Centrifugal seed/fertilizer dual-purpose broadcaster

Abstract

The invention relates to a centrifugal disc type broadcaster, and belongs to a fertilizing and seeding device in the technical field of agriculture. A centrifugal type seed/fertilizer dual-purpose broadcaster comprises a material box, a machine frame, an electric control system, a feeding device, a blanking adjusting mechanism and a scattering device, the feeding device is installed on the lower portion of the material box and comprises a feeding sharing assembly, a fertilizer supplying assembly and a seed supplying assembly, the feeding sharing assembly is communicated with the scattering device through the blanking adjusting mechanism, and the fertilizer supplying assembly is communicated with the scattering device through the blanking adjusting mechanism. The fertilizer supply assembly and the seed supply assembly can be respectively mounted in the material supply sharing assembly, and the seeding rate of fertilizer supply or seed supply is controlled under the action of the electric control system; the scattering device is installed at the bottom of the machine frame and used for scattering seeds or fertilizer to the ground. The device has the following advantages: 1, the spreading amount can be accurately controlled in a larger range, the feeding device is convenient to replace, and the spreading amount can be controlled by remotely controlling the rotating speed of the feeding motor in real time through the control panel; 2, the adjustable double-point blanking mode can make the broadcast sowing effect more uniform, and the utilization rate of the broadcast sowing machine is greatly improved.

Description

technical field [0001] The invention relates to a centrifugal disc spreader, which belongs to the fertilization and seeding device in the field of agricultural technology. Background technique [0002] Due to its simple structure and high operating efficiency, the centrifugal disc spreader is widely used in fertilizer and seed sowing operations, but it is difficult to accurately control the seeding rate of the existing centrifugal disc spreader. The average spreading amount per mu is 20 kg to 40 kg, while the average seeding amount per mu is 2 kg to 6 kg. Due to the large difference in the amount of fertilizer and seed, it is difficult for existing spreaders to take into account the precise discharge of fertilizer and seeds. Secondly, according to the sowing characteristics of the centrifugal disc spreader, when the material to be spread is different and the amount of seeding is different, the best blanking position of the material on the disc is different, but most of the e...

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Problems solved by technology

[0002] Due to its simple structure and high operating efficiency, the centrifugal disc spreader is widely used in fertilizer and seed sowing operations, but it is difficult to accurately control the seeding rate of the existing centrifugal disc spreader. The average amount of spreading per mu is 20 kg to 40 kg, while the average amount of seed spreading per mu is between 2 kg and 6 kg. Due to the large difference in the amount of fertilizer and seed, it is difficult for existing spreaders to take into account the precise discharge of fertilizer and seeds

Secondly, according to the sowing characteristics of the centrifugal disc spreader, when the material to be spread is different and the amount of seeding is different, the best blanking position of the material on the disc is different, but most of the existing spreaders have only one blanking port and it is fixed. It is difficult to achieve accurate sowing for different materials and different sowing rates, especially when the sowing rate is small, the sowing uniformity is extremely poor, and the coefficient of variation is large, so that the existing spreaders can only be used for low uniformity requirements. Occasions, which severely limit the utilization of the spreader

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