JP2677158B2 - Drive device for railroad change truck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive system for a railroad track changing carriage for a railway vehicle for direct train operation between railroad tracks having different gauges.

[0002]

2. Description of the Related Art Distance between two rails on the left and right, which are laid to run a railroad vehicle, so-called gauge (track gauge)
In general, various gauges from narrow gauge to wide gauge are used, but most of them are 1435 mm gauge (standard gauge).
Is used. In Japan, the standard gauge is used for some Shinkansen bullet trains and private railways, but generally 1067 mm, which belongs to narrow gauge, is used.

Therefore, for example, between railroad tracks having different gauges, such as the Shinkansen and conventional railroads, it has been impossible to drive one train directly into the other railroad track. Therefore, in order to travel using a plurality of railways with different gauges, it is necessary to change trains, which is inconvenient and time-consuming.

As a method for eliminating such a drawback, a trolley replacement method and a slide method are known. The slide system shown in FIGS. 3A and 3B has been put to practical use overseas as a gauge changing carriage that enables a direct train operation between tracks with different gauges. According to this method, bearing boxes 22 and 23 provided at both ends of an axle 21 fitted with a wheel 20 are mounted on a bogie frame 18
It is configured to be slidably fitted to a bearing support frame 19 provided on the above, and to be fixed to a standard gauge gauge and a wide gauge gauge. In addition, FIG. 3A shows a state of traveling on a track of standard gauge,
B is a state of traveling on a wide-gauge track.

Since the conventional gauge changing carriage shown in FIGS. 3A and 3B does not have its own drive unit, it has to be towed by a locomotive.

Further, in the parallel cardan type drive device adopted in the conventional electric bogie, as shown in FIG. 4, the left and right wheels 24 are fitted on the same axle 25, and a large space is provided between the left and right axles. A gear 10 is provided, and a small gear 9 meshing with the large gear 10 is driven by a motor 8. Therefore, it was not possible to directly drive the conventional gauge changing carriage shown in FIGS. 3A and 3B by applying the parallel cardan type driving device.

[0007]

As described above, since the conventional gauge changing carriage has no drive unit, it must be towed by a locomotive. However, locomotives cannot operate directly across different gauges. Therefore, it is necessary to prepare a locomotive corresponding to each gauge and replace the locomotive.

In view of the above-mentioned situation, the present invention provides a drive system for a railroad vehicle gauge changing carriage which enables direct operation without a locomotive in order to save the trouble of replacing the locomotive when changing the gauge. is there.

[0009]

In order to achieve the above-mentioned object, a drive system for a railroad track changing carriage of the present invention comprises:
A gauge change truck with a pair of independent wheel shafts provided with one wheel on the same axis and moved in opposite directions in the left-right direction to change the wheel spacing so that direct running between tracks of different gauges is possible In, the drive device is arranged between the left and right axles, and the axle and the drive device are connected via a gear type internal joint that allows a large displacement in the left-right direction.

[0010]

[Operation] When the gauge changing carriage approaches the gauge changing point and the vehicle body is lifted by the gauge changing device to the extent that the wheel axle is unloaded, the left and right wheel axles are moved in the opposite directions by the actuators such as hydraulic cylinders, so that By fixing the bearing to the bearing support cylinder when the gauge becomes standard, the gauge can be changed easily and surely.

Incidentally, the gear type internal joint connecting the axle and the drive unit is joined to each other through the gears on the axle side and the drive unit side, and the gear meshing position on the axle side is largely displaced in the left and right direction to change the gauge. The driving device side is configured to be meshed with a gear so that the driving device is allowed to move up and down and back and forth due to a change in vehicle body weight. Therefore, even if the weight of the vehicle body changes due to an increase or decrease in the number of passengers, the power is always reliably transmitted.

[0012]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional front view showing the left and right wheel shafts of a gauge changing carriage according to an embodiment of the present invention and a drive device interposed therebetween. A pair of axles 4 fitted with one wheel 3 are coaxially opposed to each other, and axle boxes 5 provided at both ends of each axle 4 are attached to a wheel axle support frame 1 provided on a side beam of a bogie frame, and an axle box 6 is a bogie. The left and right wheel shafts are separately supported by being slidably incorporated in the wheel shaft support frames 2 provided on the supporting arms projecting inwardly from the lateral beams formed at both ends of the frame so as to be slidable in the left and right directions.

The drive device 7 is mounted on the support beam 13 provided in the front-rear direction at the lateral center of the bogie frame between the left and right wheel axles.
From the support receiving seat 26 of the trolley frame 1 by the drive device supporting device.
Attach to 8. A large gear 10 of the moving device 7 is rotatably supported by a gear box 13 via a bearing 12 of a shaft 11,
As shown in A and B, a small gear 9 and a large gear 10 rotated by a motor 8 suspended from a bogie frame mesh with each other.

A deep inner hole is formed on the inner end side of the left and right axles 4, and an inner gear 17 having tooth profiles aligned in the axial direction on the inner peripheral surface thereof.
On the other hand, the shaft 11 of the large gear 10 is provided with shallow inner holes on both sides, and an inner gear having tooth profiles aligned in the axial direction is provided on the inner peripheral surface thereof. Then, the external gear 14 provided at one end of the shaft 16 meshes with the internal gear of the shaft 11, and the external gear 15 provided at the other end meshes with the internal gear 17 of the axle 4 to form a gear type internal joint. .

The state shown in FIG. 1 is a state in which the left and right axles 4 are both positioned on the drive device 7 side and maintain a narrow gauge gauge. Then, when the left and right axles 4 are respectively moved outward, a state in which the standard track gauge indicating a part of the wheel by the chain double-dashed line is maintained.

FIG. 2A shows the relationship between the left and right wheel shafts on the narrow gauge gauge and the driving device, and FIG. 2B shows the relationship on the left and right wheel shafts between the standard gauge gauge and the driving device. As shown,
The external gear 14 that meshes with the internal gear of the large gear 10 is hardly displaced to the left and right, but the meshing position of the external gear 15 that meshes with the internal gear 17 of the left and right axles 4 is largely displaced to the left and right to change the gauge.

[0017]

By providing the drive system directly on the gauge changing carriage, direct running between the tracks of different gauges is possible without being pulled by the locomotive, and the trouble of replacing the locomotive when changing the gauge can be saved.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view showing left and right wheel axles of a gauge change carriage according to an embodiment of the present invention and a drive device interposed therebetween.

FIG. 2 is a plan view showing a gauge changing state of a gauge changing carriage according to an embodiment of the present invention, where A is a narrow gauge gauge and B is a standard gauge gauge.

FIG. 3 is an explanatory view showing an example of a conventional gauge changing carriage without a drive device, where A is a narrow gauge gauge and B is a wide gauge gauge.

FIG. 4 is a plan view showing a main part of a parallel cardan type drive device used in a conventional electric cart.

[Explanation of symbols]

 1, 2 Wheel axle support frame 3 Wheel 4 Axle 5, 6 Axle box 7 Drive device 8 Motor 9 Small gear 10 Large gear 11 Shaft 12 Bearing 13 Gear box 14, 15 External gear 16 Shaft 17 Internal gear 18 Bogie frame 19 Bearing support frame 20 wheels 21 axles 22 and 23 bearing box 24 wheels 25 axles 26 support seats

Claims (1)

(57) [Claims] 1. A pair of independent wheel shafts, each having one wheel, are provided on the same axis, and the wheels are moved in opposite directions in the left-right direction to change the wheel spacing so that direct running between tracks of different gauges is possible. In the above-mentioned gauge changing carriage, a driving apparatus is arranged between the left and right axles, and the gauge changing carriage for a railway vehicle is connected by connecting the axle and the driving apparatus through a gear type internal joint that allows large lateral displacement. apparatus.