JP2508864Y2 - Fertilizer working machine - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention is a fertilizer application machine for injecting fertilizer into the field at the same time as sowing or transplanting for sowing seeds or seedlings in the field, for example, fertilizing sowing. The present invention relates to a machine, more specifically, to a power transmission path structure thereof.

(B) Conventional technology In general, fertilizer application machines, for example, fertilizer sowing machines, include those that evenly spread fertilizer over the field, those that inject streaks in the field, and those that inject dots at the seeding part. However, recently, in terms of fertilization efficiency and environmental protection, a method of injecting dots (hereinafter referred to as point injection) has attracted attention.

In the conventional point-feeding type fertilizer sowing machine, the fertilizer application section and the sowing section change the speed separately, so it is difficult to adjust the timing of fertilizer application and sowing, and the timing of fertilizer application and sowing varies. There was a tendency to end up.

(C) Problem to be solved by the invention For this reason, the relationship between the fertilizer application position and the sowing position cannot be maintained accurately, and the fertilizer application and the sowing are performed in a misaligned positional relationship, and the fertilizer is applied to the seed as planned. It was not absorbed and fertilization efficiency was not good. For this reason, it also had an adverse effect on the germination and growth of seeds.

Therefore, in the present invention, the power input from the PTO shaft is changed by the speed change section, and the power is transmitted from the speed change section to the ground work section such as the fertilizer application section and the seeding section, so that the timing of the ground operation such as fertilization and seeding is performed. It is an object of the present invention to provide a fertilizer application machine that is configured to match and thus solves the above-mentioned problems.

(D) Means for Solving the Problems The present invention has been made in view of the above circumstances. For example, referring to FIGS. 1 and 3, a nozzle for injecting fertilizer into a field ( A fertilizer application machine (1) comprising a fertilizer application section (5) having 63, 63 ′, 65, 65 ′) and a ground work section (6) for seeding seeds or seedlings.
The distribution valve (30, 31) that distributes the fertilizer sent by 1) to each nozzle (63, 63 ', 65, 65'), and the nozzle (63, 63 ', 65,
Driving means (78) for driving 65 ') into the ground and PTO shaft (1
(1) A speed change portion (3) for changing the rotation speed, and a first shaft (22) to which the power from the speed change portion (3) is transmitted.
And the distribution valve (30, 31) from the first shaft (22)
Valve transmission means (29, 33, 32) for transmitting power to the driving means and driving means transmission means (43, 47, 50) for transmitting power from the first shaft (22) to the driving means (78). ) And a ground work section transmission means (26, 28) for transmitting power from the first shaft (22) to the ground work section (6).

(E) Action Based on the above configuration, the rotation from the PTO shaft (11) is changed in speed by the speed change unit (3), and power is transmitted from the speed change unit (3) to the first shaft (22). The distribution valve (30,3) from the first shaft (22) through the distribution valve transmission means (29,33,32).
1), the power is transmitted to the distribution valve (30, 31) and the pump (110,
111) fertilizer sent by each nozzle (63,63 ', 65,65')
Distribute to. Further, power is transmitted from the first shaft (22) to the driving means (78) via the driving means transmission means (43, 47, 50), and the driving means (78) causes the respective nozzles (63, 6).
3 ', 65,65') is driven into the ground. Further, power is transmitted from the first shaft (22) to the ground working unit (6) through the ground working unit transmission means (26, 28), and the ground working unit (6) seeds or seedlings in the field. Sow.

Further, the distribution valve (30, 31), the driving means (78), and the ground working portion (6) are configured to operate at the same timing while being transmitted with power from the first shaft (22). .

(F) Effect of the Invention As described above, according to the present invention, the distribution valve (30, 3
1), the driving means (78) and the ground work part (6) are transmitted from the first shaft (22) which has been changed in speed by the speed change part (3), so that the timing of the ground work such as fertilization and sowing can be performed. They can be matched, and the relationship between the fertilizer application position and the ground work position can be maintained accurately and accurately. Therefore, the seeds or seedlings can absorb the fertilizer as planned, and the fertilization efficiency can be significantly improved.

Further, the improvement of fertilization efficiency can use the fertilizer economically and also reduce the amount of wasted fertilizer in the ground, which can have a positive effect on the environment.

Further, allowing the seeds or seedlings to absorb the fertilizer as planned leads to favorable growth of the seeds or seedlings, which leads to an increase in yield and an improvement in quality.

The reference numerals in parentheses refer to the drawings and do not limit the configuration in any way.

(G) Embodiment An embodiment according to the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the fertilizer application machine 1 has a frame 2, the front of which is a transmission section 3 and a fertilizer section 5, and the rear of which is a ground work section 6.

Further, a towing vehicle such as a traveling vehicle body of a passenger rice transplanter is connected to the front of the fertilizer application machine 1, and the fertilizer application machine 1 is configured to be transmitted and towed from the tow vehicle. ing. The tow vehicle and the frame 2 are connected by a top link 9 and lower links 10, 10 so as to be able to move up and down. There is a PTO between the top link 9 and the lower links 10, 10.
A shaft 11 is provided, a coupler 12 is connected to the PTO shaft 11, and power is transmitted from the PTO shaft 11 to the coupler 12.

Then, as shown in FIGS. 3 and 4, the coupler 12
A gear portion 13 is connected to the gear portion 13, and a gear case 15 is fixed to the frame 2 so as to cover the gear portion 13. A sprocket 16 is connected to the gear portion 13. The sprocket 16 transmits power to a sprocket 19 fixed to a counter shaft 17 via a chain 20. The transmission unit 3 includes the sprockets 16 and 19 and a chain 20,
It is configured to change gears by replacing the sprockets 16 and 19.

Further, a sprocket 21 is fixedly mounted on the counter shaft 17, and a sprocket 23 is fixedly mounted on a first shaft 22 for transmitting power to the fertilizer application section 5. The sprocket 21 to the sprocket 23 is chained. Power is transmitted via 24. Further, a sprocket 25 is fixed to the first shaft 22, and a sprocket 27 is fixed to a second shaft 26 that transmits power to the ground working unit 6. The sprockets 25 and 27 have the same number of teeth and are connected via a chain 28. As a result, power is transmitted from the first shaft 22 to the second shaft 26, and the rotation speed is the same.

A sprocket 29 is fixedly mounted on the first shaft 22, and the sprocket 29 includes a first distribution valve 30.
Power is transmitted to the sprocket 32 fixed to the shaft of the second distribution valve 31 via the chain 33.

Further, as shown in FIG. 5, there are spline portions 22a, 22a 'at both ends of the first shaft 22. A spline hole 35a of a boss portion of the sprocket 35 is fitted in the spline portion 22a, and the sprocket 35 is connected to the first shaft 22 so as not to rotate but to move in the axial direction. Collars 36, 36, 36 are inserted through the spline portion 22a, and the collars 36, 36, 36 and sprocket 35 inserted through the spline portion 22a are attached to the first shaft 22 by bolts 37 and rings 39. It is fixed and fixed.

Bearings 40, 40 are fitted around the boss portion of the sprocket 35, and one side of the chain case 41 is arranged so as to support the bearings 40, 40. Bearings 42, 42 are supported on the upper side of the other side of the chain case 41, and a first crankshaft 45 to which a sprocket 43 is fixed is fitted on the inner circumference of the bearings 42, 42. Further, as shown in FIG. 1, bearings 46, 4 are provided below the mounting portion of the first crankshaft 45 of the chain case 41.
A second crankshaft 49, to which a sprocket 47 is fixed, is fitted on the inner circumference of the bearings 46, 46. The sprockets 43, 47 have the same number of teeth, and the chain tension is adjusted by the guide wheels 51, 52 via the chain 50, and the power is transmitted from the sprockets 35.

A case stopper 53 is fixedly provided on the lower PTO shaft 11 side of the chain case 41, and the case stopper 53 is slidably attached to a support 55 fixed to the frame 2. The support 55 has a large number of holes, and pins are inserted into the holes to support the case stopper 53.
It is fixed at 55.

Also, the case stopper 53 and the support 55 together with the combination of the chain case 41 and the collars 36, 36, 36.
The position of the chain case 41 can be changed by combining with a large number of holes.

Further, as shown in FIG. 5, the first crankshaft 45
One end of a first crank arm 57 is fixed to one end of the first crank arm 57, and one end of a first crank arm 57 'is fixed to the other end of the first crank shaft 45. 57 and 57 'are mounted on the first crankshaft 45 with an angle of 180 degrees. The first crank arm 57,5
A shaft 59 is fixed to the other end of 7 ', and bearings 60, 60 are fitted on the outer peripheral surface of the shaft 59,
A nozzle holder 61 is rotatably supported on the shaft 59 via the bearings 60, 60. Bearing 60,6
The inner race of 0 is retained and retained on the shaft 59 by the bolt 64 and the ring 62. Also, as shown in FIG. 8, nozzles 63, 63 'are provided on one side of the nozzle holder 61.
Is stuck.

One end of the second crank arm 66 is fixed to one end of the second crank shaft 49, and one end of a second crank arm 66 'is fixed to the other end of the second crank shaft 49. ing. The second crank arms 66 and 66 'are attached to the second crank shaft 49 with a 180-degree angle shift.
The mounting angle of the first crank arm 57 to the first crank shaft 45 and the mounting angle of the second crank arm 66 to the second crank shaft 49 are the same, and the first crank arm 57 is The mounting angle of ′ to the first crankshaft 45,
The attachment angles of the second crank arm 66 'to the second crank shaft 49 are also the same.

Further, as shown in FIGS. 5 and 6, the second crank arm 66 has an elongated hole 66a at the other end thereof, and one end of a shaft 67 is inserted into the elongated hole 66a. 67 is movable in the elongated hole 66a and is fixed to the second crank arm 66 by a nut 69. An adjusting bolt 70 is rotatably inserted at an end of the second crank arm 66, and the adjusting bolt 70 is provided with a second retaining ring 71 to prevent the second adjusting arm 70 from rotating.
The axial movement of the crank arm 66 is blocked. The adjusting bolt 70 extends to the peripheral wall portion of the elongated hole 66a, and is screwed with the shaft 67 in the elongated hole 66a. The screw portion 70a of the adjusting bolt 70 and the screw portion 67a of the shaft 67 are screwed together.
And are screwed together. By rotating the adjusting bolt 70, the shaft 67 can be moved in the elongated hole 66a.

The other end of the shaft 67 is inserted into the long hole 72a of the nozzle holder 72, the nozzle holder 72 is slidable within the range of the long hole 72a, and the bolt 73 and the ring 75
The shaft 67 is configured to be prevented from coming off. Further, the nozzle 6 is provided on one side of the nozzle holder 72.
3,63 'is stuck.

Therefore, the rotation of the first crank shaft 45 is transmitted to the first crank arms 57, 57 'to rotate the nozzle holders 61, 61, and the rotation of the second crank shaft 49 causes the rotation of the second crank arm. 66, 66 'is transmitted to rotate the nozzle holders 72, 72. Along with this, the nozzle holders 61, 61, 72, 72
The nozzles 63, 63 ', 65, 65' fixed to the
3,63 ', 65,65' are driven into the ground to inject fertilizer into the ground.

In addition, the spline portion 22 at the other end of the first shaft 22
Also in a ', it is configured similarly to the spline portion 22a. Therefore, the nozzles 76, 7 are provided on one side of the nozzle holder 61.
6'is fixed, and the nozzle 7 is attached to one side of the other nozzle holder 61.
7, 77 'are fixed, the nozzles 76, 76' are fixed on one side of the nozzle holder 72, and the nozzles 77, 77 'are fixed on one side of the other nozzle holder 72.

Then, the first crankshaft 45, 45, the second crankshaft 4
9,49, first crank arm 57,57,57 ', 57' and second
From the crank arms 66, 66, 66 ', 66' of the
Is configured.

Further, as shown in FIGS. 1 and 2, there are spline portions 26a, 26a 'at both ends of the second shaft 26. A spline hole 79a of a boss portion of a sprocket 79 is fitted in the spline portion 26a, and the sprocket 79 is connected to the second shaft 26 so as not to rotate but to move in the axial direction. Collars 80, 80, 80 are inserted in the spline portion 26a, and the collar 80, 80, 80 is inserted in the spline 26a.
The bolts 81 and the ring 82 prevent the 80, 80 and the sprocket 79 from coming off and are fixed to the second shaft 26.

A seeding device driving unit 83 is connected to the sprocket 79, and the sprocket 79 and the seeding device driving unit 83 are connected.
A chain case 85 is arranged so as to cover the. A case stopper 86 is fixed to the lower portion of the chain case 85, and the case stopper 86 is slidably attached to a support 87 fixed to the frame 2. Holes 89, 89, 89, 89 are formed in the support 87, and the case 90 is fixed to the support 87 by inserting a pin 90 into the hole 89.

In addition, the case stopper 86 and the support 87 together with the combination of the chain case 85 and the collars 80, 80, 80.
The position of the chain case 85 can be changed by the combination with the holes 89, 89, 89, 89.

The drive from the seeding device drive unit 83 is performed by the chain.
Sprocket 92 fixed to seeding nozzle shaft 91 via 90
, A number of seeding nozzles 93 are provided around the seeding nozzle shaft 91 to form a seeding nozzle portion 95,
A seed hopper 97 for accommodating seeds 96 is arranged adjacent to the sowing nozzle portion 95 to configure a sowing device 99. Under the seeding device 99, rollers 100 and 101 are pivotally supported.

Further, the spline portion 26a 'side of the second shaft 26 is also configured in the same manner as the spline portion 26a side.

A vacuum pump 102 is attached to the rear of the frame 2, and the vacuum pump 102 communicates with the seeding nozzle parts 95, 95 via tubes 103, 103.

Then, at both ends of the support 87, a gauge wheel 105,
105 is pivotally supported, and a sled 1 is provided at both ends of the support 55.
06 and 106 are attached, and the gauge wheels 105 and 105 and the sleds 106 and 106 are configured to support and move the fertilizer application machine 1.

Further, as shown in FIG. 12, the first pump 110 and the second pump 11 are provided in the fertilizer tanks 109, 109 containing the fertilizer 107.
1 is connected, the first pump 110 is connected to the first distribution valve 30 for the lower nozzle, and the second pump 111 is connected to the second distribution valve for the upper nozzle. 31 is connected.

Further, as shown in FIG. 2, FIG. 13 and FIG. 14, a pipe 112 is provided in front of the first distribution valve 30 and the second distribution valve 31.
Are attached to the frame 2. A pipe hole 112a is provided on one side of the center of the pipe 112, joints 113, 115, 116, 117, 119, 120, 121, 122 are fixedly installed on the upper surface of the pipe 112, and tube holes 112b are formed in the joint mounting portions of the pipe 112, respectively.

Then, as shown in FIG. 12, a tube 123 is connected to the first distribution valve 30, and the tube 123 is inserted into the pipe 112 from the pipe hole 112a and inserted through the tube hole 112b. It leads to the Jo-Hint 113.
The joint 113 communicates with the nozzle 65 via a tube 125. Further, the first distribution valve communicates with the nozzle 63 through the tube 126, the joint 117, and the tube 127, and communicates with the nozzle 77 through the tube 129, the joint 119, and the tube 130, and the tube 131, It communicates with the nozzle 76 via a joint 122 and a tube 132.

The second distribution valve 31 includes the tube 133 and the joint 1.
15, through the tube 135 to the nozzle 65 ′, through the tube 136, joint 116, tube 137 to the nozzle 63 ′, through the tube 139, joint 120, tube 140 the nozzle 77 ′, And communicates with the nozzle 76 ′ through the tube 141, the joint 121, and the tube 142.

Since the present embodiment is configured as described above, the PTO shaft 11
Is transmitted to the coupler 12, changed in speed by the speed change unit 3, and then transmitted to the counter shaft 17. Power is transmitted from the sprocket 21 of the counter shaft 17 to the sprocket 23 of the first shaft 22. Further, power is transmitted from the sprocket 25 of the first shaft 22 to the sprocket 27 of the second shaft 26 via the chain 28, and the sprockets 25, 27 have the same number of teeth and have the same number of rotations. ing. Therefore, since the distribution valves 30 and 31 and the driving means 78 to which power is transmitted from the first shaft 22 and the seeding devices 99 and 99 to which power is transmitted from the second shaft 26 operate at the same timing, The timings of fertilization and sowing can be matched, and the relationship between the fertilization position and the sowing position can be accurately kept constant as shown in FIGS. 9, 10, and 11, and fertilization efficiency can be improved.

In addition, the crankshafts 45,49 on the right side of the first shaft 22
And power is transmitted to the left and right crankshafts 45, 49, and the second shaft 26 transmits the seeding device 99 on the right side and the seeding device on the left side.
Since the power is transmitted to 99, the timing of fertilization and sowing is the same on the left and right, and there is no left-right deviation.

Further, the adjustment of the fertilizer application and seeding pitch is performed by replacing the sprockets 16 and 19 of the speed change unit 3, and at this time, the speed-changed rotation is transmitted to the first shaft 22 via the counter shaft 17. The timing of fertilization and sowing can be kept constant without being affected by pitch adjustment and gear shifting.

Also, depending on the fertilizer application pitch, an elongated hole may be formed in the ground during the point fertilization application. In such a case, the adjustment bolts 70, 70 of the second crank arm 66, 66 'may be rotated to rotate the shaft.
By changing the turning radius of 67,67, it is possible to avoid the formation of the long hole.

Further, by shifting the chain 28 engaged with the sprocket 25 of the first shaft 22 and the sprocket 27 of the second shaft 26, the positional relationship between the fertilizing position and the sowing position can be changed.

Further, as shown in FIG. 7, the sprockets 35 of the chain case 41 are attached to the spline portions 22a, 22a 'of the first shaft 22.
Is fitted so as to be movable in the axial direction, and the chain case 41
The position of the chain case 41 can be changed by the combination of the and collars 36, 36, 36. Therefore, the fertilization interval can be adjusted without shifting the timing of fertilization. Furthermore, since the position of the chain case 41 is adjusted by exchanging the positions of the collars 36, 36, 36, the position of the chain case 41 can be adjusted reliably with a simple structure.

Further, the first shaft 22 and the second shaft 26 have the same structure in plan view, and the spline portion of the second shaft 26 is
The sprocket 79 of the chain case 85 is fitted to the 26a and 26a 'so as to be movable in the axial direction, and the chain case 85 and the collar
The position of the chain case 85 can be changed by the combination with 80, 80, 80. For this reason, it is possible to adjust the interval between seeding lines without shifting the timing of seeding, and it is possible to adjust the position of the chain case 85 reliably with a simple structure.

Further, the positional relationship between the fertilization position and the sowing position can be changed by changing the space between the fertilized lines and the line between the seeding lines.

Next, a partially modified embodiment will be described with reference to FIG.

In the embodiment shown in FIG. 15, the first pump shown in FIG.
A pump 143 is provided instead of the 110 and the second pump 111, and four stations out of the six stations of the pump 143 are the first distribution valve 3
0 is connected and two stations are connected to the second distribution valve 31. As a result, a large amount of fertilizer is supplied to the first distributing valve 30, the lower stage nozzle is applied with a large amount of fertilizer, and a small amount of fertilizer is supplied to the second distributing valve 31, and the upper stage nozzle is It is designed to be fertilized a little. Therefore, in the early stage of seedling growth, the root of the seedling absorbs a small amount of fertilizer from the upper nozzle, and when the seedling grows further, the root of the seedling absorbs a large amount of fertilizer from the lower nozzle, The seedlings can absorb the required fertilizer as they grow, and the seedlings can be well grown.

In the above-described embodiment, the seeding device 99 is used as the ground working unit 6.
However, the present invention is not limited to this, and it goes without saying that a transplanting device for transplanting seedlings such as a rice transplanting device may be used.

[Brief description of drawings]

FIG. 1 is a side view showing a fertilizer application machine to which the present invention is applied, FIG. 2 is a plan view thereof, FIG. 3 is a transmission plan view showing transmission from a PTO shaft, and FIG. 4 is a transmission side view thereof. 5 is a detailed plan sectional view showing the chain case and the crank portion, FIG. 6 is a view showing the nozzle holder portion, (a) is a side view on the nozzle holder side, (b) is a side view on the nut side, and FIG. The figure shows the position where the chain case is attached to the first shaft.
Is a plan sectional view of a mounting position where three collars are provided on the right side of the chain case, (b) is a plan sectional view of a mounting position where two collars are disposed on the right side of the chain case, and (c) is a chain case A plan sectional view of a mounting position where one collar is provided on the right side, (d) is a plan sectional view of a mounting position where the collar is not provided on the right side of the chain case, and FIG. 8 is a detailed rear view showing a crank portion, FIG. 9 is a plan view showing the positional relationship between fertilization and sowing, FIG. 10 is a sectional view taken along the line AA in FIG. 9, FIG. 11 is a sectional view taken along the line BB in FIG. 9, and FIG. 12 is a fertilizer. FIG. 13 is a schematic plan view showing a distribution valve and a pipe portion, FIG. 14 is a view showing a pipe and a joint portion, and (a) is a partial front sectional view thereof,
(B) is a partial side sectional view thereof, and FIG. 15 is a fertilizer flow chart similar to FIG. 12 showing another embodiment. DESCRIPTION OF SYMBOLS 1 ... Fertilizer implement, 3 ... Speed change part, 5 ... Fertilizer part, 6 ... Ground work part, 11 ... PTO shaft, 22 ... 1st shaft, 26 ... 2nd shaft, 28 ... Chain, 29 ... Sprocket, 30 ... first distribution valve, 31 ... second distribution valve, 32 ... sprocket, 33 ... chain, 43 ... sprocket, 47 ... sprocket, 50 ... chain, 63 ... nozzle, 63 '... nozzle, 65 ... nozzle, 65' ... Nozzle, 78 ... Driving means, 110 ... First pump, 111 ... Second
Pump.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikio Dojo Machio, Naganuma Town, Yubari District, Hokkaido

Claims (1)

(57) [Scope of utility model registration request] 1. A fertilizer application machine comprising a fertilizer application section having a nozzle for injecting fertilizer into the field, and a ground work section for sowing seeds or seedlings. A distribution valve for distributing, a driving means for driving the nozzle into the ground, a speed changer for changing the rotation of the PTO shaft, a first shaft to which power from the speed changer is transmitted, and a first speed changer. Distribution valve transmission means for transmitting power from a shaft to the distribution valve, driving means transmission means for transmitting power from the first shaft to the driving means, and power from the first shaft to the ground working portion. A fertilizer application machine characterized by comprising: a transmission means for a ground work section for transmitting the.