| 摘要 |
A load transfer device for seed and fertilizer distribution systems in seeders and fertilizers improving adaptation of seed distribution systems to the different ground irregularities, comprising a deformable parallelogram-shaped structure attached to such seeder and fertilizer machine tool-holder bar at one end and to the distribution system at the other end; a transfer rack that articulates in one of the parallelogram vertexes acting as a rocker arm connected at one end to the aforementioned parallelogram and at the other end to at least one spring through a lever arm; wherein such lever arm extends downwardly and divergently, generating a crossing angle between the parallelogram lower and upper sides, creating a torque that varies not only for the spring tension but also for the ratio of the lever arms effective lengths involved. The system is installed in seed and fertilizer distribution systems, to improve movement along the ground. |
