The invention discloses an electromagnetic exhaust braking device for an automobile, which comprises an exhaust valve, wherein the exhaust valve comprises an exhaust pipe body with an exhaust port, arotating shaft coaxially arranged in the exhaust pipe body and a disc which is fixed to the rotating shaft and can block the exhaust port of the exhaust pipe body, the exhaust valve is connected withan electromagnetic driving mechanism capable of driving the rotating shaft to rotate to open or close the exhaust port, the electromagnetic driving mechanism comprises an electromagnetic mechanism shell, an electromagnetic coil arranged in the electromagnetic mechanism shell and an iron core which is arranged in the electromagnetic coil and can move forwards and backwards under electromagnetic force, and a push rod mechanism capable of enabling the rotating shaft to rotate is connected between the iron core and the rotating shaft. In the electromagnetic driving device, an auxiliary push rod and a main push rod are flexibly connected, a compensation spring is arranged between the auxiliary push rod and the main push rod, and if there is an error in the attraction position of the iron core,the compensation spring can be compressed by electromagnetic force to compensate the error when the movement stroke of components of the disc is small, and the iron core and a base cannot be completely attracted or the disc cannot be completely closed.
本发明公开了一种汽车用电磁式排气制动装置,包括排气阀,排气阀包括具有排气口的排气管体、同轴设置于排气管体内的转轴和与转轴固定、可封堵排气管体的排气口的碟片,排气阀连接有可驱动转轴转动、使排气口开启或封闭的电磁驱动机构,电磁驱动机构包括电磁机构壳体、设置于电磁机构壳体内的电磁线圈和设置于电磁线圈内、可受电磁力前后移动的铁芯,铁芯与转轴之间连接有可使转轴转动的推杆机构。电磁驱动装置中,副推杆和主推杆采用柔性连接,中间有补偿弹簧,若铁芯吸合位置存在误差,造成碟片因部品运动行程偏小,铁芯与底座无法完全吸合或者碟片无法完全闭合时,此时电磁力会压缩补偿弹簧,弥补误差。
Electromagnetic exhaust braking device for automobile
一种汽车用电磁式排气制动装置
2020-08-21
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Automobile emergency braking device and braking method
Europäisches Patentamt | 2023
|Engineering Index Backfile | 1960
|