JPH04161504A - Railway turnout device - Google Patents

Abstract

PURPOSE:To make the structure of a moving device simple by a method wherein traction members are passed over a driving wheel and a driven wheel that are provided on both sides of a turnout track laid over a floor surface, and the direction in which the turnout track is hauled is switched by operation of motors that drive the driving wheel and the driven wheel in normal or reverse rotations. CONSTITUTION:Trucks 1 and 2 are positioned on both sides of a turnout track C. Each of the trucks 1 is equipped with a driving motor 21 and a driving sprocket 24 that is provided coaxially on the motor shaft, and each of the trucks 2 on the opposite side is equipped with a driven sprocket 25 that turns freely. Chains 22 are laid, passing the underside of the turnout track C, and are passed over sprockets 24 and 25 with both the ends thereof fixed to the trucks 1 and 2. Closed loops are formed of the chains 2 and the trucks 22 and the trucks 1 and 2, each of which is connected with a connecting rods. When switching of the track is required, movable girders C1-C4 on the trucks 1 and 2 are moved with the direction in which the turnout track is hauled switched by operation of the motors 21 which turn either in normal or reverse rotation. Thereby the structure of the moving device can be simplified while the costs therefor are reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a branching device for switching routes in magnetic levitation railways and the like.

[Conventional technology]

For example, in magnetic levitation railways, high-speed single-opening branching devices are used to allow high-speed trains to overtake slow trains at intermediate stations, and terminal branching devices are used to distribute arriving trains to multiple platforms at terminal stations. Various types of branching devices are used.

Further, as a branching method using this branching device, for example, Japanese Patent Application Laid-Open No. 59-134201 and Japanese Patent Application Laid-Open No. 59-1342
As shown in both publications, a movable girder with a U-shaped cross section is mounted on a truck, and this truck is moved on the floor by a moving device to move the branch track between the reference position and the branch position. A traverser method is generally used.

The outline of this traverser type branching device is shown in Figures 10 to 13.
This will be explained using figures.

In Figure 10.11, A1 is a fixed girder on the branch start point side of the reference line (main track), A2 is a fixed girder on the end point side, B is a fixed girder on the proximal side of the branch line (side track), and C is a branch track. , this branch track C is connected to the branch end point side fixed girder A2 of the reference line on the floor surface D (see Fig. 13), with the branch start point side end (vertical pin P) as a fulcrum, and the branch end point side end connected to the branch end point side fixed girder A2 of the reference line. 10th to be done
By moving between the reference position shown in the figure (straight line state) and the branch position shown in Fig. 11 (nearly curved state) where the branch end point side end is connected to the proximal side fixed girder B of the branch line, The train route is switched between the reference line and the branch line.

This branch track C has a plurality of movable girders C□ to C4 (four in the case of turning, described in this case below) arranged in the elongated direction and having a U-shaped cross section, at the ends where adjacent ones face each other. and are connected so as to be relatively rotatable around a vertical axis Q.

Although not shown, each fixed girder A, A2. B and each of the movable girders C□ to C4 are provided with guide paths for laterally guiding the train on the upper surfaces of both left and right sides.

The branch trajectory C includes opposing ends of each movable girder C1 to C4 (hereinafter referred to as the first to fourth movable girders in order from the branch start point side),
At the tip of the movable end girder C4 on the end point side, it is movably supported by the left and right sets of carts 1 and 2, respectively.

As shown in FIG. 12.13, the assembled carts 1 and 2 are connected so as to be able to move together as a unit by a connecting rod 3, and the carts 1 and 2 are driven by a moving device to be described later, and the cart rails E... ( (See FIG. 13) By traveling in the left-right direction on the top, each of the movable girders C to C4 moves and the branch track C is switched between the reference position and the branch position.

The moving device is constituted by both branching and return tensioning mechanisms Fl..., F2... provided on both left and right sides of the floor surface with the branching track C in between for each assembled truck.

In addition, FIG. 12 illustrates the tension mechanisms F□ and F2 for both the third and fourth movable girders C3 and C4.

Both tension mechanisms F1. F2 consists of cylinders (hydraulic cylinders) 4 and 5 and a chino 6.7, each serving as a driving source.

Both chains 6, 7 are fastened at one end to the carts 1, 2, and at the other end to fasteners 8, 9 fixed on the floor, respectively, and the intermediate parts of the chains 6, 7 are fixed to the cylinders 4, 7. a drive sprocket 10.11 mounted on the rod end of 5;
It is hung on fixed sprockets 12 and 13 fixed to the floor.

In this configuration, at the time of branching, the cylinder 4 of the branching tension mechanism F□ is contracted as shown in FIG.

At this time, the cylinder 5 of the return tension mechanism F2 extends while applying a braking force to the traction force, thereby preventing the bogies 1 and 2 (movable girders 01 to C4) from running out of control due to the influence of wind, etc. Its movement is controlled.

Furthermore, during this movement of the movable girder, the operating speeds of both cylinders 4 and 5 are controlled and synchronized between the tension mechanisms F1..., F2... so that adjacent movable girders do not come into contact with each other. .

On the other hand, when returning to the reference position, Figs. 10 and 12
As shown in the figure, contrary to the above-mentioned branching, the cylinder 5 of the return tensioning mechanism F2 operates to contract as a traction side, and the cylinder 4 of the branching tensioning mechanism F2 operates to extend as a brake side.

In Figure 10.11, 14... is a branch side stop member for stopping each movable girder C-C4 at the branch position, 15...
* is a return side stopping member for stopping each movable girder C1 to C4 at a reference position.

[Problem to be solved by the invention]

However, in this way, there are cylinders 4.
According to the conventional device in which a tension mechanism F1+F2 driven by the cylinders 5 and 5 is provided, and one of the cylinders 4 and 5 on both sides pulls while the other applies the brake, there are the following drawbacks.

(I) Since cylinders 4.5 as driving sources are required on both sides, the equipment for the entire moving device including hydraulic piping for the cylinders becomes large-scale, resulting in high equipment and construction costs.

(]I) Due to the increase in the number of cylinders and piping,
Important daily maintenance on railways has become troublesome,
Maintenance costs also increase.

(III) Cylinder control to synchronize each tension mechanism must be performed for cylinders 4..., 5... on both sides, so this is especially true in the case of long branch tracks with many movable digits. This makes cylinder control difficult, and in practice it is difficult to achieve synchronization.

For this reason, there are problems with operational reliability, such as contact between movable girders due to loss of synchronization, and so-called girder breakage in which movable girders rotate more than necessary.

(IV) Difference in cylinder pressure between the towing side and the brake side (for example, 130 by/cd on the towing side, 90%/cd on the brake side)
Since it is driven by a differential pressure of 40 kg/c+/), there is a lot of wasted energy and high operating costs. Moreover, both sides tension mechanism F1. As the load on F2 increases, these components must be constructed with high strength, which further increases the equipment cost.

Therefore, the present invention simplifies the configuration of the moving device, reduces equipment costs, construction costs, and operating costs, and facilitates maintenance. In addition, synchronized operation of each movable girder is easy, and the reliability of switching operation is improved. This provides a railway branching device that is rich in features.

[Means to solve the problem]

The present invention consists of a plurality of movable girders mounted on a bogie arranged in the longitudinal direction, adjacent movable girders connected to each other so as to be rotatable around a vertical axis at each end to form a branch track. The movable girder at the end of the branch end point is moved on the floor between the reference position where it is connected to the reference line and the branch position where it is connected to the branch line, using the branch start point side end as a fulcrum. A railway that switches routes includes a moving device that moves the branch track between the reference position and the branch position, and the moving device is provided on one of both sides of the floor across the branch track. A driving wheel provided on the other side, a driven wheel provided on the other side, a motor for driving the driving wheel in forward and reverse rotation, and a motor that passes between the driving wheel and the driven wheel passing under the branch track, and has both ends of the drive wheel provided on the branch track. The device is equipped with a tensioning mechanism having traction members fastened to both sides.

[Effect]

According to this configuration: (1) In the tension mechanism, since the pulling direction of the branch track can be switched by forward and reverse rotation of the motor, only one drive source (motor) is required that is common to the branch side and the return side. Therefore, the configuration of the entire mobile device can be significantly simplified.

(2) By reducing the number of drive sources and simplifying the associated equipment, daily maintenance, which is extremely important for railways, will become easier and maintenance costs will also be reduced.

(3) When a moving device is configured with multiple tension mechanisms or a combination of tension mechanisms and other types of mechanisms, synchronized operation is facilitated by reducing the number of drive sources, and contact between movable girders due to loss of synchronization can be avoided. This prevents so-called girder breakage, where the movable girder rotates more than necessary, and improves the reliability of the switching operation.

(4) In the pulling mechanism, a closed loop body is formed by the pulling member and the branch track (truck or movable girder), and this closed loop body is driven to rotate in the forward or reverse direction by the motor. The force acts as a traction force and a braking force at the same time. For this reason, both sides are cylindrical as before.

There is no waste of energy as would be the case when moving a movable girder using a pressure difference of 2.5 mm, and the branch track can be moved with the minimum amount of power required.

〔Example〕

Embodiments of the present invention will be described with reference to FIGS. 1 to 9.

In the following embodiments, parts that are the same as those shown in FIGS. 10 to 13 are denoted by the same reference numerals, and redundant explanation thereof will be omitted.

1st Embodiment (See Figures 1 to 4) In Figures 1 and 2, G... is a tension mechanism for both branching and return, which is provided for each assembled truck.
These constitute a moving device that moves the branch track C between the reference position and the branch position.

In addition, in Figures 3 and 4, both the third and fourth movable girders C3,
The details of the tension mechanism G for C4 are shown as an example.

Each tensioning mechanism G includes one motor (usually a hydraulic motor, but an electric motor may also be used) 21 as a driving source, and a cenograph 22 pulled by the motor 21.

The motor 21 is attached to either the left or right side of the floor across the branch track C via a motor stand 23, and a drive sprocket 24 as a drive wheel is attached to the rotating shaft of the motor 21.

On the other hand, on the opposite side of the floor surface, a driven sprocket 25 as a driven wheel is rotatably mounted via a sprocket mounting base 26.

The chino 22 passes below the branched track C and extends between the driving and driven sprockets 24 and 25, and its both ends are fixed to the carts 1 and 2 on both sides.

In this way, a closed loop body is formed by the chino 22, the carts 1 and 2, and the connecting rod 3, and this closed loop body is configured to be rotationally driven in both forward and reverse directions by the forward and reverse rotation of the motor 21.

That is, when changing the path from the reference state shown in FIG. 1 to the branched state shown in FIG. 2, the motor 21 of each tensioning mechanism G... rotates in the normal direction, so that the ceno 22 is pulled in the direction of the arrow in FIG. The carts 1 and 2 (movable girders 01 to C4) are pulled in the direction of arrow A.

On the other hand, when returning from the branch position to the reference position, motor 2
1 rotates in the reverse direction, and the cheno 22 is pulled in the direction opposite to the direction of the arrow in FIG.
) moves toward the reference position.

During this movement, if the trolley 1.2 attempts to move at a speed higher than the pulling speed of the motor 21 due to the influence of wind or earthquake, the motor 21 exerts a braking action and the predetermined speed is maintained unless the cheno 22 is cut off. Since the moving speed of the cart is maintained, it is possible to reliably prevent the cart 1.2 (movable girders 01 to C4) from running out of control.

As shown in Fig. 3.4, the sprocket stand 26 is mounted with push bolts 27, 27 so that its position can be adjusted in the left and right direction within the range of the elongated holes 26a, thereby reducing the tension of the chino 22. It is configured so that it can be adjusted appropriately.

Second embodiment (see Figure 5) Only the differences from the first embodiment will be explained.

In the first embodiment, each set carriage 1, 2 (each movable girder 01 to C4)
However, in the second embodiment, on the branch starting point side bogie between the first and second movable girder C+02, which has a small amount of movement, as for 2, Instead of the tension mechanism G, both branching and return hydraulic cylinders Z1. It is configured to be driven by JC2.

The rod ends of both hydraulic cylinders I□ and x2 are directly connected to the trolleys 1 and 2, respectively, and when branching, the branch hydraulic cylinder I□ operates to contract, and the return side hydraulic cylinder x2 operates to extend, and when returning, it operates in the opposite direction. By doing so, the branch starting point side carts 1 and 2 are directly towed.

This configuration simplifies the equipment and facilitates maintenance compared to the first embodiment.

Note that a hydraulic cylinder may be provided on only one side for both branching and return purposes, and the branch start point side carts 1 and 2 may be moved in the branching direction and the return direction by the push and pull action of this hydraulic cylinder.

Third Embodiment (See Figures 6 to 8) In both the first and second embodiments, all of the assembled bogies were driven, but in the third embodiment, the entire branch track was driven by a single track. It is driven by a tension mechanism G.

That is, the tension mechanism G is provided only for the fourth movable girder C4, and both adjacent movable girders are provided on both sides of the opposing ends of each movable girder 01 to C4 (inner soft side and outer track side in the track branch state). Both inner soft side and outer track side stoppers 28, 29 are provided to restrict the relative rotation of the fourth movable girder C4 by the tension mechanism G. I am trying to communicate this to C□.

In Figures 7 and 8, both the third and fourth movable girders C3,
Stoppers 28, 29 provided at opposite ends of C4
The details are shown using an example.

As shown in the figure, the stoppers 28 and 29 on both sides are stopper bodies 28a and 29 made of a cushioning material such as rubber.
a, and this stopper body 28a.

Abutment plates 28b, 29b fixed to the distal end surface of 29a,
It consists of mounting brackets 28c and 29c fixed to the base end surfaces of the stopper bodies 28a and 29a, and the mounting brackets 28c,
29c is embedded and fixed in the end face of the movable beams 01 to C4.

Among these, the inner soft side stoppers 28 and 28 form a gap S between them in the trajectory reference state as shown in FIG. 6, and when the trajectory diverges, as shown in FIG. 28b, 28b) are provided in close contact with each other.

The above-mentioned gap S is inclined at the same angle θ as the angle between the adjacent movable girders in the track branching state, and when the stoppers 28 and 28 come into close contact with each other at the time of branching, the movable girder C3,
The relative rotation amount of C4 is regulated to a predetermined magnitude.

On the other hand, the outer rail side stoppers 29.29 come into close contact to restrict the movable girders C3 and C4 to a straight line state as shown in Fig. 6 when switching from the branched state to the reference state, and apart otherwise. It is provided.

In this configuration, when switching the trajectory from the reference position to the branch position, the fourth movable girder C4 rotates in the direction of the arrow in FIG. The inner soft stoppers 28 and 28 come into contact with each other at opposite ends of the girder C3 (the state shown in FIG. 8).

As a result, the moving force of the fourth movable girder C4 is reduced to this stopper 2.
8.28 to the third movable girder C3, and thereafter the same action is performed between other movable girders, causing the other movable girders C32 to C1 to follow the fourth movable girder C4 and reach the branch position. Move to.

In addition, when changing the trajectory from the branched state to the standard state (returning), the moving force of the fourth movable girder C4 is applied to each of the other movable girders 03 to C on the outer track side of each other. Stopper 29...
The other movable girders 03 to C1 similarly return following the fourth movable girder C4.

Note that an oil damper or a hydraulic cylinder may be used as the stopper.

According to this configuration, only one tensioning mechanism G is required for the fourth movable girder C4, so the configuration of the moving device as a whole of the branch track is far simplified compared to the conventional and the first embodiment, and the equipment is It's easy.

In addition, since only one tension mechanism G is required, there is far less risk of failure, and there is no need to synchronize between motors, making motor control easier, increasing the certainty and reliability of switching operation. becomes even higher.

In addition, in this third embodiment, both ends of the cheno 22 in the tension mechanism G are connected not to the cart 1.2 of the fourth movable girder C4, but to the movable girder C4 itself (usually the side surface of the central part in the elongated direction).
The movable girder c4 is connected directly to the movable girder c4.

This eliminates traction errors caused by relative movement (sliding) of the movable girder c4 with respect to the bogie 1.2, making it possible to accurately grasp the girder movement position and perform reliable movement control. wear can be reduced.

Fourth embodiment (see Figure 9) In the fourth embodiment, the movement of the branch track C from the reference position to the branch position is based on the configuration of the third embodiment (configuration that drives only the fourth movable girder C4). The tension mechanism G is configured such that at the starting point and at the end point of movement from the branch position to the reference position, the moving force to the fourth movable girder C4 is applied as a pulling force in the direction perpendicular to the branch trajectory C at the reference position. ing.

In this way, during the movement of the branch track C, a tensile force in the girder length direction acts on each of the movable girders below the fourth movable girder C4 as a component of the tensile force applied to the fourth movable girder C4.

As a result, the bending angle of each movable girder during orbital movement is kept small, eliminating wasteful movements such as repeated collisions and separations between stoppers between adjacent movable girders, and the conversion operation is performed smoothly. In addition, the chances of contact between the stoppers 31 and 32 are reduced, and even if they contact each other, the pressing force that acts between the stoppers is reduced, so that the stoppers 31 and 32
．． The load burden on the stoppers 31 and 32 is reduced, and the life of the stoppers 31 and 32 can be improved.

Other Embodiments (I) When the branch track C is made up of a long length with a large number of movable girders, the traction force is insufficient in a configuration in which only the end movable girder on the branch end point side is pulled as in the third embodiment. There is a possibility that the movable girder on the branch fulcrum side may not be fully reached.

Therefore, a configuration may be adopted in which every other movable girder including the end movable girder is driven by a tension mechanism (for the branch start point side truck, a direct drive system using a hydraulic cylinder as shown in the second embodiment may be used).

(n) In the above embodiment, a chain transmission mechanism was used as a mechanism for transmitting the rotational force of the motor 21 to the branch track as a moving force, but a belt or rope was used instead of the chain 22, and a pulley was used instead of the sprockets 24 and 25. May be used.

〔Effect of the invention〕

As described above, according to the present invention, a drive wheel provided on one of both sides of the branch track on the floor, a driven wheel provided on the other side, and a motor that drives the drive wheel in forward and reverse rotation. , since the tensioning mechanism of the moving device is constituted by a traction member passing under the branched track between the driving wheel and the driven wheel and having both ends fixed to both sides of the movable girder,
It has the following effects.

(1) In this tension mechanism, the pulling direction of the movable girder can be switched by forward and reverse rotation of the motor;
The motor as the drive source is common to the branch side and return side.
I'm done. Therefore, the configuration of the entire mobile device can be significantly simplified, and equipment costs and construction costs can be significantly reduced. (2) By reducing the number of drive sources and simplifying the accompanying equipment, Daily maintenance, which is extremely important for railways, will be much easier than before, and will be extremely beneficial to ensuring railway safety. In addition, maintenance costs are also much lower.

(3) When a moving device is configured with a branch track using multiple tension mechanisms or a combination of a tension mechanism and other types of mechanisms, synchronized operation is facilitated by reducing the number of drive sources, and the movement of movable girders due to synchronized streaks is facilitated. The reliability of the switching operation is increased by preventing contact and so-called breakage of the movable girder, which occurs when the movable girder rotates more than necessary.

Therefore, it is highly effective in terms of safe and smooth transportation.

(4) Since the motor driving force acts as a traction force as well as a braking force to prevent the movable girder from running out of control, there is no energy wastage unlike in the conventional case where the movable girder is moved by differential pressure between cylinders on both sides. The movable girder can be moved with the minimum necessary power. Therefore, operating costs are reduced.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view of the trajectory reference state showing the first embodiment of the present invention, FIG. 2 is a schematic plan view of the same trajectory branching state, FIG. 3 is a partially enlarged view of the state shown in FIG. 1, and FIG. The figure is Figure 3 IV-IV
5 is a schematic plan view in a trajectory reference state showing a second embodiment of the present invention, FIG. 6 is a schematic plan view in a trajectory branching state showing a third embodiment of the present invention, FIG. FIG. 8 is a partially enlarged plan view of the trajectory reference state and the branched state in the same embodiment, FIG. 9 is a partially schematic plan view of the trajectory reference state showing the fourth embodiment of the present invention, and FIG. 10 is a conventional 11 is a schematic plan view of the device in a trajectory reference state, FIG. 11 is a schematic plan view of the same trajectory branching state, FIG. 1-2 is a partially enlarged view of FIG. 1-1, and FIG.
The figure is a sectional view taken along the line a-a in FIG. 12. C...branch track, C engineering~C4...movable girder constituting the branch track, 1, 2...bogie, G...tension mechanism, 2
1... Motor as a driving source for the tension mechanism, 22...
- Chaino as a traction member, 24... Drive sprocket as a drive wheel, 25... Driven sprocket as a driven wheel. Patent Applicant: Railway Technical Research Institute, Ltd. Kobe Steel, Ltd. Figure 7 Figure 9 Figure 8 Figure 29-)A (19c)

Claims (1)

[Claims] 1. Arrange multiple movable girders mounted on a trolley in the longitudinal direction,
Adjacent movable girders are connected to each other so that they can rotate around a vertical axis at their ends to form a branch track, and this branch track is connected to the movable girder at the end of the branch with the end on the branch start point side serving as a fulcrum. In a railway where the train's route is switched by moving on the floor between a reference position where it is connected to a reference line and a branch position where it is connected to a branch line, the branch track is moved between the reference position and the branch position. The moving device is equipped with a moving device that moves the
A driving wheel provided on one of both sides of the branch track on the floor surface, and a driven wheel provided on the other side;
A tensioning mechanism includes a motor that drives the drive wheel in forward and reverse rotation, and a traction member that passes below the branch track, extends between the drive wheel and the driven wheel, and has both ends fixed to both sides of the branch track. A railway branching device characterized by: