Silage harvester and knife grinding device thereof

Abstract

The invention discloses a silage harvester and a knife grinding device thereof. The knife grinding device comprises an adjusting ratchet wheel, a positioner and a grinding sliding block. The two ends of the positioner are in threaded connection with the adjusting ratchet wheel and the grinding sliding block correspondingly. The knife grinding device further comprises a knife stone and a spring stop pin, and the knife stone is assembled in the positioner through a locking assembly. The top of the locking assembly abuts against the adjusting ratchet wheel in a contact mode, the spring stop pin is installed at the end, away from the adjusting ratchet wheel, of the grinding sliding block, the positioner is provided with a plurality of positioning holes formed in the circumferential direction, and the spring stop pin is provided with pins used for being bounced into the positioning holes. According to the knife grinding device, the knife stone can be locked or disassembled, assembled and replaced by adjusting a thread pair of the ratchet wheel and the positioner, a thread pair of the grinding sliding block and the positioner, the spring stop pin and the locking assembly; and meanwhile, the feeding requirement of the knife stone can be met, the knife grinding device is simple and compact in structure and convenient and rapid to operate, and the working efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a sharpening device. The invention also relates to a silage harvester provided with the sharpening device. Background technique [0002] During the working process of the silage harvester, it includes a series of processes such as harvesting, feeding, chopping, grain crushing, and throwing of silage materials. The friction of the soil and gravel brought into the cutting pair of the movable and fixed knife will cause serious wear and tear on the blade of the movable knife, and the cutting edge will become blunt. If it is not sharpened in time, the quality of the silage material will be reduced, and the energy consumption of the whole machine will increase. It may even lead to blockage of material flow and affect the operation of the whole machine. However, the existing manual mechanical knife sharpening device generally needs to disassemble the moving knife blade ...

AI Technical Summary

Problems solved by technology

[0002] During the working process of the silage harvester, it includes a series of processes such as harvesting, feeding, chopping, grain crushing, and throwing of silage materials. The friction of the soil and gravel brought into the cutting pair of the movable and fixed knife will cause serious wear and tear on the blade of the movable knife, and the cutting edge will become blunt. If it is not sharpened in time, the quality of the silage material will be reduced, and the energy consumption of the whole machine will increase. It may even lead to blockage of material flow and affect the operation of the whole machine

However, the existing manual mechanical knife sharpening device generally needs to disassemble the moving knife blade first, then use the grinding device for grinding, and then reinstall the blade on the chopping device after sharpening

The above-mentioned operation process is cumbersome and time-consuming, the degree of automation is low, it is difficult to guarantee the sharpening effect, it is easy to damage the dynamic balance of the chopping knife roller, and it is easy to delay the harvesting time due to the long downtime

[0003] Therefore, how to avoid the low degree of automation and inconvenient operation of the existing blade grinding device is a technical problem that those skilled in the art need to solve at present.

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