JPH08266124A - Rice transplanter with fertilizing machine - Google Patents

Abstract

PURPOSE: To obtain a rice transplanter with a fertilizing machine having different number of fertilizing pump by reducing number of necessary part materials to the utmost. CONSTITUTION: The objective rice transplanter has plural fertilizing pumps P1 respectively having pump casing with each pump casing part 50b for fertilizer receiving. These pump casing parts 50b are connected to a pipe-like state forming a fertilizer feeding pipe dividing and supplying paste fertilizer fed from a fertilizer tank 2 to each fertilizing pump P1 through a fertilizer supplying path 25A. Owing to this system, a paste fertilizer from the fertilizer tank 2 may be divided and supplied the plural fertilizing pumps P1 by connecting necessary numbers of fertilizer pumps P1 without using a supplying pipe connecting to every fertilizing pump P1 to divide and supply the fertilizer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of fertilizer application nozzles connected to a rear part of a traveling machine body so as to be vertically movable and supplying fertilizer to a field, and a plurality of paste fertilizers from a fertilizer tank. The rice planting machine with a fertilizer application, wherein the seedling planting apparatus is provided with a fertilizer application having a plurality of fertilizer pumps which are separately supplied to the fertilizer application nozzles.

[0002]

2. Description of the Related Art In the above rice planting machine, one shown in, for example, Japanese Patent Application No. 6-265146 has been constructed.
That is, as shown in FIGS. 12 and 13, a plurality of fertilization pumps P1 are attached to one fertilizer supply pipe 60 configured to be connected to the fertilizer tank 2, and a plurality of fertilizer supply pipes 60 are used. P1 is provided with a plurality of fertilizer supply holes 60a that communicate with each other, and the paste fertilizer supplied from the fertilizer tank 2 is distributed to the plurality of fertilizer pumps P1. The fertilizer can be distributed and supplied from the same fertilizer tank 2.

[0003]

[Problems to be Solved by the Invention] Conventionally, when making a rice transplanter with a plurality of types of fertilizer applicators having different numbers of rows capable of planting seedlings, if the number of rows of planting is different, the number of fertilizing pumps to be equipped also differs, It is necessary to prepare multiple types of fertilizer supply pipes with different numbers of fertilizer supply holes that communicate with the fertilizer application pump, which increases the number of required parts, increases the manufacturing cost, and selects an appropriate one from multiple types of parts. It was troublesome to do. The object of the present invention is, while being able to distribute and supply from a fertilizer tank to a plurality of fertilizer application pumps,
The aim is to reduce the number of required parts so that they can be obtained.

[0004]

In order to achieve the object, the present invention provides a rice transplanter with a fertilizer application described at the beginning, in which the pump casing of each of the plurality of fertilizer pumps is provided.
A pump casing part having a first opening and a second opening communicating with the suction part of the pump chamber and opening to the outside of the pump casing is provided, and the plurality of fertilizer application pumps are arranged in parallel to form a pump row. The pump casing portions of a pair of fertilizer application pumps that are adjacent to each other in a row are connected to each other, and one of the first opening and the second of the other of the pair of fertilizer application pumps that are adjacent to each other is connected.
An opening communicates with the fertilizer supply path, which connects the first opening of the fertilizer pump located at one end of the pump row to the fertilizer tank and supplies fertilizer from the fertilizer tank to the fertilizer pump. It is characterized by comprising a lid that closes the second opening of the fertilizer application pump located at the other end of the pump row.

[0005]

[Operation] The pump casing portion forms a fertilizer supply pipe corresponding to the conventional fertilizer supply pipe for the connection as described above,
A plurality of fertilizer application pumps are connected in parallel to the fertilizer supply path.
This fertilizer supply channel supplies paste fertilizer from the fertilizer tank to the pump casing, and the fertilizer supply pipe consisting of multiple pump casings distributes and supplies the paste fertilizer from the fertilizer tank to multiple fertilizer pumps. become.

[0006]

EFFECTS OF THE INVENTION Since the pump casing part of the fertilizer application pump forms a fertilizer supply pipe for distribution and supply, the fertilizer tank can be distributed and supplied to a plurality of fertilization pumps, and the same fertilizer tank can be supplied to a plurality of locations. As a result, fertilizer can be added all at once, which is an advantage. Moreover, by preparing and assembling the required number of fertilizer pumps, it has become possible to efficiently produce them at low cost.

[0007]

EXAMPLE As shown in FIG. 1, a link mechanism 4 swingable up and down by a lift cylinder 3 is provided at a rear portion of a self-propelled machine equipped with fertilizer tanks 2 and 2 located on both sides of an engine bonnet 1. The seedling planting device 10 is connected to the seedling planting device 10 through the up-and-down operation, and power is transmitted from the self-propelled machine to the seedling planting device 10 by the rotating shaft 5. The seedling planting device 10 is provided with a fertilizer application device 20 including a pump cover 21 and the like located above the rear end of the body of the seedling planting device 10 and configured to supply the paste fertilizer from the fertilizer tank 2 to the field mud. The power is transmitted from the seedling planting device 10 to the fertilizer application device 20, and thus a riding type rice transplanter with a fertilizer application device is configured.

As shown in FIGS. 1 and 2, the fertilizer applicator 20 is arranged in the vicinity of each of the plurality of seedling planting mechanisms 13 arranged side by side in the machine body of the seedling planting device 10, and a plurality of grounding devices are provided. All of the plurality of side fertilizer application nozzles 22 that are distributed to the float 15 and attached, one deep fertilizer application nozzle 23 that is attached to the front end side of each of the plurality of ground floats 15, and the side fertilizer application nozzle 22 First fertilizer pumps P1 connected to one of the pair of fertilizer tanks 2 and 2 and having the same number as the side-row fertilizer nozzles 22
First fertilizer supply path 25, the deep fertilizer application nozzle 23
Is connected to the other of the pair of fertilizer tanks 2 and 2, and is constituted by a second fertilizer supply path 27 having the same number of deep fertilizer nozzles 23 as the second fertilizer pumps P2. As shown in FIG. 3, the first fertilizer supply channel 25
Is a fertilizer supply path 25A connecting the fertilizer tank 2 to one pump casing 50 of the plurality of first fertilizer pumps P1, and the fertilizer supply path 25A is connected to all the first fertilizer pumps P1. The fertilizer supply pipe 25c and the discharge parts of the plurality of first fertilizer application pumps P1 to the plurality of side-row fertilizer nozzles 2
A plurality of flexible supply hoses 25 that are separately connected to 2
d of the paste fertilizer formed in each of the fertilizer tanks 2 and stored in the fertilizer tank 2, the level difference between the fertilizer tank 2 and the first fertilizer pump P1, the pulling action of the first fertilizer pump P1, and the fertilizer supply path 25A and the fertilizer. The first fertilizer pump P1 supplies the paste fertilizer supplied to all the first fertilizer pumps P1 by the supply action of the supply pipe 25c, and the side fertilization is performed by the feeding action of the first fertilizer pump P1 and the supply action of the supply hose 25d. Supply to the nozzle 22. Each side-row fertilizer nozzle 22 enters the field mud so that the nozzle tip side reaches a depth close to the seedling planting depth by the seedling planting claw 13a of the seedling planting mechanism 13, and the paste fertilizer from the first fertilizer pump P1 is applied to the nozzle tip. It is designed to drain from. As shown in FIG. 4, the second fertilizer supply path 27 includes the fertilizer tank 2 and a plurality of second fertilizer pumps P2.
Fertilizer supply passage 27A connected to one of the pump casings 50, and this fertilizer supply passage 27A
The fertilizer supply pipe 27c connected to the fertilizer application pump P2, and the plurality of flexible supply hoses 27d that individually connect the discharge parts of the plurality of second fertilizer application pumps P2 to the plurality of deep fertilizer application nozzles 23, respectively. And the paste fertilizer stored in the fertilizer tank 2 and the second fertilizer tank 2 and
The level difference of the fertilizer application pump P2, the pulling action of the second fertilizer application pump P2, and the fertilizer supply path 27A and the fertilizer supply pipe 27.
It is supplied to all the second fertilization pumps P2 by the supply action of c, and the paste fertilizer supplied to the second fertilization pump P2 is supplied to the deep fertilization nozzle 23 by the delivery action of the second fertilization pump P2 and the supply action of the supply hose 27d. Supply. Each deep fertilization nozzle 23 enters the field mud so that the nozzle tip side reaches a depth deeper than the seedling planting depth by the seedling planting claws 13a of the seedling planting mechanism 13, and paste fertilizer from the second fertilizer pump P2 from the nozzle tip. It is configured to let out. Thereby, the fertilizer application device 20
Supplies the paste fertilizer from one fertilizer tank 2 to the lateral row fertilizer nozzle 22 by the first fertilizer pump P1 and supplies it from the lateral row fertilizer nozzle 22 to the vicinity of the root of the planted seedling by the seedling planting nail 13a. The paste fertilizer in the other fertilizer tank 2 is supplied to the deep-layer fertilizer nozzle 23 by the second fertilizer pump P2, and is supplied from this deep-layer fertilizer nozzle 23 to a location deeper than the root of the planted seedling by the planting nail 13a.

As shown in FIGS. 2, 5 and 7, the first
The fertilizer application pump P1 and the second fertilizer application pump P2 are transmission cases 1 that form the body frame of the seedling planting device 10.
It is supported by the fertilizer frame 31 attached to the case part 11a of the first machine body facing forward and backward. Then, the rotational force of the transmission shaft 16 installed in the case portion 11b of the transmission case 11 facing the body of the vehicle is controlled by the transmission structure shown in FIGS. 6 and 7 to form the first fertilizing pump P1 and the second fertilizing pump P2.
The fertilizer pumps P1 and P2 can be driven by transmitting to the respective input shafts 24 or 26. That is, the transmission shaft 16 is interlocked with the bevel gear mechanism 32, and the universal joint portion 33a is provided on the way.
The rotary transmission shaft 33 provided with is attached over the transmission case portion 11b and the support member 34 connected to the fertilizer application frame 31, and the rotational force of the rotary transmission shaft 33 is transferred to the first fertilizer application pump P1 of the fertilizer application frame 31. Second fertilizer pump P
The transmission chain 37a or 37b is used for transmission to the respective input shafts 35a or 36a of the pair of transmissions 35, 36 mounted between the transmissions 2 and 3. The rotational power of the output shaft 35b of one of the pair of transmissions 35, 36 is transmitted by the transmission chain 38a to the input shaft 24 of the fertilization pump P1 closest to the transmission 35 among the plurality of first fertilization pumps P1. In the plurality of first fertilizer application pumps P1, the input shafts 24 of the pair of pumps P1 and P1 adjacent to each other are interlocked by the transmission chain 39a. The rotational power of the output shaft 36b of the other 36 of the pair of transmissions 35 and 36 is transmitted to the input shaft 26 of the fertilization pump P2 closest to the transmission 36 of the plurality of second fertilization pumps P2 by the transmission chain 38b. In the plurality of second fertilizing pumps P2, the input shafts 26 of the pair of pumps P2 and P2 adjacent to each other are linked by the transmission chain 39b.

As shown in FIG. 8, the transmission 35 is attached to the fertilizer frame 31 via a support base 40.
Connecting bolt 4 for fixing the support base 40 to the fertilizer application frame 31
Plural bolt holes 31a for 1 and fertilizer frame 31
In preparation for this, when the connecting bolts 41 are replaced in the bolt holes 31a, the support base 40 moves with respect to the fertilizer application frame 31, and the mounting position of the transmission 35 to the fertilizer application frame 31 approaches the first fertilizer application pump P1. It is configured such that the tension of the transmission chain 38a wound around the output shaft 35b of the transmission 35 and the input shaft 24 of the first fertilization pump P1 changes in a direction away from the first fertilization pump P1. The transmission 35 is applied to the fertilizer frame 31.
With respect to any of the attachment positions in the entire adjustable range of movement adjustment with respect to the input shaft 35a and the rotation transmission, the distance between the input shaft 35a of the transmission 35 and the rotation transmission shaft 33 hardly changes. The positional relationship between the movement adjusting region of the transmission 35 and the rotary transmission shaft 33 is set so that the tension of the transmission chain 37a wound around the shaft 33 does not change so much that the transmission is hindered. In other words, by changing the mounting position of the transmission 35 to the fertilizer application frame 31, the transmission 35 is changed to the first fertilization pump P1.
The tension of the transmission chain 38a for transmitting power to
Even if this tension adjustment is performed, the tension of the transmission chain 37a for transmitting the power from the rotary transmission shaft 33 to the transmission 35 hardly changes, and the transmission to the transmission 35 is not hindered.

As shown in FIG. 3, the first fertilizer supply channel 2
The fertilizer supply passage 25A of 5 connects a flexible supply hose 25a extending from the fertilizer tank 2 to a position below the first fertilizer pump P1 and the flexible supply hose 25a to the fertilizer supply pipe 25c. And the lid 2 as shown in FIG.
5e and the supply pipe 25b having a drain port. As shown in FIG. 4, the fertilizer supply path 27A of the second fertilizer supply path 27 includes a flexible supply hose 27a extending from the fertilizer tank 2 to a position below the second fertilizer application pump P2, and a flexible supply hose 27a. The flexible supply hose 27a is connected to the fertilizer supply pipe 27c and is formed by a supply pipe 27b having a drain port with a lid 27e.

In the fertilizer supply pipe 25c of the first fertilizer supply passage 25, a plurality of first fertilizer pumps P1 are arranged in a line in the longitudinal direction of the fertilizer frame 31, as shown in FIGS. By connecting and fixing by a pair of connecting rods 42 configured to penetrate the pump casing 50 of each of the plurality of first fertilizer pumps P1,
A part 50b of the pump casing of each of the plurality of first fertilizer pumps P1 arranged in parallel and connected in a tubular shape
And a lid 28 attached to the pump casing portion 50b of the first fertilizer application pump P1 located at the end opposite to the side to which the fertilizer supply pipe 25 is connected, of both ends of the pump row. .

That is, as shown in FIG. 9, the pump casing 50 of each of the plurality of first fertilizing pumps P1 is
It is formed by a pump casing body 50a for supplying fertilizer and a pump casing portion 50b for receiving fertilizer which is formed as a separate part from the pump casing body 50a and is connected to one end of the pump casing body 50a. The pump casing main body 50a includes a rubber stator 51,
A screw-shaped rotor 52 located inside the stator 51, a suction portion 53 located at one end of the stator 51,
A pump chamber 55 having a discharge portion 54 located on the other end side of the stator 51 is provided. When the rotor 52 rotates, the paste fertilizer existing in the suction part 53 is pressurized and the discharge part 54 is pressed.
By pumping from the pump casing body 50a
Supplies paste fertilizer. Pump casing part 50
b is the first opening to the outside of the pump casing 50
A first flange 58 for connection having an opening 56a and a rod hole 57a for attaching the connection rod 42.
a, a second opening 56b that is open to the outside of the pump casing 50 and is concentric with the first opening 56a and faces in the opposite direction, and a rod hole for attaching the connecting rod 42. 57b and a second flange 58b for connection having
The a and 56b communicate with each other through the internal space of the pump casing portion 50b and also with the suction portion 53. As a result, the pump casing portion 50b is
Even if the paste fertilizer is supplied to either the first opening 56a or the second opening 56b, the paste fertilizer is supplied to the suction portion 53 of the pump chamber 55, and at least one of the first opening 56a and the second opening 56b is supplied. Of the paste fertilizer received from the opening 56a or 56b of the other
It is possible to flow from a to the outside of the pump casing portion 50b.

In the pump row formed by the plurality of first fertilizer application pumps P1, one pump casing portion 50b of the pair of first fertilizer application pumps P1 and P1 adjacent to each other and the other pump casing portion 50b of the other. And the first flange 58a and the second flange 58b are connected to each other and the first opening 56a of the one pump casing portion 50b and the second opening 56b of the other pump casing portion 50b communicate with each other, The plurality of pump casing portions 50b are connected in a communicating state. The first of the pump casing portions 50b of the first fertilizer application pump P1 located at the end on the side where the fertilizer supply path 25A is located, of the two ends of the pump row.
The opening 57a is connected to the fertilizer supply path 25A. Accordingly, the plurality of pump casing portions 50b are connected to the fertilizer supply path 25A so that the paste fertilizer from the fertilizer tank 2 flows into the pump chambers 55 of the plurality of first fertilizer application pumps P1 at one end. A tubular body is formed to be connected to the paste fertilizer in a distributed manner.
The lid 28 is the fertilizer supply path 2 of both ends of the pump row.
The second flange 5 of the pump casing portion 50b of the first fertilizer pump P1 located at the end opposite to the side to which 5A is connected.
8b includes a short tube member 28a configured to be connected to the 8b by the connecting rod 42, and a cap 28b detachably attached to a male thread portion of the short tube member 28a,
The opening of the tubular body formed by the plurality of pump casing portions 50b on the side opposite to the side connected to the fertilizer supply passage 25 is closed so that the paste fertilizer does not leak out from the opening. Accordingly, the pump casing portion 50b and the lid 28 of each of the plurality of first fertilizer application pumps P1 distributes and supplies the paste fertilizer from the fertilizer supply passage 25A to the plurality of first fertilizer application pumps P1. 25c is formed.

The pump casings 50 of the plurality of second fertilizer pumps P2 are also formed by a pump casing body 50a similar to the first fertilizer pump P1 and a pump casing portion 50b connected thereto, and the second fertilizer supply path is provided. Similarly to the fertilizer supply pipe 25c, the fertilizer supply pipe 27c of 27 is also connected to the pump casing 50b of each of the plurality of second fertilization pumps P2 and the fertilizer supply passage 27A of both ends of the pump row. It is formed by a lid 29 similar to the lid 28 attached to the pump casing portion 50b of the second fertilizer application pump P2 located at the end opposite to the side.

Incidentally, V shown in FIG. 9 is a three-way valve for switching the fertilizer supply from the fertilizer application pump P1 or P2 to the fertilizer application nozzle 22 or 23 to enable or disable. When the fertilizer supply to the fertilizer application nozzles 22 or 23 is switched to disabled, the fertilizer delivered from the discharge portion of the fertilizer application pump P1 or P2 is returned to the suction portion 53 of the fertilizer application pump P1 or P2 by the return hose H.

[Other Embodiments] The present invention is also applicable when only one of lateral row fertilization applied near the planting seedling and deep fertilization deeper than the seedling planting depth can be performed. Is applicable.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of the entire rice transplanter with a riding type fertilizer applicator.

FIG. 2 is a plan view of the fertilizer application device.

[Fig.3] Illustration of fertilizer supply channel in side fertilizer application section

FIG. 4 is an explanatory diagram of a fertilizer supply path in the deep fertilizer application section.

FIG. 5: Side view of fertilizer application

FIG. 6 is a schematic diagram of a fertilizer pump drive structure.

FIG. 7 is a side view of a fertilizer pump drive structure.

FIG. 8 is a rear view of the transmission disposition unit.

FIG. 9 is a sectional view of a fertilizer application pump.

FIG. 10 is a cross-sectional view of a side-row fertilizer pump connection structure.

FIG. 11 is a sectional view of the connection structure of the deep-layer fertilizer pump.

FIG. 12 is an explanatory diagram of a fertilizer supply structure for a conventional fertilizer application pump.

FIG. 13 is a sectional view of a fertilizer supply structure for a conventional fertilizer application pump.

[Explanation of symbols]

 2 Fertilizer tank 10 Seedling planting device 20 Fertilizer applying device 25A, 27A Fertilizer supply channel 50 Pump casing 50b Pump casing part 53 Suction part 55 Pump chamber 56a, 1st opening 56b 2nd opening P1, P2 Fertilizer pump

Claims (1)

[Claims] 1. A seedling planting device (1) at the rear of the traveling machine body.
0) are connected so that they can be moved up and down freely, and a plurality of fertilizer application nozzles (22, 23) for supplying fertilizer to the field and paste fertilizer from the fertilizer tank (2) are applied to the plurality of fertilizer application nozzles (22, 23). A rice planting machine with a fertilizer application, comprising a fertilizer application device (20) having a plurality of fertilizer application pumps (P1, P2), which are separately supplied, to the seedling planting device. ) Each pump casing (50) communicates with the suction part (53) of the pump chamber (55) and the pump casing (5).
0) is provided with a pump casing part (50b) having a first opening (56a) and a second opening (56b) opening to the outside, and the plurality of fertilizer application pumps (P1, P2) are arranged in parallel to form a pump row. However, in the pump row, the pump casing portions (50b) of the pair of fertilizing pumps (P1, P1), (P2, P2) adjacent to each other are connected to each other, and the pair of fertilizing pumps adjacent to each other ( P1,
P1), (P2, P2) one of the first openings (56
a) communicates with the other second opening (56b), and the fertilizer tank (2) is connected to the first opening (56a) of the fertilizer application pumps (P1, P2) located at one end of the pump row. ) To supply fertilizer from the fertilizer tank (2) to the fertilizer application pumps (P1, P2).
5A, 27A) and a lid (28, 29) for closing the second opening (56b) of the fertilizer application pump (P1, P2) located at the other end of the pump row. Rice transplanter with device.