Harvester for rhizomatic crops

Abstract

The invention relates to a harvester for rhizomatic crops. The harvester comprises a rack, a scraper knife located at the front end of the rack, and a vibration screen located on the rear middle portion of the rack. Vertical rotating rolls are arranged at the two sides of the front end of the rack respectively, clearances are reserved between the rotating rolls and the rack, and the two rotating rolls are connected with a power shaft. At least one pair of annular secondary-primary sealing pieces is arranged in each rotating roll and located in the clearance between each bearing pedestal and a corresponding bearing pedestal shaft, the outer portions of the secondary-primary sealing pieces are in interference fit with the bearing pedestals, and the bearing pedestal shafts are arranged in center holes of the secondary-primary sealing pieces. A rear ridge pressing roll is arranged below the rear portion of the rack, and is hinged to the rack. The harvester is suitable for multiple soil types such as sandy soil, sandy loam and intermediate-viscidity soil; a tri-wheel vibration system is adopted, so that the separation effect of the crops and the soil is good, the harvesting rate is higher than 99%, and the breakage rate is lower than 1%. Due to the design of the rear ridge pressing roll and a collecting baffle, damage to the crops is reduced, the crops are centralized after falling to the ground, and harvesting is easy. Grass blocking is avoided, soil leakage is fast, and the service life is long.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery and equipment, and in particular relates to a rhizome crop harvester. Background technique [0002] Rhizome crops include potatoes, sweet potatoes, peanuts, garlic, carrots, etc., which account for a large proportion of all crops in my country. In particular, potatoes. Since January 2015, the country has begun to promote the strategy of turning potatoes into a staple food, becoming the fourth largest staple food crop after rice, wheat, and corn. The planting area of ​​potatoes will gradually expand to 150 million mu. It is estimated that by 2020 , More than 50% of potatoes in my country will be consumed as staple food. Traditional agriculture mainly relies on manual digging to harvest root crops, which is labor-intensive for farmers and low in harvesting efficiency. In recent years, harvesting machinery has been gradually promoted in large-scale planting areas, but most of these ha...

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Problems solved by technology

[0003] In order to solve the above problems, the present invention designs a new type of rhizome crop harvester to solve the problems of poor soil adaptability, poor separation effect of crops and soil, low harvest rate, high damage rate and scattered harvested crops of existing harvesting machinery. question

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