A foot-shaped hand brake lever is in a foot-like shape and is provided with an input end, an output end and a fixed end, and each end is provided with a connecting hole. The fixed end is connected with a fixed fulcrum seat mounted on a vehicle body, the input end is connected with a hand brake chain assembly, and the output end is connected with a unit brake device on a bogie; the connecting line of the input end and the fixed end is an input force arm L1, the connecting line of the output end and the fixed end is an output force arm L2, L1 is larger than L2, and the included angle between the two force arms is theta. The hand brake lever adopts the foot-like design, so the hand brake lever is novel, simple and reliable in structure, replaces a hand brake pulley, is suitable for railway vehicles with short traction beams and narrow spaces, is used for amplifying the output force of a hand brake, and can meet the parking requirements of the vehicles on specified ramps; moreover, the lengths of the input force arm L1 and the output force arm L2 and the included angle theta between the two force arms can be adjusted according to design requirements so as to change the amplification factor of the lever.
一种“足”形手制动杠杆,为仿“足”形,其上设置有输入端、输出端和固定端,各端设置有连接孔;固定端与安装在车体上的固定支点座连接,输入端与手制动机链条组成连接,输出端与转向架上的单元制动装置连接;输入端与固定端的连线为输入力臂L1,输出端与固定端的连线为输出力臂L2,L1>L2,两力臂之间夹角为θ。本手制动杠杆采用了仿“足”形设计,结构新颖、简单、可靠,替代了手制动滑轮,适用于短牵引梁、空间狭小的铁路车辆,用于放大手制动机的输出力,能够满足车辆在规定坡道驻车的要求。并且输入力臂L1、输出力臂L2的长度以及两力臂之间夹角θ可根据设计需要进行调整,用来改变杠杆的放大倍率。
Foot-shaped hand brake lever
一种“足”形手制动杠杆
2021-09-10
Patent
Electronic Resource
Chinese
IPC: | B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES |
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