JPH0451804A - Rice transplanter with fertilization device - Google Patents

Abstract

PURPOSE:To surely feed fertilizer to a manuring device and to excellently discharge residual fertilizer, by making a conveyor in such a way that the conveyor is reached from the front of a seedling placing stand through the lower part of the seedling placing stand to the rear and separably connecting the conveyor to the manuring device. CONSTITUTION:Screw conveyors 6 are laid in such a way that the screw conveyors are positioned at the lower part of a support pipe 2E to form a support of an arm 2D to hold floats 2B in a planting device 2 below a seedling placing stand 2A and are passed through the adjoining left and right floats 2B from the front position of the seedling placing stand 2A to the rear position. A delivery column 6D is detachably fixed to a separating hopper 4C' at a connecting part of a hopper 4C of the screw conveyors 6 and the delivery column 6D can be changed into any release state.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a rice transplanter equipped with a fertilizing device, and more specifically, a planting device is connected to the rear of a traveling vehicle body, and a fertilizing device is attached to the planting device. The present invention relates to a device in which a tank for storing fertilizer is supported by the traveling vehicle body, and a conveyor is provided for supplying fertilizer from the tank to the fertilizer application device.

[Conventional technology]

In the above-mentioned rice transplanter with a fertilizing device, the fertilizing device is located behind the seedling stand, so the rear of the fertilizing device is open.
Maintenance of the fertilizer application device can be easily performed with good workability. Moreover, since the tank is supported by the vehicle body rather than the planting device, even if you are trying to improve work efficiency by increasing the amount of fertilizer loaded and reducing the number of fertilizer replenishments, the center of gravity of the machine It is possible to stabilize the aircraft by preventing it from moving backwards.

Conventionally, in order to supply fertilizer from the tank to the fertilizer application device in a rice transplanter equipped with a fertilization device that has such an advantage, a conveyor has conventionally been disposed across the tank and the fertilization device through the upper side of the seedling stand and the left and right sides. Ta.

[Problem to be solved by the invention]

However, the conventional technology has the following drawbacks.

If a conveyor is installed through the top of the seedling rack, the conveyor and its support will be located above the seedling rack, so when feeding seedlings from above to the seedling rack, the conveyor and support will be placed above the seedling rack. This obstructs the supply of seedlings and worsens the workability of supplying the seedlings to the seedling stand.

On the other hand, when a conveyor is provided through the left and right outer sides of the seedling stand, the conveyor protrudes further to the left and right than the seedling stand, resulting in a large horizontal width of the machine body.

An object of the present invention is to eliminate the above-mentioned drawbacks.

[Means to solve the problem]

The characteristic configuration of the rice transplanter with a fertilization device according to the present invention is that the conveyor is arranged from a front part of the seedling tray to a rear part through the bottom of the seedling tray, and is detachably connected to the fertilization device. And, in the separated state, the connecting portion is configured to be able to be changed to a position in which the connecting portion is located at the discharge position.

[For production]

The purpose of the planting device is to transmit power from the front of the seedling stand through the underside of the seedling stand to the planting arm, which is located behind the seedling stand and takes out the seedlings from the seedling stand and plants them. As a result, the lower end of the seedling stand is placed at an appropriate height above the field surface. In other words, in the planting device,
A space is formed below the seedling stand to connect the front part and the rear part of the seedling stand.

By focusing on the space above the seedling table and placing the conveyor through that space, the conveyor can reach the rice field in the same way as in the conventional case where conveyors are placed above the seedling table or on the left and right sides. While the safety of the conveyor is ensured by avoiding contact and collision, the conveyor does not interfere with the supply of seedlings to the seedling stand or protrude outward from the left or right side of the planting device. Moreover, by separating the conveyor from the fertilization device and driving the conveyor with the conveyor connection section positioned at the discharge position, the residual fertilizer in the tank and conveyor can be removed.

〔Effect of the invention〕

Therefore, according to the present invention, the fertilizing device is arranged behind the seedling stand and the tank is supported by the traveling vehicle body, which is advantageous in terms of maintenance of the fertilizing device and improvement of the stability of the machine. Also, fertilizer can be reliably supplied from the tank to the fertilization device without causing inconveniences such as deterioration of the workability of feeding seedlings to the seedling stand or increase in the horizontal width of the machine body. Furthermore, by effectively utilizing the conveyor, it is possible to discharge the remaining fertilizer in the tank and the conveyor, which is necessary after work, with good work efficiency.

〔Example〕

Examples of the present invention are shown below.

As shown in Figure 1, the rice transplanter is a passenger-type traveling vehicle (1
), attach the 6-row planting device (2) to the rear of the link mechanism (
A fertilizing device (4) for fertilizing each planting row is attached to the planting device (2), and a tank (5) for accommodating fertilizer is connected to the traveling vehicle body (1 ), and is provided with a screw conveyor (6) that supplies fertilizer from the tank (5) to the fertilizer application device (4), so that planting and fertilization can be performed simultaneously by running.

The traveling vehicle body (1) is of a four-wheel drive type, and is provided with spare seedling loading sections (7) on the left and right sides of the front bonnet (IA), and on the left and right sides of the driver's seat (IB). The above-mentioned tanks (5) are arranged at each of both sides. In other words, there are two tanks (5), each with a lid (5A) on the top.
A fertilizer supply port is formed that opens and closes with.

The planting device (2) has a well-known structure including a seedling stand (2A), three soil leveling floats (2B) arranged side by side in the left and right direction, and a planting arm (2C). Explanation will be omitted.

The fertilizer application device (4) is arranged behind the seedling stand (2A). Specifically, as shown in FIGS. 2 and 3, a trencher (4A) that forms fertilizing grooves on each side of each planting row in the rice field as it travels; Six fertilizer delivery devices (4B) that supply fertilizer to the fertilizers,
The fertilizer feeding device (4B) is provided with a hopper (4C) that supplies fertilizer in a distributed manner.

The fertilizer dispensing device (4B) is a roll (4) that dispenses the fertilizer in the hopper (4C) by swinging around the left and right axis.
a) and a fertilizer supply pipe (4b) that guides the fertilizer fed out by the roll (4a) to fall into the groove, and is located at the center side as the drive shaft (4c) of the roll (4a). Three rolls: one that drives two rolls (4a), one that drives two rolls (4a) located on the left and right sides, and one that drives two rolls (4a) located on the other left and right sides. It is equipped with Each of the drive shafts (4C) is driven by a rod (8) that reciprocates as the planting arm (2C) of the planting device (2) rotates.

The hopper (4C) includes a hopper section (4d) for each of the three fertilizer dispensing devices (4B) located on the left and right sides, and a hopper section (4d) for each of the three fertilizer dispensing devices (4B) located on the left and right sides.
B) with a hopper section (4d) for each
It is divided into left and right.

The divided hopper (4C') is provided with a fertilizer receiving port above the boundary between the central hopper part (4d) and the inner hopper part (4d) in the upper part.

The screw conveyor (6) is connected to one of the left and right tanks (
5) is supplied from the bottom of the left and right divided hopper (4C') to the fertilizer receiving port, and from the bottom of the other left and right tank (5) is supplied to the fertilizer receiving port of the other left and right divided hopper (4C''). Each of these screw conveyors (6) connects the fulcrum of the arm (2D) that supports each float (2B) of the planting device (2) to the seedling stand (2A). The fulcrum pipe (2
The seedling tray (2A) is disposed on the lower side of the seedling stand (2A) and extends between the floats (2B) adjacent to each other on the left and right, from the front part to the rear part of the seedling stand (2A).

The screw conveyor (6) includes a flexible supply pipe (6A) that guides the fertilizer, and a supply pipe (6A) that rotates in one direction around its axis within the supply pipe (6A).
It is equipped with a coil spring (6B) that transfers the fertilizer in 6A) in one direction along the inside of the supply pipe (6A), and a hydraulic motor (6C) (an example of an actuator) that drives the coil spring (6B). It is generally called a spring conveyor. In other words, the tank (5
) and the fertilizer application device (4), the supply pipe (6)
A) and the coil spring (6B) are bent and deformed to allow the planting device (2) to move up and down even though it spans the tank (5) and the fertilizer application device (4). Then, one end of the supply pipe (6A) is connected to the bottom of the tank (5) so as to take out the fertilizer from the bottom of the tank (5) and supply it to the fertilizer receiving port of the dividing hopper (4C''), and the supply pipe Connect the other end of (6A) to the discharge tube (6D
) is connected to the fertilizer receiving port of the split hopper (4C'), and one end of the coil spring (6B) is inserted into the bottom of the tank (5). In addition, the longitudinal intermediate portion of the screw conveyor (6) is
The holder (2E) is suspended and supported around the fulcrum pipe (2E) via a U-shaped bolt so as to be able to swing freely around the fulcrum pipe (2E).
H) is held movably in the longitudinal direction. Note that the holder (H) may be fixed to the fulcrum pipe (2E).

The discharge cylinder (6D) is a connection part of the screw conveyor (6) to the hopper (4C), and is a connection part of the screw conveyor (6) to the hopper (4C).
) is removably attached to the In other words, the screw conveyor (6) is connected to the fertilizer application device (4) in a separable manner, and as shown in FIG. It can be moved to different positions.

Further, the discharge cylinder (6D) is attached to the supply pipe (6A) so as to be freely rotatable around the axis of the supply pipe (6A). In other words, the screw conveyor (6) has a discharge cylinder (6D
) The discharge direction can be changed by rotating.

Further, at the bottom of the tank (5), as shown in FIG. 5, a fertilizer discharge port is formed which can be opened and closed with a lid (5B).

In addition, the rice transplanter is equipped with a planting device (2
) to the spraying device (11), and the spraying device (11)
By connecting the discharge pipe (6D) of the screw conveyor (6) to the tank (5), the tank (5) can be used as a tank for sprayed substances such as herbicides and insect repellents, and the spraying device (one of which is connected to the screw conveyor) can be connected to the tank (5). In (6), it is configured to be able to switch to a spreader that supplies and spreads the material to be spread.

Furthermore, the rice transplanter is equipped with a fertilizer supply control device that controls the supply of fertilizer from the tank (5) via the screw conveyor (6) to the fertilizer application device (4).

As shown in FIG. 4, the fertilizer supply control device includes six residual amount sensors (
S, ), and two tank remaining amount sensors (
S2) and detecting that the amount of fertilizer remaining in each of the tanks (5) has become equal to or less than a second setting that is greater than the setting.
one alarm sensor (S3) and two first priority switches (S4) corresponding to each of the screw conveyors (6).
, two second priority switches (S,) corresponding to each of the screw conveyors (6), and a notification device (12),
A main switch (S,) and a work sensor (S) that detects that the planting device (2) is located in the upper non-work area of the lifting range.
S7), and the remaining amount sensor (Sl), the remaining amount sensor in the tank (S2), the alarm sensor (S3), the first priority switch (S,), and the second priority switch (S,) are in the state Based on the control valve (6a) of the hydraulic motor (6C)
A controller (13) is provided to control a drive circuit (6b) for and the notification device (12).

The first priority switch (S4) and the second priority switch (
Ss) is a push button switch that is ON while the suppression operation is being performed and turned OFF when the operation is released, and the first priority switch (
S4) is installed at a location that can be operated from the driver's seat (IB) of the vehicle body (1).

On the other hand, the second priority switch (S,) is installed near the end of the corresponding screw conveyor (6) on the fertilizer application device (4) side.

The notification device (12) includes a display monitor using a lamp and a buzzer. The display monitor includes a control display section that indicates that the controller (13) is in a controlled state, and a control display section that indicates that the controller (13) is in a controlled state, and the tank (5).
A supply display section that indicates that the fertilizer is being supplied from the tank (5) to the hopper (4C), a fertilizer supply instruction display section that indicates that the remaining amount of fertilizer in the tank (5) has fallen below the second setting, and 5) and a stop display section that indicates when the remaining amount of fertilizer has fallen below the setting.

The controller (13) is in a controlled state only when the main switch (S,) is ONI and the work sensor (S7) is not detected, and is in a non-controlled state at other times. The supply control means (14) and the prohibition means (1
5), priority means (16), and notification means (17).

The supply control means (14) controls the division hopper (4C''
) located on one of the three remaining level sensors (S
Based on the detection of at least one of υ, the drive circuit (6b) is switched to a state in which the hydraulic motor (6C) of the screw conveyor (6) corresponding to one of the divided hoppers (4C') is operated, and the remaining amount is a control system that switches the drive circuit (6b) to a state where the hydraulic motor (6C) is stopped based on non-detection of all the sensors (S,); and a control system arranged in the other of the split hoppers (4C') Based on the detection of at least one of the three remaining amount sensors (Sl), the drive circuit ( 6b), and a control system that switches the drive circuit (6b) to a state in which the hydraulic motor (6C) is stopped based on the non-detection of all the remaining amount sensors (S,).

The inhibiting means (15) is a remaining amount sensor (S2) in the tank.
is in the detection state, the divided hopper (4
Of the supply control by the supply control means (14) to C'), the control to switch the drive circuit (6b) to a state in which the hydraulic motor (6C) is activated based on the detection of the remaining amount sensor (S,) is prohibited. However, this is a means for canceling the inhibition when the remaining amount sensor (S2) in the tank is in a non-detection state.

The priority means (16) is the first priority switch (S4).
) and the second priority switch (S6) are set to O.
When N, the prohibition by the prohibition means (15) is canceled, and the hydraulic motor (of the corresponding screw conveyor (6)
6C) is a means for switching the drive circuit (6b) to a state in which it is activated.

The notification means (17) is the main switch (S6)
is ONL and the work sensor (s7) is not detecting, the control display section of the display monitor in the notification device (12) is activated to display, and at least one of the remaining amount sensors (Sl) is detected. When the fertilizer supply instruction display section of the display monitor is activated, the feed display section of the display monitor is activated to display, and when the warning sensor (S) is detected, the fertilizer supply instruction display section of the display monitor is activated and the buzzer is activated. This means operates the stop display section of the display monitor when the remaining amount sensor (S2) in the tank is detected.

According to the above embodiment, during work, the display operation of the fertilizer supply instruction display section of the display monitor in the notification device (12) causes
You can see that the fertilizer in the tank (5) will soon run out. Moreover, when the remaining amount of fertilizer in the tank (5) falls below the set value, the operation of the screw conveyor (6) is automatically prohibited. can prevent unexpected activation. Moreover, even if the operation of the screw conveyor (6) is prohibited, the first priority switch (Ss) or the second
By turning on the priority switch (S4), it is possible to consciously operate the screw conveyor (6), which is useful when it is desired to replenish some fertilizer to the hopper (4C) during work.

In addition, as shown in Figure 2, there is also a creu conveyor (6).
The first priority switch (S4) or the second priority switch (
By turning on S,), the screw conveyor (6) is operated, and the residual fertilizer in the tank (5) and the screw conveyor (6) can be discharged to the collection section and collected. In addition, the bottom lid (5B) of the tank (5)
By opening it, the remaining fertilizer in the tank (5) can be discharged.

[Another example]

Another embodiment of the invention is shown below.

(1) In the above embodiment, a screw conveyor is shown as the conveyor (6), but the conveyor (6) may be one that conveys the fertilizer along the inside of the supply pipe using air.

[2] In the above embodiment, a flexible conveyor (6) is shown, but the conveyor (6) may have a joint for bending.

[3] In the above embodiment, the tank (5) and the conveyor (6
) are distributed to the left and right to improve the left-right balance of the aircraft, but the number of tanks (5) and conveyors (6) can be changed as appropriate.

[4] Note that although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view, FIG. 2 is an enlarged cutaway side view of the main part, FIG. 3 is a rear view of the main part, FIG. 4 is a control block diagram, and FIG. The figure is a longitudinal sectional front view of the main part, and FIG. 6 is a side view of the main part showing the state of switching to the spreader. (1)... Traveling vehicle body, (2)... Planting device, (2A)... Seedling stand, (4)...
... Fertilizer application device, (5) ... Tank, (6) ...
... Conveyor, (6D) ... Connection section.

Claims (1)

[Claims] A planting device (2) is connected to the rear of the traveling vehicle body (1), and a fertilizing device (4) is attached to the rear of the seedling stand (2A) of the planting device (2). A tank (5) for storing fertilizer is supported by the traveling vehicle body (1);
A rice transplanter with a fertilizing device, which is equipped with a conveyor (6) for supplying fertilizer from the tank (5) to the fertilizing device (4), and the conveyor (6) is connected to a position in front of the seedling platform (2A). It is arranged so that it passes through the underside of the seedling stand (2A) and reaches the rear part, and is separably connected to the fertilizer application device (4), and the connecting part (6D) is located at the release position in the separated state. A rice transplanter with a fertilization device that is configured to be able to change its position.