Failure analysis and solution of 8750-65 bucket lifting and pulling roller end shaft in Heidaigou Open-pit Coal Mine
In order to solve the failure of the end shaft and bearing of the lifting and pulling drum of the 8750-65 stepping bucket shovel,based on the driving motor and drum installation structure of the bucket shovel lifting and pulling system,as well as the changes in the working load and force situation of the drum bearing and end shaft under the direct drive mode of the gearless transmission motor,the article analyzes the causes of bearing failure and provides the corresponding solutions.
stepping bucket shovelgearless drivelifting and pulling rolleroversized bearing shaft failure