Silage harvester automatic knife sharpening device

Abstract

The invention provides a silage harvester automatic knife sharpening device which is characterized by comprising a reciprocating motion mechanism and a knife sharpening feeding mechanism, wherein the reciprocating motion mechanism comprises a guide rail base, two guide rails horizontally installed on the guide rail base, paired sliding blocks installed on the two guide rails respectively, a sliding block plate for fixedly connecting the paired sliding blocks to form a whole body, a lead screw, a lead screw supporting seat, a screw nut, a motor and a pawl; the knife sharpening feeding mechanism comprises a knife sharpening shell, a knife grinder, a worm wheel, a worm gear, a shaft, a feeding sleeve and a ratchet and is connected with the sliding block plate of the reciprocating motion mechanism through the knife sharpening shell; before a knife is sharpened, the knife grinder is in contact with a moving blade of a rotary knife type cutter; and during knife sharpening, the screw nut drives the knife grinder to carry out reciprocating motion under the driving of the motor, and thus a cutting edge of the moving blade on a drum is sharpened again. According to the silage harvester automatic knife sharpening device, the structure design is simple and practical, the manufacturing difficulty and the cost are lowered, operation control is liable, and the working efficiency and the operation quality are improved.

Description

technical field [0001] The patent of the invention belongs to the field of agricultural machinery, and specifically relates to an automatic knife sharpening device for a silage harvester, which is suitable for supporting the hob-type cutter of the silage harvester. [0002] technical background [0003] With the rapid development of animal husbandry and the adjustment of corn planting structure, straw harvesting such as corn silage harvesting or combined ear straw harvesting has developed rapidly, so silage corn harvesters are widely used. But when the effect of the machine reaches a certain amount, the moving knife blade on the chopping hob of the straw chopping device will be worn to varying degrees, resulting in poor chopping quality and high power consumption, which requires sharpening. Since there are many moving knives on the chopping hob of the straw chopping device, if the moving knives are sharpened one by one, not only the efficiency is low, but also it is difficult...

AI Technical Summary

Problems solved by technology

However, when the effect of the machine reaches a certain level, the moving knife blade on the hob of the straw chopping device will be worn to varying degrees, resulting in poor chopping quality and high power consumption, requiring sharpening.

Since there are many moving knives on the chopping hob of the straw chopping device, if the moving knives are sharpened one by one, not only the efficiency is low, but also it is difficult to ensure the dynamic balance of the chopping hob

[0004] At present, foreign silage harvesters have matching automatic sharpening systems or manual sharpening devices. Manual sharpening is less efficient than automatic sharpening. Some domestic models have matching manual sharpening devices, which are less efficient.

The structure and control system of the automatic sharpening system of foreign silage harvesters are complex and costly

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