The invention relates to the technical field of engineering machinery, in particular to a supporting chain wheel and engineering machinery. The supporting chain wheel comprises a wheel shaft, a wheel body, a rolling bearing, a first framework sealing structure and a second framework sealing structure. The wheel body is arranged outside the wheel shaft in a sleeving mode. The rolling bearing is arranged between the wheel shaft and the wheel body; the first framework sealing structure is arranged on the periphery of the wheel shaft in a sleeving mode and located outside the rolling bearing. The second framework sealing structure is arranged on the inner circumference of the wheel body and located outside the rolling bearing, the second framework sealing structure rotationally abuts against the first framework sealing structure, and at least one oil cavity suitable for containing lubricating oil is formed between the second framework sealing structure and the first framework sealing structure. According to the supporting chain wheel, impurities such as soil and dust are prevented from entering the supporting chain wheel, and the sealing performance is good.
本发明涉及工程机械技术领域,具体涉及一种托链轮及工程机械。托链轮包括轮轴、轮体、滚动轴承、第一骨架密封结构和第二骨架密封结构,轮体套设在轮轴的外部;滚动轴承设置在轮轴与轮体之间;第一骨架密封结构套设在轮轴的外周上,并位于滚动轴承的外部;第二骨架密封结构设置在轮体的内周上,并位于滚动轴承的外部,第二骨架密封结构与第一骨架密封结构旋转抵接,并与第一骨架密封结构之间形成至少一个适于容纳润滑油的油腔。本发明提供的托链轮,防止泥土灰尘等杂质进入托链轮中,密封性能好。
Supporting chain wheel and engineering machinery
一种托链轮及工程机械
2021-09-21
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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