JP4245432B2 - Aerodynamic brake equipment for railway vehicles - Google Patents

Description

  The present invention relates to an aerodynamic brake device for a railway vehicle mainly used for emergency stop.

  2. Description of the Related Art Conventionally, as an aerodynamic brake device in a high-speed railway vehicle, a movable flat plate is provided so as to be rotatable about a rotation shaft fixed to a vehicle body at an upper portion of a gap of a connecting portion. One that can be raised and lowered by a cylinder is known (see, for example, Patent Document 1). In normal operation (when aerodynamic braking force is not generated), this device is placed with the movable plate lying on the roof so that it does not receive air resistance (traveling wind resistance) in parallel with the traveling wind. On the other hand, when aerodynamic braking force is generated, the movable flat plate is rotated around the rotation axis by a hydraulic cylinder, the movable flat plate is opened obliquely, and the air resistance received by the movable flat plate is increased to obtain a large braking force. It is.

  However, such an aerodynamic brake device has a rotating shaft orthogonal to the vehicle traveling direction, and generates a necessary aerodynamic braking force by rotating a movable flat plate (aerodynamic plate) by a predetermined angle around the rotating shaft. Therefore, it is necessary to rotate the movable flat plate against the wind pressure in the vehicle traveling direction, and a large driving force is required to generate the aerodynamic braking force.

  Therefore, it is necessary to develop a movable flat plate (aerodynamic brake plate) using a hydraulic cylinder (hydraulic device) that can generate a large driving force, which increases the weight of the entire aerodynamic brake device and makes the hydraulic cylinder itself complex. Mechanism. In addition, it is necessary to increase the rigidity of the vehicle structure in order to receive the reaction force, which increases the weight.

Therefore, when the aerodynamic brake plate is deployed, the applicant has a configuration in which the aerodynamic brake plate protrudes in a direction perpendicular to the vehicle traveling direction, so that the deployment of the aerodynamic brake plate is not significantly affected by wind pressure. An aerodynamic brake device has been developed and filed earlier (see, for example, Patent Document 2).
Japanese Patent No. 3396234 (paragraph numbers 0012 and 0013) JP 2003-2194 A (paragraph numbers 0006, 0029 to 0036)

  If the aerodynamic brake plate is configured to protrude in a direction perpendicular to the vehicle traveling direction, an amount corresponding to the stroke amount that causes the aerodynamic brake plate to protrude is required as the stroke amount of the actuator. The required private space tends to increase.

  In addition, since the aerodynamic brake plate (slider) is slid linearly with respect to the vehicle body (guide rail), it is desirable that there are many points (sliders) to hold the aerodynamic brake plate in order to ensure stable linear movement. .

  Further, since the holding point (slider) moves, it is necessary to increase the rigidity of the aerodynamic brake plate on the assumption that wind pressure acts over the entire moving range.

The invention according to claim 1 is an aerodynamic brake device for a railway vehicle in which an aerodynamic brake plate is protruded upward from the inside of the vehicle body, and a braking force is generated by the protruded aerodynamic brake plate . A rotating shaft in the vehicle longitudinal direction, an aerodynamic brake plate rotatably provided on the rotating shaft and rotating in a vertical plane, a drive cylinder having one end connected to the aerodynamic brake plate and the other end connected to the vehicle body, Guide means provided between the vehicle body and the aerodynamic brake plate for guiding the rotation of the aerodynamic brake plate in the vertical plane.

  In this way, the aerodynamic brake plate is rotatably supported by the rotary shaft, the drive cylinder and the guide means, and the aerodynamic brake plate rotates around the rotary shaft by extending the drive cylinder. And protrudes upward from the vehicle body. In this way, the aerodynamic brake plate protruding above the vehicle body (for example, on the roof) receives air resistance and exhibits an aerodynamic brake effect.

  Further, as in the technique described in Patent Document 2, when the aerodynamic brake plate is pushed straight up, the aerodynamic brake plate is pushed up in the vertical or oblique direction, and thus has a stroke corresponding to the push-up distance as described above. Required for drive cylinder. On the other hand, since the invention of claim 1 pushes up the vehicle body by rotating the aerodynamic brake plate, there is no need for the drive cylinder to have a stroke corresponding to the push-up distance as in the case of pushing straight forward. By devising the connection point (position) between the aerodynamic brake plate and the drive cylinder, the stroke of the drive cylinder can be shortened.

  For this reason, the exclusive space of the whole system can be reduced. Since the exclusive space of the entire system can be reduced, surplus space generated by reducing the exclusive space can be used as a storage space for a trash can or an electric device.

  Further, since the aerodynamic brake plate is rotatably supported by the rotation shaft, it is sufficient that it is supported at least in one place (guide means), and the structure can be simplified.

  In this case, as described in claim 2, the aerodynamic brake plate has a rotation center portion disposed on the vehicle body center side and is rotatably supported by the vehicle body, and the guide means is provided on the vehicle body side. And a guide rail provided on the aerodynamic brake plate and slidably engaged with the slider.

  In this way, the slider on the vehicle body side is slidably engaged with the guide rail of the aerodynamic brake plate, so that the engagement position (that is, the portion that supports the aerodynamic brake plate on the vehicle body) is the aerodynamic brake plate. It does not change during the rotation (deployment) operation. Therefore, if the rigidity of the portion (in the vicinity of the slider) is increased, sufficient support rigidity is ensured. Therefore, even if the aerodynamic resistance acting on the aerodynamic brake plate changes during operation, it can sufficiently counteract.

  According to a third aspect of the present invention, the aerodynamic brake plate is fan-shaped, and its rotation center is disposed on the center of the vehicle body and is rotatably supported by the vehicle body. It may be configured to have a vehicle-side guide roller that contacts the outer peripheral surface of the brake plate and guides the protruding operation of the aerodynamic brake plate.

  In this way, when the aerodynamic brake plate protrudes due to the operation of the drive cylinder, the outer peripheral surface of the aerodynamic brake plate rotates while being guided by the guide roller, and the aerodynamic brake plate protrudes. Therefore, when the aerodynamic brake plate is deployed above the vehicle body while receiving air resistance, the aerodynamic brake plate rotates smoothly (protrusions).

  According to a fourth aspect of the present invention, the aerodynamic brake plate, the drive cylinder, and the guide means are configured as a brake unit, and the brake unit is disposed in a hollow partition wall that partitions the vehicle compartment from the vehicle compartment or the passage. It can be set as the structure arrange | positioned.

  In this way, since the brake unit that requires a certain amount of exclusive space is arranged in the hollow partition wall that partitions the vehicle compartment from the vehicle compartment or the passage, the internal space of the partition wall that tends to be a dead space is effectively used. Can be used.

  According to the first aspect of the present invention, the rotational force is used to push the aerodynamic brake plate upward of the vehicle body, so that the stroke of the drive cylinder can be shortened and the exclusive space of the entire system can be reduced. Since the exclusive space of the entire system can be reduced, the surplus space generated by the reduction can be effectively used as an installation space for a trash can or an electric device.

  According to the second aspect of the present invention, since the position for supporting the aerodynamic brake plate (support by the rotating shaft and support by the guide means) does not change, the support rigidity of the aerodynamic brake plate can be increased only by increasing the rigidity in the vicinity of the position. It can counteract aerodynamic resistance acting during operation.

  According to the third aspect of the present invention, since the outer peripheral surface of the aerodynamic brake plate is guided by the guide roller during the protrusion operation of the aerodynamic brake plate, the aerodynamic brake plate is smoothly rotated for the protrusion.

  In the invention of claim 4, since the brake unit is disposed in the hollow partition wall that partitions the vehicle compartment and the vehicle compartment or the passage that are likely to become dead spaces, the internal space of the partition wall can be used effectively.

  The purpose of providing an aerodynamic brake device for railcars that is advantageous for downsizing by reducing the exclusive space was realized by rotating the aerodynamic brake plate in the vertical plane.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 is a front view showing a configuration of an aerodynamic brake device for a railway vehicle according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view thereof, and FIG. 4 is provided with an aerodynamic brake device for a six-car train. It is explanatory drawing of a position.

  As shown in FIGS. 1 and 2, railroad vehicle aerodynamic brake devices 1 </ b> L and 1 </ b> R according to the present invention are symmetrically disposed on the left and right sides of the center of the vehicle body 2 in the left-right direction. Each aerodynamic brake device 1L, 1R protrudes by rotation outward from the vehicle body through an opening (not shown) formed in the roof portion 2a of the vehicle body 2, and receives an air resistance force to generate an aerodynamic brake effect. 11L, 11R. For example, in the case of a six-car train, this device 1 is provided at positions S1 to S6 away from the pantograph 3, as shown in FIG. Needless to say, the aerodynamic brake plates 11L and 11R are positioned within the vehicle limit S even when the aerodynamic brake plates 11L and 11R protrude above the vehicle body.

  Each of the aerodynamic brake plates 11L and 11R has a fan shape with a central angle of 90 degrees or less, and the fan-shaped center portion rotates with respect to the vehicle body 2 via bearings (not shown) about the rotation shafts 12L and 12R in the vehicle longitudinal direction. It is provided as possible. The aerodynamic brake plates 11L and 11R are arranged such that the fan-shaped center portion is located on the vehicle body center side.

  Further, the vehicle body 2 includes arc-shaped first and first arcs so as to coincide with the rotation trajectories of the aerodynamic brake plates 11L and 11R and to correspond to the fan-shaped central portion and the fan-shaped outer peripheral portion of the aerodynamic brake plates 11L and 11R. Two guide rails 13L, 13R, 14R, 14L are arranged in parallel.

  Sliders 15L, 15R, 16L, and 16R that are slidably engaged with the guide rails 13L, 13R, 14R, and 14L are provided on one side of the aerodynamic brake plates 11L and 11R, respectively. The guide rails 13L, 13R, 14R, and 14L and the sliders 15L, 15R, 16L, and 16R constitute guide means for guiding the protruding operation of the aerodynamic brake plates 11L and 11R.

  Air cylinders 17L and 17R (drive cylinders) are used as actuators for projecting the aerodynamic brake plates 11L and 11R. The air cylinders 17L and 17R include cylinder main bodies 17La and 17Ra and piston rods 17Lb and 17Rb whose projecting amounts change from the cylinder main bodies 17La and 17Ra, and are substantially vertically moved when the aerodynamic brake plates 11L and 11R are stored. It is arranged to face. Piston rods 17Lb and 17Rb of the air cylinders 17L and 17R are rotatably connected to the other side of the aerodynamic brake plates 11L and 11R in the vicinity of the guide rails 13L, 13R, 14R and 14L. Base ends of the main bodies 17La and 17Ra are rotatably connected to the vehicle body 2.

  Thus, the air cylinders 17L and 17R are provided on one side of the aerodynamic brake plates 11L and 11R, and the guide means (guide rails 13L, 13R, 14R and 14L, sliders 15L, 15R, 16L and 16R) are provided on the other side, respectively. , They are configured not to interfere with each other.

  At the time of an emergency stop, an open / close valve (not shown) of the air control circuit is opened, and air is supplied from an air tank (vehicle air source) (not shown) to the air cylinders 17L and 17R to extend the air cylinders 17L and 17R. By operating, the left and right aerodynamic brake plates 11L and 11R are simultaneously deployed. The on-off valve is opened by the on-vehicle command, and the air cylinders 17L and 17R are operated.

  Thereby, the aerodynamic brake plates 11L and 11R become air resistance, and an aerodynamic brake effect is generated.

  In the embodiment described above, two guide rails are provided on the fan-shaped central side and the fan-shaped outer peripheral side of the aerodynamic brake plates 11L and 11R. However, two guide rails are not necessarily provided. For example, as shown in FIG. It is possible to use only the guide rail of the part. Moreover, it is not necessary to provide two sliders for each guide rail, and only one slider may be provided.

  It is also possible to provide a guide rail on the aerodynamic brake plates 11L and 11R side and a slider on the vehicle body 2 side. Since the slider on the vehicle body 2 side is fixed, and the slider is slidably engaged with the guide rails of the aerodynamic brake plates 11L and 11R, their engagement positions (that is, the aerodynamic brake plates 11L and 11R are supported by the vehicle body 2). (Part) does not change during the rotation (deployment) operation of the aerodynamic brake plates 11L and 11R, and if the rigidity of the part (near the slider) is increased, sufficient support rigidity can be ensured.

  Specifically, it can be configured as shown in FIG. 5, for example. In this case, the aerodynamic brake plates 11L and 11R are provided with a guide rail 13 on the fan-shaped outer peripheral side, and a slider 15 that is slidably engaged with the guide rail 13 is provided on the vehicle body side. 11 and the air cylinder 17 (piston rod 17b) are connected so that the position of the slider 15 is near. In this case, the air cylinder 17 is set near the side of the vehicle body 2 so as to face the vertical direction. In this way, a necessary guidance function can be ensured and the structure of the entire apparatus can be simplified. In addition, since the connecting portion between the air cylinder (piston rod) and the aerodynamic brake plates 11L and 11R is located near the guide mechanism (slider, guide rail), the stability when the aerodynamic brake plate 11 is operated to protrude is used. Excellent.

  Moreover, as shown in FIG.6 and FIG.7, it can also be set as the structure which abbreviate | omitted the guide rail and the slider itself.

  That is, the air cylinder 17 is arranged in the center, the aluminum covers 22 are provided on both the left and right sides via the stringers 21A and 21B, and the aluminum honeycomb core 23 and the machined integrated panel 24 are provided in order on the outer side. Then, a flat outer plate 25 </ b> A and a curved outer plate 25 </ b> B are provided to cover those peripheral edges and to connect them, and the fan-shaped aerodynamic brake plate 11 in which the air cylinder 17 is built is configured. The base end portion of the cylinder body 17a of the air cylinder 17 protrudes outside from a portion where the outer plates 25A and 25B are not provided and is rotatably supported by the vehicle body 2 via the hinge member 26, while the piston rod The tip of 17b is rotatably connected to the machined integrated panel 24 via a fixing bolt 27. In this case, the air cylinder 17 is built in the aerodynamic brake plate 11.

  The fan-shaped center side of the machined integrated panel 24 is rotatably supported on the rotation center axis of the vehicle body 2 via a rolling bearing unit 28 (bearings, bearing boxes). When the air cylinder 17 is extended, the roller 29a of the roller assembly 29 provided on the vehicle body 2 side rolls on the outer plate 25B, thereby causing the aerodynamic brake plate 11 to project smoothly.

  In addition to the embodiment described above, the present invention can also be configured as follows.

  (i) In the above embodiment, the place where the aerodynamic brake device is disposed is not particularly described, but the aerodynamic brake plate, the drive cylinder, and the guide means are unitized to be compact, and this aerodynamic brake device is The dead space can be used effectively by arranging the vehicle compartment and a partition wall that partitions the vehicle compartment or the passage.

  Specifically, as shown in FIG. 8, it can be provided in the space portions S11 and S12 on the left and right sides of the vehicle end 31, and is a hollow space that partitions the vehicle compartment 32 (room) and the passage 33 that leads to the entrance / exit. It is provided in the space portions S13 and S14 (hollow interior) of the partition wall 34 and the space portions S15 and S16 (hollow interior) of the hollow partition wall 35 that partitions the vehicle interior into the first and second vehicle compartments. Is also possible. In this way, by dividing the vehicle interior into the first and second vehicle compartments by the partition wall 35, for example, the first vehicle compartment is changed to a normal vehicle compartment (a smoking enabled vehicle compartment), and the second vehicle compartment is provided. Can be a car room with non-smoking seats.

  (ii) The slider on the vehicle body side constituting the guide means may be a convex portion, while the guide rail on the aerodynamic brake plate side may be a concave groove in which the protrusion is slidably engaged.

1 is a front view showing a schematic configuration of an aerodynamic brake device for a railway vehicle according to the present invention. It is the same top view. It is the same side view. It is explanatory drawing which shows an example of the position which provides an aerodynamic brake device in the case of the vehicle of 6-car train. It is explanatory drawing of other embodiment. It is explanatory drawing of another embodiment. It is the same exploded perspective view. It is explanatory drawing of the space which provides an aerodynamic brake device.

Explanation of symbols

1L, 1R Aerodynamic brake device for railway vehicles 2 Car body 11L, 11R Aerodynamic brake plates 12L, 12R Rotating shafts 13L, 13R, 14R, 14L Guide rails 15L, 15R, 16L, 16R Sliders 17, 17L, 17R Air cylinders S11 to S16 Space Part

Claims (4)

An aerodynamic brake device for a railway vehicle in which an aerodynamic brake plate protrudes from the inside of a vehicle body upward and the brake force is generated by the protruded aerodynamic brake plate,
A vehicle longitudinal axis of rotation provided to the vehicle body;
Aerodynamic brake plate which rotates at the rotational axis vertical plane rotatably provided for,
A drive cylinder having one end connected to the aerodynamic brake plate and the other end connected to the vehicle body;
An aerodynamic brake device for a railway vehicle, comprising: guide means provided between the vehicle body and the aerodynamic brake plate for guiding rotation of the aerodynamic brake plate in a vertical plane. The aerodynamic brake plate is rotatably supported by the vehicle body with the center of rotation disposed on the vehicle body center side.
The aerodynamic brake device for a railway vehicle according to claim 1, wherein the guide means includes a slider provided on a vehicle body side and a guide rail provided on an aerodynamic brake plate and slidably engaged with the slider. The aerodynamic brake plate is fan-shaped, and its rotation center is arranged on the vehicle body center side and is rotatably supported by the vehicle body,
2. The aerodynamic brake device for a railway vehicle according to claim 1, wherein the guide means includes a guide roller on a vehicle body side that contacts an outer peripheral surface of the aerodynamic brake plate and guides a protruding operation of the aerodynamic brake plate.   The aerodynamic brake plate, the drive cylinder, and the guide means are configured as a brake unit, and the brake unit is disposed in a hollow partition wall that partitions the vehicle compartment from the vehicle compartment or the passage. The aerodynamic brake device for railway vehicles according to any one of the above.

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