Modified Design of a Precision Planter For a Robotic Assistant Farmer

1-2-4- Packing system 
Packing is the process of putting soil back into the furrow after the seed is placed in the 
soil. With proper packing the seed is in complete contact with the soil to grow and cannot be 
blown away by the wind, etc. Packing can be done using a press-wheel (packer-wheel). 
1-2-5- Shock absorber system 
In a farm, there are always rocks in the soil that causes heavy loads (shock loads to be 
applied to the soil engagement tool). To avoid this shock load, a shock absorbing system should 
be designed for the seeding mechanism. This can be spring system, pneumatic or hydraulic shock 

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absorber. See Figure 1-2 for a pneumatic shock absorber and Figure 1-5 for a spring shock 
absorber. This system gives the ability to the seeding mechanism to go up and down as it goes 
through the field.
Figure1- 5- A complete planter and its parts: 1) Disc Coulter, 2) Gauge wheel, 3) Soil 
covering disc, 4) Press wheel, 5) Seed hopper, 6) Shock absorber spring, 7) Parallelogram 
linkage. 
1-2-6- Lift and transportation linkage and mechanism
Planters consist of a series of row planters which can go up to 30 rows. A system of 
linkage is needed to attach all these row planters together and then attach to the tractor using a 
hitch. When performing precision seeding, as the planter reaches the border of the farm, it has to 
lift up the planters off the ground to make a turn. To do so, they utilize a hydraulic system. Also 
to transport the planters on the roads, they need a mechanism to fold the planter to make it as 
narrow as possible fit in the road, see figure 1-6. Hydraulic systems are used to do all the lifting 
and folding of the planters.

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Figure1- 6- A Folded planter, ready for transport 
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