Soil and potato separation device of potato harvester

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a soil and potato separation device of a potato harvester. The device comprises a frame; a flexible anti-damage mechanism and a clay soil cleaning mechanism are sequentially installed on the frame from front to rear; a rod bar soil and potato separation mechanism is arranged below the flexible anti-damage mechanism and the clay soil cleaning mechanism; a transport channel between the rod bar soil and potato separation mechanism and the flexible anti-damage mechanism and the clay soil cleaning mechanism is gradually reduced; the bottom of the frame is provided with a depth wheel; the clay soil cleaning mechanism is not less than three groups; the flexible anti-damage mechanism, the clay soil cleaning mechanism, the rod bar soil and potato separation mechanism are connected by power through a transmission mechanism respectively. According to the device, the flexible anti-damage mechanism is utilized to hold and transport potatoes, the soil and potato separation effect is not affected, and the damage of the potatoes on an ascending transport chain caused by mechanical collisions is greatly reduced at the same time, and the clay soil cleaning mechanism further improves the soil and potato separation effect, and improves the potato-exposing rate.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a soil and potato separating device of a potato harvester. Background technique [0002] The working principle of the pole-type soil and potato separation device of the commonly used potato harvester is as follows: Figure 8 As shown, the power is transmitted to the drive shaft by the gearbox to make it rotate, and the drive shaft transmits the power to the driven shaft through the lifting chain of the moving rod; The pole lifting chain vibrates; the depth-limiting wheel plays the role of supporting and adjusting the digging shovel's angle of entry into the soil; during operation, the pole lifting chain shakes and loosens the soil excavated by the digging shovel and the mixture of potato pieces and soil, making it broken and separated The clods of soil fall from the gap between the poles of the pole lifting chain, and the separated and clean potato pieces are laid ...

AI Technical Summary

Problems solved by technology

[0004] 1. Under the condition of high soil viscosity, the soil has a strong adhesion to potatoes, and the soil is easy to agglomerate, which makes the separation effect of soil and potatoes not good, and the rate of clear potatoes is low

[0005] 2. Due to the vibration separation of the soil on the pole lifting chain, the thrown potatoes collide with the pole when they fall, which is easy to cause damage to the potatoes, especially the damage to the potato skin is more serious

[0006] 3. The lifting chain is vibrated by means of shaking wheel excitation, and the adjustment of its amplitude must be realized by changing the size of the shaking wheel or manually adjusting the relative position of the shaking wheel, which is inconvenient to operate; and its vibration frequency cannot be adjusted, which cannot meet multiple working conditions Requirements, not conducive to the search for the best operating point

[0009] 1. Since the potatoes are conveyed by shaking on the pole lifting chain, they will collide with the poles when they fall, which will easily cause damage to the surface of the potatoes, especially the damage to the potato skin.

[0010] 2. The vibration wheel vibration mechanism is used to shake the lifting chain, and the adjustment of its amplitude must be achieved by changing the size of the shaking wheel or manually adjusting the relative position of the shaking wheel, which is inconvenient to operate; and its vibration frequency cannot be adjusted, which cannot meet the requirements of multiple working conditions , which is not conducive to finding the best operating point

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