The utility model provides a double row staggered spoon convex step precision seed metering device, which consists of a shell, a seed feeding tube, a seed metering wheel, a seed sampler, a inoculation cup, a seed baffle, a seed metering shaft and a bearing. The device is characterized in that a seed metering outlet is arranged at the lower end of the shell, a seed feeding tube is arranged on the shell and connected with it, a seed metering wheel is connected with the shell through the seed metering shaft, and a seed baffle plate is arranged on the seed metering cover, and a seed sampler The inoculation cup is on the inner wall of the metering wheel and the double rows are evenly and alternately distributed. The utility model intends to increase the number of seed collectors and reduce the rotation speed of the seed metering shaft under the condition of high-speed operation of the seeder by means of the dislocation and uniform alternate distribution of the two rows of the seed collector and the inoculation cup, and to realize the high-speed and precise seeding by designing the guide slot and the convex spoon convex step, so as to make the seeds orderly queued and quantitatively separated.
【技术实现步骤摘要】
一种双排错位凸勺凸阶精量排种器
本技术涉及一种播种机排种器,尤其涉及一种双排错位凸勺凸阶精量排种器。
技术介绍
排种器是精量播种机的核心部件之一。目前,单粒精量排种器主要有气吸式和机械式两类。气吸式精量排种器的排种精度较高、通用性好,但对气室密封要求高,结构较复杂,且易磨损;窝眼轮和水平圆盘等机械式排种器主要依靠重力或推种器进行排种,虽结构简单、维护方便,但对高速充种适应性差且工作过程中排种精度控制比较困难。排种轴转速以及取种、清种过程是影响排种器排种性能的关键。本技术拟通过取种器和接种杯双排错位均匀交替分布,使播种机高速作业情况下,取种器数量增加,排种轴转速降低;通过设计引导槽、凸勺凸阶,使种子有序排队、定量分离,实现取种、清种和单粒排种,从而实现高速精量播种。
技术实现思路
为达到上述目的,本技术提供了一种双排错位凸勺凸阶精量排种器。本技术提供如下技术方案:一种双排错位凸勺凸阶精量排种器,是由壳体、入种管、排种轮、取种器、接种杯、挡种板、排种轴和轴承组成。排种轮设置在壳体内部,取种器、接种杯设置在排种轮内壁上且双排错位均匀交替分布,入种管设置在所述壳体上并与之贯通。所述排种轮为半封闭腔体,与所述壳体通过所述排种轴连接,且与所述壳体共用排种器盖。所述挡种板为凹圆弧状,其圆弧角度为60°~120°。所述取种器具有凸勺、凸阶、底板和两侧板,所述凸勺直径为5~10cm,所述凸阶与凸勺末端相连并指向底板,所述两侧板之间距离为5~10cm,所述两侧板与所述底板构成引导槽,所述凸勺、凸阶、底板和两侧板构成充种腔,所述引导槽使2~3粒种子有序排队,所述充种腔只允许一粒种子进入 ...
【技术保护点】
1.一种双排错位凸勺凸阶精量排种器,由壳体、入种管、排种轮、取种器、接种杯、挡种板、排种轴和轴承组成,其特征在于:壳体下端设有排种口,入种管设于壳体上并与之贯通,排种轮与壳体通过排种轴连接,挡种板设置在排种器盖上,取种器、接种杯在排种轮内壁上且双排错位均匀交替分布。
【技术特征摘要】
1.一种双排错位凸勺凸阶精量排种器,由壳体、入种管、排种轮、取种器、接种杯、挡种板、排种轴和轴承组成,其特征在于:壳体下端设有排种口,入种管设于壳体上并与之贯通,排种轮与壳体通过排种轴连接,挡种板设置在排种器盖上,取种器、接种杯在排种轮内壁上且双排错位均匀交替分布。2.根据权利要求1所述的双排错位凸勺凸阶精量排种器,其特征在于,所述排种轮为半封闭腔体,与壳体通过排种轴连接,由...
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