JPH11208469A - Truck for rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a truck for rolling stock which is simple in the structure of a mechanism to decide and restrain revolution of a wheel shaft, has good running stability in high speed operation, is applicable to a steering mechanism to work with the relative yaw angle of a car body even in case it is applied to an articulated structure car, and allows a monoaxial truck to be used easily as a biaxial boggie truck, articulated biaxial truck, or articulated monoaxial truck. SOLUTION: The two ends of a wheel shaft 10 are supported by respective shaft boxes 11, each of which is installed on intermediate frame 12 with possibility of swinging in the vertical direction, wherein a primary spring damper device is installed between the shaft box and intermediate frame 12, and a bracket 14 extending downward is installed on the undersurface of the car body and is equipped with a parallel link mechanism 15 consisting of a plurality of links extending in the direction of rail, and the intermediate frame 12 is supported by the parallel link mechanism 15, while a secondary spring damper device 16 is installed between the intermediate frame 12 and car body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway vehicle bogie having a structure in which an axle box is supported by a link.

[0002]

2. Description of the Related Art As a bogie for a railway vehicle having such a structure, there is, for example, a uniaxial bogie disclosed in Japanese Patent Application Laid-Open No. 57-90260. This bogie supports axle boxes at both ends of the wheel set via axle springs in a U-shaped bogie frame in a plan view, and a pillow spring is arranged between the bogie frame and the vehicle body. One end of each link is connected to the protruding part of each part, and bell crank levers are provided rotatably on a pair of left and right brackets fixed to the lower surface of the vehicle body, and the other end of each link is pivotally attached to one end of each bell crank lever. The other ends of both bell crank levers are connected by a cross link, and the other end of one bell crank lever is extended, and the extended tip and the vehicle body are connected by an oil damper.

[0003] In this bogie, when the bogie rotates relative to the vehicle body when passing along a curved road of a track, both bell crank levers rotate through both links, and the rotation of the bell crank lever causes the oil damper to rotate. However, since the change in the curved path is relatively gentle, the speed of the rotational displacement of the bell crank lever is not fast, and the oil damper expands and contracts sufficiently to follow the speed, and the rotation of the bogie Is performed smoothly. As for the bogie's snaking behavior during straight running, the oil damper resists the displacement of the speed and acceleration of the snake's behavior and does not immediately follow the bogie.

[0004]

However, in the above-described structure, the entire mechanism for determining and restraining the rotation of the wheelset is complicated and costly, and the rotation of the bogie is excessively free. The stability is reduced, and it is necessary to separately add elements for controlling friction and damping. Further, even when the bogie having the above structure is applied to an articulated vehicle, it is difficult to apply the bogie to a steering mechanism using the relative yaw angle of the vehicle body. Furthermore, the conventional one-axis bogie is a two-axis bogie bogie,
It was impossible to convert it to an articulated two-axle truck or an articulated one-axle truck.

Therefore, the present invention has a simple structure of a mechanism for determining and restraining the turning of a wheel axle, has good running stability during high-speed running, and has a relatively low relative body even when applied to an articulated vehicle. Provided is a railcar bogie that can be applied to a steering mechanism using a yaw angle and that can easily convert a one-axis bogie into a two-axis bogie bogie, a connected two-axis bogie, and a connected one-axis bogie. It is an object.

[0006]

According to a first aspect of the present invention, there is provided a bogie for a railway vehicle, wherein both ends of a wheel axle are supported by axle boxes, and each axle box is provided at an intermediate position. A primary spring / damper device is provided between the axle box and the intermediate frame, and a bracket extending downward is provided on the lower surface of the vehicle body, and the bracket is provided on the frame so as to be swingable in the vertical direction. Provide a parallel link consisting of a plurality of links extending to the, support the intermediate frame with the parallel link,
A secondary spring / damper device is disposed between the intermediate frame and the vehicle body. The means according to claim 2 is characterized in that a hydraulic actuator that can be extended and retracted to one of the parallel links in the means according to claim 1 is provided. A pair of left and right hydraulic actuators are provided at the connecting portion of the connecting structure vehicle, and the hydraulic actuator of the connecting portion on the same side of the vehicle body and the hydraulic actuator of the parallel link are connected by an expandable and contractible pipe. It is characterized by.

According to the third aspect of the present invention, both ends of the wheel axle are supported by the axle boxes, respectively, and each axle box is provided on the intermediate frame so as to be vertically swingable, and between the axle box and the intermediate frame. A primary spring / damper device is provided, and brackets extending downward are provided on the lower surfaces of the vehicle bodies of the front vehicle and the rear vehicle of the articulated vehicle, and each bracket extends in the direction of the other bracket. One link is provided, and the upper part of the intermediate frame is supported by the first link, and the lower part of the intermediate frame of one vehicle and the lower part of the intermediate frame of the other vehicle are connected by a second link. And a secondary spring / damper device is disposed between the vehicle and the vehicle body.

Further, according to the fourth aspect of the present invention, both ends of the wheel set are respectively supported by the axle boxes, and each axle box is provided on the intermediate frame so as to be swingable in the vertical direction, and between the axle box and the intermediate frame. A primary spring / damper device is provided, and a bracket extending downward is provided on the lower surface of each of the front vehicle and the rear vehicle of the articulated vehicle, and the bracket of one vehicle is directed in the direction of the bracket of the other vehicle. A first link extending to the upper portion of the intermediate frame, the upper portion of the intermediate frame is supported by the first link, and the lower portion of the intermediate frame is connected to a bracket of the other vehicle by a second link. A secondary spring / damper device is disposed between the two.

According to a fifth aspect of the present invention, the bracket and the secondary spring / damper device of the first aspect are connected to a structure such as a flat plate, and the structure is attached to and detached from a lower surface of the vehicle body. According to a sixth aspect of the present invention, in the sixth aspect, the structure in the fifth aspect is provided on a lower surface of the vehicle body so as to be capable of turning horizontally.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail based on embodiments shown in the drawings. FIGS. 1 and 2 show a first embodiment in which two single-axis bogies of the present invention are combined and applied to a two-axis bogie. A two-axis bogie 1 has a structure in which a lower surface of a vehicle body 2 is a flat plate or the like. The first flat plate 3 is detachable with bolts 4 as an object, and the first flat plate 3 is provided with a center pin 5 and four slewing bearings 6 arranged on an arc centered on the center pin 5. A second flat plate 7 is supported on the lower surface of the first flat plate 3 via a swivel bearing 6 so as to be able to turn horizontally about the center pin 5, and an appropriate friction between the first flat plate 3 and the second flat plate 7 is expected. Arranging a sliding board, etc.,
Two uniaxial carriages 8 having the same structure are attached to the second flat plate 7.

The single-axle truck 8 is a wheel axle 1 having wheels 9, 9.
0 are supported by the axle boxes 11 and 11, respectively.
1 and 11 are provided on the intermediate frame 12 so as to be swingable in the vertical direction, and a primary spring / damper device 13 is disposed between the axle box 11 and the intermediate frame 12 so that the center portion of the second flat plate 7 can be moved right and left The brackets 14 are provided to extend downward, and the brackets 14 are provided with upper and lower parallel links 15 extending in the rail direction, and the intermediate links 12 are supported by the parallel links 15. Between the second flat plate 7 and the
A damper device 16 is provided, and the power of an electric motor 17 provided at the center of the second flat plate 7 is transmitted to the wheel shaft 10 via a first speed reducer 18 and a second speed reducer 19. The second flat plate 7 has a center upper portion of each secondary spring / damper device 16 supported by the slewing bearing 6, and a left-right motion damper between the second reduction gear 19 and the second flat plate 7. 20 are provided.

The intermediate frame 12 connects the shaft beam 11a of the shaft box 11 via a buffer 21 such as rubber to restrain the shaft box 11 in the rail direction. And two lower links 15a, 15a connected via a buffer 22 such as rubber, and one lower link 15b connected to a lower portion of the bracket 14 via a buffer 23 such as rubber. The upper link 15a, 15a has its tip connected to the upper part of the intermediate frame 12 via a buffer 24 such as rubber, and the lower link 15b has its tip connected to the intermediate frame 12 via a buffer 25 such as rubber. Connected to the bottom.

With such a configuration, the intermediate frame 12 is restrained by the parallel link 15 around the rail direction, the sleeper direction axis, and the vertical direction axis. Therefore, the structure of the mechanism for determining and restraining the rotation of the wheel set 10 is improved. It is easy and has good running stability at high speeds. Further, since the first flat plate 3 can be attached to and detached from the lower surface of the vehicle body 2 with the bolts 4, the two-axis bogie 1 and the vehicle 2 can be easily connected and disconnected, and the two-axis bogie 1 can be handled as one unit. Further, the first flat plate 3 and the second flat plate 7 can be easily turned and the traveling performance on a curved road is good.
Moreover, the two-axle bogie 1 can be easily configured by combining the two single-axle bogies 8, 8 having the same structure.

FIGS. 3 and 4 show a second embodiment in which the present invention is applied to an articulated vehicle.
Numeral 0 indicates a connection between the front vehicle 31 and the rear vehicle 32. The front vehicle 31 is provided with a leading truck 33 and a connection vehicle 34, and is connected to the rear vehicle 32. Part side trolley 3
5 are provided.

The leading bogie 33 is a single-axle bogie having the same structure as that of the first embodiment, and a first bogie 33 is provided on the lower surface of the front vehicle 31.
The flat plate 36 is detachable with bolts 37, and the first flat plate 3
6 is provided with a center pin 38 and two slewing bearings 39 arranged on an arc centered on the center pin 38, and a second flat plate 40 is mounted on the lower surface of the first flat plate 36.
The bracket 4 is supported so as to be able to turn horizontally about the center pin 38 via the center plate 38, and the bracket 4 extending downward is attached to the second flat plate 40.
The brackets 41, 41 are provided with upper and lower parallel links 42 extending in the rail direction.
2, the intermediate frame 43 is supported, and the intermediate frame 43 and the second flat plate 4 are supported.
0, a secondary spring / damper device 44 is provided, and an axle box 45 is supported by an intermediate frame 43 so as to be able to swing vertically.
A primary spring / damper device 46 is disposed between the first spring 5 and the intermediate frame 43.

The connecting part side bogie 34 is configured such that a flat plate 47 can be attached to and detached from the lower surface of the vehicle body 31 with bolts 48.
Brackets 49, 49 extending downward are provided, and each bracket 49, 49 is provided with two first links 50 extending in the direction of the rear vehicle 32.
, And one second link 52 extending from the lower portion of the intermediate frame 51 to be connected to the connecting portion side bogie 35 of the rearward vehicle 32 extends from the lower portion of the intermediate frame 51 to the secondary spring between the intermediate frame 51 and the flat plate 47. A damper device 53 is provided, and the shaft box 54 is supported by the intermediate frame 51 so as to be swingable in the vertical direction.
A next spring / damper device 55 is provided.

The connecting portion side bogie 35 of the rearward vehicle 32 is configured such that a flat plate 56 can be attached to and detached from the lower surface of the rearward vehicle 32 with bolts 57, and brackets 58, 5 extending downward from the flat plate 56.
8 is provided on each of the brackets 58, 58, and
Two first links 59 extending in the direction are provided, the upper part of the intermediate frame 60 is supported by the first links 59, and the lower part of the intermediate frame 60 is connected to the second link 52 of the front vehicle 31. The second link 61 of the book is extended, and a secondary spring / damper device 62 is disposed between the intermediate frame 60 and the flat plate 56.
, The shaft box 63 is swingably supported in the vertical direction, and a primary spring / damper device 64 is disposed between the shaft box 63 and the intermediate frame 60. Rear vehicle 32
The second link 61 can be separated and connected to each other by bolting the flange portions.

With this configuration, the structure of the mechanism for determining and restraining the turning of the wheelset can be simplified, the running stability during high-speed running can be improved, and the front bogie 33 and the connecting side can be improved. The carts 34 and 35 can be unitized, and the one-axle cart can be applied to the articulated two-axle cart with slight changes. Furthermore, when the articulated vehicle 30 is separated, the bogies are mounted on the front vehicle 31 and the rear vehicle 32, respectively, so that a car lifter or the like is not required. Moreover,
The connecting part side bogies 34 and 35 are Z-shaped by first links 50 and 59, intermediate frames 51 and 60, and second links 52 and 61, respectively.
By configuring the link mechanism, the turning angle of the wheelset can be restricted in the tangential direction of the rail at the wheelset position.

FIGS. 5 and 6 show a third embodiment in which the present invention is applied to an articulated vehicle.
Numeral 0 indicates that the front vehicle 71 and the rear vehicle 72 are connected, and the front vehicle 71 is provided with a leading bogie 73, and the rear vehicle 72 is provided with a connecting vehicle 74. It has a one-wheel-and-one-wheel axle structure.

The front bogie 73 has a flat plate 75 which can be attached to and detached from the lower surface of the front vehicle 71 with bolts 76. Brackets 77, 77 extending downward from the flat plate 75 are provided. Two first links 78 extending in the right direction and a hydraulic actuator 79 serving as one lower second link extending in the rail direction.
A parallel link is constituted by the link 78 and the hydraulic actuator 79, the intermediate frame 80 is supported by the first link 78 and the hydraulic actuator 79, and a secondary spring / damper device 81 is provided between the intermediate frame 80 and the flat plate 75. The shaft box 82 is swingably supported in the vertical direction by the intermediate frame 80, and a primary spring / damper device 83 is provided between the shaft box 82 and the intermediate frame 80.

The connecting part-side carriage 74 is configured such that a flat plate 84 can be attached to and detached from the lower surface of the rear vehicle 72 by bolts 85.
Are provided with brackets 86, 86 extending downward, and two first links 87 extending toward the front vehicle 71 are provided on each bracket 86, 86.
8 from the lower part of the intermediate frame 88 to the front vehicle 81
A second link 90 connected to the bracket 89 is extended, a secondary spring / damper device 91 is disposed between the intermediate frame 88 and the flat plate 84, and the shaft box 92 is moved up and down by the intermediate frame 88. The primary spring / damper device 93 is disposed between the axle box 92 and the intermediate frame 88.

A pair of left and right hydraulic actuators 94, 94 are disposed at the connection between the front vehicle 71 and the rear vehicle 72, and the hydraulic actuator 94 of the connection on the same side of the vehicle body is provided.
Is connected to the head side of the hydraulic actuator 79 of the leading side carriage 73 by a pipe 95 so that the rod side can be extended and contracted in conjunction therewith.

With this configuration, the hydraulic actuator 94 of the connecting portion expands and contracts due to the relative yaw angle of the front vehicle 71 and the rear vehicle 72, and the hydraulic actuator 9
Since the hydraulic actuator 79 of the leading bogie 73 expands and contracts in conjunction with the pressurized oil supplied from 4, it acts as a steering mechanism of the leading bogie 73. Further, by configuring the Z link mechanism with the first link 87, the intermediate frame 88, and the second link 90, the turning angle of the wheelset can be restricted in the rail tangential direction of the wheelset position.

[0024]

As described above, in the truck for a railway vehicle according to the present invention, both ends of the wheel axle are respectively supported by the axle boxes, and each axle box is rocked vertically by the intermediate frame. A primary spring / damper device is disposed between the axle box and the intermediate frame, a bracket extending downward is provided on a lower surface of the vehicle body, and a plurality of links extending in the rail direction are provided on the bracket. The parallel link consists of a parallel link, supports the intermediate frame with the parallel link, and the secondary spring and damper device is installed between the intermediate frame and the vehicle body, simplifying the structure of the mechanism that determines and restrains the turning of the wheelset. And the running stability during high-speed running can be improved. Further, a two-axis bogie can be easily configured by combining the two single-axis carriages having this configuration.

According to a second aspect of the present invention, a hydraulic actuator that can be extended and retracted is used below the parallel link, and a pair of left and right hydraulic actuators are disposed at the connecting portion of the vehicle having the articulated structure. And the hydraulic actuator of the bogie are connected by a pipe so that they can expand and contract in conjunction with each other, so that the hydraulic actuator of the connecting part expands and contracts due to the relative yaw angle of the front vehicle and the rear vehicle of the articulated vehicle, and the hydraulic actuator The hydraulic oil of the trolley expands and contracts in conjunction with the pressurized oil, so that it acts as a trolley steering mechanism.

According to the third aspect of the present invention, both ends of the wheel axle are supported by the axle boxes, respectively, and each axle box is provided on the intermediate frame so as to be vertically swingable, and the primary shaft is provided between the axle box and the intermediate frame. A first link that includes a spring and a damper device, and has brackets extending downward on the lower surfaces of the vehicle bodies of the front vehicle and the rear vehicle of the articulated vehicle, and each bracket extending in the direction of the other bracket. The first link supports the upper part of the intermediate frame, and the lower part of the intermediate frame of one vehicle and the lower part of the intermediate frame of the other vehicle are connected by the second link. Since the secondary spring / damper device is disposed between the two, the structure can be easily applied to the articulated two-axle bogie of the articulated vehicle by only slightly modifying the structure of the means of claim 1. Further, by configuring the Z link mechanism with the first link, the intermediate frame, and the second link, the turning angle of the wheel set can be restricted in the rail tangent direction of the wheel set position.

According to the fourth aspect of the present invention, both ends of the wheel axle are supported by the axle boxes, respectively, and each axle box is provided on the intermediate frame so as to be vertically swingable, and a primary is provided between the axle box and the intermediate frame. A spring / damper device is provided, and a bracket extending downward is provided on the lower surface of each of the front and rear vehicles of the articulated vehicle, and the bracket of one vehicle extends in the bracket direction of the other vehicle. And providing a first link to output the first link.
A link supports an upper portion of the intermediate frame, a lower portion of the intermediate frame is connected to a bracket of the other vehicle by a second link, and a secondary spring / damper device is disposed between the intermediate frame and the vehicle body. Therefore, the present invention can be easily applied to the articulated single-axle bogie of the articulated vehicle by only slightly modifying the structure of the means of the first aspect. Further, by configuring the Z link mechanism with the first link, the intermediate frame, and the second link, the turning angle of the wheel set can be restricted in the rail tangent direction of the wheel set position.

According to the fifth aspect of the present invention, the bracket and the secondary spring / damper device are connected to a structure such as a flat plate, and the structure is detachable from the lower surface of the vehicle body. The connection and disconnection of the vehicle body can be done easily. Furthermore, in the means of claim 6, since the structure of the means of claim 5 is provided on the lower surface of the vehicle body so as to be able to turn in the horizontal direction, the bogie can be easily turned and the traveling performance on a curved road is good.

[Brief description of the drawings]

FIG. 1 is a plan view of a truck showing a first embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of a truck showing a second embodiment of the present invention.

FIG. 4 is a side view of the same.

FIG. 5 is a plan view of a truck showing a third embodiment of the present invention.

FIG. 6 is a side view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... 2-axis bogie bogie, 2 ... body, 3 ... 1st flat plate, 7 ... 2nd flat plate, 8 ... 1-axis bogie, 10 ... wheel axle, 11, 45, 5
4, 63, 82, 92 ... axle box, 12, 43, 54, 6
3, 80, 88 ... middle frame, 13, 46, 55, 64, 8
3, 93 ... primary spring damper device, 14, 41, 49,
58, 77, 86, 89 ... bracket, 15, 42 ... parallel link, 16, 44, 53, 62, 81, 91 ... secondary spring damper device, 30, 70 ... articulated structure vehicle, 31,
71: Front vehicle, 32, 72 ... Rear vehicle, 33, 73 ...
Top-side trolley, 34, 35, 74 ... connecting part trolley, 79 ...
Hydraulic actuator for bogie, 94 ... Hydraulic actuator for connecting part, 95 ... Piping

Claims (6)

[Claims] 1. Both ends of a wheel axle are respectively supported by axle boxes, and each axle box is provided on an intermediate frame so as to be vertically swingable, and a primary spring / damper device is provided between the axle box and the intermediate frame. A bracket extending downwardly on the lower surface of the vehicle body, a parallel link comprising a plurality of links extending in the rail direction, and the intermediate frame supported by the parallel link. A bogie for a railway vehicle, wherein a secondary spring / damper device is disposed between a frame and a vehicle body. 2. A hydraulic actuator which can be extended and contracted to one of the parallel links, a pair of left and right hydraulic actuators is disposed at a connecting portion of a connecting vehicle, and the hydraulic actuator of the connecting portion on the same side of the vehicle body is parallel to the hydraulic actuator of the connecting portion. The bogie for a railway vehicle according to claim 1, wherein the hydraulic actuator of the link is connected to the hydraulic actuator so as to be extendable and contractible by piping. 3. Both ends of a wheel axle are supported by respective axle boxes, and each axle box is provided on an intermediate frame so as to be vertically swingable, and a primary spring / damper device is provided between the axle box and the intermediate frame. Disposed, a bracket extending downward is provided on the lower surface of the vehicle body of each of the front vehicle and the rear vehicle of the articulated structure vehicle, and each bracket is provided with a first link extending in the other bracket direction. A first link supports the upper portion of the intermediate frame, and a lower portion of the intermediate frame of one vehicle and a lower portion of the intermediate frame of the other vehicle are connected by a second link. A bogie for a railway vehicle, comprising a secondary spring / damper device. 4. Both ends of a wheel axle are respectively supported by axle boxes, and each axle box is provided on an intermediate frame so as to be vertically swingable, and a primary spring / damper device is provided between the axle box and the intermediate frame. A first link extending downwardly on a lower surface of a vehicle body of each of a front vehicle and a rear vehicle of an articulated vehicle, and a first link extending to a bracket direction of the other vehicle on a bracket of one vehicle; The first link supports the upper part of the intermediate frame, the lower part of the intermediate frame is connected to the bracket of the other vehicle by a second link, and a secondary spring is provided between the intermediate frame and the vehicle body. A bogie for a railway vehicle, comprising a damper device. 5. The vehicle according to claim 1, wherein the bracket and the secondary spring / damper device are connected to a structure such as a flat plate, and the structure is detachable from a lower surface of the vehicle body. A bogie for a railway vehicle according to any one of the above. 6. The bogie for a railway vehicle according to claim 5, wherein the structure is provided on a lower surface of the vehicle body so as to be capable of turning horizontally.