Pneumatic large-particle-size seed single-grain dibbling device

Abstract

The invention discloses a pneumatic large-particle-size seed single-grain dibbling device. The pneumatic large-particle-size seed single-grain dibbling device comprises a frame and a seed box arrangedon the frame and used for seed falling; and the pneumatic large-particle-size seed single-grain dibbling device also comprises a seed blocking piece sleeving the periphery of the seed box, a seed pushing piece sleeving the periphery of the seed blocking piece, a hole digging piece sleeving the periphery of the seed pushing piece, a first driving mechanism used for driving the seed blocking piece,the seed pushing piece and the hole digging piece to be independently opened and closed, and a second driving mechanism used for driving the seed pushing piece and the hole digging piece to independently move up and down. The pneumatic large-particle-size seed single-grain dibbling device provided by the invention is simple in structure, reasonable in design and convenient to maintain in a laterperiod; one-time single-grain sowing can be achieved by adjustment of the distance between the seed blocking piece and the seed box through the special three-layer design of the seed blocking piece, the seed pushing piece and the hole digging piece; in addition, a series of actions of hole digging, soil expanding, seed falling and seed pushing are achieved through controlling of an air cylinder, and stable control is achieved; meanwhile, one working stroke period of the air cylinder is short, and the seeding speed is increased, so the working efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of sowing equipment, in particular to a pneumatic single-grain on-demand device for large-diameter seeds. Background technique [0002] As a large agricultural country in the world, my country has a long history of planting large-size crops. With the continuous development of the times, the planting technology of large particle size crops is also constantly reforming and innovating. Among them, the direct seeding technology is widely used because of its convenient use, high efficiency and high yield. At the same time, the direct seeding technology is of great significance to save labor, alleviate the contradiction of seasonal labor tension, and realize the light, professional and large-scale planting of large-grained crops. [0003] There have also been many seed on-demand devices at present, such as a kind of paddy hole sowing simple device whose publication number is CN209089393U, comprising a feeding me...

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Problems solved by technology

[0003] There have also been many seed on-demand devices at present, such as a kind of paddy hole sowing simple device whose publication number is CN209089393U, comprising a feeding mechanism, which includes a feeding tube, and the side of the upper end of the feeding tube is slid to cooperate with a retrieving sleeve. The side of the lower end of the tube is slidingly matched with a material tube sleeve, which is composed of two oppositely arranged half-tube sleeves; this scheme adopts manual operation, which cannot realize automatic operation and effectively reduce labor intensity

[0004] For another example, the lifting and positioning mechanism of a seeder whose publication number is CN203912515U includes a base plate, and a storage hopper for loading seeds is fixed on the base plate. Pass through the base plate, and the described feeding pipe is provided with a perforated tube outside, the lower part of the perforated tube has a tip, and the lifting and positioning mechanism includes a cylinder one, a cylinder two, a bracket one and a bracket two, and the cylinder one is fixed on the At the lower part of the base plate, the piston rod of the cylinder one is vertically downward, the second cylinder is fixed at the lower part of the base plate, the piston rod of the cylinder two is vertically downward, and one end of the support one is vertically fixed on the outer wall of the perforated pipe , the other end of support one is vertically fixed to the piston rod of cylinder one, one end of said support two is vertically fixed on the outer wall of the perforated pipe, and the other end of support two is vertically fixed to the piston rod of cylinder two; although this scheme can realize Automated operation, but it cannot achieve single seed on-demand of large-sized seeds, and the scope of application is limited

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