Horizontal lifting device used for cutting table

Abstract

The invention discloses a horizontal lifting device used for a cutting table. The device includes a main frame, a lifting frame, a hydraulic cylinder, a pin shaft, a driving sprocket wheel, a middle driven sprocket wheel, a double-row chain and tensioning wheels. The upper portion of the outer side of the main frame is sleeved with the lifting frame in a strided mode, the lifting frame and the main frame are hinged through the hydraulic cylinder, the driving sprocket wheel and the middle driven sprocket wheel are connected through the double-row chain, the double-row chain is pressed tightly through the outer portions of tensioning wheel chains, the driving sprocket wheel and the two tensioning wheels are installed on the main frame, the middle driven sprocket wheel is installed on the lifting frame, and the two tensioning wheels are located in the front of the driving sprocket wheel, arranged on the upper side and the lower side of the driving sprocket wheel respectively and opposite to each other. The device enables the cutting table to be more suitable for harvesting corncobs different in height and ensures the power transmission stability of the cutting table.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a cutting platform horizontal lifting device. Background technique [0002] Corn harvester is the key equipment to realize the mechanization of corn production. Its row adaptability is the main problem affecting the popularization and application of corn harvester. For this reason, experienced machinists will adjust the harvesting platform according to the ear height of corn during the operation process. Lifting adjustment, but the current corn harvester header is basically based on the lifting method of the corn harvester header. Under the action of the hydraulic cylinder, the header is rotated around a fixed axis to realize the vertical lift of the header. Although the structure is relatively simple, the cutting The rotation of the table around the fixed axis will inevitably lead to the change of the angle between the key components such as the grain divider, the...

AI Technical Summary

Problems solved by technology

[0002] Corn harvester is the key equipment to realize the mechanization of corn production. Its row adaptability is the main problem affecting the popularization and application of corn harvester. For this reason, experienced machinists will adjust the harvester according to the ear height of corn during the operation process. Lifting adjustment, but the current corn harvester header is basically based on the lifting method of the corn harvester header. Under the action of the hydraulic cylinder, the header is rotated around a fixed axis to realize the vertical lift of the header. Although the structure is relatively simple, the cutting The rotation of the table around the fixed axis will inevitably lead to the change of the angle between the key components such as the grain divider, the reel chain, and the ear picking roller on the header and the ground, which will affect the introduction, transportation and ear removal of corn stalks, and increase the ear drop. Therefore, the development of this type of device can ensure the profiling of the corn harvester header and ensure the stable transmission of header power to improve the adaptability of the corn harvester header to harvesting corn with different ear heights, and reduce the probability of the stalk being pushed down , it is of great practical significance to reduce the ear harvest loss

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