JP6640629B2 - Turnover for straddle type monorail - Google Patents

Description

  The present invention relates to a straddle-type monorail turnout that selectively changes the track of a straddle-type monorail from one path to another path.

  Conventionally, a branching device for a straddle-type monorail (hereinafter, sometimes simply referred to as a “branch device”) that selectively changes a track of a straddle-type monorail from one path to another path is fixed on the ground. A plurality of branch girders connected in series in a manner continuous with the fixed girder, and supporting the lower surface of the articulation part between the branch girder and the branch girder and the branch girder in a direction intersecting the longitudinal direction of the branch girder. And a drive device that moves the branch girder to convert the branching device, and a lock device that is provided on the truck and engages with a groove on the ground side to fix the branch girder. It is configured. Each of the carts is arranged on a rail laid along the moving direction of the cart.

  The driving device has an arm that pivots in a horizontal plane, and a tip end of the arm is engaged with a groove provided on a lower surface of the branch girder along the longitudinal direction of the branch girder. When the tip of the arm moves along the groove of the branch girder when the arm of the drive device turns in a horizontal plane, a series of branch girder forming the branching unit is moved from one path to the other. The conversion is completed by fixing the branch girder after the movement is completed (for example, see Patent Document 1).

JP 2012-172318 A

  Here, when the monorail vehicle passes through the branch girder, the branch girder receives a lateral load from the monorail vehicle in a direction crossing a plane horizontal to the longitudinal direction of the branch girder. For this reason, the branch girder is provided with a locking device for fixing the branch girder so that the branch girder does not move from the position after being converted by the lateral load acting on the branch girder. Provided at the bottom.

  The above-described conventional locking device is a system in which one end rotatably provided on a trolley is rotated about a fulcrum, and the other end is fitted into a pocket provided on a roadbed to fix the trolley. Was. The branching device provided with the lock device having the movable portion requires a drive system for operating the lock device and a control system for monitoring the operation state of the lock device, so that the cost tends to be high. there were.

  In particular, since the control system has a plurality of operation detection switches that detect the operation of each part of the rotating lock device, the control system itself that originally monitors the operation of the branching device is the operation detection switch that constitutes the control system. Failures inherently cause conversion failure.

  In addition, since the conventional locking device restrains only one point on the roadbed near the bogie supporting the branch girder, the restraining force is caused by the lateral load (crossing in the longitudinal direction of the girder) generated when the monorail vehicle passes. Is not enough to withstand the overturning force caused by the spar, for example, when an overload occurs due to a huge earthquake or the like, there is a concern that the overturning force of the girder overturning exceeds the restraining force. .

  The present invention has been made in consideration of the above points, and has as its object to provide a straddle-type monorail branch switch that is low in cost and has improved restraint force against overturning force.

  In order to achieve this object, the present invention provides a plurality of branch girders connected in series, a bogie supporting the branch girders and moving with the branch girders, a driving device moving the branch girders, and the bogie A bogie stopper disposed at the end position of the moving direction of the branch beam and contacting the moved bogie, wherein the driving device is configured to rotate the arm in a plane horizontal to the moving direction of the branch girder, and to pivot the arm. A roller provided at an end opposite to a base point of the branch girder, the roller is engaged with a groove provided along a longitudinal direction on a lower surface of the branch girder, and the arm is provided with the roller The branch girder is moved by pivoting in a state where it is engaged with the groove, and the bogie comes into contact with the bogie stopper at a position where the longitudinal direction of the arm and the longitudinal direction of the branch girder are substantially orthogonal. Stopping the movement of the branch girder, There is provided a straddle seat type monorail for splitter to complete the conversion of the branch digits.

  According to the present invention, it is possible to provide a straddle-type monorail turnout device that is low in cost and has improved restraint force against overturning force.

It is a top view of the branching device for straddle type monorails concerning the embodiment of the present invention. FIG. 2 is a side view of the straddle-type monorail branch device shown in FIG. 1. It is a top view which expands and shows a part (part enclosed with the wavy line shown by the code | symbol A) of the branching device for straddle type monorails shown in FIG. FIG. 4 is a sectional view taken along the line IV-IV shown in FIG. 3. FIG. 4 is a plan view when the branch girder shown in FIG. 3 is connected to another movable end-side fixed girder.

  Next, a straddle-type monorail branch device (hereinafter, simply referred to as a “branch device”) according to an embodiment of the present invention will be described with reference to the drawings. The embodiments described below are examples for describing the present invention, and the present invention is not limited to only these embodiments. Therefore, the present invention can be implemented in various modes without departing from the gist thereof.

  1 is a plan view of a branching device according to an embodiment of the present invention, FIG. 2 is a side view of the branching device shown in FIG. 1, and FIG. 3 is a part of the branching device shown in FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG. 3, and FIG. 5 is a sectional view showing the branch girder shown in FIG. It is a top view at the time of connecting to.

  As shown in FIGS. 1 to 5, the branching device 100 according to the present embodiment includes a fixed-end fixed girder 1, a movable-end fixed girder 2a (2b), a fixed-end fixed girder 1, and a movable-end fixed girder. Connection of branch girder 3 having first branch girder 3a, second branch girder 3b, third branch girder 3c, and fourth branch girder 3d disposed between girder 2a and 2b, and connection of each branch girder 3a to 3d Trucks 5a, 5b, 5c, and 5d that support the respective sections, and drive devices 6a and 6b that switch the course by changing the branch beams 3a to 3d. FIG. 3 shows a state where the branch girder 3 is connected to the movable end side fixed girder 2a, and FIG. 5 shows a state where the branch girder 3 is connected to the movable end side fixed girder 2b.

  The first branch girder 3a and the second branch girder 3b, the second branch girder 3b and the third branch girder 3c, and the third branch girder 3c and the fourth branch girder 3d are connected in series along the longitudinal direction. . Connected portions 31a to 31c are provided at the longitudinal ends of the branch girders 3a to 3d so that adjacent branch girders overlap and are connected to each other. Dolly 5a, 5b, 5c is provided in each connection part 31a-31c, respectively. Each of the branch girders 3a to 3d is supported by the carts 5a to 5d so as to be movable in a direction intersecting with each branch girder in a horizontal plane. Reference numeral 4 denotes a bogie provided at the end of the fixed branch 1 on the fixed end side of the first branch girder 3a.

  The driving device 6a is provided on the upper surface of the roadbed beside the fourth branch girder 3d, and the driving device 6b is provided on the upper surface of the roadbed beside the second branch girder 3b. The driving device 6a and the driving device 6b are connected to each other by a connection shaft 7 provided in the driving devices 6a and 6b and transmitting a driving force for driving the arm 8 that turns in a horizontal plane.

  In addition, the driving device 6a is provided with an electric motor 20, which is a driving source of the driving devices 6a and 6b, as shown in FIGS. 1, 3 and 5, in particular. The output shaft of the electric motor 20 is connected to a vertical shaft of an arm 8 provided in the driving device 6a and one end of a connecting shaft 7 via a speed reducer (not shown). , Is connected to a vertical axis of an arm 8 of the driving device 6b via a speed reducer (not shown).

  One end of the arm 8 that rotates in a horizontal plane is connected to a vertical shaft to which a driving force is transmitted, and the other end of the arm 8 is provided with a roller 9 described in detail later. . Each roller 9 is engaged (fitted) into a groove 10 which will be described in detail after being provided along the longitudinal direction on the lower surface of each of the branch beams 3b and 3d.

  The turning operation of the branching device 100 is performed by connecting the branch beams 3a to 3c by the drive devices 6a and 6b guiding the second branch beam 3b and the fourth branch beam 3d in a direction intersecting the longitudinal direction of the branch beam. The trucks 5a to 5c respectively supporting the parts 31a to 31c and the truck 5d provided below the movable end side of the branch girder 3d move along the rail on which they are laid and transport each branch girder to a predetermined position. Complete.

  More specifically, when the vertical axis to which one end of each arm 8 of the driving devices 6a and 6b is connected rotates, the arm 8 connected to the vertical axis turns in a horizontal plane and the tip of the arm 8 The roller 9 moves along the groove 10. In the process in which the roller 9 moves along the groove 10, the state in which the series of first to fourth branch girders 3 a to 3 d is connected to the movable end side fixed girder 2 a is changed to the state in which the series is connected to the movable end side fixed girder 2 b. By moving (or vice versa), the turning operation of the branching device 100 is completed. At this time, the first branch girder 3a to the fourth branch girder 3d synchronously move to a predetermined position, and the ends of the trucks 5a to 5d supporting the respective branch girder 3a to 3d are respectively arranged at the stopping points. The abutment comes into contact with the provided bogie stopper 11, and the movement of the branch girder 3 stops.

  As shown in FIG. 3, the branch girder 3 is connected to the movable end side fixed girder 2a and abuts against the bogie stopper 11, and when the conversion is completed, the fourth branch girder 3d connected to the movable end side fixed girder 2a is turned off. The longitudinal direction and the longitudinal direction of the arm 8 are substantially orthogonal (substantially orthogonal). On the other hand, when the branch girder 3 is connected to the movable end side fixed girder 2b and abuts on the bogie stopper 11 and the conversion is completed, as shown in FIG. 5, the fourth branch connected to the movable end side fixed girder 2b The longitudinal direction of the spar 3d and the longitudinal direction of the arm 8 are substantially orthogonal. Note that the state of being substantially orthogonal means that the angle between the longitudinal direction of the fourth branch girder 3d and the longitudinal direction of the arm 8 is preferably about 90 ° ± 3 °, and more preferably about 90 ° ± 1 °. .

  By the above-described series of switching operations of the branching device 100, the entire branch girder 3 including the series of the first branch girder 3a to the fourth branch girder 3d is converted from the course of one monorail vehicle to the other course. Is done.

  Next, the configuration of the groove 10 provided on the lower surface of the branch girders 3b and 3d and the configuration of the roller 9 that engages with the groove 10 will be described using the branch girder 3d as an example.

  One end (base end) of the arm 8 is connected to a vertical shaft 32 disposed above the driving device 6a, as shown in FIG. 4, and the other end (tip) of the arm 8 is , A cylindrical roller 9 having a vertical shaft 33 is provided. When the arm 8 turns in the horizontal plane, the roller 9 moves the branch girder 3d to a predetermined position in the process of moving along the groove 10 provided on the lower surface of the branch girder 3d. A guide 10a is provided on the inner wall of the groove 10 so as to control the size of the roller 9 relative to the outer cylinder surface and to easily replace the roller 9 when it is worn.

  Next, the configuration of the bogie stopper 11 provided at the stop point of the bogies 5a to 5d will be described using the bogie 5d as an example.

  As shown in FIG. 4, the bogie stopper 11 has a bogie stopper beam 11c with which the leading end of the bogie 5d in the moving direction comes into contact. The bogie stopper beam 11c has a substantially U-shaped cross section having a vertical portion 112 erected in the vertical direction, and a pair of horizontal portions 111 and 113 extending from both ends in the height direction of the vertical portion 112 toward the bogie 5d. Shape. An elastic body (contact plate) 11a is provided on a surface of the vertical portion 112 facing the carriage 5d. Further, a rigid plate 11b is provided at a portion of the truck 5d which comes into contact with the elastic body 11a.

  The horizontal portion 111 extends in a direction (i.e., toward the bogie 5d) away from the vertical portion 112 (that is, toward the bogie 5d) with respect to the elastic body 11a provided in the vertical portion 112. On the other hand, the horizontal portion 113 extends with a length (β) in a direction away from the vertical portion 112 with respect to the elastic body 11 a provided on the vertical portion 112. In addition, even if knurling or corrugation is performed on the surface of the contact plate 11b, a large frictional force is generated when a shear load is applied between the elastic body 11a and the contact plate 11b. Good. Note that the length (α) and the length (β) may be the same or different as desired.

  The switching of the branching device 100 is completed in a state where the truck 5d approaches the truck stopper 11 and the abutment plate 11a provided on the truck 5d contacts the elastic body 11a of the truck stopper 11. At this time, the horizontal portions 111 and 113 of the bogie stopper beam 11c cover both ends in the height direction of the elastic body 11a and the backing plate 11b as shown in FIG. Between both end surfaces in the vertical direction and both end surfaces in the height direction of the horizontal portions 111 and 113 (that is, between the upper surface of the horizontal portion 111 and the lower surfaces of the elastic body 11a and the contact plate 11b, and the lower surface of the horizontal portion 113 and the elasticity). A gap is formed between the body 11a and the upper surface of the backing plate 11b).

  Next, a description will be given of a method of holding the branch girder 3 configuring the branching device 100 in which the conversion is completed. In FIG. 4, the fourth branch girder 3d, the bogie 5d, and the driving device 6a are described as representatives. In the following, the fourth branch girder 3d, the bogie 5d, and the driving device 6a will be described. The same applies to the first to third branch girders 3a to 3c, the trolleys 5a to 5c, and the driving device 6b, and thus the description thereof will be omitted.

  The branching device 100 that has completed the conversion keeps the elastic body 11a of the bogie stopper 11 always in contact with the abutment plate 11b of the bogie 5d. At this time, the turning operation of the arm 8 provided in the driving device 6a is stopped in a state where its longitudinal direction is substantially perpendicular to the longitudinal direction of the groove 10 of the fourth branch girder 3d. As described above, by stopping the turning operation in a state where the arm 8 is substantially perpendicular to the longitudinal direction of the branch girder 3 (fourth branch girder 3d in FIG. 4), the function of holding the converted branch girder is improved. Can be done. That is, the drive device 6a can have both the function of changing the branch girder and the function of holding the converted branch girder.

  That is, as shown in FIG. 4, when the monorail vehicle passes through the branching device 100, the lateral load acting on the branch girder 3 and the fourth branch girder 3d in the X direction is supported by the bogie stopper 11 via the elastic body 11a. Done (accepted). The lateral load acting on the fourth branch girder 3d in the Y direction is supported by the driving device 6a including the arm 8 and the roller 9. Further, when a moment load (Z) is applied to tilt the fourth branch girder 3d in the Z direction, and when the branch girder 3 (in FIG. 4, the fourth branch girder 3d is representatively shown) is tilted in the W direction. Are applied, the moment load (W) is supported by the frictional force between the elastic body 11a and the backing plate 11b and the frictional force between the surface of the roller 9 and the guide 10a. Therefore, the arm 8 stops the turning operation in a state of being substantially perpendicular to the longitudinal direction of the branch girder 3 (fourth branch girder 3d in FIG. 4), so that the lateral load in the X direction and the lateral load in the Y direction can be reliably reduced. Can be received efficiently.

  Further, a moment load (Z) acting to tilt the fourth branch girder 3d in the Z direction due to an earthquake or the like and a moment load (W) acting to tilt the fourth branch girder 3d in the W direction act It is conceivable that the frictional force generated only on the contact surface between the elastic body 11a and the backing plate 11b or the contact surface between the guide 10a and the roller 9 cannot be supported (can not be received). Even in such a case, as described above, between the both end surfaces in the height direction of the horizontal portions 111 and 113 of the bogie stopper beam 11c and the both end surfaces in the height direction of the elastic body 11a and the backing plate 11b. , The both end surfaces in the height direction of the backing plate 11b provided on the truck 5d abut against the upper surface of the horizontal portion 111 and the lower surface of the horizontal portion 113 of the truck stopper beam 11c, respectively. Can support (receive) the moment loads (Z) and (W) caused by the above.

  As described above, the branching device 100 according to the present embodiment uses the arms 8 of the driving devices 6a and 6b instead of the locking device provided in the conventional monorail branching device to move the bogies 5a to 5d to the bogie stoppers 11 respectively. The conversion can be completed in a state where it is pressed against. Therefore, it is possible to obtain a sufficient restraining force against the overturning force and to reduce the cost of the branching device without disposing a large-scale locking device as in the related art.

  In the present embodiment, the case where the bogie stopper 11 has the bogie stopper beam 11c has been described. However, the present invention is not limited to this. In the bogie stopper 11, the longitudinal direction of the arm 8 and the longitudinal direction of the branch girder 3 are substantially orthogonal to each other. At this position, if the bogies 5a to 5d abut against the bogie stopper 11 to stop the movement of the branch girder 3 and complete the conversion of the branch girder 3, other configurations may be provided. Good. For example, the bogie stopper beam 11c may have a configuration having only the vertical portion 112 as desired, or may have a configuration having one of the horizontal portions 111 and 113 in addition to the vertical portion 112. . Further, the elastic body 11a may not be necessarily provided. Further, the extending length of the horizontal portions 111 and 113 may not be the length that covers the end faces in the height direction of the backing plate 11b and the elastic body 11a, if desired.

  Further, in the present embodiment, a case has been described in which the high rigid plate 11b is disposed on the carriages 5a to 5d. However, the present invention is not limited thereto. You may make the front-end | tip part of a movement direction contact directly.

  Further, in the present embodiment, the case where the guide 10a having wear resistance is disposed at the position where the roller 9 of the groove 10 contacts, but the present invention is not limited to this, and the guide 10a is not necessarily disposed. You may.

DESCRIPTION OF SYMBOLS 1 ... Fixed end side fixed girder, 2a, 2b ... Movable end side fixed girder, 3 ... Branch girder, 3a ... 1st branch girder, 3b ... 2nd branch girder, 3c ... 3rd branch girder, 3d ... 4th branch girder , 4, 5a, 5b, 5c, 5d: trolley, 6a, 6b: driving device, 7: connecting shaft, 8: arm, 9: roller, 10: groove, 10a: guide, 11: trolley stopper, 11a: elastic body .., 11b... Abutment plate, 11 c... A truck stopper beam, 20... An electric motor, 31 a, 31 b, 31 c... A connecting part, 32, 33.

Claims (6)

A plurality of branch digits connected in series;
A bogie that supports the branch girder and moves with the branch girder,
A driving device for moving the branch girder;
A bogie stopper disposed at the end position in the moving direction of the bogie, the bogie that the moved bogie contacts,
With
The driving device includes two arms that pivot in a plane horizontal to the moving direction of the branch girder, and a roller provided at an end opposite to a pivot point of each of the two arms. Have
The roller is engaged with a groove provided on a lower surface of the branch girder along a longitudinal direction thereof,
The two arms move the branch girder by turning while the roller is engaged with the groove,
At a position where the longitudinal direction of each of the two arms and the longitudinal direction of the branch girder are substantially orthogonal to each other at an angle of 90 ° ± 1 °, the bogie comes into contact with the bogie stopper to stop the movement of the branch girder. Complete the conversion of the branch girder,
Switch for straddle type monorail. The bogie stopper has a bogie stopper beam against which a front end of the bogie moves.
The trolley stopper beam has a vertical portion erected in a vertical direction, and an elastic body disposed on a surface of the vertical portion facing the trolley,
The cart has a backing plate disposed at a tip end in the moving direction of the cart,
By stopping the movement of the branch girder by the abutment plate is in contact with the elastic body,
The branching device for a straddle-type monorail according to claim 1.   The branching device for a straddle-type monorail according to claim 2, wherein the bogie stopper beam further includes a pair of horizontal portions extending from both ends in the height direction of the vertical portion toward the bogie.   4. The straddle-type monorail branch device according to claim 3, wherein the horizontal portion covers end faces in a height direction of the backing plate and the elastic body when the backing plate comes into contact with the elastic body. 5.   The splitter for a straddle-type monorail according to claim 1, wherein a guide having wear resistance is arranged at a position of the groove portion where the roller contacts.   The splitter for a straddle-type monorail according to claim 2, wherein a surface of the abutment plate that comes into contact with the elastic body is processed to increase friction.

Images