JP2010070000A - Turning resistance variable truck for railroad vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a turning resistance variable truck for a railroad vehicle capable of smoothly turning the truck even when the railroad vehicle passes a curve. <P>SOLUTION: In the turning resistance variable truck for the railroad vehicle, a pneumatic static pressure guide mechanism is provided on sliding parts 6, 7 of side bearings 24, 25 which are arranged on the right and left sides of a center bearing 5 between a body of the truck B having a bolster device A and the truck, to receive the load of the vehicle body and suppress any meandering motion of the truck B by giving the adequate rotational resistance to the truck B. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a railway vehicle carriage provided with side supports, and more particularly to a railway vehicle rolling resistance variable carriage.

  Conventionally, as shown in the following Patent Document 1, the following is proposed as a railcar bogie that makes the rotational resistance of the vehicle body variable.

  FIG. 7 is a perspective view showing such a conventional turning resistance adjusting device.

In this figure, the turning resistance adjusting device 101 is provided with a circumferential contact surface 103 around the rotation center axis 102 on the vehicle body side, and the circumferential contact surface 103 from the direction intersecting the rotation center axis 102 on the carriage side. A contact element 104 is provided to adjust the turning resistance between the vehicle body and the carriage.
JP 2007-216876 A

  However, since the turning resistance adjusting device described above is a device that imparts rotational resistance, the rotational resistance cannot be reduced when passing through a curve. Further, since the movable device is provided, there is a problem that the device is enlarged.

  In view of the above situation, an object of the present invention is to provide a rolling resistance variable bogie for a railway vehicle that allows the bogie to smoothly rotate even when the vehicle passes a curve.

In order to achieve the above object, the present invention provides
[1] In a rolling resistance variable carriage for a railway vehicle, the carriage is arranged on the left and right of the center plate between the carriage body and the carriage with a pillow device and receives the load of the vehicle body, and gives an appropriate rotation resistance to the carriage. An air static pressure guide mechanism is provided in the sliding portion of the side wall that suppresses the snake behavior.

  [2] In a rolling resistance variable carriage for a railway vehicle, the carriage is disposed on the left and right of the center plate between the carriage body and the carriage provided with the pillow device, receives the load of the vehicle body, and gives an appropriate rotation resistance to the carriage. An air static pressure guide mechanism is provided on the side receiver that suppresses the snake behavior.

  [3] In the railway vehicle rolling resistance variable carriage described in [1] or [2], the vehicle includes a vehicle travel position information acquisition device, and when the cart travels at a curved position, The static air pressure guide mechanism is operated, and the static air pressure guide mechanism is not operated when the carriage is traveling at a position other than a curve.

  According to the present invention, the rotation resistance can be made variable by simple control means, and the cart can be smoothly rotated even when the vehicle passes a curve. In particular, in order to reduce the rotational resistance in the curve by the aerostatic guide mechanism, there is little mechanical wear as in the prior art and the life is long.

  The rolling resistance variable carriage for a railway vehicle according to the present invention is arranged on the left and right of the center plate between the body and the carriage of the carriage provided with the pillow device, receives the load of the vehicle body, and gives an appropriate rotation resistance to the carriage. An air static pressure guide mechanism is provided on the sliding part of the side receiving that suppresses the snake behavior.

  Hereinafter, embodiments of the present invention will be described in detail.

  FIG. 1 is a diagram showing a railway rolling resistance variable carriage (bolster carriage) according to an embodiment of the present invention, and FIG. 2 shows an air static pressure guide mechanism in a sliding portion of a side of the railway rolling resistance variable carriage. FIG.

  In these drawings, on the pillow apparatus A side, 1 is a pillow sleeper, 2 is a left-right motion damper, 3 is an air spring, 4 is a center pin, 5 is a center plate, and 6 and 7 are sliding with the side supports 24 and 25. The moving part 8 is a bolster anchor. On the side of the carriage B, 11 is a wheel, 12 is a wheel-side disk, 13 is a drive unit, 14 is an axle, 15 is an axle box, 16 is a gear box suspension receiver, 17 is a carriage frame, 18 is a shaft damper, 19 Is a shaft spring, 20 is an end beam, 21 is a pressure-increasing cylinder, 22 is a disc brake, 23 is a main motor, and 24 and 25 are side supports (side receiving plates and core plate sliding plates).

  Here, the side receivers 24 and 25 are arranged on the left and right of the center plate 5 between the body and the carriage of the carriage B provided with the pillow device A, receive the load of the automobile body, and give the carriage B an appropriate rotational resistance. It is a device that suppresses trolley snake behavior. The carriage B provided with the pillow device A rotates around the center pin 4 and shares the vertical load between the core plate 5 and the side supports 24 and 25, or the side supports 24 and 25 all bear the load. Although the frictional resistance in the side supports 24 and 25 suppresses the serpentine behavior of the carriage B, the frictional resistance prevents smooth rotation when the carriage B passes the curve.

  Therefore, in the present invention, the rotational resistance between the pillow apparatus A and the carriage B is made variable by an air static pressure guide mechanism as shown in FIG. As shown in FIG. 2, the air static pressure guide mechanism has small diameter air supply holes 6 </ b> B and 7 </ b> B formed in the sliding portions 6 and 7 facing the side supports 24 and 25. The compressed air 26 sent from the small diameter air supply holes 6B and 7B through the air supply grooves 6A and 7A is supplied.

  At this time, the bearings 24 and 25 and the sliding portions 6 and 7 are not in contact with each other by the compressed air 26, and the compressed air 26 bears a part of the vertical load, so that the rotational resistance of the carriage B during the curve traveling can be reduced. The lateral pressure can be reduced by lowering. On the other hand, when the carriage B is running straight or when a control failure occurs, the supply air is stopped to provide a carriage that serves as a normal reception. In addition, as a static air pressure type, a porous restriction [FIG. 3 (a)], a surface restriction [FIG. 3 (b)], an orifice restriction [FIG. 3 (c)], a self-made restriction [FIG. 3 (d)] Etc. can be used. In addition, the example of the air static pressure format shown in FIG. 3 is described in the homepage of Oiles Industry Co., Ltd.

  Moreover, it is good also as an air bearing using a diaphragm as shown in FIG.

  In the state where compressed air is not supplied from the entrance 32 to the diaphragm 31 as shown in FIG. 4A, the side load bears all the load P, but as shown in FIG. By inflating the diaphragm 31 with the air 33, a part of the load P may be shared and the rotational resistance may be reduced. In addition, the static air pressure mechanism shown in FIG. 4 is described in the homepage of Kogyo Kogyo Co., Ltd.

  FIG. 5 is a diagram showing an operation flow of the static air pressure guide mechanism in the rolling resistance variable carriage for railcars of the present invention.

  The vehicle is provided with a vehicle travel position information acquisition device. First, vehicle travel position information is obtained from the vehicle travel position information acquisition device (step S1), and it is checked whether it is a curve (step S2). When the traveling position of the vehicle is a curve, the compressed air 26 is supplied to the sliding portions 6 and 7 facing the side supports 24 and 25 (step S3). While the vehicle is traveling, the steps from Step S1 to Step S3 are repeated. If the running position of the vehicle is not a curve, step S3 is terminated without supplying compressed air to the sliding parts 6 and 7 facing the side supports 24 and 25.

  That is, based on the vehicle travel position information from the vehicle travel position acquisition device, when the carriage B approaches a curve, the compressed air 26 is supplied to the sliding portions 6 and 7 facing the side supports 24 and 25 to rotate the carriage B. Reduce resistance. Further, the vehicle curve running detection and the air supply operation may be a mechanical type interlocking with the bogie angle.

  In addition, since the static air pressure guide mechanism can also perform intake, it operates as an intake during straight running and suppresses the snake behavior of the carriage by increasing the rotational resistance, while supplying compressed air during curved running to reduce rotational resistance. And smooth curve passing can be realized.

  FIG. 6 is a view showing an aerostatic pressure guide mechanism in a side support of a railway rolling resistance variable carriage according to another embodiment of the present invention.

  As shown in this figure, small diameter air supply holes 24B and 25B are formed in the side supports 24 and 25 facing the sliding parts 6 and 7, and the compressed air 27 sent through the air supply grooves 24A and 25A is supplied. By supplying, the rotational resistance between the carriage B and the pillow apparatus A is made variable.

  In this way, it is arranged on the left and right of the center plate between the bodies of the carriage B provided with the pillow apparatus A, receives the load of the body (not shown), and gives the carriage B an appropriate rotational resistance, thereby An air static pressure guide mechanism (air bearing) is arranged on the side supports 24 and 25 for suppressing the snake behavior.

  According to the present invention, since the static pressure guide mechanism is provided on the sliding portion of the side support or the side support, the receiving side and the sliding portion are not in contact with each other by the compressed air, and the compressed air has a uniform vertical load. By bearing the burden, the rotational resistance of the carriage can be reduced. And by reducing the rotation resistance, the curve passing performance is improved, and the lateral pressure is reduced. That is, when the carriage passes through the curve, the carriage can be smoothly rotated. Moreover, since the frictional resistance at the sliding portion of the side support or the side support is reduced, the friction life of the parts is extended.

  Moreover, since the compressed air used with the conventional railway vehicle is utilized, it can be comprised easily.

  In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

  INDUSTRIAL APPLICABILITY The railway vehicle rotation resistance variable carriage of the present invention can be used as a railway vehicle carriage that can cause the carriage to smoothly rotate when the vehicle passes a curve.

It is a figure which shows the rotation resistance variable trolley | bogie (bolster trolley | bogie) for rail vehicles which shows the Example of this invention. It is a figure which shows the aerostatic pressure guide mechanism in the sliding part of the side receiving of the rotation resistance variable trolley | bogie for rail vehicles which shows the Example of this invention. It is a figure which shows the aerostatic pressure form of the aerostatic pressure guide mechanism (air bearing) in the sliding part of the side receiving of the rotation resistance variable trolley | bogie for rail vehicles which shows the Example of this invention. It is a figure which shows the example of the air bearing using the diaphragm which shows the Example of this invention. It is a figure which shows the operation | movement flow of the static air pressure guide mechanism in the rotation resistance variable trolley | bogie for rail vehicles of this invention. It is a figure which shows the static air pressure guide mechanism in the side receiving of the rotation resistance variable trolley | bogie for rail vehicles which shows the other Example of this invention. It is a perspective view which shows the conventional turning resistance adjusting device.

Explanation of symbols

A Pillow device 1 Pillow 2 Right / left damper 3 Air spring 4 Center pin 5 Center plate 6, 7 Sliding part 6A, 7A, 24A, 25A Air supply groove 6B, 7B, 24B, 25B Air supply hole 8 Bolster Anchor B Carriage 11 Wheel 12 Wheel side disk 13 Drive device 14 Axle 15 Shaft box 16 Gear box suspension receiver 17 Bogie frame 18 Shaft damper 19 Shaft spring 20 End beam 21 Booster cylinder 22 Disc brake 23 Main motor 24, 25 Side receiving plate, heart dish plate)
26, 27, 33 Compressed air 31 Diaphragm 32 Entrance

Claims (3)

  The sliding part of the side which is arranged on the left and right of the center plate between the body of the carriage equipped with the pillow device and receives the load of the body and which gives an appropriate rotational resistance to the carriage and suppresses the serpentine behavior of the carriage And a rotary resistance variable carriage for a railway vehicle, characterized in that an air static pressure guide mechanism is provided.   It is placed on the left and right of the center plate between the body of the bogie equipped with the pillow device and receives the load of the car body, and gives a moderate rotational resistance to the bogie to suppress the snake behavior of the bogie. A rolling resistance variable carriage for a railway vehicle, characterized in that a pressure guide mechanism is provided.   The rolling resistance variable carriage for a railway vehicle according to claim 1 or 2, wherein the vehicle is provided with a vehicle travel position information acquisition device, and the static air pressure guide mechanism is provided when the vehicle travels on a curved position. A rolling resistance variable carriage for a railway vehicle, which is operated so that the static air pressure guide mechanism is not operated when the vehicle is traveling at a position other than a curve.

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