Potato harvester excavator

Abstract

The invention provides a potato harvester excavating device which is characterized in that two vertical plates are fixedly connected with transverse rods respectively in a front-rear mode through a beam II, two lugs I stretch out of the middle of the beam II and are fixedly connected with the transverse rods through pull rods, a combined body of a beam I, soil cutting adjusting devices and soil pressing adjusting devices is arranged blow the beam II, two bent plates are symmetrically arranged below the protruding edges of the outer sides of the vertical plates respectively, ends of fixing arms stretching out of the middles of straight pipes are fixedly provided with mounting plates, shovel bodies I are arranged on the corresponding middle mounting plates, two shovel wings I and the lugs II of the corresponding mounting plates are connected, shovel bodies II are symmetrically arranged on the mounting plates on the two sides, shovel wings II and shovel wings III are connected with the lugs II of the mounting plates respectively, the inner ends of the two straight pipes of two excavating shovels are connected together and are arranged in bent plate holes through pin shafts II, the ends, away from the straight pipes, of crank arms and L-shaped bent plates are connected with U-shaped frames of adjusting frames respectively, and the end, penetrating through the protruding edges of the vertical plates and then stretching outwards, of screws are provided with nuts III. By means of the potato harvester excavating device, the excavating depth can be adjusted conveniently and precisely, and the application range is wide.

Description

technical field [0001] The invention provides a digging device for a potato harvester, which is mainly used for the potato harvester. Background technique [0002] At present, domestic potato harvesting has been basically mechanized. The digging depth of the potato harvester is an extremely important technical index. The basis for determining this index is to dig as little soil as possible under the premise of ensuring the yield, and ensure that the soil removed by the conveying separation sieve reaches more than 90%. Increase the rate of clear potatoes while controlling the rate of damaged potatoes. The digging depth depends on the adjustment position of the digging shovel and the degree of soil compaction of the soil pressure wheel, and it must also match the soil cutting depth of the soil cutting disc. [0003] Based on the above purpose and requirements, we have invented "a depth adjustment wheel for rhizome harvester", authorized patent number: ZL2012206411460. But, ...

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Problems solved by technology

However, it has been found through tests and practical applications that the adjustment of the adjustment device of the potato harvester involved in this patented technology is not very convenient, the adjustment effect is not ideal enough, and it is difficult to adapt to the use requirements of different regions and different potato varieties.

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