The air suction roller type seed metering device includes a circular seed box, which is provided with a roller. The peripheral side wall of the roller is provided with a plurality of circular seed holes. The circular side wall of the circular seed box and the peripheral side wall of the roller form an air passage. The circular inner wall of the circular seed box is provided with two baffles arranged up and down and close to the peripheral outer wall of the roller. The two baffles separate the air passage into an air inlet on the left side and an air outlet on the right side The air way is provided with the air inlet corresponding to the air inlet on the back-end plate of the circular seed box, the air outlet connected with the air outlet on the circular side wall of the circular seed box, the seed inlet on the bottom of the back-end plate of the circular seed box, the seed hopper under the baffle on the top of the circular seed box, the bottom of the seed hopper is led out from the back-end plate of the circular seed box and extends downward, and the seed hopper is provided with the air outlet There are many seed metering pipes arranged in front and back and corresponding to the multi circle seed holes one by one. In the process of seed metering, it can prevent the seeds from falling off, prevent the phenomenon of missing sowing, realize multi row seed metering and improve the efficiency of seed metering.
【技术实现步骤摘要】
气吸滚筒式排种器
本技术涉及排种器,尤其涉及一种气吸滚筒式排种器。
技术介绍
随着现代农业机械化的发展,排种器得到了广泛的应用,目前,排种器主要有勺夹式排种器、指夹式排种器和气吸式排种器,现有的气吸式排种器主要包括圆形种箱、竖直设于圆形种箱内的圆形种盘、周向均布设于圆形种盘外缘的种孔、与各种孔通过管路连接的负压风机,圆形种盘转动过程中,负压风机的负压气流经管道将圆形种箱底部的种子吸附在种孔,当吸附在种孔的种子转动到圆形种箱的排种口处时,切断与该种子对应的管道,使该种子在自身重力作用下经种孔掉落到下方耕地的垄沟。这种现有的气吸式排种器存在以下不足之处:1、吸附在种孔处的种子的自身重力与负压气流吸力方向垂直,圆形种盘转动过程中,吸附在种孔处的种子易脱落,造成漏播现象。2、圆形种盘只能单侧吸附种子,即只能单行排种,排种效率低。
技术实现思路
本技术是为了解决上述技术问题,提供一种气吸滚筒式排种器,在排种过程中,其可防止种子脱落,防止漏播现象发生,实现多行排种,提高排种效率。本技术的技术解决方案是:气吸滚筒式排种器,包括圆形种箱,其特殊之处在于:圆形种箱内设置圆形且后端敞口的滚筒,滚筒的圆周侧壁设有多圈周向均匀布置的种孔,圆形种箱的圆周侧壁与滚筒的圆周侧壁之间形成气道,在圆形种箱的圆周内壁设有二个上下布置且靠近滚筒圆周外壁的挡板,二个挡板将所述气道分隔成左侧的进气道和右侧的出气道,在圆形种箱的后端板上设有与进气道对应的进气孔,在圆形种箱的圆周侧壁设有与出气道相通的出气管,在圆形种箱的后端板底部设有进种口,所述进种口接有进种料斗,在圆形种箱内位于上方的挡板下方设有排种料 ...
【技术保护点】
1.气吸滚筒式排种器,包括圆形种箱,其特征在于:圆形种箱内设置圆形且后端敞口的滚筒,滚筒的圆周侧壁设有多圈周向均匀布置的种孔,圆形种箱的圆周侧壁与滚筒的圆周侧壁之间形成气道,在圆形种箱的圆周内壁设有二个上下布置且靠近滚筒圆周外壁的挡板,二个挡板将所述气道分隔成左侧的进气道和右侧的出气道,在圆形种箱的后端板上设有与进气道对应的进气孔,在圆形种箱的圆周侧壁设有与出气道相通的出气管,在圆形种箱的后端板底部设有进种口,所述进种口接有进种料斗,在圆形种箱内位于上方的挡板下方设有排种料斗,排种料斗底部由圆形种箱后端板引出并向下延伸,所述排种料斗内设有多个前后布置且与所述多圈种孔一一对应的排种管道。
【技术特征摘要】
1.气吸滚筒式排种器,包括圆形种箱,其特征在于:圆形种箱内设置圆形且后端敞口的滚筒,滚筒的圆周侧壁设有多圈周向均匀布置的种孔,圆形种箱的圆周侧壁与滚筒的圆周侧壁之间形成气道,在圆形种箱的圆周内壁设有二个上下布置且靠近滚筒圆周外壁的挡板,二个挡板将所述气道分隔成左侧的进气道和右侧的出气道,在圆形种箱的后端板上设有与进气道对应的进气孔,在圆形种箱的圆周侧壁设有与出气道相通的出气管,在圆形种箱的后端板底部设有进种口,所述进种口接有进种料斗,在圆形种箱内位于上方的挡板下方设有排种料斗,排种料斗底部由圆形种箱后端...
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