Self walking type automatic charging corn thresher

The utility model relates to a self walking type automatic charging corn thresher. On the basis of an automatic charging corn thresher which is disclosed by the CN2518307Y, the utility model is additionally provided with a tension type clutch device, namely, a tension type clutch device which is composed of a lever, a self-locking type handle and a roller is added onto a triangular belt between a clutch and a driving wheel of the thresher. Under the normal condition, the triangular belt between the clutch and the driving wheel of the thresher is loose. When a diesel engine of a motor vehicle works, the clutch can not drive the driving wheel of the thresher to run. When the thresher needs to work, the self-locking type handle is pulled up to be locked, the lever is driven to stress upwards to cause the roller to be stressed to press down, the triangular belt between the clutch and the driving wheel of the thresher is pulled tightly, therefore the clutch drives the driving wheel of the thresher to run to cause the thresher to work. On the contrary, the self-locking type handle is put down, and the thresher does not work. The utility model has the advantages that the working condition of the thresher can be controlled, the run idle phenomenon generated when the motor vehicle walks and the thresher does not need to work is avoided, and the service life of the thresher is extended.