Potato multi-stage conveying and separation excavator

Abstract

The invention relates to the technical field of potato harvest equipment in agricultural machinery, in particular to a potato multi-stage conveying and separation excavator. The excavator includes a machine frame and is characterized in that digging shovels are arranged at the lower front part of the machine frame; cutting discs and penetrating angle adjusting mechanisms are arranged on the two sides of the digging shovels; a conveying chain is arranged at the rear part of the digging shovels; a lifting-transporting type conveying separating chain is arranged at the rear part of the conveying chain; a vibrating roller is arranged in the middle of the lifting-transporting type conveying separating chain; a membrane and stem residual separating device is arranged at a corresponding position at the rear part of the lifting-transporting type conveying separating chain; a collecting box is arranged at the rear part of the membrane and stem residual separating device; a gearbox and a hanging rack are mounted at the upper front part of the machine frame; travelling support wheels are arranged at the lower rear part of the machine frame; a depth adjusting plate is arranged at a corresponding position on the machine frame at the upper end of the support wheels. According to the invention, the transmission speed of the conveying chain is higher than that of the separating chain, so that the probability of digging shovel blockage caused by the soil and potato mixture is reduced, and conditions are provided for the separating chain to further separate soil from potatoes; the separating effect is good without blockage, and defects in the prior art are effectively overcome.

Description

technical field [0001] The invention relates to the technical field of potato harvesting equipment in agricultural machinery, in particular to a potato multi-stage conveying and separating excavator. Background technique [0002] With the rapid development of agricultural mechanization technology, more and more mechanized operations are used for potato harvesting. The action of potato harvesting machinery is generally to excavate potato tubers in the soil with a digging shovel, use a separation device to separate most of the soil, and lay the separated potatoes on the ground. Generally, according to the different separation devices, there are several types such as throwing wheel type, vibrating screen type and chain rod lifting type. When the throwing wheel works, the throwing wheel throws the potato pieces dug out by the digging shovel to the side that has been collected, forming a pile of 80cm-280cm wide, which is easy to cause collision damage to potatoes, and it is diff...

AI Technical Summary

Problems solved by technology

When the throwing wheel works, the throwing wheel throws the potato pieces dug out by the digging shovel to the side that has been collected, forming a pile of 80cm-280cm wide, which is easy to cause collision damage to potatoes, and it is difficult to pick up; vibrating screen separation device Use a vibrating screen with a certain angle to the ground to directly separate the rising objects, but the rate of clear potatoes is low, and its separation ability is directly related to the soil moisture content and slope

The separation effect of the connecting rod lifting type is good, but the connecting rod close to the excavating shovel is prone to friction and collision with the ground. Improper connection of the shovel and pole elevating separation device during the potato digging operation (easy to cause incomplete separation of soil and potatoes, easy to cause congestion before the machine) and other problems

In addition, there are problems such as serious damage to the potato stem, poor adaptability to different soil types, and inability to separate the fruit stem and fruit film when the separation device of the existing potato excavator is in operation.

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