JP2001016939A - Rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice transplanter capable of readily carrying out transportation, washing, etc., without striving for the prevention of collision and water penetration in a blower and facilitating reduction in air blasting resistance and stably feed of fertilizer transportation air by installing a fertilizing blower at a specific position. SOLUTION: This rice transplanter is equipped with a fertilizing machine 36 at the rear of a machine body. A fertilizer blower 41 is installed ahead a fertilizer feed part 38 of the fertilizing machine 36 at the central part of the machine body. In the operation, preferably the fertilizing blower 41 is arranged below a driver's seat and the fertilizing blower 41 is laid in the interior of a step 12 of the rice transplanter. Preferably the section of the outlet side of a blower pipe 42 of the fertilizing blower 41 to be connected to the fertilizer feed part 38 is enlarged in a widening manner toward the end.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter having a seedling mounting table and planting claws for continuously performing seedling planting operations and for applying fertilizer to the side of a planting strip.

[0002]

Conventionally, there is a technique in which fertilizer in a fertilizer application hopper is conveyed by blowing air from an air supply pipe of a blower to perform fertilizer application. In the prior art, the air supply pipe is disposed in the left and right longitudinal direction below the fertilizer supply section, and the air supply pipe and a plurality of multi-row fertilizer supply sections are connected,
Since the blower is installed at one end of the air supply pipe, the blower is located on the outside of the machine, making it easy to collide with obstacles. Water easily enters from the connection opening of the blower or the air supply pipe, and there is a problem that the motor of the blower rusts or the fertilizer is hardened and clogged by moisture. Also, in order to equalize the blowing pressure of each fertilizer feeding section for multi-row, it is necessary to use a large-diameter air supply pipe or to increase the blowing volume of the blower. There is a problem that it is not possible to easily achieve miniaturization, miniaturization, improvement in handling operability, and the like.

[0003]

SUMMARY OF THE INVENTION The present invention provides a rice transplanter having a fertilizer applicator at the rear of the fuselage, wherein a fertilizer blower is installed at the center of the fuselage in front of the fertilizer feeding section of the fertilizer. Unlike the conventional structure installed outside the fuselage, there is no need to move the blower in and out of the fuselage, and it is possible to easily transport or wash the car without preventing collision or inundation of the blower. By shortening the connection distance, it is possible to easily reduce the blowing resistance and stably supply the fertilizer conveying wind.

In addition, a blower for fertilizer application is installed below the driver's seat, which causes damage due to a collision or the like, rainwater or car wash water enters, and movement of workers around the driver's seat is restricted. And the like can be easily eliminated, and the blower mounting structure can be simplified and the workability can be easily improved.

Further, since the fertilizer blower is installed inside the step of the machine, there is a problem that it is damaged by a collision or the like, a problem that rainwater or car wash water enters, and a movement of an operator around the driver's seat is restricted. Problems can be easily eliminated, and the blower mounting structure can be simplified and workability can be easily improved.

In addition, the blower pipe of the fertilizer blower connected to the fertilizer feeding section is formed so that the cross section on the outlet side is enlarged in a divergent shape, so that the blower resistance inside the blower pipe is reduced to reduce the blower pressure loss. This can easily reduce the size and weight of the blower, and can easily secure the fertilizer transport wind power.

Further, the blower motor of the blower for fertilizer application is arranged at a position higher than the suction port and the discharge port. Even if a heat radiation gap is formed between the blower motor and the blower fan, the blower motor is flooded. Can be easily eliminated, and the air cooling structure or the waterproof structure of the blower motor can be easily simplified.

In addition, the suction port of the blower for fertilizer application is provided inside the step of the apparatus, and the step of the apparatus can be used as a waterproof cover for the suction port. Water is sucked into the suction port during rainy work or during car washing. Troubles can easily be eliminated, a waterproof cover for rainy weather work can be omitted, and handling operability can be easily improved.

[0009] Further, the fertilizer conveying air discharge direction of the fertilizer blower and the fertilizer conveying direction from the fertilizer feeding section are made to coincide with each other.
Compared to the conventional structure in which the fertilizer conveyance air discharge direction is the machine body left-right direction and the fertilizer conveyance direction is formed to the machine body rearward direction, the airflow resistance can be reduced and the airflow pressure loss can be easily reduced, improving the airflow efficiency and improving the airflow power. Reduction can be easily achieved.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a riding rice transplanter, and FIG. 2 is a plan view thereof. In the drawing, (1) shows a traveling vehicle on which an operator rides, and an engine (2) is mounted above a front portion of a body frame (3). A front axle case (5) is supported in front of the transmission case (4) via a front axle case (5), and a rear axle case (7) is connected to a rear portion of the transmission case (4). The rear axle case (7) supports the paddy field traveling rear wheel (8). A spare seedling mount (10) is mounted on both sides of the hood (9) covering the engine (2) and the like, and a footrest (11).
The transmission case (4) and the like are covered with a body cover (12), which is a step in which the operator gets on the vehicle, and a driver's seat (13) is mounted on the upper part of the body cover (12). A steering handle (14) is provided in front of and behind the hood (9).

In the figure, reference numeral (15) denotes a planting section provided with a seedling mounting table (16) for planting six rows and a plurality of planting claws (17). Forward tilting seedling platform (1
6) is supported on a planting case (20) via a lower rail (18) and a guide rail (19) so as to be reciprocally slidable right and left, and a rotary case (21) is rotated at a constant speed in one direction. A pair of claw cases (22) and (22) are supported at the case (20) and symmetrically positioned around the rotation axis of the case (21), and the claw case (22) is provided.
(22) Attach the planting claws (17) and (17) to the tip. A support frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and travels via a link mechanism (27) including a top link (25) and a lower link (26). A support frame (24) is connected to the rear side of the vehicle (1), and a lifting cylinder (28) for raising and lowering the planting section (15) is connected to the lower link (26) via the link mechanism (27). Front and rear wheels (6)
(8) is driven to move and at the same time, a seedling for one plant is planted from the seedling mounting table (16) which is reciprocally slid left and right.
7), the seedlings are continuously planted.

In the figure, (29) is a main shift lever, (3)
0) is a sub-shift lever for planting elevating and working travel shifting, and (3)
1) is a planting sensitivity setting device, (32) is a main clutch pedal, (33) and (33) are left and right brake pedals, and (34).
Is a center float for two rows equalization, (35) is a side float for two rows equalization, and (36) is a fertilizer applicator for six rows.

Further, as shown in FIGS. 3, 4, 5 and 6, a fertilizer application hopper (37) for adding fertilizer, a fertilizer feeding case (38) as a fertilizer feeding section for quantitatively feeding fertilizer, and a float ( 34) A turbo blower-type blower (41) for discharging fertilizer through a flexible pipe-conveying hose (40) to the side striation groove device (39) of (35), and a hollow fertilizer-conveying air supply air duct ( 42) is provided in the fertilizer application section (36), and a blower (41) is attached to the front side of the driver's seat (13) to provide six sets of fertilizer feeding cases (3).
8) The air duct (42) is connected to.

Further, left and right base frames (45) and (45) are mounted on both sides of a horizontal frame (44) extending between upper ends of the left and right supports (43) at the rear end of the body frame (3) so as to be substantially horizontal in the front-rear direction. The base frame (4
5), a fertilizer application section (36) is provided, and a side stay (46) is connected between the rear end of the base frame (45) and the vehicle body frame (3).
5) A vertical frame (47) is erected on (45) to support the center receiving plate (48) and the left and right receiving plates (49). The upper part of the center and left and right receiving plates (48) (49) The front side is fixed integrally with a round pipe-shaped front frame (50), and the upper rear side is fixed integrally with a square pipe-shaped rear frame (51). Six sets of feeding cases (38) are attached to the front and rear frames (50) and (51).
Is fixedly supported.

Further, a lower outlet (53) of the hopper (37) is fitted into an inlet (52) on the front side of the upper surface of the feeding case (38), and the feeding case (38).
An outlet (54) is formed at the lower front side, and the outlet (54) is closed by a removable cap (55).

A bottom cover (56) is detachably fixed to the lower surface of the feeding case (38), and an outlet (57) is formed on the lower surface of the bottom cover (56) made of hard synthetic resin. A joint pipe (58) made of a soft synthetic resin for fitting a front end to the air duct (42) is provided, and a hose joint (5) made of a hard synthetic resin is provided at the rear end of the pipe (58).
9) The front end is detachably fitted, and the transfer hose (40) is fitted to the rear end of the joint (59).
The blower (41) blows air from the air duct (42) to the hose joint (59) and the hose (40), and the outlet (57) of the bottom cover (56) connects the joint (5).
9) The fertilizer that falls in the middle is moved to the transfer hose (40). The inlet (60) is formed upward and open in the middle of the joint (59) forming the T-shaped flange, and the outlet of the bottom lid (56) is formed. The fitting cap (61) is fixed to (57), the cap (61) is detachably fitted to the outer wall of the entrance (60), and the exit (57) is connected to the entrance (60).

Further, an inlet plate (64) having an inlet (62) and a plurality of substantially square outlets (6) on the same circumference.
5) A feeding plate (66) which is a feeding roll having ... and an outlet plate (68) having a discharge port (67), and the plates (64), (66), and (68) made of substantially circular flat plates are fed. A multi-layer arrangement is provided between the case (38) and the bottom cover (56), and a pay-out shaft (69) is rotatably supported substantially vertically on the pay-out case (38). ) (68) through the lower end of the feeding shaft (69) through the central portion of each plate (64).
(66) An extension shaft (69) so that (68) can be pulled out downward.
And the plates (64), (66), (68) are elastically pressed between the feeding case (38) and the bottom cover (56), and the inlet plate (64) and the outlet plate (68) are connected to the feeding case (38). ) To each plate (64), (68), and the feeding shaft (69).
And the feeding plate (66) is moved to the feeding shaft (69).
And the feeding plate (6) by the feeding shaft (69).
6) is forcibly rotated so that the fertilizer which has entered the feeding port (65) from the intake port (62) is moved to the discharge port (67) and dropped in the direction of the outlet port (57). Also, a spring scraping rod (70) is fixed to the feed shaft (69), and the fertilizer at the bottom cover (56) and the outlet (57) is dropped.

Further, a PTO shaft (71) for transmitting the output of the engine (2) to the planting portion (15) extends rearward from the transmission case (4), and a bearing case (43) is attached to the left support (43). 72) is fixed by welding or bolting, and the input shaft (73) of the bearing case (72) is interlocked and connected to the middle of the PTO shaft (71) via a chain (74). 75) A vertical drive shaft (77), which is a feed-out drive member, is connected to the rear end portion substantially vertically vertically via a pair of bevel gears (76). In addition, the second and third sets of feeding cases (3
8) With the upper end of the vertical drive shaft (77) facing between them, the vertical input shaft (79) is connected to the feed shaft (69) via a pair of bevel gears (78). The upper end of the drive shaft (77) is interlocked and connected via a pair of bevel gears (80). Then, the feed shaft (69) is rotated via the input shaft (79) by the rotation of the PTO shaft (71) to feed the fertilizer. In addition, a ring cone stepless transmission (81) as a stepless speed change mechanism is interposed between the vertical drive shaft (77), and the rotation of the feed shaft (69) is steplessly shifted to thereby feed the case (38). )
It is configured to adjust the amount of fertilizer to be fed from the plant.

Further, as shown in FIGS. 2, 6, and 7, a fan case (83) in which a blower fan (82) is provided.
And an electric blower motor (84) for driving the blower fan (82) provided in the blower (41). An auxiliary body frame (85) is provided inside the body cover (12) below the driver's seat (13). The fan case (83) is fixed via the fan case (83), and the blower motor (8)
4) and attach the suction port (8
6) is opened downward, a discharge port (87) is formed on the rear surface of the fan case (83), the air duct (42) is connected to the discharge port (87), and the vehicle body cover (12) behind the driver's seat (13) is opened. ) Use the air duct (4
2) The fertilizer (36) is extended over the entire width in a divergent form.

Further, similarly to the front and rear frames (50) and (51), the lower frame (88) is integrally fixed to the receiving plates (48) and (49), and the lower frame (88) is engaged with the engaging plate (89). ) Is detachably bolted and fixed, and the hose joint (59) is engaged with the downward opening notch (90) of the engagement plate (89) from below, and is detachably bolted and fixed. The joint pipe (58) is removed from the air duct (42) by removing the plywood (89) or removing the hose joint (59) from the engaging plate (89), and the hose joint (59) is closed. (56) and the bottom cover (5
6) It is configured to remove and carry out cleaning of the feeding case (38).

A blower (4) is provided inside the body cover (12) below the driver's seat (13) at the center of the left and right width of the traveling vehicle (1).
1) is disposed, and the rear part of the air duct (42) for connecting the joining pipe (58) to the discharge port (87) connecting part at the front part of the air duct (42), which has a substantially uniform upper and lower width, is divergent in plan view. The air duct (42) has a continuously increasing cross-sectional area on the rear side with respect to the front side of the air duct (42). The amount of air blown to each transfer hose (40) is configured to be substantially equal. Further, the blowing direction of the air duct (42) by the blower (41) and the fertilizer transfer direction of the transfer hose (40) are made substantially coincident, and the branch hose (42) and the transfer hose (40) are connected via the hose joint (59). Connected in a straight line, blower (41)
The air pressure loss between the discharge port (87) and the hose joint (59) is reduced, and the upper surface of the blower (41) is blocked by the vehicle body cover (12), so that the fan case (83) can be used during rainy weather work or car washing. ) To prevent water from entering inside.

An openable and closable lid (91) is attached to both sides of the rear end of the air duct (42).
By removing the air duct (42), the inside of the air duct (42) is cleaned, and the suction port (86) is opened toward the upper surface of the transmission case (4) fixed to the body frame (3). The transmission case (4) is closed to prevent water or mud from entering the fan case (83) through the suction port (86).

As is apparent from the above description, in a rice transplanter equipped with a fertilizer applicator (36) at the rear of the machine body, a fertilizer applicator (3
A fertilizer blower (41) is installed in the center of the fuselage in front of the fertilizer feeding case (38), which is the fertilizer feeding section of 6),
The blower (4)
1) It is not necessary to put in and out, and transport or car washing can be performed without preventing collision or inundation of the blower (41), and the connection distance between the fertilizer feeding case (38) and the blower (41) on both sides is shortened. The fertilizer blower (41) is installed below the driver's seat (13) to reduce the air flow resistance and the stable supply of fertilizer transport air. In addition, it is possible to eliminate the problem that the movement of the worker around the driver's seat (13) is restricted, and to simplify the installation structure of the blower (41) and improve the workability.

The fertilizer blower (41) is installed inside the body cover (12), which is a step of the machine, to be damaged by a collision or the like, to enter rainwater or car wash water, and to rotate around the driver's seat (13). In addition to eliminating the problem of restricting the movement of the worker in the fertilizer, the installation structure of the blower (41) is simplified and the workability is improved, and the fertilizer blower (4) connected to the fertilizer feeding case (38).
The air duct (42), which is the blower tube of (1), is formed so that the cross section on the outlet side is enlarged in a divergent shape, the blowing resistance inside the air duct (42) is reduced to reduce the blowing pressure loss, and the blower (41) ) To reduce the size and weight and secure the fertilizer transport wind power.

The blower motor (84) of the blower for fertilization (41) is arranged at a position higher than the suction port (86) and the discharge port (87), and the blower motor (84) and the blower fan (8) are arranged.
Even if a heat-dissipating gap is formed between 2), the inconvenience of flooding the blower motor (84) is eliminated, the air-cooling structure or the waterproof structure of the blower motor (84) can be simplified, and the blower (41) for fertilizer application can be simplified. Connect the suction port (86) to the body cover (1
2) Provided inside the lower surface side, and also serves as a body cover (12) as a waterproof cover for the suction port (86), eliminating the problem of water being sucked into the suction port (86) during rainy weather work or car washing, Omit the waterproof cover, and improve the handling operability. In addition, the direction of the fertilizer conveying air discharged from the fertilizer blower (41) and the direction of the fertilizer conveying from the fertilizer feeding case (38) are made to coincide with each other, so that the conventional fertilizer conveying air discharging direction is formed in the left-right direction of the machine and the fertilizer conveying direction is formed in the rear of the machine. As compared with the structure provided, the blowing resistance is reduced, the blowing pressure loss is reduced, the blowing efficiency is improved, and the blowing power is reduced.

Further, as shown in FIGS. 8 and 9, a blower (41) is provided substantially vertically vertically between the upper surface of the body frame (3) and the lower surface of the driver's seat (13) to form an isosceles triangle in plan view. The air outlet (87) of the blower (41) is connected to the top corner of the air duct (42), and the fertilizer feeding case (38) for six rows is arranged at the bottom of the air duct (42). 59), the volume of the air duct (42) is formed larger than that of FIGS. 4 and 7, the blowing pressure of the fertilizer transfer hose (40) for six rows is kept substantially equal, and the air duct (42) is connected. 42) The whole is inclined from front to back to back and high in side view to prevent fertilizer or dust from staying inside the rear end of the air duct (42).

Further, as shown in FIGS. 10 and 11, a blower (4) is provided on the upper surface of the vehicle body cover (12) behind the driver's seat (13).
1) is installed, and the fertilizer feeding case (3) for 6 rows is provided in the left and right air duct type air ducts (42) arranged in a mountain shape in plan view.
8) to be installed, and the air duct (42) for 6 lines
The air duct (42) is provided in the middle of the air duct (42), and the air duct (42) is inclined from the front to the rear in the side view, and the air duct (42) is connected to the air duct (42) at the front high position.
2) Hose joint (59) with front high and low low at rear low position
A transfer hose (40) is provided through the air outlet, and the discharge port (87) to the transfer hose (40) of the blower (41) are connected in a substantially straight line in a side view, thereby reducing the air blowing loss reaching the transfer hose (40). . Further, as shown in FIG. 12, left and right discharge ports (87) are formed in the fan case (83) to connect the left and right air ducts (42), or as shown in FIG. 13, the discharge ports (87) of the fan case (83) are formed. ), A left and right distribution ridge-shaped partition (42a) is formed inside the air duct (42), and the six air ducts (42) are divided into three right and left sections at the center, and the discharge port (87) is formed. The blowing pressure difference between the near-central transfer hose (40) and the distant side transfer hose (40) is made smaller than that of the conventional single air duct structure, and the blow pressure for transferring each of the six fertilizers is made uniform, and Reduce blower loss and reduce the size of the blower.

[0028]

As is apparent from the above embodiment, the present invention relates to a rice transplanter equipped with a fertilizer applicator (36) at the rear of the machine body, in front of the fertilizer feeding section (38) of the fertilizer applicator (36), at the center of the machine body. The fertilizer blower (41) is installed in the part, and it is not necessary to put the blower (41) in and out of the body unlike the conventional body outer installation structure, and to prevent the blower (41) from colliding or flooding. Transport or car washing can be easily performed without any trouble, and the connection distance between the fertilizer feeding section (38) on both sides and the blower (41) can be shortened to easily reduce the blowing resistance and stably supply the fertilizer conveying wind. It can be planned.

Further, the blower (41) for fertilizer application is connected to the driver's seat (1).
It is installed below 3), and easily eliminates problems such as damage caused by collisions, rainwater or car wash water, and problems in which movement of workers around the driver's seat (13) is restricted. Thus, the structure for mounting the blower (41) can be simplified and the workability can be easily improved.

A blower (41) for fertilizer application is installed inside the step (12) of the present machine, which has a problem of being damaged due to a collision or the like, a problem of entering rainwater or car wash water, and a problem around the driver's seat (13). The problem that the movement of the worker is restricted can be easily eliminated, and the structure for attaching the blower (41) can be simplified and the workability can be easily improved.

The blower pipe (42) of the fertilizer blower (41) connected to the fertilizer feed-out section (38) is formed such that the cross section on the outlet side is enlarged in a divergent shape. It is possible to easily reduce the blowing pressure loss by reducing the internal blowing resistance, and to easily reduce the size and weight of the blower (41) and secure the fertilizer conveying wind.

The blower motor (84) of the blower for fertilization (41) is arranged at a position higher than the suction port (86) and the discharge port (87), and the blower motor (84) and the blower fan ( Even if a heat-dissipating gap is formed between 82), it is possible to easily eliminate the problem that the blower motor (84) is flooded,
It is possible to easily simplify the air cooling structure or the waterproof structure of the blower motor (84).

The inlet (8) of the fertilizer blower (41)
6) is provided inside the step (12) of the machine, and is used as a waterproof cover for the suction port (86).
The suction port (86) when working in rainy weather or when washing the car
This makes it possible to easily eliminate the problem that water is sucked into the water, to omit a waterproof cover for rainy weather work, and to easily improve handling operability and the like.

Further, the direction of discharge of the fertilizer transfer air from the fertilizer blower (41) and the direction of transfer of the fertilizer from the fertilizer feeding section (38) are the same. Compared with a structure formed in the rearward direction of the fuselage, the airflow resistance can be reduced and the airflow pressure loss can be easily reduced, so that the airflow efficiency and the airflow power can be easily reduced.

[Brief description of the drawings]

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

FIG. 2 is an overall plan view of the riding rice transplanter.

FIG. 3 is a side view of the planting section.

FIG. 4 is a plan view of a fertilizer application unit.

FIG. 5 is a rear view of the fertilizer application section.

FIG. 6 is a cross-sectional side view of the fertilizer application section.

FIG. 7 is an explanatory side view of the fertilizer applicator.

FIG. 8 is a plan view showing a modification of FIG. 4;

FIG. 9 is an explanatory side view of the same.

FIG. 10 is a plan view showing another modification of FIG. 4;

FIG. 11 is a side view of the same.

FIG. 12 is an explanatory diagram of the blower unit.

FIG. 13 is an explanatory diagram of the blower unit.

[Explanation of symbols]

 (12) Body cover (this machine step) (13) Driver's seat (36) Fertilizer applicator (38) Feeding case (feeding part) (41) Blower (42) Air duct (blower tube) (84) Blower motor (86) Suction Mouth (87) Discharge port

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yuichi Ogawa 1-32 Chaya-cho, Kita-ku, Osaka-shi F-term (reference) 2B052 BC05 BC16 DB08 EB02 EB05 EB12 EC03 EC07 ED08 2B060 AA02 BA04 BA07 BA09 BB03 BB06 BB08 BB10 CA01 CA04

Claims (7)

[Claims] 1. A rice transplanter equipped with a fertilizer applicator at the rear of the machine body, wherein a blower for fertilizer application is installed at the center of the machine body ahead of the fertilizer feeding section of the fertilizer machine. 2. The rice transplanter according to claim 1, wherein the fertilizer blower is installed below a driver's seat. 3. The rice transplanter according to claim 1, wherein a blower for fertilizer application is installed inside the machine step. 4. The rice transplanter according to claim 1, wherein a blower tube of the fertilizer blower connected to the fertilizer feeding section is formed so that a cross section on an outlet side is enlarged in a divergent shape. 5. The rice transplanter according to claim 1, wherein the blower motor of the blower for fertilizer application is disposed at a position higher than the suction port and the discharge port. 6. The rice transplanter according to claim 1, wherein an inlet of the fertilizer blower is provided inside the step of the present machine. 7. The rice transplanter according to claim 1, wherein a fertilizer conveying air discharge direction of the fertilizer application blower and a fertilizer conveying direction from the fertilizer feeding unit are made to coincide with each other.