A grass crushing mechanism in a grain combine harvesting equipment

Abstract

The invention belongs to the technical field of agricultural equipment and provides a grass crushing mechanism in grain combined harvesting equipment. The grass crushing mechanism comprises the following components: a grass discharging hole bottom plate, a grass discharging and feeding assembly component, a movable knife grass crushing assembly component, a chain wheel driving assembly and a fixed knife assembly; under the driving of the chain wheel driving assembly, the grass discharging and feeding assembly component rotates and materials are fed into a grass crushing region space from a discharging region space; the movable knife grass crushing assembly component rotates and is matched with the fixed knife assembly to carry out grass crushing. The grass crushing mechanism has the advantages of compact structure, light weight, low cost, good mechanical properties and extremely good grass crushing effect; the power consumption is reduced and the space is also saved; the reliability and safety of the device are also greatly improved; meanwhile, crushed grass does not need to be manually raked after the grass is crushed, so that a lot of time and manpower are saved and the working efficiency is improved; subsequent ploughing work of a tractor is facilitated.

Description

technical field [0001] The invention belongs to the technical field of agricultural equipment, and relates to combined grain harvesting equipment, in particular to a grass breaking mechanism in the combined grain harvesting equipment. Background technique [0002] With the promulgation of the national environmental protection policy, returning straw to the field is beneficial to improve soil fertility, and farmers are not allowed to directly ignite and burn the straw left in the field after harvesting. Most of the existing combined harvesting equipment processes straw directly. Straws are scattered in the field, and because the long straws are too long, it will take a long time to rot naturally and be used as fertilizers. When the farmers plow the land next time, these long straws that have not rotted will affect the farming operations. To save trouble, farmers often directly Burning the long straw in the field, directly burning the straw in the field will cause many hazards...

AI Technical Summary

Problems solved by technology

[0002] With the promulgation of the national environmental protection policy, returning straw to the field is beneficial to improve soil fertility, and farmers are not allowed to directly ignite and burn the straw left in the field after harvesting. Most of the existing combined harvesting equipment processes straw directly. Straws are scattered in the field, and because the long straws are too long, it will take a long time to rot naturally and be used as fertilizers. When the farmers plow the land next time, these long straws that have not rotted will affect the farming operations. To save trouble, farmers often directly Burning the long straw in the field, directly burning the straw in the field will cause many hazards: 1), pollute the air environment, endanger human health; Traffic accidents affect road traffic and aviation safety; 4), damage the soil structure, resulting in a decline in the quality of cultivated land; 5), the billowing smoke and scorched earth formed by burning straw are the greatest damage to the environmental image of a region

[0003] In the agricultural field, the labor force is gradually decreasing, and time is very precious to people, especially in the autumn harvest season, it is particularly important to reduce the workload of staff, save time, and improve work efficiency, which is conducive to the rapid and efficient development of agriculture , the grass-cutting device in the grain combined harvesting equipment of the prior art is not only complicated in structure, but the grass-breaking device is seriously entangled when the amount of straw is large or encounters straw such as grains with high toughness and difficult to cut, and the straw is not easy to come out. In order to achieve the purpose of crushing grass by driving the grass crushing drum assembly through the threshing drum, their defect is that the chain directly drives the moving knife. Due to the limited speed ratio, it is necessary to increase the radius of the grass crushing drum, resulting in large volume, heavy weight, and high cost. , secondly, the open transmission mode has poor lubrication effect, short service life and poor crushing effect, and the grass breaking device further increases the longitudinal size of the combined grain harvesting equipment, and the structure is complicated

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