Double pendulum fixed point fertilizer placement drill
The utility model is a kind of farm machinery, promptly a kind of double pendulum fixed point fertilizer placement drill.
At present, the fertilizer dressing operation of crops such as corn, how by manually carrying out, the amount of labour is big, and efficient is low, and in order to address this problem, the someone has developed fertilizer placement drill, promptly in intertillage, chemical fertilizer is sprinkling upon near the plant, uses soil topped then.The problem that this mode exists is that facility are all wanted broadcast application, thereby cause the waste of chemical fertilizer no matter there is seedling not have seedling.
The purpose of this utility model is to develop a kind of can the chance seedling and apply fertilizer according to the fertile down action of the density adjustment of crop plant, and no seedling is the facility that topdress of fertilizer not.
Technical scheme: the characteristics of this fertilizer placement drill are: a fertile bucket is arranged, fertile bucket bottom has two and leaks fertile hole, be connected to a fertilizer flowing tube below respectively, the end of fertilizer flowing tube is connected to a bearing, the mesopore of bearing inner sleeve docks with fertilizer flowing tube, its overcoat is connected one and puts pin, on the front opening of pendulum pin, a switchboard is arranged, expansion link is housed on the switchboard, be with coil tension spring on the expansion link, the expansion link rear end can contact with a touching lever, when touching lever runs into obstacle and swings, can promote expansion link moves ahead, open switchboard, when nuzzling up obstacle, expansion link retreats under the effect of spring, switchboard is closed, the touching lever return.A pull bar is stretched out in pendulum pin rear end, and back end of tie rod is linked to each other with fertilizer flowing tube by extension spring, and the pendulum pin is meeting with obstruction and can swing, when nuzzling up obstruction under the extension spring effect return.
The fertilizer placement drill that adopts such scheme to make can be contained on the intertillage plough, between advancing.Whenever run into a strain crop, all can broadcast application once, otherwise can not fertilizer, can avoid the waste of chemical fertilizer like this.Because touching lever and pendulum pin all can be swung, thereby can prevent the crop of damaging, and guarantee operation quality.
Introduce an embodiment below in conjunction with accompanying drawing:
Fig. 1 is the front view of present embodiment, and Fig. 2 is its left view, and Fig. 3 is its vertical view, and Fig. 4 is its partial enlarged drawing.
Among the figure as seen: fertile bucket 1, leak fertile hole 2, fertilizer flowing tube 3, bearing 4, gib 5, pendulum pin 6, coil tension spring 7, expansion link 8, switchboard 9, touching lever 10, pull bar 11, extension spring 12.
As seen from the figure, this fertilizer placement drill has a fertile bucket 1, has two fertilizer flowing tubes 3 to be splayed below fertile bucket 1 two fertilizer-supplying ports 2 of having gone to the bottom, fertile bucket and stretches to both sides, the fertilizer flowing tube end connects a bearing 4, interior cover communicates with defertilizing tube, and overcoat is connected mutually with pendulum pin 6, and one of pendulum pin 6 has opening, a switchboard 9 is arranged on the opening, switchboard 9 is handled by an expansion link 8, and expansion link moves on the pendulum pin, is with coil tension spring 7 above.On the pendulum pin, also have a touching lever 10, after touching lever 10 is collided with crop, i.e. rotation forward, and promote expansion link and protract, open switchboard 9, chemical fertilizer flows out, when the touching lever crop that nuzzles up, can be under the effect of coil tension spring, with expansion link while return, switchboard is closed, and stream fertilizer stops.The pendulum pin is connected in the fertilizer flowing tube lower end by bearing 4, and chemical fertilizer flows to the pendulum pin by bearing inner sleeve, when the pendulum pin is run into crop, can swing and the crop that nuzzles up, extension spring 12 pulling pull bars 11 make pendulum pin return then, because touching lever 10 and pendulum pin 6 can be swung flexibly, thereby the crop of can not damaging.Because touching lever is very short, quick action can adapt to higher pace.During use, this fertilizer placement drill is installed on the beam top by gib 5, can carry out work.