The invention provides a bottom door opening and closing mechanism which comprises a bottom door, a main shaft and a connecting rod assembly used for connecting the bottom door and the main shaft, and the main shaft can rotate under the action of external force and is in transmission with the connecting rod assembly to open and close the bottom door; the main shaft is sleeved with a bearing seat, the bearing seat can be connected with a vehicle body where the bottom door is located, a shaft shoulder is formed on the main shaft, a safety lock is arranged between the bearing seat and the shaft shoulder, and the safety lock comprises a first elastic piece arranged on the main shaft in a sleeving mode. The two ends of the first elastic piece abut against and extrude the bearing seat and the shaft shoulder respectively. The railway wagon bottom door has the beneficial effects that the safety lock is arranged on the main shaft, so that the self-locking stability of the railway wagon bottom door is improved.
本发明提供一种底门开闭机构,所述底门开闭机构包括底门、主轴、用于连接所述底门和所述主轴的连杆组件,所述主轴能够在外力作用下转动并传动于所述连杆组件对所述底门进行开闭;所述主轴上套设有轴承座,所述轴承座能够连接所述底门所在的车体,所述主轴上形成有轴肩,所述轴承座与所述轴肩之间设置有安全锁,所述安全锁包括套设在所述主轴上的第一弹性件,所述第一弹性件的两端分别抵接并挤压所述轴承座与所述轴肩。本发明的有益效果包括:通过在主轴上设置安全锁,以提高铁路货车底门的自锁稳定性。
Bottom door opening and closing mechanism
底门开闭机构
2023-09-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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