The invention relates to the technical field of railway vehicles, and particularly discloses a parking cylinder and a brake. The stopping cylinder comprises a cylinder body, a ratchet wheel and a locking claw which are rotatably arranged relative to the cylinder body, and a first relieving device connected to the cylinder body, the locking claw is arranged on one side of the ratchet wheel, the first relieving device comprises a mounting seat, a piezoelectric actuating assembly and a displacement amplifying assembly, and the mounting seat is connected to the cylinder body and located around the ratchet wheel; the piezoelectric actuating assembly is provided with a first end part and a second end part which generate far displacement when being electrified, the first end part is fixedly arranged relative to the mounting seat, and the displacement amplifying assembly is arranged between the second end part and the locking claw so as to drive the locking claw to rotate by amplifying the displacement generated when the piezoelectric actuating assembly is electrified. According to the parking cylinder and the brake provided by the invention, an operator can remotely control the first relieving device, so that the automatic parking braking state of the parking cylinder is relieved, and the first relieving device is small and compact in structure and can be directly mounted on the parking cylinder.
本发明涉及轨道车辆技术领域,具体公开了一种停放缸和制动器。停当缸包括缸体、相对缸体可转动设置的棘轮和止动爪、连接于缸体的第一缓解装置,止动爪设于棘轮一侧,第一缓解装置包括安装座、压电致动组件以及位移放大组件,安装座连接于缸体并位于棘轮周围,压电致动组件具有在通电时产生相远离位移的第一端部和第二端部,第一端部相对安装座固定设置,位移放大组件设于第二端部和止动爪之间,以通过放大压电致动组件通电时所产生的位移来驱动止动爪转动。本发明提供的停放缸和制动器中,操纵人员可远程控制第一缓解装置,使停放缸自停放制动状态缓解,并且第一缓解装置结构小巧紧凑,能直接安装在停放缸上。
Parking cylinder and brake
停放缸和制动器
2024-08-16
Patent
Electronic Resource
Chinese
IPC: | B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES |
Parking cylinder, brake cylinder with parking function, brake clamp unit and rail vehicle
European Patent Office | 2023
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