JP2921217B2 - Fertilizer feeding device in 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 fertilizer applied to a traveling body such as a tilling machine or a rice transplanting machine.

[0002]

2. Description of the Related Art Conventionally, when a working machine mounted on a traveling vehicle body capable of shifting the traveling speed stepwise is driven to drive, the output shaft (PTO shaft) of the traveling vehicle body can be shifted to a plurality of stages. The output shaft was used to drive a fertilizer applicator provided with the working machine. However, when the running speed is changed or the work state is changed, it is naturally necessary to adjust the amount of fertilizer applied to a certain work area by adjusting the fertilizer feeding capacity of the fertilizer.
To this end, means for adjusting the fertilizer delivery volume has been provided. However, there is no means for adjusting the amount of fertilizer when the output shaft is shifted, and there is no method other than adjusting the amount of fertilizer supply by means of the means for adjusting fertilizer delivery volume.

[0003]

SUMMARY OF THE INVENTION In the prior art,
For example, when applying 40 kilograms of fertilizer per 10 ales, when the traveling speed is low, the feed index opening of the fertilizer delivery capacity is 3, at medium speed, the opening is 5, at high speed, the opening is 8, and 10 a. -When 60 kg of fertilizer is applied, the worker can easily adjust the feed index of the fertilizer feed volume to 5 at a low speed, 8 at a medium speed, and 12 at a high speed. The feed amount adjustment table as shown in Table 1 was attached to the fertilizer applicator. However, when the fertilizer applicator is installed together with another rotary work machine or the like, another work machine such as the rotary machine is used. It is necessary to change the drive rotation speed of the side. In such a case, since the traveling speed and the rotation speed of the output shaft for driving the working machine change, the above-mentioned heading table for adjusting fertilizer application cannot be used, and further, a complicated heading table must be prepared. Frequently, workers made the wrong adjustments.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a traveling vehicle body 1 having a vehicle speed means capable of changing the traveling work speed stepwise.
The output shaft 5 of the working machine side transmission, which can switch the rotation speed to a plurality of stages by a transmission mechanism as appropriate, is provided, and the traveling body 1 is equipped with a fertilizer application device 30 having a feeding device 42 capable of adjusting a fertilizer feeding amount by a feeding capacity switching mechanism. In a transmission mechanism that drives and drives the feeding device 42 from the output shaft 5 and transmits power from the output shaft 5 to the drive shaft 37 of the feeding device 42, the transmission mechanism is in inverse proportion to the speed ratio of the output shaft 5 by the transmission mechanism. A fertilizer feeding device in a fertilizer applicator provided with a speed change means capable of driving the output shaft side at the speed change ratio.

[0005]

FIG. 1 shows an embodiment of the present invention, wherein 1 is a riding type traveling vehicle body. Reference numeral 2 denotes a tilling machine, which is configured as follows and is detachably provided on the traveling vehicle body 1. That is, reference numeral 3 denotes a main transmission case of the tilling machine, which has a detachable frame 4 attached to and detached from the traveling vehicle body at the front and an input shaft 6 for receiving power from an output shaft 5 on the traveling vehicle body. On one side of the case 3, a sub-transmission case 7 extending downward is integrally provided. Output shafts 8 are provided on the left and right sides of the lower end of the auxiliary transmission case 7 so as to extend left and right. The left and right output shafts 8 are rotatably supported at their intermediate parts by brackets 10 and 10 and a bearing metal attached to the cylindrical frame 9 attached to the rear part of the main drive case 3. ing. Further, another extension shaft 11 is inserted and supported inside the cylindrical frame 9, and a metal for rotatably bearing the output shaft 8 is provided between the left and right end surfaces of the extension shaft 11 and the output shaft 8. The output shaft 8 is also supported on the outer end side.

Reference numeral 12 denotes a tilling case, a cultivating shaft 14 having an upper portion provided with a hole through which the power is transmitted through the output shaft 8 in a skewered manner, and tilling claws 13 attached to the left and right sides on the lower side.
Is provided. Reference numeral 15 denotes a tillage cover, the tillage cover
Mounted on the switch 12. Reference numeral 16 denotes an expansion / contraction adjustment mechanism, which is formed by screwing a screw shaft having an upper portion torsion-engaged with a screw cylinder rotatably provided by a handle 18 inside a cylinder 17. A pin is pivotally attached to a bracket fixed to the main transmission case 3 with a pin, and the lower end of the screw shaft is covered with the cover-1.
5 is pivotally attached to the reinforcing frame 15a via a bracket 19 with pins.

Reference numeral 20 denotes a rear hitch, which is attached to the reinforcing frame 15a of the cover 15. Reference numeral 21 denotes a gage wheel, which is mounted on a connecting horizontal frame 22 attached to the hitch 20.
A cylindrical body 24 for inserting and supporting a support shaft 23 on which a wheel is mounted is mounted so that the support shaft 23 can be set with pins so as to be vertically adjustable. Numeral 25 denotes a tilling rear cover, which has its upper end pivotally attached to a bracket 26 extending from the side of the connecting horizontal frame 22 attached to the hitch 20 to the rear end of the tilling cover 15. A rod 28 suspended vertically by a bracket 27 mounted on the side 22 is elastically held down via a spring 29.

Reference numeral 30 denotes a fertilizer application device, and a hopper 32 for storing fertilizer in an upper part of a feed case 31 in which a fertilizer feed device is installed.
A funnel 33 is provided below the case 31 for receiving the fed fertilizer, and a transfer pipe 34 is connected to the funnel 33 for flowing down the fertilizer. Then, when installing the fertilizer application, the feeding case 31
Is mounted via the mounting support member 35 from the cylindrical frame 9 or the side of the extension shaft 11 inserted through the cylindrical frame 9. The driving of the fertilizer feeding device is performed by moving the main transmission case 3 to the sub-transmission case 7 side.
A drive shaft 37 is extended from a rotating shaft 36 having a shaft transmitted from the side projecting outside the sub-transmission case 7 to the crank 3.
8, the rod 39, the ratchet 40 and the arm 41 for operating the ratchet 40 are driven.

The feeding device 42 has a first feeding roll 43 in which a plurality of feeding grooves 43a are formed at equal intervals on the outer peripheral surface of rotation and a second projection 44a having a projection 44a fitted into the groove 43a of the feeding roll. The first feeding roll 4 comprises a feeding roll 44.
The third side is driven and rotated from the drive shaft 37 side, and one of the second feeding rolls 44 side is screwed into a screw shaft 45 fixed to the case 31 side to be rotatably engaged with a dial 46. And
The dial 46 is configured to be movable and adjustable in the axial direction. Then, the second feeding roll 4 by the dial 46 is used.
In order to change the width W of the fertilizer feeding groove by moving the dial 4, the pointer 47 provided integrally with the dial is attached to the opening scale display plate 4.
8 has a structure in which the feed amount can be adjusted. The operating arm 41 of the ratchet 40 has holes (a), (b), and (c) for locking the rod 39, and the rotation of the feeding device 42 can be changed depending on the engagement position. The change of the feeding amount can be adjusted. That is,
(A) When engaging with the hole, the rotation speed of the drive shaft 37 increases,
Conversely, when engaging with the position of the hole (c), the number of rotations decreases.

The interval between the holes (a), (b), and (c) is made proportional to the speed change transmission ratio by the operation lever 49 for shifting the output shaft 5 on the traveling vehicle body 1 side. When the rotation of the output shaft 5 is made slow by operating the lever 49 to the low speed side, the lot 39 is engaged with the hole (a) to rotate the drive shaft 37 at a high speed, and the operation lever 49 is moved to the high speed side. In the case where the rotation of the output shaft 5 is operated to increase the speed to improve the tilling condition by the rotary, the lot 39 is engaged with the hole (c) and the drive shaft 37 is rotated at a low speed. Then, at this time, even if the output shaft 5 is shifted by selective engagement with the holes (a), (b), and (c) of the lot 39, the amount of fertilizer fed out of the feeding device 42 does not fluctuate without adjusting the dial. It is configured as follows.

According to the configuration of the above example, the tilling case 14 can be attached to the lower side of the main drive case 3 as well as to the left and right sides except for the lower side at predetermined intervals. The tilling position can be appropriately set in accordance with the already formed ridge spacing. The fertilizer application can be performed at the same time as the tilling operation. To adjust the rotation of the tilling shaft 14 to a high speed, a medium speed, and a low speed, the operation lever 49 is selected and operated. The speed of the output shaft 5 that drives the work implement is changed by the speed change mechanism, and the rotation speed of the tilling shaft 14 is changed. In this case, naturally, the rotation of the crank 38 is fluctuated and the feeding device 4 of the fertilizer application device 30 is moved.
The rotation of the second drive shaft 37 is shifted, and the amount of fertilizer delivered changes. This results in an unexpected situation in which the amount of fertilizer is changed for the same tilling work area. Therefore, conventionally, it is necessary to adjust the feeding amount with the dial 46. However, in this embodiment, the holes (a), (b),
(C) is preferably selected and engaged, and the complexity of dial adjustment can be eliminated.

An automatic expansion and contraction mechanism is provided at the connecting portion between the arm 41 and the lot 39 so that the distance L between the drive shaft 37 and the lot 39 can be changed, and the output shaft 5 by the operation lever 49 is provided. It is extremely convenient to provide the automatic transmission mechanism 50 so that the rotation of the drive shaft 37 is automatically kept constant during the speed change. Reference numeral 51 denotes an electric cylinder capable of adjusting the amount of protrusion of the cylinder 52. Reference numeral 53 denotes a pickup type variable resistor which is connected to a not-shown whiste bridge mechanism.

[0013]

As described above, according to the present invention, when changing the working state of the working machine by changing the output shaft 5 from the traveling vehicle body 1 side, the fertilizer feeding device of the fertilizer application device 30 side. The amount of fertilizer applied to a certain area can be easily changed by changing the rotation transmission ratio of the power without using the feed controller, and the wrong amount of fertilizer can be adjusted without changing the amount of fertilizer to be applied. There is a working effect.

[Brief description of the drawings]

FIG. 1 is a side view.

FIG. 2 is a plan view.

FIG. 3 is a sectional view of a main part.

FIG. 4 is a perspective view of a main part.

FIG. 5 is a control mechanism diagram of a main part of another example.

FIG. 6 is a diagram of a fertilization amount adjustment index table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running vehicle body 5 Output shaft 30 Fertilizer 37 Drive shaft 42 Feeding device

Claims (1)

(57) [Claims] 1. A traveling vehicle body 1 having a vehicle speed means capable of changing a traveling work speed stepwise is provided with an output shaft 5 of a power transmission on a work implement side capable of changing the rotation speed to a plurality of stages by a transmission mechanism as appropriate. 1 is equipped with a fertilizer applicator 30 having a feeding device 42 in which the fertilizer feeding amount can be adjusted by a feeding volume switching mechanism, and the feeding device 42 is driven and driven from the output shaft 5;
In a transmission mechanism for transmitting power from the output shaft 5 to the drive shaft 37 of the feeding device 42, there is provided a speed change means capable of driving the output shaft side at a speed ratio of the output shaft 5 by the speed change mechanism and a speed ratio in an inversely proportional state. Fertilizer feeding device in a fertilizer applicator.