The invention discloses a friction damping vibration attenuation pantograph for a traveling crane on a post-earthquake track, a vertically arranged rhombic damping device is connected between an upper arm rod and a lower arm rod, a vibration isolation support component is arranged between a pantograph head and the upper arm rod, and the pantograph head is provided with an acceleration sensor. When the high-speed train runs on the smooth track, the rhombic damping device does not work. When a high-speed train runs on an unsmooth rail after an earthquake, vibration between a pantograph and a contact line is remarkably increased, acceleration at a pantograph head is remarkably changed, when the acceleration change exceeds a specified range, an acceleration sensor transmits an electric signal to a rhombic damping device, the rhombic damping device works, energy is consumed through friction, and the vibration of the pantograph is reduced. And the energy dissipation and vibration reduction effects of the structure are improved. And meanwhile, vibration of the pantograph head is reduced and isolated through the vibration isolation support, the pantograph is prevented from generating large-amplitude vibration when a high-speed train runs on an unsmooth track after an earthquake, and therefore the current collection quality of the pantograph is improved.
本发明公开了一种用于震后轨道上行车的摩擦阻尼减振受电弓,其上臂杆和下臂杆之间连接有竖直布置的菱形阻尼装置,其弓头与上臂杆之间设置有隔振支座构件,弓头设置有加速度传感器。当高铁列车在平顺轨道上运行时,菱形阻尼装置不起作用。当高铁列车在震后不平顺的轨道上运行时,受电弓与接触线之间的振动显著增加,弓头处的加速度会发生显著变化,当加速度变化超过规定的范围时,加速度传感器传导电信号给菱形阻尼装置,菱形阻尼装置工作,通过摩擦耗能,提高结构消能减振的效果。同时通过隔振支座对弓头减隔振,避免高铁列车在震后不平顺轨道上运行时受电弓产生大幅度的振动,从而提升受电弓的受流质量。
Friction damping vibration attenuation pantograph for traveling crane on rail after earthquake
一种用于震后轨道上行车的摩擦阻尼减振受电弓
2024-02-06
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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