| 摘要 |
A height controlling device of the roller brush is provided, which can produce seedling of the high quality by precisely controlling the soil height of the seedling box according to condition of the seeding of the rice seed. A height controlling device of the roller brush in the rice seeder comprises: a roller brush fixation plate(1) installed on the body frame of the sowing machine; a rotary shaft(3) of the roller brush(2) in which a brush is equipped in the slot hole of the brush fixation plate; a support bar(4a) equipped in the bearing inserted in the rotary shaft; a spring which is installed in the support hole of the roller brush fixation plate; a helical axis(6a) equipped at the upper part of the metal(6) positioned at the rotary shaft; an extension adjustment nut(8) binding the screw(7a) of the lever(7); and a height control plate(9) combined with the upper part of the brush fixation plate. |
