The spoon-wheel seed metering device used on the spoon wheel type corn precision seeder is a kind of metering device with better seed quality, and is mainly used for sowing of crops such as corn, soybean and cotton. Compared with the air-suction seed metering device, the scoop-wheel seed metering device may be slightly inferior in accuracy, but it can basically meet the demand, and the structure is relatively reliable and the price is relatively low, so it is widely loved by farmers' friends. As an example, the 2BYSF-N corn precision seeder produced by Hebei Agricultural Harbin Machinery Group Co., Ltd., which is widely sold, introduces the practical technology of the scoop wheel corn planter.
First, install
Seed opener must be staggered more than 5 cm in the left and right direction of the fertilizing opener to avoid fertilizer burning.
When installing the sowing assemblies, they should try to keep the corresponding shaft holes concentric. The U-threads should be screwed alternately at both ends, and the U-filament should be screwed to observe the gap between the assembly and the support beam, and the beam surface must be fully engaged.
Second, line spacing adjustment
Loosen the U-shaped wires of each assembly, loosen the U-shaped wire of the transmission pull-plate, loosen the flat clamps on the transmission shaft of the non-shifting assembly (4 in total), and loosen the top wire of the sprocket (except for the three-line machine) Axial movement of the assembly and fertilizer sprocket, chain (except three-line machine), to achieve the target spacing, tighten the loose screws in the previous steps; adjust the position of fertilization opener.
Third, the spacing adjustment
Adjusting the transmission ratio of the transmission can change the spacing of the rows of the entire machine. When operating, pull down the lever, place the indicator lever in the neutral slot, and then use the left and right levers to observe the position change of the indicator lever. When the indicator rod reaches the entrance of the selected gear slot, the handle bar is released, the indicator bar automatically enters the gear slot, and the adjustment of the spacing between the stalks is completed.
Fourth, depth adjustment
1. To adjust the depth of fertilization, loosen the fertiliser opener U-shaped wire, and move the plow column up and down to adjust the depth, move it shallowly, and move it deeper. The tip of the fertiliser opener should be parallel to the frame. It is recommended that the fertilizing opener be 5 cm deeper than the sowing opener to achieve deep chemical fertilizer application.
2. When adjusting the seeding depth, turn the hand wheel clockwise, the ground wheel is lowered, the opener rises, and the seeding depth decreases. On the contrary, the sowing depth increased.
If the depth requirements of each row are inconsistent, you can loosen the two top wires on the forward column of the adjusted assembly and move the seed opener up and down to achieve the depth adjustment of the row.
V. Adjustment of seeding rate
The product metering device is a precision seeder. Under normal circumstances, the hole rate does not exceed 5%, and the replay rate does not exceed 10%. If special seeds are encountered, adjust the spacer positioning ears on the metering device. When the spacer positioning ear moves upwards, the reproduction rate decreases, but the hole rate increases. When the spacer moves downward, the hole rate decreases, but the replay rate increases. The user must adjust the test repeatedly until he is satisfied.
Six, fertilizer adjustment
Evacuate the chemical fertilizer in the row fertilizer box, loosen the disc nut at the shaft end, and rotate the hand wheel to change the axial working length of the outer groove wheel in the row fertilizer box to achieve the adjustment of the amount of fertilizer, and then tighten the nut after completion. By rotating the hand wheel counterclockwise, the working length of the sheave is shortened and the amount of fertilizer applied is reduced. When the hand wheel is rotated clockwise, the working length of the sheave is increased and the amount of fertilizer is increased.
Seven, the elastic adjustment of the chain
The main chain is adjusted with the tensioning wheel; the four mounting bolts of the seeding device can be loosened when the chain is adjusted, and the seed metering device is moved up and down to change the center distance of the two sprockets to achieve the purpose of adjustment; the fertilizer chain can be moved forward and backward by fertilizing Position of the bucket, change the center distance to achieve the purpose of adjustment; when the transmission input chain is adjusted, the transmission pull-plate can be loosened, and the flange of the gearbox flange can be fixed and the transmission can be moved to adjust the elasticity of the chain.
Eight, operation method
1. Loading and loading fertilizer. First, we must sieve out fine particles such as crushed foam and sand in the seeds, pick out large pieces of debris, and sprinkle seeds that must be picked up before reloading. The coated seeds should be air-dried, soaked seeds or packaged seeds should be controlled. Moisture. Before planting, it is necessary to check whether the seed cover is properly covered, and whether the two ends of the seeding tube are connected properly. If problems are found, the seedlings must be removed before being installed. After the seed is added to the seed box, cover the seed box immediately and do not open it during the operation. During operation, the seed position in the seeding tube should be observed. When the seed plane is close to the bottom of the tube, it should be added in time, otherwise it is easy to miss the broadcast. The agglomerates of chemical fertilizers are crushed and the debris is removed. Fertilizers that are too wet and have poor fluidity should be dried in advance. Check the contents of the bucket before loading fertilizer and check whether the bucket bottom plate is open after loading.
2. Clear fertilizer and clear seed. When clearing the fertilizer, open the fertilizer cover at the bottom of the fertilizer hopper, and pass most of the chemical fertilizer out of the mouth. The remaining fertilizer can be removed from the clearing mouth and the plate is opened to open the clearing mouth. If necessary, the iron wire at the bottom of the drainage box can be removed and opened. The fat tongue can be drained to make up the fertilizer. When clearing, the dirt stuck on the opener should be removed first, then the bag should be taken under the opener, the seed cover should be removed and the seed flowed out. The seed that cannot flow out can be set out with fingers or can be handed Turn the ground wheel in one hand until the seeds are cleared.
3. The remaining line stops playing. When there are residual lines in the work plots, for example, there are 8 lines in total, and 3 lines of seeders are used to complete 6 lines twice and 2 lines are left. If there are not enough jobs once, there will be more than one line. One or more sowing assemblies were stopped. This product is equipped with a clutch on the drive shaft of the seed, which can be easily separated or combined with the drive system.
Nine, homework
When the implement is driving at a high speed on the road, the tractor lifter must be locked and it is forbidden to pull the implement. When the implement lands, it should be slow and steady to prevent the opener from clogging.
We must have someone to follow the machine to monitor whether the metering device and row of fertilizer wheel are rotating normally, whether there is any straw plug in front, whether the broadcast depth is appropriate, and whether there is a phenomenon of deseeding. Problems must be eliminated in a timely manner.
Before each shift or land exchange, the work should be overhauled, and the work should be stopped and overhauled periodically. When overhauling, the rotating wheel of the implement should be raised to observe whether the seeding is normal; whether the fertilizing and sowing of the opener are blocked; and if the outer peripheral surface of the drive is too much clay, it should be cleaned up.
In addition, the spoon-wheel corn precision seeder is similar to the air-suction corn precision seeder in terms of maintenance and storage.
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