple structure and can be operated stably.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention connects the branch track girder to the branch fixed track girder at the distal end of the branch track beam pivotally supported by the end of the fixed track beam so as to be horizontally rotatable. A connecting girder is supported by a horizontal arm, and a base end of the horizontal arm is pivotally supported by a hinge member at a front end of the branching track girder through a bracket so as to be pivotable in the vertical direction. A horizontal arm tip supporting means having a roller and a roller guide is provided between the tip of the side fixed track girder and a horizontal arm circuit for restricting the downward rotation of the horizontal arm between the horizontal arm and the branch track girder. In the connecting device for the track branching device provided with the movement restricting means, the horizontal arm rotation restricting means is provided with a stopper piece protruding below the horizontal arm, and protruding in the horizontal direction from the bracket toward the stopper piece. A topper member; and an engaging means for engaging the tip of the stopper member with the stopper piece, wherein the engaging means includes an elastic member interposed between the stopper piece and the stopper member. Yes.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The connection device 1 of the track branching device according to this embodiment is used for a magnetic levitation railway, and the distal end of the branching movable beam 3 having a base end pivotally supported at the end of the incident-side fixed track beam 2 is positioned on the localization side. The fixed track girder 4 and the fixed track girder 5 on the opposite side are selectively connected to each other.
[0010]
The incident-side fixed orbit girder 2 is fixed to the ground, and a mounting pin 6 is erected at this end. A hinge is formed at one end of the branching movable girder 3, and the branching movable girder 3 is pivotally supported so as to be rotatable with respect to the fixed track girder 2 by loosely fitting the hinge to the mounting pin 6. . A rail 7 is laid on the ground on the tip side of the branch track girder, and the branch movable girder 3 travels on the rail 7 and moves in the horizontal direction.
[0011]
A pair of brackets 8 are fixed on both sides of the distal end of the branching movable beam 3, and the base end side of the horizontal arm 9 is provided at the upper part of each bracket 8 by a hinge member 10 so as to be vertically rotatable. . A roller shaft protrudes horizontally in the girder direction on the back surface on the front end side of each horizontal arm 9, and a roller 12 is provided at the front end of the roller shaft via a spherical bearing 11. A stopper piece 13 hangs down on the back surface near the base end of the horizontal arm 9, and a substantially U-shaped cutout hole 13 a that opens downward is formed in an intermediate portion of the stopper piece 13. The pair of left and right horizontal arms 9 and 9 are connected by a connecting body 14.
[0012]
A stopper member 15 that is inserted into a notch hole 13 a formed in the stopper piece 13 protrudes from an intermediate portion of the bracket 8, and the stopper member 15 is screwed into a nut member 16 at its distal end. Attached to the bracket 8. The stopper member 15 has a disc spring 17, 17 as an elastic member inserted through a washer with an outer peripheral portion directed to the side surface of the stopper piece 13, and double nuts 18, 18 provided on the outer side thereof. The disc springs 17 and 17 are attached so as to contact the side surface of the stopper piece 13, and the disc springs 17 and 17 and the washer are prevented from coming off. In this embodiment, the horizontal arm rotation restricting means 19 is constituted by the stopper piece 13, the stopper member 15, the disc springs 17 and 17, and the double nuts 18 and 18.
[0013]
The connecting girder 20 is pivotably attached by a pin provided at the tip of the branching movable girder 3 in the same manner as the horizontal arm 9. They are connected with a slight gap.
[0014]
A pair of roller guides 21 that form a horizontal arm tip support means together with the roller 12 are provided on the left and right sides of the end portions of the branch-side fixed track girders 4 and 5. As shown in FIGS. 1 and 4, the roller guide 21 includes an upper guide 21a and a lower guide 21b. The roller guide 21 is formed in a tapered shape from both sides toward the center so that the roller 12 fits smoothly. The distance between the guide 21 a and the lower guide 21 b is set slightly larger than the diameter of the roller 12. A locking device (not shown) is provided on the center line in the longitudinal direction of the left and right horizontal arms 9 in order to position and hold the branch movable beam 3 in the left-right direction.
[0015]
Next, in the connection device 1 configured as described above, an operation when the branch movable beam 3 is changed from the fixed position to the inverted position will be described. When a command to roll is issued, the locking device is unlocked and the movable branching girder 3 becomes movable, and the other end of the movable branching girder 3 runs on the rail 7 and moves horizontally by the operation of the rolling device. Move to. At this time, the roller 12 of the branching movable girder 3 fitted to the roller guide 21 of the fixed fixed track girder 4 rolls off the roller guide 21, and the horizontal arm 9 has a notch hole in the stopper piece 13. Due to the engagement between the stopper 13 and the stopper member 15, the stopper member 15 moves while being held so as not to descend from a predetermined position. When the branch movable girder 3 moves to the inverted fixed track girder 5, the roller 12 of the branch movable beam 3 is guided to the roller guide 21 of the fixed track girder 5 and slightly (about 1 mm) by the tapered surface of the lower guide 21 b. The roller guide 21 is fitted while riding up. At this time, even if errors occur in the dimensions due to manufacturing errors of the fixed track girder 5 and the branch movable girder 3 and expansion / contraction due to temperature, the error of the dimension can be absorbed by the rotation of the connecting girder 20 and the spherical bearing 11. The roller 12 can be smoothly fitted to the roller guide 21.
[0016]
When the left and right rollers 12 are fitted into the roller guide 21, the leading end of the connecting beam 20 is held in a state where there is no step with the fixed track beam 5. When the branching movable girder 3 moves to a predetermined position, it is stopped by a limit switch, and the locking device is activated to be connected to the fixed track girder 5. As a result, the left and right directions of the branch movable beam 3 and the fixed track beam 5 coincide.
[0017]
When the vehicle passes from the incident-side fixed track girder 2 connected as described above to the branch-side fixed track girder 5 side, the incident-side fixed track girder 2 bends due to the weight of the vehicle, and this deflection is the horizontal arm. Reflecting in 9, 9 and the connecting girder 20, the horizontal arms 9, 9 and the connecting girder 20 are warped upward at the end of the fixed track girder 5 side. Due to this warpage, the notch hole 13a of the stopper piece 13 and the stopper member 15 are rattled when the vehicle passes, but the gap set between the notch hole 13a and the stopper member 15 and the notch hole 13a project. This rattling can be absorbed by the disc springs 17 and 17 attached to the stopper member 15, and damage to the cutout hole 13 a and the stopper member 15 can be effectively prevented. Further, if a gap greater than the set value is formed between the roller 12 and the roller guide 21 due to a manufacturing error or the like, warpage generated when the vehicle passes is increased, but in this case also, the notch hole is formed by the disc springs 17 and 17. The backlash between the stopper 13 and the stopper member 15 can be suppressed, and the durability of the stopper piece 13 and the stopper member 15 can be improved.
[0018]
In addition, when the amount of the roller 12 that rides on the roller guide 21 is increased, an impact is applied to the roller 12 during connection, and the durability of the roller 12 and the roller guide 21 may decrease. 17 and 17 effectively suppress rattling between the cutout hole 13a and the stopper member 15 when passing through the vehicle, and the vertical movement of the horizontal arms 9 and 9 can be set small. The behavior of the horizontal arms 9, 9 during the dredging operation can be stabilized.
[0019]
In the above-described embodiment, a disc spring is applied as the elastic member. However, the elastic member of the present invention is not limited to the disc spring, and any elastic member such as a coil spring may be applied. . Further, the connection device of the present invention is not limited to the case where the fixed track girder on the branch side is two on the localization side and the opposite side as in the above-described embodiment, and there are a plurality of connection devices such as three cases or a turntable. It can also be applied in some cases.
[0020]
【The invention's effect】
As described above, according to the present invention, even if the stopper piece and the stopper member are rattled by the warp generated in the branching movable girder while passing through the vehicle, the rattling is prevented by the elastic member. Can be absorbed. Accordingly, the stopper piece and the stopper member can be prevented from buffering, and the durability of the stopper piece and the stopper member can be improved.
[0021]
Furthermore, since the amount of the roller that rides on the roller guide can be kept small, the roller is less likely to hit the roller guide during the rolling operation, and the rolling operation can be made faster. The durability of the guide can also be improved.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional side view of a connecting device showing an embodiment of the present invention. FIG. 2 is an enlarged sectional view of a main part of the connecting device showing an embodiment of the present invention. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3. FIG. 5 is a plan view showing the appearance of the track branching apparatus according to an embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 ... Connection apparatus, 2, 4, 5 ... Fixed track girder, 3 ... Branch movable girder, 8 ... Bracket, 9 ... Horizontal arm, 10 ... Hinge member, 12 ... Roller, 13 ... Stopper piece, 13a ... Notch hole, DESCRIPTION OF SYMBOLS 14 ... Connection body, 15 ... Stopper member, 17 ... Disc spring, 19 ... Horizontal arm rotation control means, 20 ... Connection girder, 21 ... Roller guide

Claims (1)

A connecting arm for connecting the branch track girder to the branch side fixed track girder is supported by the horizontal arm at the tip of the branch track girder pivotally supported at the end of the fixed track girder in the horizontal direction. A base end of the horizontal arm is pivotally supported by a hinge member via a bracket at the tip of the branch track girder so as to be pivotable in the vertical direction. A roller is provided between the tip of the horizontal arm and the tip of the branch side fixed track girder And a trajectory branching device provided with a horizontal arm rotation restricting means for restricting the downward rotation of the horizontal arm between the horizontal arm and the branch track girder, and a horizontal arm tip support means having a roller guide. In the apparatus, the horizontal arm rotation restricting means includes a stopper piece protruding below the horizontal arm, a stopper member protruding horizontally from the bracket toward the stopper piece, and the stopper member And a engaging means for engaging the distal end to the stopper piece, the engagement means, connecting device track branching unit, characterized in that the elastic member is interposed between the stopper piece and the stopper member.

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