JPH0779579B2 - Mixed fertilizer applicator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixing and fertilizing machine for mixing a plurality of fertilizers and applying them.

[0002]

2. Description of the Related Art In general, in a mixed fertilizer applicator, the fertilizer application amount is determined by adjusting the shutter opening of the delivery portion or by adjusting the rotation speed of the delivery roller by exchanging gears.

[0003]

The conventional mixed fertilizer applicator is
Since it is configured as described above, it is not possible to accurately set the desired fertilizer application amount by adjusting the shutter opening once or changing the gear, and in practice, the adjustment work must be repeated several times. I have to. 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. Further, the fertilizer stored in the tank cannot be mixed only by opening / 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 the fertilizers and the fertilizer of the fed fertilizer is separated. There is a drawback that the mixing ratio tends to vary.

The present invention has been made in order to solve the above problems, and provides a mixed fertilizer applicator capable of performing appropriate fertilizer application according to the moving speed of the machine while mixing the fertilizer in the tank. With the goal.

[0005]

The structure of the mixed fertilizer applicator according to the present invention is as follows. A large number of fertilizer receiving portions 1 for supporting the base plate 14 at a position above the inside of the tank 4 for storing the fertilizer and for filling a fixed amount of fertilizer on the base plate 14.
8 has and upper overflowing manure from those fertilizer receiving portion 18
A feeder a to be returned into the tank 4 is rotatably mounted. Further, to form a falling hole 15 for dropping fertilizer filled in the fertilizer receiving portion 18 to the base plate 14, connects the diversion tube 17 leading to field fertilizer directly該落under hole 15. In addition, the shaft 29 attached to the feeder a,
Transmitting the driving force of the driving wheels 2 and with linking the continuously variable transmission 26 to alter its rotational speed, the tank 4
A screw conveyor 5 as a conveyor for repeatedly supplying the fertilizer therein is erected in the tank 4. The continuously variable transmission 26 is connected to a motor 37 as an actuator for changing the gear ratio, and the drive wheel 2 is provided with an encoder 38 as a speed detector for detecting the rotation speed thereof. ing. Then, the controller 39 on the basis of the calculation of the specific gravity velocity signal from the data and the encoder 38 of the fertilizer amount, ridges width and fertilizer, said feeder a controls the motor 37 such that the rotational speed of the target Is provided.

[0006]

The operation of the mixed fertilizer applicator according to the present invention is as follows. When the mixed fertilizer applicator is moved, the controller calculates the number of revolutions of the feeder based on each data of the amount of fertilizer applied, the ridge width, the specific gravity of the fertilizer and the rotational speed of the drive wheel detected by the speed detector, The actuator is controlled so that the rotation speed of the feeder becomes a target value. The gear ratio of the continuously variable transmission is changed by the actuator, so that the feeder is rotated at the target rotation speed. The fertilizer in the tank is raised and conveyed by the conveyor to fill each fertilizer receiving portion of the feeder in a fixed amount, and the fertilizer overflowing from the fertilizer receiving portion is returned to the tank and repeatedly raised and conveyed by the conveyor. It Then, a certain amount of fertilizer filled in each fertilizer receiving portion is sequentially supplied to the dropping holes of the base plate by the rotation of the feeder, and the fertilizer dropping from the dropping holes is directly applied to the field through the flow conduit.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a machine frame in which drive wheels 2 and 2 are mounted on the left and right, and a total of four opners 3 are vertically installed on both sides of each drive wheel 2 and 2, and 4 and 4 are machine frames. 1, a pair of left and right tanks mounted on the vehicle 1, 5 and 5 are screw conveyors standing upright in the center of the tanks 4 and 4, and 6 and 6 are cylindrical bodies fitted to the screw conveyors 5 and 5, respectively. ′
... are supported on the inner surfaces of the tanks 4 and 4.

The fertilizer in the tanks 4 and 4 is introduced from the bottom openings of the cylinders 6 and 6 as the screw conveyors 5 and 5 rotate, and rises in the cylinders 6 and 6 from the top openings thereof. The feeders a and a, which will be described later, are repeatedly supplied and filled with an amount of an overflow amount.

The screw conveyors 5 and 5 are not limited to this, and any other suitable conveyor may be used as long as the fertilizer in the tanks 4 and 4 can be supplied to the feeders a and a. Good. In any case, the fertilizers filled in the feeders a and a are applied to the field, and the overflowed fertilizers are returned to the tanks 4 and 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 connected to a power take-out device of a tractor, and The rotation is carried out through the gears 11, 12, 11, 12 and the vertical shafts 13, 1
3 to rotate the screw conveyors 5, 5 in a predetermined direction (direction for raising fertilizer).

Numerals 14 and 14 are annular base plates supported at the upper positions inside the tanks 4 and 4 by being attached to the outer circumferences of the upper ends of the cylinders 6 and 6, and 15 and 15 are the base plates 14 and 14. The drop holes are formed at opposite positions on each diameter line.

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. The lower end of the flow guide pipe 17 whose upper end is connected to the modified funnel-shaped body 16 corresponds to the modified funnel-shaped body. The opening of the opener 3 is opened.

The feeders a, a are annular members that are horizontally rotatably mounted on the base plates 14, 14 and are formed by partitioning a large number of fertilizer receiving portions 18.

The fertilizer receiving portion 18 has openings on both upper and lower sides, receives the fertilizer supplied from the upper opening of the cylindrical bodies 6 and 6 as described above, and receives the fertilizer from the horizontal sides of the feeders a and a. Along with the rotation, the received fertilizer is placed in the nearest fall hole 1
It runs on the base plates 14 and 14 up to 5 and is dropped into the drop hole 15.

Reference numerals 19 and 19 denote three continuous fertilizer receiving portions 18 ... Corresponding to the drop holes 15 and 15 and a scraping plate of a required size that covers at least the upper surfaces of the fertilizer receiving portions 18 before and after it. The scraping plates 19 and 19 have their base sides attached to the outer periphery of the upper end portion of the cylindrical body 6 and also have a feeder a.
An upright piece 19 'is upright at the rear end in the direction of rotation.

The rotation of the feeders a and a is performed as follows. Reference numeral 20 denotes a horizontal shaft supported below the machine frame 1. The horizontal shaft 20 rotates with the rotation of the drive wheels 2 and 2, and the rotation thereof is gears 21 and 22, a vertical interlocking shaft 23,
Shaft 2 that is connected via gears 24, 25 and continuously variable transmission 26
Rotate 7.

Reference numeral 28 is a cross-shaped bracket whose lower end is attached and fixed to the outer peripheral convex portion of the feeders a and a. The shaft body 29 attached to the center of the bracket and the connecting shaft 27 are connected to the left and right horizontal shafts 30. , 3
0 and gears 31 to 34 are connected to each other,
The rotation of the connecting shaft 27 causes the left and right feeders a and a to simultaneously rotate in the direction of arrow 35 (clockwise).

In this case, the shafts 29, 2 of the feeders a, a
Since 9 and the top end shafts 5 ′ and 5 ′ of the screw conveyors 5 and 5 are engaged with each other through a required bearing, their rotations are independently performed without interfering with each other.

Reference numerals 36 and 36 denote annular guide swash plates extending from the peripheral edges of the upper surfaces of the cylindrical bodies 6 and 6 toward the inner peripheral edges of the feeders a and a.

Reference numeral 37 is a motor as an actuator for controlling the continuously variable transmission 26, 38 is an encoder as a speed detector connected to the vertical interlocking shaft 23 linked to the drive shaft 2, and 39 is fertilizer application detected by the encoder 38. A controller that calculates the traveling speed of the machine and data such as the amount of fertilizer applied, the ridge width, and the specific gravity of fertilizer, and 40 outputs an output rotation signal to the controller 39 as to whether the rotation speed of the feeders a and a is a target value. This encoder 40 is connected to the connecting shaft 27.

The fertilizer ascended and supplied by the screw conveyors 5 and 5 in the cylindrical bodies 6 and 6 as described above is fed from above the guide swash plates 36 and 36 to the feeders a and a rotating as described above. All the fertilizer receiving parts 18 at positions not covered with the scraping plates 19, 19 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 through the guide pipes 17 and 17 on the back surface of the openers 3 and 3. It is something.

In the above, the fertilizer filled in the fertilizer receiving portion 18 ...
Before the fertilizer receiving portion 18 reaches the nearest drop hole 15, the fertilizer receiving portion 18 is scraped off by the standing piece 19 'of the scraping plate 19,
Further, since the fertilizer receiving portion 18 after the abrasion is covered with the abrasion plate 19 itself, the fertilizer receiving portion 1 is provided in the falling hole 15.
Only the capacity of 8 is accurately supplied and the predetermined fertilization is performed.

The fertilizer overflowing the feeders a, a is returned to the tanks 4, 4 as described above, again raised by the screw conveyor 5 and supplied to the feeders a, a. Mixing will occur.
By the way, the actual fertilizer application amount is determined by the number of rotations of the feeders a, a, and the setting of the number of rotations is
A motor 37 using the continuously variable transmission 26 as an actuator.
It is performed by controlling by driving.

To this 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 an encoder 38 connected to the vertical interlocking shaft 23 linked to the drive wheels 2.
It is calculated together with data such as the amount of fertilizer required for the fertilization, the ridge width, and the specific gravity of the fertilizer, and the motor 37 is driven so that the rotations of the feeders a and a reach the target number of revolutions. Is to control.

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 is not limited to the motor 37 as described above as long as it is a required actuator, and may be a cylinder or the like. Obviously, the encoder 38 could also be replaced by a speed detector such as a proximity switch.

[0027]

According to the mixed fertilizer applicator of the present invention, the following effects can be obtained. (1) Since the fertilizer overflowing from each fertilizer receiving portion of the feeder together with the fertilizer in the tank is repeatedly raised and conveyed to the feeder by the conveyor to be filled, the fertilizer can be sufficiently mixed during this period. (2) Regardless of the amount of fertilizer stored in the tank or its weight, a certain amount of fertilizer filled in each fertilizer receiving portion of the feeder is sequentially supplied to the drop hole by the rotation of the feeder. The amount of fertilizer applied corresponding to the moving speed of the mixed fertilizer applicator can be applied to the field accurately. (3) Since the rotation speed of the feeder is calculated and controlled based on each data of the amount of fertilizer applied, the furrow width, the specific gravity of fertilizer, and the speed of the drive wheels detected by the speed detector, the movement of the mixed fertilizer applicator is controlled. Fertilizer can be applied in an amount corresponding to the speed.

[Brief description of drawings]

FIG. 1 is a partially omitted longitudinal front view showing an embodiment of a mixed fertilizer applicator according to the present invention.

FIG. 2 is a partially omitted plan view of the same.

FIG. 3 is a vertical cross-sectional side view showing a control unit together.

FIG. 4 is a plan view of the same main portion.

[Explanation of symbols]

 a feeder 2 driving wheel 4 tank 5 screw conveyor 14 base plate 15 drop hole 17 flow pipe 18 fertilizer receiving section 19 scraping plate 26 continuously variable transmission 37 motor 38 encoder 39 controller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-57-194711 (JP, A)

Claims (1)

[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 for filling a fixed amount of fertilizer are provided on the base plate and overflowed from the fertilizer receiving portions. placing fertilizer rotatably feeder back into the tank
Was further forms a falling hole for dropping fertilizer filled in the fertilizer receiving portion to said base plate, connecting the diversion pipe leading to field fertilizer directly to the drop hole, and attached to the feeder
The shaft member, transmits a driving force of the driving wheels and connected with a continuously variable transmission for changing the rotational speed, the manure in the tank a conveyor for repeatedly filled in the feeder in the tank
Standingly installed, the continuously variable transmission is connected to an actuator for changing its gear ratio, and a speed detector for detecting the rotation speed of the drive wheel is arranged to adjust fertilizer application amount, ridge width, fertilizer based on the calculation of the speed signal from the data and speed detector specific gravity, mixed fertilizer machine, characterized in that said feeder is provided with a controller for controlling the actuator so that the rotational speed of the target.