Method for preventing railcar from overturning and anti-overturning railcar

Abstract

A method for preventing a railcar from overturning, including: enabling a side of a carriage of a vehicle body to include a side wing, so that airflow generates a centripetal force due to a difference in pressure on two surfaces of an airfoil of the side wing when the vehicle body travels through a curve portion of a track, to counteract a centrifugal force on the vehicle body by the centripetal force. An anti-overturning railcar for implementing the foregoing method is also revealed.

What is claimed is: 
     
         1 . A method for preventing a railcar from overturning, comprising: enabling a side of a carriage of a vehicle body to comprise a side wing, so that airflow generates a centripetal force due to a difference in pressure on two surfaces of an airfoil of the side wing when the vehicle body travels through a curve portion of a track, to counteract a centrifugal force on the vehicle body by the centripetal force. 
     
     
         2 . The method for preventing a railcar from overturning according to  claim 1 , wherein the side wing is reversibly arranged on a side of the carriage, and the airflow generates a downforce due to a difference in pressure on the two surfaces of the side wing when the vehicle body travels on a straight portion of the track. 
     
     
         3 . The method for preventing a railcar from overturning according to  claim 2 , wherein before the vehicle body is about to travel into the curve portion, the side wing is controlled to be reversed, so that the downforce generated by the airflow is converted into the centripetal force. 
     
     
         4 . The method for preventing a railcar from overturning according to  claim 1 , wherein two sides of the carriage both comprise the side wing, so that a centripetal force is generated on each of the two sides of the carriage to counteract the centrifugal force on the vehicle body. 
     
     
         5 . The method for preventing a railcar from overturning according to  claim 4 , wherein the side wing is reversibly arranged on a side of the carriage, and the airflow generates a downforce due to a difference in pressure on the two surfaces of the side wing when the vehicle body travels on a straight portion of the track. 
     
     
         6 . The method for preventing a railcar from overturning according to  claim 5 , wherein before the vehicle body is about to travel into the curve portion, the side wing is controlled to be reversed, so that the downforce generated by the airflow is converted into the centripetal force. 
     
     
         7 . An anti-overturning railcar, comprising:
 a vehicle body, comprising a carriage, wherein when the vehicle body travels through a curve portion of a track, the carriage comprises an outer rail side surface facing an outer rail side of the curve portion, and the carriage comprises an inner rail side surface facing an inner rail side of the curve portion; and   a side wing, located on a side of the carriage, wherein there is a fluid passage between the side wing and the carriage, the fluid passage comprises an inlet and an outlet, the side wing has a cross section in a shape of an airfoil and comprises a convex arc surface and a pressure surface opposite to the convex arc surface, a length of the convex arc surface is greater than a length of the pressure surface, and when the side wing is located on the outer rail side surface of the carriage, the convex arc surface of the side wing faces the outer rail side surface; and when the side wing is located on the inner rail side surface of the carriage, the pressure surface of the side wing faces the inner rail side surface.   
     
     
         8 . The anti-overturning railcar according to  claim 7 , wherein the convex arc surface comprises a front arc segment gradually expanding from the inlet relative to the pressure surface, and the convex arc surface comprises a rear arc segment extending from the front arc segment and gradually narrowing toward the outlet relative to the pressure surface. 
     
     
         9 . The anti-overturning railcar according to  claim 7 , further comprising a support assembly and a reversion module, wherein the support assembly connects the side wing and the carriage, and the reversion module is connected with the support assembly to reverse the side wing. 
     
     
         10 . The anti-overturning railcar according to  claim 9 , wherein the support assembly comprises at least one support connected with the carriage, and a pivoting shaft combined with the side wing and arranged on the support. 
     
     
         11 . The anti-overturning railcar according to  claim 10 , wherein the reversion module comprises a first gear combined with an end of the pivoting shaft, and a second gear arranged on the support and engaged with the first gear, and the second gear is connected with a driver, to be driven to rotate by the driver. 
     
     
         12 . The anti-overturning railcar according to  claim 9 , wherein when the vehicle body travels on a straight portion of the track, the convex arc surface of the side wing faces a ground.