JP2001120024A - Side fertilizer - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To secure a work space behind a driver's seat by reducing the volume of a blower casing disposed below a side fertilizer. SOLUTION: At least an inlet 154 and an outlet 16
1, a blower casing 51 containing a fan 152 and a fan drive shaft 156 is provided. The fan drive shaft 156 contained in the blower casing 51 is connected to each other by a connection shaft 157, and a cover 160 covering the connection shaft 157 is provided. Of the blower casing 51 is smaller than the outer diameter of the blower casing 51, and the overall width of the entire blower casing 51 and the motor 50 provided at one end thereof is adjusted to the side fertilizer 36.
It is configured to be equal to or smaller than the entire width.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique of a side fertilizer for a rice transplanter.

[0002]

2. Description of the Related Art Conventionally, a hopper, a blower, and a feeding device are arranged at the rear of a seat of a traveling body of a rice transplanter, and several hoses are connected to the feeding device. Side fertilizer applied to the side of the planting section is arranged is known, and each feeding case of the side fertilizer,
The blower casing is connected to and communicated with one blower casing, and a motor serving as a fan driving means is attached to one end of the blower casing. The output shaft of the motor extends on the axis of the blower casing, and corresponds to each feed case of the output shaft. Where to
2. Description of the Related Art A side-strip fertilizer with a fan mounted coaxially is known. For example, Japanese Patent Application Laid-Open No. 7-3274 by the same applicant
34 technologies.

[0003]

In the above technique,
Since a fan is provided at a position corresponding to each feeding case, the outer diameter of the blower casing that houses the fan is necessarily larger than the fan diameter. Since the outer diameter width of the blower casing was maintained over the entire width in the left-right direction, the space below the upper fertilizer was narrow. For this reason, the working space for the operator behind the driver's seat is limited, and the blower casing has been an obstacle, making it difficult to adjust the lower part of the fertilizer applicator.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. In Claim 1, it is a side-strip fertilizer applied to a rice transplanter, and a feeding device is arranged below a fertilizer hopper, and at least a suction port, a discharge port, a fan, and a fan are provided in a feeding part of each feeding device. A blower casing that houses the drive shaft is provided, and the fan drive shafts that are housed in the blower casing are connected to each other by a connection shaft, and the outer diameter of the outer member that covers the connection shaft is the outer diameter of the blower casing. It is configured smaller.

According to a second aspect of the present invention, the entire width of one or a plurality of the blower casings and the total width of the motors disposed at one end thereof is equal to the entire width of the one or a plurality of the side fertilizers. Or it is configured smaller.

[0006]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a side view of a riding rice transplanter, FIG. 2 is a plan view of the same, FIG. 3 is a plan cross-sectional view of a lateral fertilizer, FIG. 4 is a front view thereof, and FIG. FIG. 6 is a side cross-sectional view showing a state of supporting the side fertilizer, and FIG. 7 is a partial front cross-sectional view showing a lower part of the side fertilizer and a motor.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a traveling vehicle on which an operator rides. The engine 2 is mounted above a front portion of a vehicle body frame 3, and a traveling front wheel 6 is provided in front of a transmission case 4 via a front axle case. And a rear axle case is connected to the rear of the transmission case 4 to support the rear wheel 8 for traveling. The engine 2 and the like are covered with a hood 9, and a driver's seat 13 is mounted on an upper part of a vehicle body cover 12 on which an operator rides via a step 11, and a steering handle 14 is provided in front of the driver's seat 13 at a rear portion of the hood 9. Is provided.

In the figure, reference numeral 15 denotes a seedling mounting table 16 for 6-row planting.
And a plurality of planting claws 17 and the like,
A rotary, in which a front-tilt type seedling table 16 made of synthetic resin having a front height and a low height is supported on a planting case 20 via a lower rail 18 and a guide rail 19 so as to be reciprocally slidable left and right, and is rotated at a constant speed in one direction. The case 21 is supported by the planting case 20, and a pair of claw cases 22 are arranged at symmetrical positions about the rotation axis of the rotary case 21.・ Attach 17. Further, a support frame 24 is provided on the front side of the planting case 20 via a rolling fulcrum shaft (not shown),
The support frame 24 is connected to the rear side of the traveling vehicle 1 via a link mechanism 27 including the first link 5 and the lower link 26, and a lifting cylinder (not shown) for raising and lowering the planting section 15 via the link mechanism 27 is attached to the lower link 26. At the same time, the front and rear wheels 6 and 8 are steered and moved, and at the same time, the seedlings for one plant are taken out from the seedling table 16 which is reciprocally slid left and right by the planting claws 17 so that the seedlings can be continuously planted. Configure to do so.

In the drawing, reference numeral 29 denotes a traveling speed change lever, 30 denotes an auxiliary speed change lever for planting elevating and working traveling speed change, 35 denotes a float for leveling, and 36 denotes a single-row lateral fertilizer. The fertilizer applicator 36 as a whole constitutes a fertilizer applicator 37.

[0010] The lateral fertilizer will now be described. As shown in FIGS. 1 and 6, a support frame 40 erected on the vehicle body frame 3 and a pair of left and right side stays 54 with a lower end pivotally attached to the rear end of the vehicle body frame 3. , Supporting the supporting machine frame 53 on the upper part of the supporting frame,
Six side-row fertilizers 36 are placed on the supporting machine frame 53 for six rows. In addition, a side plate 140 is erected on the supporting machine frame 53 at every third side of the side fertilizer applicator 36, and the first, second, and third frames 55, 56, and 57 are arranged in order from below to above.
Are laterally provided to support and fix the side plates 140.

As shown in FIGS. 3 to 5, one side of the side fertilizer applicator 36 includes a fertilizer hopper 46, a feeding case 47 for supplying a constant amount of fertilizer A, and a side fertilizer nozzle of the leveling float 35. Each of the side-row fertilizers 36 is provided with a flexible delivery pipe 49 for delivering the fertilizer A to 48 and a cylindrical blower casing 51. An electric motor 50 is mounted on the left end of the blower casing 51 as means for driving a fan 152 described later.

At the inlet 69 on the upper side of the feeding case 47, the lower outlet of the fertilizer hopper 46 is fitted, and an outlet 70 is formed below the discharge portion 47a on the front of the feeding case 47.
The outlet 70 is closed by a cap 71 slidable in the front-rear direction. Further, a chute 72 is extended forward and downward from the outlet 70, and the cap 71 is slid forward to discharge the residual fertilizer in the fertilizer hopper 46.

The feeding case 47 has a lower discharge portion 76.
At the rear, it is connected to the flexible delivery pipe 49 via a joint pipe 77 made of a soft synthetic resin. Similarly, also at the front of the discharge portion 76, the discharge port 161 at the rear of the blower casing 51 and the front portion of the discharge portion 76 are connected to each other through a connection pipe 162. In addition, a venturi section 79 for increasing the airflow from a fan 152 to be described later to generate a negative pressure is formed inside the discharge section 76, and the outlet 78 of the fertilizer A faces the venturi section 79. .

In the middle of the feeding case 47, three disc-shaped upper feeding rolls 60, a middle feeding roll 61, and a lower feeding roll 62 are arranged, and a feeding hole is opened on each of the rolls. The feeding roll 60 and the lower feeding roll 62 are fixed to the feeding case 47, and the middle feeding roll 61 is connected to a feeding shaft 87.
Is fixed at the bottom. Then, by rotating the feed shaft 87, the feed hole 8 of the upper feed roll 60 is moved.
From 2 the fertilizer A enters the feeding outlet 83 of the middle feeding roll 61,
When the middle feeding roll 61 is rotated and coincides with the feeding hole 84 of the lower feeding roll 62, the fertilizer A falls into the flexible delivery pipe 49 and is fed by a predetermined amount.

The power transmission to the delivery shaft 87 is performed as follows. A chain is wound around a chain sprocket fixed to an intermediate portion of the PTO shaft projecting rearward from the rear end of the transmission case 4 and a chain sprocket 101 in a bearing case 100 fixed to a support frame 40 erected on the vehicle body frame 3. The power is turned to transmit power, and the power is further transmitted to the transmission shaft 102 at a laterally outer position in the bearing case 100 by chain transmission. Bevel gear 102 at the end of the transmission shaft 102
After the power is transmitted to the lower vertical transmission shaft 105 via a driven bevel gear 105a meshing with a, the power is transmitted to the upper vertical transmission shaft 103 via a ring cone type continuously variable transmission mechanism 90 provided at the upper end thereof. As shown in FIG. 5, the ring cone type continuously variable transmission 90 is rotatable about an input disk 92 that rotates integrally with the input-side lower vertical transmission shaft 105 and an output-side upper vertical transmission shaft 91. An output disk 93 provided and a plurality of planetary cones 94 rotatably disposed between the two disks 92, 93.
(The group of planetary cones 94 revolves integrally with the upper vertical transmission shaft 103), and a non-rotating transmission ring 95 and the like that slidably contact the conical surface of the planetary cone 94 so as to be movable.
These are accommodated in a transmission case 96. An adjustment screw 98 having an adjustment knob 97 for the number of rotations (and thus the amount of fertilizer fed out per unit time) is arranged on a guide portion at the rear end of the transmission case 96, and the rear end of the shifter 99 is screwed into the adjustment screw 98. The shifter 99 is engaged and connected to the transmission ring 95. The shifter 99 is moved up and down in FIG. 5 according to the forward rotation and reverse rotation of the adjusting screw 98, so that the planetary cone against which the transmission ring 95 presses and abuts. The speed is changed by changing the position of the conical surface 94. The bevel gear 103b fixed to the upper end of the upper vertical transmission shaft 103 is, as shown in FIGS.
4a. The input shaft 124 is connected to the side fertilizer 3
6 and 36 are extended in the left-right direction.
As shown in FIG. 5, inside the side-strip fertilizer applicator 36, a bevel gear 124b fixed on the input shaft 124 and a bevel gear 87a are engaged with each other, and the feed shaft 87 is connected to the bevel gear at the rear end. 87a.

With the above configuration, the power from the PTO shaft is transmitted to the feed shaft 87, and the middle feed roll 61 rotates to feed the fertilizer A. Further, by operating the adjustment knob 97, the rotation speed of the payout shaft 87 can be changed to change the amount of the manure A to be fed.

Now, the blower casing of the present invention will be described. As shown in FIGS. 5 and 7, the blower casing 51 is screwed to the first frame 55 below the blower casing 51 via a case bracket 51a, and is connected to the second frame above via a case bracket 51b. 56, the blower casing 51 is supported and fixed.

As shown in FIGS. 3, 4, and 7, the output shaft 151 of the electric motor 50 attached to one end of the blower casing 51 is fixed to the fan drive shaft 156, and is disposed coaxially in the left-right direction. Fan shafts 156 and 156
Are connected by connecting shafts 157. The blower casing 51 has bearings 159 and 159 at both left and right ends of the outer shell.
The fan drive shaft 156 is rotatably supported by 159. The blower casing 51 is coaxially mounted with the fan 152 at a position corresponding to the joining pipe 77 of the feed case 47 of the fan drive shaft 156, and the blower casing 51 is connected to the outside air through a suction port 154. A communication intake passage 155 is provided.

The fan drive shaft 156 and the connection shaft 157 projecting from the left and right sides of the blower casing 51 are provided with a cylindrical cover 160 as an outer shell. The inner diameter of the cover 160 is equal to the outer diameter of the bearing 159, and is smaller than the outer diameter of the blower casing 51 that houses the fan 152.

As shown in FIGS. 3 and 4, the electric motor 5
The overall width of the blower casing 51 including 0 is configured to be smaller in the left-right direction than the overall width of the side-strip fertilizer 36. Further, as shown in FIG. 5, the overall width of the blower casing 51 and the electric motor 50 is in the front-rear direction,
Is configured to be smaller than the width. That is, the electric motor 50 is disposed in a space below the outer end of the fertilizer hopper 46 on one side, and is disposed between the side end of the fertilizer hopper 46 and the side end of the chute 72 in rear view. It does not protrude beyond the body width, and the folding mechanism is omitted.

[0021]

According to the first aspect of the present invention, there is provided a side-strip fertilizer applied to a rice transplanter, wherein a feeding device is disposed below a fertilizer hopper, and at least a suction port, A discharge port, a fan, a blower casing containing a fan drive shaft are provided, and the fan drive shafts contained in the blower casing are connected to each other by a connection shaft, and an outer diameter of an outer member covering the connection shaft is: Since the blower casing is configured to be smaller than the outer diameter, the present invention has the following effects. Since the fan section of the blower is configured in one-row units, and the blower casing that houses the fan is also independent in one-row units, it is possible to cope with an increase in the number of fertilizers by increasing the number of blower casings. Further, since the casing is independent for each fan, the cover for covering the fan drive shaft and the connection shaft can be made smaller in diameter than the blower casing, so that a space without a fan can be secured. For this reason, it is possible to secure a work space behind the operator's driver's seat and easily adjust the lower part of the side fertilizer. Furthermore, when transporting the fertilizer applicator composed of the side-row fertilizer separately from the rice transplanter main body, the blower casings are connected by a connecting shaft that connects the fan drive shaft, and a cover that covers the fan drive shaft and the connection shaft. Since only the blower casings are connected, it is easy to divide them for each blower casing, and it is easy to reduce the overall capacity and to carry out transportation.

According to a second aspect of the present invention, the total width of one or a plurality of the blower casings and a motor disposed at one end thereof is made equal to the total width of the one or a plurality of the side fertilizers. The width of the rice transplanter body is not extended by the side-strip fertilizer because it is configured to be equal or smaller, and the width of the side-strip fertilizer, especially the exhaust drive mechanism such as the motor and blower casing, is reduced during transportation and storage There is no need to fold and store.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a plan view of the same.

FIG. 3 is a cross-sectional plan view of the side fertilizer applicator.

FIG. 4 is a front view of the same.

FIG. 5 is a side sectional view of the same.

FIG. 6 is a side sectional view showing a state of supporting the side-row fertilizer.

FIG. 7 is a front partial cross-sectional view showing a lower part of the side fertilizer and a motor.

[Explanation of symbols]

 36 Side fertilizer applicator 46 Fertilizer application hopper 47 Feeding case 50 Electric motor 51 Blower casing 152 Fan 154 Inlet 156 Fan drive shaft 157 Connecting shaft 160 Cover 161 Discharge outlet

Claims (2)

[Claims] 1. A side fertilizer applied to a rice transplanter,
A feeding device is disposed below the fertilizer hopper, and a blower casing including at least a suction port, a discharge port, a fan, and a fan drive shaft is provided at a feeding portion of each feeding device, and a fan drive provided in the blower casing is provided. The shafts are connected to each other by a connecting shaft, and the outer diameter of an outer member covering the connecting shaft is
A side-strip fertilizer, wherein the outer diameter of the blower casing is smaller than the outer diameter of the blower casing. 2. The whole width of one or a plurality of said blower casings and the total width of a motor provided at one end thereof is equal to or smaller than the whole width of one or a plurality of said side fertilizers. The side-strip fertilizer applicator according to claim 1, characterized in that: