Method and device for judging hob wear conditions of harvester

Abstract

The invention discloses a method and a device for judging hob wear conditions of a harvester, which relate to the field of agricultural machinery. The method comprises the steps of: acquiring torque of a shredding roller of the harvester at a preset time interval, and humidity of the harvested material after shredding; judging torque variation trend and humidity variation trend; and determining the hob wear conditions of the harvester according to the torque variation trend and the humidity variation trend. The method and the device for judging hob wear conditions of the harvester can effectively avoid the packaging compactness and final fermentation degree of the harvested material from being affected by the wear of the hob, and can improve the working efficiency of the harvesting operation. Compared with the method of manual judgment, the method disclosed by the invention can accurately judge whether the hob has worn out, and has the advantages of high judgment accuracy and high practicability.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a method and a device for judging the wear condition of a hob of a harvester. Background technique [0002] At present, harvesters are usually used to harvest crops, and the stalk chopping device of the harvester mostly uses a chopping hob, and the specific working environment causes the blade of the chopping hob to wear to varying degrees after working for a certain period of time, resulting in cutting Poor crushing quality, continuous cutting, kneading and other problems. At this time, it is necessary to know the wear and tear of the chopping hob in time, so as to sharpen the knife in time, otherwise it will not only affect the packing compaction degree, and then affect the final fermentation degree, but also affect the operating efficiency of the harvesting operation. [0003] At present, the wear degree of the hob is usually judged according to the experience of the dri...

AI Technical Summary

Problems solved by technology

[0002] At present, harvesters are usually used to harvest crops, and the stalk chopping device of the harvester mostly uses a chopping hob, and the specific working environment causes the blade of the chopping hob to wear to varying degrees after working for a certain period of time, resulting in cutting Poor crushing quality, continuous cutting, kneading and other problems

At this time, it is necessary to keep abreast of the wear of the chopping hob in order to sharpen the knife in time, otherwise it will not only affect the packing compaction degree, and then affect the final fermentation degree, but also affect the working efficiency of harvesting operations

[0003] At present, the wear degree of the hob is usually judged according to the experience of the driver. However, various factors such as crop varieties, maturity, and harvesting environment across fields will affect the wear speed of the shredding hob, so the driver cannot timely Accurately judge the wear degree of the hob

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