KR850001584Y1 - Brake support structure of railway car truck - Google Patents

Abstract

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Description

Brake Support and Guidance System for Railway Vehicles

1 is a side view of a typical railway vehicle including a brake support and guide device according to the present invention.

2 is a plan view of one of the trucks shown in FIG.

3 is a side view of the truck shown in FIG.

4 is a cross sectional view taken along line 4-4 of FIG.

5 is a side view of an embodiment to which the brake support and guide device according to the present invention is applied.

Figure 6 is an exploded perspective view of the brake support and guide device partially with the guide end of the brake body.

The present invention relates to a brake support and guide device of a railway vehicle.

The truck of a railway vehicle includes a side frame installed between a front wheel and a rear wheel and two pairs of brake support and guide devices installed on the side frame. The brake support and guide device supports and guides the guide ends of the brake body and is mounted to the side frame by a support member permanently mounted to the side frame. Plate members having guide members are designed to be suitable for wheels of different sizes.

Although trucks of the general type of railroad cars described in US Pat. No. 2,908,230 have been in use for many years, most trucks are designed to rebuild or replace parts of the brake system as a whole when wheels of different sizes are installed. It is.

The truck is preferably designed to allow easy installation of wheels of different sizes. Preferably, the main structure, which can meet the requirements of the brake device for wheels of different sizes, is preferably carried out at the plant where the truck is assembled. The truck designed in this way can be easily operated even in a place where there is a lack of equipment without having to replace the main structure in the truck structure.

Railroad cars designed for export often require wheels of different sizes. Conventional brake support and guide devices are only applied to wheels of the same size, but the device according to the present invention can be easily applied to wheels of different sizes.

It is an object of the present invention to provide an improved brake support and guidance device for railway vehicles that can be applied to wheels of different sizes. Brake support and guide devices of the same structure can be used for pairs of wheels of different sizes by only making minor adjustments to the brake support and guide devices without replacing parts of the structure of the truck or the supporting member.

Other objects and advantages of the present invention are described in detail below with reference to the accompanying drawings.

1 shows a typical railroad car 10. The railroad vehicle 10 is supported by a pair of trucks 12 and 14. One truck 12 has a pair of front wheels 16 and rear wheels 18, and the other truck 14 likewise has a pair of front wheels 20 and rear wheels 22. The brakes 24 and 26 are connected to the side frames of the truck 12 for supporting and guiding the respective brakes and brake the respective wheels 16 and 18, and the brakes 28 and 30 are likewise brake devices. It is connected to the side frame of the truck 14 supporting and guiding the brakes to brake the respective wheels 20 and 22.

2, 3, and 4, the truck 14 has a pair of side frames 32,34. V-shaped members 36 and 38 are disposed on the side frames 32 and 34 so as to face each other, and an opening is formed in the center of these V-shaped members. This arrangement is similar to that described in US Pat. No. 2,908,203. The axles 40, 42 disposed between the wheels 20, 22 are supported between the side frames 32, 34, and the axles 40 by a pulley device comprising a pulley 44 and a belt 46. Is driven. It is necessary to rotate the axle 40 to drive a generator in a vehicle, which will not be described here because it is not related to the present invention. A horizontal support 48 is disposed on the side frames 32 and 34 in the horizontal direction, and a sliding bearing 50 is provided to allow the horizontal support 48 to slide at a relatively small angle on the side frames 32 and 34. It is arranged between the transverse support 48 on the side frames 32 and 34 and the friction plate.

The side shock absorber 52 is installed between the horizontal support 48 and the lower structure of the vehicle body 58, and the vertical shock absorbers 54 and 56 are installed between the vehicle body 58 and the horizontal support 48. The vehicle body 58 is supported by a chassis receiving device composed of a pair of mechanical springs 60, 62 and a pair of elastic members 64, 66 provided on the horizontal support 48. In the lower portion of the center of the horizontal support 48, a central pin 68 is inserted into an opening formed in the center of the V-shaped members 36 and 38.

The various components and devices described so far are those commonly used in most trucks, and the present invention relates to a device for supporting and guiding a brake device used to brake wheels of a vehicle.

2 to 6, the brake support and guide devices 28 and 30 are installed on the side frame 32 to support the brake device for braking the wheels 20 and 22, and at the same time the opposite brake Support and guide devices 74 and 76 are also mounted to the side frames 34 to support the brakes that brake the wheels 20 and 22.

With particular reference to FIGS. 2 and 3, the brake support and guide devices 28, 30 on one side of the truck are arranged in opposite directions, likewise the devices 74, 76 are also arranged on the opposite side in the same way. . The device 30 has the same structure as the device 74 installed on the opposite side in the diagonal direction, and the device 28 also has the same structure as the device 76 installed on the opposite side in the diagonal direction. Thus, the structure of the devices 28, 30, 74, 76 consists of a pair of identical devices 28, 76 and another pair of identical devices 30, 74.

The truck shown in FIG. 3 is 99.06 cm in wheel size and the truck shown in FIG. 5 is actually identical in structure to each other except that the wheel is 71.12 cm in size.

Thus, the brake support and guide device 28 can be applied to the wheels of FIG. 3 when the wheels shown in FIG. 3 are removed and the wheels shown in FIG. It is installed reversed from the position. That is, in FIG. 3, the device 28 on the left is rearranged to the right and the device 30 on the right to the left. When wheels with smaller dimensions than the wheels shown in FIG. 3 are replaced, all the members for supporting and guiding the brake devices 96, 98 are all in their positions except the main support members 82,84. As described above, it is reversed. However, the supporting members 82 and 84 all have the same structure and are permanently mounted to the truck.

Referring to FIG. 6, each brake support and guide device includes guide members 86 and 88 attached to the plate member 81. The brake supporting and guiding devices are each composed of the same parts, and the difference between them is that the guide members 86 and 88 on the plate member 81 are disposed on opposite sides of each other. The brake support and guide devices 28, 30, 74, 76 are shown in detail in FIG. 6, indicated by the reference numeral 80.

6, one end of the tubular member 82 is welded to the plate member 84 and the other end of the tubular member 82 is inserted into and welded to the side frames 32 and 34, as shown in FIG. The reinforcing plate 90 is welded between the tubular member 82 and the plate member 84. The four supporting members constituted by the tubular member 82 and the plate member 84 are all configured in the same manner and permanently attached to the side frame. In addition, the plate member 81 to which the guide members 86 and 88 are attached is attached on these supporting members. These members can be easily changed and manufactured on site after the vehicle is delivered.

Four member openings 111 and 113 are formed in the plate member 84 and the plate member 81, and they are attached to each other by fastening with bolts or screws through the openings.

Guide members 86 and 88 are welded on the plate member 81, and a space for accommodating the guide plate 101 is formed between the guide members 86 and 88. The plate member 81 has vertical sides 92 and side surfaces 94 and 95 formed at an angle to each other, which provides a structure suitable for each wheel when wheels of different sizes are applied.

Protrusions 109 are formed on the guide plate 101 to better engage the openings formed in the members 86 and 88. The guide end 128 of the brake bodies 96 and 98 moves under the guidance of the guide plate 101 during braking of the wheel.

The brake bodies 96 and 98 both have a guide end 128 as shown in FIG. 6 and they move under the guidance of the guide plate 101 of the brake support and guide device.

As shown in FIG. 2 and other figures, the cylinders 100 and 102 are installed in the brake bodies 96 and 98, respectively. Further, between the brake bodies 96 and 98, push rods 104 and 106 are installed to drive the brake body back and forth by pistons in the cylinders 100 and 102, and the free ends of the push rods 104 and 106 are connected to the connecting devices 108 and 110. Are connected to the brake bodies 96 and 98, respectively.

When the push rods 104 and 106 are moved by the pistons in the cylinders 100 and 102, the entire brake bodies 96 and 98 move in opposite directions in the longitudinal direction of the side frames 32 and 34. Guide ends 128, as shown in FIG. 6, are formed at both ends of the brake bodies 96 and 98, and these guide ends 128 are brake support and guide generally shown at 80 in FIG. On the devices 28, 30, 74, 76. Inside the device 28, 30, 74, 76 are arranged a number of brake shoes 112, 114, 116, 118 securely mounted through the protrusions of the brake bodies 96, 98. The brake shoe provides a braking force while moving back and forth according to the operation of the brake body. For example, when the cylinder body 102 pushes the rod 106 and the brake body 96 moves to the left side, the brake shoes 112 and 118 come into contact with the wheel 20 to perform a braking action. Likewise, when the cylinder body 100 pushes the rod 104 and the brake body 98 moves to the right side, the brake shoes 114 and 116 come into contact with the wheels 22 to perform a braking action. The guide ends 120, 122, 124, and 126 disposed outwardly from the brake bodies 96 and 98 are integrally formed with the structures of the brake bodies 96 and 98, and at the same time, a part of the brake support and guide devices 28, 30, 74, and 76 may be removed. It is provided in the guide plate 101 in the guide members 86 and 88 which comprise. This arrangement is shown in detail in FIG.

Typically, the brake shoe of the brake device is preferably in contact with the wheel while forming an upward angle. The reason is that when the brake is released, the brake is pushed back by gravity. As a result, it was found that the angle of the braking force adaptation direction with respect to the axis of the wheel was good when the angle was 14 ° upward. In other words, with respect to the brake device, the guide members 86, 88 should be arranged to face upwards 14 ° in the horizontal plane. Various devices for providing a handbrake device including various rods and connecting devices for providing braking force are not described herein because they are not related to the present invention.

Claims (1)

In the brake support and guide device of a railway vehicle, the vertical side surface 92 and the side surfaces 94 and 95 formed at a predetermined angle with each other to be applied to wheels of different sizes are formed and bolts are formed through four openings 111. B. The screw member accommodates the plate member 81 installed on the plate member 84 and the guide plate 101, and simultaneously guides the guide ends 128 of the brake bodies 96 and 98 by the guide plate 101. Brake support and guide device of a railway vehicle, characterized in that consisting of a guide member (86,88) attached to the plate member (81) to.