The Design Of The 2BDX-1 Helm Shape Precision Pneumatic Seeder

With the achievements by the former researchers of seeder implements of hole-forming, this paper put forward a new type of precision one with compact strutting steering wheel air-suction.The seeding was designed separately and the number of seeding rows can be decided freely.To combine the profile modeling mechanism with depth adjustment mechanism makes the seeder structure simpler while seeding will not be affected.Its implements of forming hole were distributed around the wheel symmetrically,which appears as a steering-wheel.Its air-suction hill-drop lies the centre of the steering wheeling.When moving,the plate of sucking seeds turns with the steering wheel to supply seed for every implements of forming sinus accurately;And the fixed plate with the fixed steering wheel are united together.The machine working principle as follows:when the steering wheel rolling on ground,the air-suction is opened at the same time.And every hole gets a seed accurately.When the forming sinus reaches to the biggest depth,the moving petal is opened by the block and the seed falls into the seed-sinus,then the air-suction construction accomplish one sinus planting.As a new type of precision seeder,the forming sinus theory and movement theory were researched in detail in this paper,and the trial of virtual machine was analyzed.The simulation experiment showed that the size of air-suction hold and the velocity of machine affected the plant precision,which makes assure the biggest reliable forward speed.The experiment shows that the 2BDX-1 seeding is convenient in adjustment and assures a seed in one hole.It is reliable without blocking the soil and works in an smooth and accurate way to meet the need of the environment so as to realize the protective cultivation.These studies provide the theoretical and practical basis for the design and manufacture of this model.