JPH07106097B2 - Mixed fertilizer applicator - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a mixed fertilizer applicator that mixes and fertilizes a plurality of fertilizers.

[Prior art]

Generally, in a mixed fertilizer applicator, the fertilizer application amount is determined by adjusting the shutter opening of the delivery unit or by adjusting the rotation speed of the delivery roller by exchanging gears.

[Problems to be Solved by the Invention]

Since the conventional mixed fertilizer applicator is configured as described above, it is not possible to accurately set the desired fertilizer application amount by adjusting the shutter opening once or replacing the gear, and in practice, the fertilizer application may be repeated several times. There was a problem that the adjustment work had to be repeated. In addition, in the configuration in which fertilizer is applied by the shutter and the feeding roller, even if the opening of the shutter and the number of rotations of the feeding roller are constant, the amount of the fertilizer stored in the tank and the weight of the fertilizer are stored. Has the disadvantage that it is not constant. Furthermore, the fertilizer stored in the tank cannot be mixed only by opening and closing the shutter and rotating the feeding roller, and different fertilizers are gradually separated in the vertical direction due to the difference in specific gravity between them, and There is a drawback that the mixing ratio tends to vary. The present invention has been made to solve the above problems, and an object of the present invention is to provide a mixed fertilizer applicator capable of performing accurate fertilizer application according to the moving speed of the machine while mixing the fertilizer in the tank. To do.

[Means for Solving the Problems]

The composition of the mixed fertilizer applicator according to claim 1 is as follows. A base plate 14 is supported at an upper position inside the tank 4 for storing the fertilizer, and a large number of fertilizer receiving portions 18 are provided on the base plate 14 and the fertilizer overflowing from the fertilizer receiving portions 18 is returned into the tank 4. The feeder a is rotatably installed. Then, a screw conveyor 5 as a conveyor for filling the fertilizer in the tank 4 into the feeder a is erected in the tank 4. In addition, the base plate 14 is formed with a falling hole 15 that is gradually widened from the fertilizer receiving start end 15 ′ side of the fertilizer receiving portion 18 of the feeder a toward the fertilizer receiving end end 15 ″,
A guide pipe 17 for connecting fertilizer directly to the field is connected to the drop hole 15. The structure of the mixed fertilizer applicator according to claim 2 is as follows. In the above, the feeder a is provided with a scraping plate 19 of a required size that covers at least the upper surface of the fertilizer receiving portion 18 corresponding to the drop hole 15.

[Action]

The operation of the mixed fertilizer applicator according to claim 1 is as follows. When the conveyor and the feeder are operated, the fertilizer in the tank is supplied to the feeder through the conveyor. The fertilizer filled in the feeder gradually falls from the fertilizer receiving start end of the drop hole to the fertilizer receiving end end, and is fertilized in the field through the guide pipe, and the fertilizer overflowing from the feeder is returned to the tank. The operation of the mixed fertilizer applicator according to claim 2 is as follows. In the above, the fertilizer supplied to the feeder is scraped off by the scraping plate so that only the capacity of the fertilizer receiving portion is accurately filled. Then, the fertilizer gradually falls with the rotation of the feeder from the fertilizer receiving start end of the drop hole to the fertilizer receiving end end, and is fertilized in the field through the guide pipe, and the fertilizer overflowing from the feeder is stored in the tank. Will be returned.

【Example】

An embodiment of the present invention will be described below with reference to the drawings.
In the figure, reference numeral 1 designates drive wheels 2 and 2 mounted on the left and right, and a total of four openers 3 on both sides of each drive wheel 2 and 2.
Machine frame with 4 erected vertically, 4 and 4 are a pair of left and right tanks installed on the machine frame 1, 5 and 5 are screw conveyors standing upright in the center of tanks 4 and 4, 6 and 6 are the screw conveyors 5 and 5. It is a cylindrical body that fits on the inner surface of the tanks 4, 4 by a horizontal rod 6 '. The fertilizer in the tanks 4, 4 is introduced from the bottom opening of the cylinders 6, 6 with the rotation of the screw conveyors 5, 5 and rises in the cylinders 6, 6 to feed the later-described feeder from the top openings thereof.
A and a are supplied and filled to the extent that they overflow. The screw conveyors 5 and 5 are not limited to this, and may be other appropriate conveyors as long as the fertilizers in the tanks 4 and 4 can be supplied to the feeders a and a. In any case, the fertilizer filled in the feeders a, a is applied to the field, and the overflowed fertilizer is returned to the tanks 4, 4. Reference numeral 7 denotes a horizontal shaft supported on the machine frame 1. The horizontal shaft 7 rotates via gears 9 and 10 by the rotation of a connecting shaft 8 linked to a power take-out device of a tractor, and its rotation is a gear 11 , 12,11,12
To the vertical shafts 13 and 13 to rotate the screw conveyors 5 and 5 in a predetermined direction (a direction in which fertilizer is raised). 14,14 are annular base plates supported at the upper positions inside the tanks 4,4 by being attached to the outer periphery of the upper ends of the cylindrical bodies 6,6, and 15,15 are the diameters of the base plates 14,14. The drop holes are formed at opposite positions on the line, and each of the drop holes 15 is gradually widened from the fertilizer receiving start end 15 'side from the feeders a, a toward the fertilizer receiving end end 15 "(Fig. 6). Reference numeral 16 denotes a modified funnel-shaped body which is connected to the lower surfaces of the respective drop holes 15 and is attached to the base plates 14 and 14, and corresponds to the lower end of the flow guide pipe 17 whose upper end is connected to the modified funnel-shaped body 16. The feeder a, a is an annular body that is horizontally rotatably installed on the base plates 14, 14 and has a large number of fertilizer receiving portions 18 defined therein. The fertilizer receiving portion 18 has openings on both upper and lower sides, as described above, rises in the cylindrical bodies 6 and receives the fertilizer supplied from the upper surface opening thereof, and the feeder Along with the horizontal rotation of a, a, the received fertilizer runs on the base plates 14 and 14 to the nearest drop hole 15 and drops into the drop hole 15. 19 and 19 correspond to the drop holes 15 and 15. 3 continuous fertilizer receiving parts 18 ... and a scraping plate of a required size that covers at least the upper surfaces of the fertilizer receiving parts 18 before and after it.
The bases 9 and 19 are attached to the outer circumferences of the upper ends of the cylinders 6 and 6, and standing edges 19 'are erected on the edges of the dropping holes 15 and 15 on the fertilizer receiving start end 15' side. The rotation of the feeders a and a is performed as follows. 20 is a horizontal shaft supported below the machine frame 1.
Rotates with the rotation of the drive wheels 2,2, and the rotation rotates the connecting shaft 27 via the gears 21,22, the vertical interlocking shaft 23, the gears 24,25 and the continuously variable transmission 26. 28 is a cross-shaped bracket whose lower end is attached and fixed to the outer peripheral convex portion of the feeder a, a, and a shaft body 29 fixed to the center thereof and the above-mentioned connecting shaft.
27 and the left and right horizontal shafts 30 and 30 and the gears 31 to 34, the left and right feeders are rotated by the rotation of the connecting shaft 27.
a and a rotate simultaneously in the direction of arrow 35 (clockwise). In this case, the shafts 29, 29 of the feeders a, a and the top end shafts 5 ', 5'of the screw conveyors 5, 5 are engaged via the required bearings, so that their respective rotations interfere with each other. Done independently. Reference numerals 36, 36 are annular guide swash plates extending from the upper edge of the cylindrical bodies 6, 6 toward the inner edge of the feeders a, a. As described above, the fertilizer raised by the screw conveyors 5,5 in the cylindrical bodies 6,6 is supplied to the annular guide swash plate 36,3.
6 From the top, all fertilizer receiving parts 18 ... At positions not covered by the scraping plates 19, 19 of the rotating feeders a, a as described above are continuously supplied and filled all at once. The received fertilizer is operated on the base plates 14 and 14 as the feeders a and a rotate, drops from the nearest drop holes 15 and 15, and is applied to the field at the back of the opners 3 and 3 through the guide pipes 17 and 17. It is something. In the above, the fertilizer that has been filled in the fertilizer receiving portion 18 ...
Before it reaches the nearest drop hole 15, it is scraped off by the standing piece 19 'of the scraping plate 19, and the fertilizer receiving part 18 ... after the scraping is covered by the scraping plate 19 itself, so Is accurately supplied only for the capacity of the fertilizer receiving part 18,
The predetermined fertilization is to be performed. In addition, as described above, each falling hole 15 has a fertilizer receiving start end 1
The width of the fertilizer is gradually widened from the 5'side toward the fertilizer receiving end 15 "(Fig. 6), so that the fertilizer is gradually and smoothly dropped from the fertilizer receiving section 18. The feeders a and a are overflowed. The fertilizer is returned to the tanks 4 and 4 as described above, is again raised by the screw conveyor 5 and is supplied to the feeders a and a. During this period, predetermined mixing is performed. By the way, the actual fertilizer application amount is determined by the number of rotations of the feeders a, a, and the number of rotations is set by controlling the continuously variable transmission 26 by driving the motor 37. To that end, the traveling speed of the fertilizer applicator of the present invention, that is, the vehicle speed is sent to the controller 39 by a signal from the encoder 38 connected to the vertical interlocking shaft 23 linked to the drive wheel 2, and the fertilizer required for the fertilizer application is sent. Data such as quantity, ridge width, fertilizer specific gravity, etc. And calculating with data, feeder a, so a is the rotational speed as a target,
The motor 37 is driven to control the continuously variable transmission 26. Whether or not the number of rotations of the feeders a, a is a target value is confirmed by feeding back an output rotation signal to the controller 39 by the encoder 40 connected to the connecting shaft 27. The control of the continuously variable transmission 26 can be controlled by a required actuator.
As described above, it is not limited to the motor 37, but may be, for example, a cylinder or the like. Also, it is obvious that the encoder 38 can be replaced by a proximity switch or the like.

【The invention's effect】

According to the invention described in claim 1, the following effects can be obtained. Since the fertilizer in the tank is raised and conveyed to the feeder by the conveyor to be filled, the fertilizer can be sufficiently mixed during this period. The fertilizer filled in each fertilizer receiving portion of the feeder is sequentially supplied to the drop holes by the rotation of the feeder, so regardless of the amount of fertilizer stored in the tank or its weight,
The amount of fertilizer corresponding to the moving speed of the mixed fertilizer applicator can be applied to the field accurately. Since each of the falling holes is gradually widened from the fertilizer receiving start end to the fertilizer end end, the fertilizer can be gradually and smoothly dropped from each fertilizer receiving portion of the feeder. According to the invention described in claim 2, the following effects can be obtained. In addition to the above, since the fertilizer filled in the fertilizer receiving portion of the feeder is scraped off by the scraping plate, each fertilizer receiving portion can be reliably filled with a certain amount of fertilizer. Then, since the fixed amount of fertilizer is sequentially supplied to the drop holes by the rotation of the feeder, it is possible to apply the fertilizer with an accurate fertilization amount.

[Brief description of drawings]

The drawings show an embodiment of the mixed fertilizer applicator of the present invention.
2 and FIG. 2 are a vertical sectional front view and a plan view with a part omitted, FIG. 3 is a side view showing a controller together, FIG. 4 is a longitudinal sectional view of an essential part, and FIG. FIG. 6 is a plan view of the base plate. a ... Feeder, 4 ... Tank, 5 ... Screw conveyor, 14 ... Base plate, 15 ... Drop hole, 15 '... Fertilizer receiving start end, 15 "... Fertilizer receiving end end, 17 ... Guide Flow tube, 18 ……
Fertilizer receiving part, 19 ... scraping plate.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Actually opened 55-123217 (JP, U) Actually opened 60-141721 (JP, U)

Claims (2)

[Claims] 1. A base plate is supported at an upper position inside a tank for storing fertilizer, and a large number of fertilizer receiving portions are provided on the base plate, and fertilizer overflowing from the fertilizer receiving portions is returned into the tank. The feeder is rotatably installed, a conveyor for filling the feeder with fertilizer in the tank is erected in the tank, and on the base plate, from the fertilizer receiving start end side from the fertilizer receiving portion of the feeder. A mixed fertilizer applicator characterized in that a drop hole is formed so as to gradually widen toward the end of fertilizer reception, and a diversion pipe for guiding fertilizer directly to a field is connected to the drop hole. 2. A base plate is supported at an upper position inside a tank for storing fertilizer, and a large number of fertilizer receiving portions are provided on the base plate, and fertilizer overflowing from the fertilizer receiving portions is returned into the tank. The feeder is rotatably installed, a conveyor for filling the feeder with fertilizer in the tank is erected in the tank, and on the base plate, from the fertilizer receiving start end side from the fertilizer receiving portion of the feeder. A drop hole is formed that gradually widens toward the end of receiving fertilizer, and a flow pipe that guides the fertilizer directly to the field is connected to the drop hole, and the feeder receives fertilizer corresponding to at least the drop hole. A mixed fertilizer applicator characterized by being provided with a scraping plate of a required size that covers the upper surface of the section.