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A variable-gauge bogie for rail vehicles

A rail vehicle and bogie technology, which is applied in the direction of the bogie, the device for lateral relative movement between the chassis and the bogie, and tracks of different widths, can solve the problems that cannot meet the braking requirements of variable gauge wheel sets, etc. Achieve the effect of facilitating torque transmission and improving structural reliability

Active Publication Date: 2020-05-12
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to realize the parking brake of the train, wheel-mounted brake discs are usually installed on the wheels. When the train brakes, the brake pads of the brake caliper hold the wheel-mounted brake discs to achieve braking. However, in the process of changing the gauge of the train , relative movement will occur between the wheels on the same wheel set, and the position between the wheel-mounted brake disc and the brake caliper will change. move request

Method used

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  • A variable-gauge bogie for rail vehicles
  • A variable-gauge bogie for rail vehicles
  • A variable-gauge bogie for rail vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 As shown, a variable-gauge bogie for rail vehicles provided by an embodiment of the present invention includes a frame, and the frame includes a pair of side beams 20 arranged in parallel and a pair of side beams 20 connected between the pair of side beams 20 A pair of crossbeams arranged in parallel, a pair of gauge-changing wheels are respectively arranged on the outer sides of the pair of beams, and wheel-mounted brake discs 100 are installed on the wheels 10 of the gauge-changing wheelset. Specifically, as Figure 6 As shown, the wheel-mounted brake disc 100 is installed on the inner and outer sides of the wheel 10 respectively, and is connected as a whole through a connecting piece, as shown in Figure 5 As shown, the mounting base 2 and the brake caliper 1 are installed on the side beam 20, of course, the mounting base 2 can also be installed on the beam, as Figure 2-3 As shown, the brake caliper 1 is connected to the mounting base 2 through a s...

Embodiment 2

[0065] The difference between embodiment 2 and embodiment 1 is that, as Figure 4 As shown, the second connection sleeve 12 in Embodiment 2 is sleeved on the second support pin 32 through the bush 9, and the shockproof rubber sleeve 8 is fixed on the bush 9, and the second connection The sleeve 12 is press-fitted on the anti-vibration rubber sleeve 8, and the connecting sleeve, the anti-vibration rubber sleeve 8 and the bushing 9 form an integrated structure, and the connecting sleeve can freely move back and forth along the support pin under the drive of the bushing 9; in embodiment 2, The movement can be realized only by overcoming the damping force between the first connecting sleeve 11 and the first support pin 31 , that is, the damping force is relatively small.

[0066] It should be noted that the bushing 9 is made of metal material, and the anti-vibration rubber sleeve 8 is vulcanized on the outer peripheral surface of the bushing 9 .

[0067] It can be seen from the a...

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Abstract

The invention relates to the field of rail vehicle bogies, and discloses a variable-gauge bogie for rail vehicles, which includes a frame, wheel-mounted brake discs are installed on the wheels of variable-gauge wheel sets, and wheel-mounted brake discs are installed on the side beams or beams of the frame. There are a brake caliper and a mounting seat, the brake caliper is connected to the mounting seat through a support pin; the support pin is horizontally arranged below the mounting seat and its two ends are fixedly connected to the mounting seat, One end of the brake caliper is provided with a connecting sleeve, and the inner fastening sleeve of the connecting sleeve is provided with a damping inner sleeve with elastic damping, and the connecting sleeve is locked on the support pin through the damping inner sleeve. When the thrust force received by the connection sleeve is greater than the damping force between the connection sleeve and the support pin, the connection sleeve drives the brake caliper to move along the support pin. The invention can meet the parking brake of the variable gauge wheel set under different gauges, improve the operating efficiency of the variable gauge wheel set under different tracks, and ensure the safety of vehicle operation.

Description

technical field [0001] The invention relates to the technical field of rail vehicle bogies, in particular to a variable-gauge bogie for rail vehicles. Background technique [0002] In order to meet the transportation requirements between tracks of different gauges in neighboring countries, bogies with different inner distances of wheel sets are often replaced at the junction. This solution is costly and time-consuming. Spain and Japan successively invented variable-gauge bogies, which can run continuously between tracks of different gauges. [0003] In order to realize the parking brake of the train, wheel-mounted brake discs are usually installed on the wheels. When the train brakes, the brake pads of the brake caliper hold the wheel-mounted brake discs to achieve braking. However, in the process of changing the gauge of the train , relative motion will occur between the wheels on the same wheel set, and the position between the wheel-mounted brake disc and the brake calip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/50B61F7/00B61H5/00
CPCB61F5/50B61F7/00B61H5/00B61F5/22
Inventor 乔青峰周平宇王旭马利军张振先
Owner CRRC QINGDAO SIFANG CO LTD
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