Rotary blade depth adjustment mechanism

Abstract

The invention provides a depth regulation mechanism for a rotary blade. The depth regulation mechanism comprises a gearbox body, wherein a main mudguard, a resistance tilling blade and a rotary blade assembly are arranged on the gearbox body. The depth regulation mechanism also comprises a resistance block and a longitudinally arranged depth regulation plate, wherein one end of the resistance block is connected with the lower part of the resistance tilling blade, and the other end of the resistance block is connected with the lower end of the depth regulation plate; a plurality of regulation teeth are longitudinally reserved on the depth regulation plate; a pressing mechanism is arranged on the main mudguard; the depth regulation plate is pressed on the main mudguard by the pressing mechanism; the regulation teeth are clamped on the main mudguard. According to the depth regulation mechanism, the height of the resistance block is regulated by the depth regulation plate, so that the tilling depth of the rotary blade is regulated; the depth regulation plate is simple in structure, and the pressing mechanism is loosened to move the depth regulation plate upwards and downwards, and then is reset to press the depth regulation plate, so that the depth regulation mechanism is easy and convenient to operate, and influence on the normal running of a mini tiller is eliminated; the resistance tilling blade can be regulated up and down by virtue of a plurality of regulation holes in the resistance tilling blade.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a rotary blade depth adjustment mechanism. Background technique [0002] Because of its strong ability to crush soil and flat surface after plowing, it has been widely used. According to different geology, different needs of crops and plowing depth requirements, the rotary tillage depth of the rotary tiller often needs to be adjusted. Therefore, traditional rotary tillers have adjustment mechanisms, but most of them use pin-hole semi-automatic height adjustment. Every time the height is adjusted, the engine must be turned off to remove the safety pin, pull out the height adjustment pin, and then insert the height adjustment pin in the specified position. In the hole, the operation process is complicated. In the prior art, the relative height (i.e. the depth of rotary tillage) of the rotary tiller rotary knife and the wheel of the rotary tiller is adjusted by means...

AI Technical Summary

Problems solved by technology

Therefore, traditional rotary tillers have adjustment mechanisms, but most of them use pin-hole semi-automatic height adjustment. Every time the height is adjusted, the engine must be turned off to remove the safety pin, pull out the height adjustment pin, and then insert the height adjustment pin in the specified position. In the hole, the operation process is complicated

In the prior art, the relative height (i.e. the depth of rotary tillage) of the rotary tiller rotary knife and the wheel of the rotary tiller is adjusted by means of adjusting rod and adjusting rod sleeve, such as the Chinese patent whose publication number is 201138924, the adjusting rod and adjusting The rod casing adopts thread fit to form a screw structure. When adjusting the depth of rotary tillage, the adjustment rod needs to be rotated. In actual use, the operation is very cumbersome and laborious.

The technology disclosed in the Chinese patent with the publication number 202026576U has been improved compared with the aforementioned technology. Screws are used to fix the adjustment rod and the adjustment rod sleeve, and the screw is loosened when the height needs to be adjusted. Although this method is more convenient to use, It also has its disadvantages. After the screw is loosened, the adjustment rod loses its limit and is easy to fall off quickly, causing hidden dangers of hurting the human body or damage to the rotary tiller, and it is difficult to guarantee the adjustment accuracy during adjustment.

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