Provided is a damper for a railroad vehicle, which can achieve cost reduction and improvement in ride comfort of a vehicle. To this end, the damper (1) for a railroad vehicle comprises: a cylinder (2); a rod (3) which is movably inserted into the cylinder (2); a piston (4) which is attached to the rod (3), is movably inserted into the cylinder (2), and partitions the inside of the cylinder (2) into an extension-side chamber (R1) and a pressure-side chamber (R2); a tank (5); a rectification passage (6) which allows only a liquid flow from the pressure-side chamber (R2) to the extension-side chamber (R1); a suction passage (7) which allows only a liquid flow from the tank (5) to the pressure-side chamber (R2); a damping passage (8) which allows only a liquid from the extension-side chamber (R1) to the tank (5) and applies resistance to the liquid flow; a bypass passage (9) which bypasses the damping passage (8) and communicates with the extension-side chamber (R1) and the tank (5); and an opening/closing valve (OV) which opens and closes the bypass passage (9) by inertia when acceleration is input to a carriage (T).
本发明提供一种铁道车辆用减震器,其能够降低成本并提高车辆的乘坐舒适性。因此,铁道车辆用减震器(1)具备:气缸(2);杆件(3),其可自由移动地插入到气缸(2)中;活塞(4),其安装于杆件(3)并可自由移动地插入到气缸(2)中,并且将气缸(2)内部分成伸长侧腔室(R1)和压缩侧腔室(R2);储液罐(5);整流通道(6),其仅允许液体从压缩侧腔室(R2)流向伸长侧腔室(R1);吸入通道(7),其仅允许液体从储液罐(5)流向压缩侧腔室(R2);阻尼通道(8),其仅允许液体从伸长侧腔室(R1)流向储液罐(5),并且对液体的流动施加阻力;旁路通道(9),其绕过阻尼通道(8)而将伸长侧腔室(R1)和储液罐(5)相连通;以及开关阀(OV),当将加速度输入到台车(T)时,该开关阀通过惯性开关旁路通道(9)。
DAMPER FOR RAILROAD VEHICLE
铁道车辆用减震器
2021-03-16
Patent
Electronic Resource
Chinese