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rail vehicle

A rail vehicle and rail technology, applied in the field of rail transportation, can solve the problems of vehicle tilt, vehicle roll risk, unfavorable low floor of rail vehicles, etc., and achieve the ability to reduce relative height distance, roll resistance and cross wind resistance Strong, low center of gravity effect

Active Publication Date: 2018-10-16
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the rail vehicle turns or the car body tilts, the guide wheels give the bogie an upward partial moment, which causes the vehicle to tilt more seriously, and the vehicle has a risk of rolling
Moreover, the distance between the running wheels of the rail vehicle in the related art and the ground where the track is located is relatively large, which is unfavorable for the low floor of the rail vehicle

Method used

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Embodiment Construction

[0026] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0027] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular ...

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Abstract

The invention discloses a rail vehicle which is suitable for travelling on a rail. The top of the rail is provided with a groove extending in the length direction of the rail; the rail vehicle comprises a vehicle body and a guiding device; the guiding device comprises a bogie, walking wheels and a plurality of guiding wheels; the bogie is arranged on the bottom of the vehicle body in order to support the vehicle body; the walking wheels are arranged on the bottom wall of the bogie in a rotatable manner and are supported in the groove; the plurality of guiding wheels are arranged on the bottom wall of the bogie and are arranged on two sides of the walking wheels; when the walking wheels are positioned in the groove, the guiding wheels positioned on two sides of the walking wheels are respectively contacted with opposite outer sidewalls of the rail. The rail vehicle has a guiding function and is beneficial to achieving low-floor rail vehicles, when the vehicle body are inclined, the guiding wheels can give downward torque components not upward torque components to the bogie, and therefore the side-rolling resistance and crosswind resistance of the rail vehicle are improved, and the operation stability of the rail vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of rail transportation, in particular to a rail vehicle. Background technique [0002] Rail vehicles generally include structures such as bogies, running wheels, guide wheels, stabilizing wheels, and car bodies. In the related art, the running wheels are generally running on the top of the track, and the guiding wheels are positioned at the lower side of the running wheels to play a guiding role. When the rail vehicle turns or the car body tilts, the guide wheels give the bogie an upward partial moment, which causes the vehicle to tilt more seriously, and the vehicle has a risk of rolling. Moreover, the distance between the running wheels of the rail vehicle in the related art and the ground where the track is located is relatively large, which is not conducive to the low floor of the rail vehicle. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/24B61F9/00
CPCB61F5/24B61F9/00
Inventor 李燕阳彭方宏张国栋曾浩刘俊杰
Owner BYD CO LTD
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