Harvester for potatoes

Abstract

The invention belongs to a potato lifter used with roller tractor in the technical field of cereal harvesting machine. A simulating soil packer is mounted in front of a digging shovel assembly which has a soil cutting leakage prevention circular tray device respectively at two sides and a bar vibrating hoisting equipment behind; a shovel chain synchronization regulation device is fixed in the middle of a frame, a supporting traveling device is fixed below the rear part of the frame, a suspending rack is fixed at front upper part of the frame and a transmission system is positioned at front upper part and left side respectively; the transmission system is composed of a steering gear box and a chain transmission system. The shovel chain synchronization regulation mechanism fulfills the synchronization regulation of the angles of the digging shovel and an elevator chain drive supporting chain; the digging shovel is adjustable if the angle digging into soil ranges from 14 degree to 25 degree and the digging depth is 100mm to 300 mm. The invention is applicable for various ridge height and digging depth with strong adaptability of the plot, which has the advantages of stable digging depth and operation, convenient adjusting, no blockage, compact structure, simple fabrication technics and low cost.

Description

technical field [0001] The invention belongs to the technical field of agricultural harvesting machinery, in particular to a potato harvester matched with a wheeled tractor. Background technique [0002] The potato harvester is an indispensable mechanical equipment for modern potato agricultural production. It can greatly reduce the labor intensity of the potato harvesting process and improve production efficiency. my country has a vast territory, and the soil conditions in each potato planting area are significantly different, and the ridging parameters vary greatly. At present, there is an urgent need for a potato harvester with strong adaptability, stable performance, and easy adjustment. [0003] There are various types of potato harvesters currently in use, and the following shortcomings are common: (1) Most small machines do not have profiling pressing wheels, and the depth of digging shovels into the soil is unstable and fluctuates greatly; (2) The height of the suppo...

AI Technical Summary

Problems solved by technology

[0003] There are various types of potato harvesters currently in use, and the following shortcomings are common: (1) Most small machines do not have profiling pressing wheels, and the depth of digging shovels into the soil is unstable and fluctuates greatly; (2) The height of the supporting walking wheels cannot be adjusted, or Inconvenient adjustment, poor adaptability to different ridge heights; (3) Digging shovel entry angle is not adjustable, or the adjustment range is too small to avoid interference between digging shovels (or grids) and chain rods; (4) Multiple shovels The combined harvester mostly supports the digging shovel with an integral beam (or steel pipe, steel plate) on the bottom surface. The beam (or steel pipe, steel plate) at the gap between the shovel blades causes a large surface facing the soil, which easily leads to poor soil flow and increased resistance. , can also cause entanglement of seedling stems or weeds and soil congestion; (5) The height of the output end of some harvester digging shovels is too low to transport the soil to the top of the passive support sprocket of the lifting chain, resulting in soil congestion here. At the same time, it also causes the relative speed of the chain bar in the vertical direction of the shovel surface to be too large with the potato-containing soil, thereby causing an increase in the potato damage rate; (7) The passive support sprocket is not supported by a cantilever, and its shaft is directly connected to the frame. As a result, the side (or frame) of the frame at the connection extends downwards and is close to the excavating shovel. During work, it often enters the soil together with the excavating shovel, causing blockage and increasing resistance

Images