Driving speed change device for agricultural machinery

Abstract

The invention discloses a driving speed change device for agricultural machinery. The driving speed change device comprises a push rod, a receiving barrel, a harvesting head, a guide revolving body and a boosting wheel, wherein the push rod is welded on the outer surface of a bottom fixed plate; the receiving barrel is arranged on the upper surface of the bottom fixed plate; the guide revolving body is driven to move by a driving transmission box in order to harvest external Chinese chives; a rotary box body inside the driving transmission box is driven to rotate together; the fixing range ofan extension main core is expanded by a surface core; and under the external stress, an internal inclination fixed core fixed by a fixing ball extends by an inclination angle, and an inclination sidedrives an ejector headers against the inclination fixed core at certain hardness, so that an outer layer is subjected to certain inclination guide fixing. Contact force is uniformly born by a spreading side and a protection rubber body to drive a middle fixed column to move, so that the collision force is variable during internal driving speed change. The buffering depth is adjusted according to the collision distance and the force, so that deformation and loosening after long-time collision and contact are prevented.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and more specifically relates to a drive transmission device for agricultural machinery. Background technique [0002] When the agricultural machinery for harvesting leeks is running, the driving speed of the harvesting needs to adjust the harvesting speed according to the length of the leeks. There will be a fitting joint between the driving gearbox and the harvesting equipment, so that the harvesting equipment can be in time. The gearbox is synchronized according to the adjustment. [0003] Based on the inventor's discovery above, the drive speed change device of existing agricultural machinery mainly has the following deficiencies, such as: [0004] When the drive gearbox is adjusted according to the speed that is sometimes fast and sometimes slow, the conflicting buckle between the harvesting equipment and the drive gearbox will be deformed or even loose due to the long-term speed adjus...

AI Technical Summary

Problems solved by technology

[0004]When the drive gearbox is adjusted according to the speed from time to time, the conflict between the harvesting equipment and the drive gearbox will be due to the long-term speed adjustment of the gearbox Contact and impact will cause deformation or even looseness, which will easily cause the subsequent drive gearbox to resist, delay, and slip when driving the equipment.

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