The invention discloses a sander for a tramcar, which belongs to the field of mechanical design of railway vehicles and comprises a sanding shell, an adjusting inner pipe, an air passing flange and a sand outlet flange. A sand inlet circular groove is formed in the sand spraying shell in the circumferential direction, and an air inlet channel penetrates through the interior of the side wall of the sand spraying shell. The adjusting inner pipe is arranged in the sanding shell, a plurality of inner notches are formed in the side wall of the adjusting inner pipe, the sand inlet circular groove is communicated with an inner cavity of the adjusting inner pipe through the inner notches, and one end of the air inlet channel is communicated with the end of the cavity of the adjusting inner pipe. The air channel and the sand channel are subjected to pneumatic flow channel design, flow stabilization, resistance reduction and energy loss reduction are achieved, and the compressed air utilization rate is increased. Compared with a traditional mode that the sand spraying amount is adjusted by changing air pressure through a throttling valve, the sand spraying device is provided with an integrated mechanical adjusting structure, the sand spraying amount can be adjusted by directly changing the flowing section of sand grains by rotating parts, the sand spraying device is simple and convenient to use, and the use cost is reduced.
本发明公开了一种有轨电车用撒砂器,属于轨道车辆机械设计领域,包括撒砂壳体、调节内管、过风法兰以及出砂法兰。撒砂壳体沿周向开设有进砂圆槽,撒砂壳体的侧壁内部贯穿有进风通道。调节内管设置于撒砂壳体的内部,调节内管的侧壁开设有若干内槽口,进砂圆槽通过内槽口与调节内管的内部腔体连通,进风通道一端与调节内管的腔体端部连通。通过对风道和砂道进行符合气动的流道设计,稳流减阻减少能量损失,提升压缩空气利用率。相对于传统的通过节流阀改变风压来调整撒砂量,本发明提供的撒砂器设计有集成机械调节结构,可直接通过旋转零部件改变砂粒流通的截面来调整撒砂量,简单方便,降低了使用成本。
Sand sprayer for tramcar
一种有轨电车用撒砂器
2024-04-19
Patent
Electronic Resource
Chinese
IPC: | B61C Lokomotiven , LOCOMOTIVES |
Engineering Index Backfile | 1948