JP2000262122A - Rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To excellently drive a fertilizing and feeding part by an extremely simple constitution means. SOLUTION: In this rice transplanter equipped with a fertilizing machine 36 at the upper side of the rear of the rice transplanter, a driving member 77 for linking and connecting a PTO shaft 71 below the rice transplanter to a feeding part 38 of the fertilizing machine 36 is installed. The driving member 77 is arranged in the longitudinal width between a fertilizer hopper 37 and the feeding part 38.

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 table and planting claws for continuously performing seedling planting operations, and more particularly to a rice transplanter for applying fertilizer to the side of a planting strip.

[0002]

Conventionally, in a rice transplanter equipped with a fertilizer applying fertilizer in a fertilizer application hopper by an air flow from an air supply pipe of a blower to perform fertilizer, a fertilizer is not used. The air supply pipe is disposed in the left and right longitudinal direction in front of the delivery section to make good pipe connection between the air supply pipe and the delivery section, and the drive link mechanism for driving the delivery section is driven by air. A drive link mechanism is provided behind the feed section opposite to the feed pipe to avoid interference with the air feed pipe. However, in the case of a structure in which the drive link mechanism is provided behind such a feeding portion, in order to avoid interference when the seedling mounting is rolled or pitched, the vertical length of the seedling mounting can be reduced, The length of the link connecting the planting part to the machine is increased, but in this case, there are inconveniences such as an insufficient amount of seedlings on the seedling mounting table and an increase in the entire length of the machine. In addition, when maintaining the vertical length and link length of these seedling mounting stands constant, lower the support height of the fertilizer,
It is necessary to avoid interference with the seedling mounting table by shortening the drive link, etc., but as the support height of the fertilizer applicator becomes lower, it becomes more difficult to connect the pipe between the air supply pipe and the feeding section, As the drive link becomes shorter, the influence of backlash and dimensional accuracy increases, and there is a problem that the drive accuracy is reduced.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a rice transplanter equipped with a fertilizer applicator above the rear part of the machine, and a drive member for interlocking a PTO shaft below the machine and a feed section of the fertilizer machine. At the same time, the drive member is arranged within the front and rear width of the fertilizer applicator, and the drive member is compactly arranged within the front and rear width of the fertilizer application hopper and the feed section without interfering with the rear planting section or the front machine step. In the rear planting section, even if rolling or pitching occurs, the function of the driving member is stably maintained without interfering with the driving member, and seedlings are provided in the front step (body cover). The workability is improved by securing a large area as a scaffold for various works such as splicing.

In addition, a transmission mechanism for changing the rotation of the driving member input to the feeding portion is interposed in the driving member, so that the amount of fertilizer fed from the feeding portion can be easily adjusted by a simple configuration means. Thus, the fertilization accuracy is improved.

[0005]

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 of the riding rice transplanter. In FIG. 1, (1) is 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 gear transmission case (4). The rear axle case (7) supports a 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 the vehicle body cover (1) is a step in which an operator gets on via a footrest (11).
2) cover the transmission case (4) and the like, and mount a driver's seat (13) above the vehicle body cover (12);
A steering handle (14) is provided in front of the driver's seat (13) and behind the hood (9).

[0006] In the figure, reference numeral (15) denotes a planting portion provided with a seedling mounting table (16) for six-row planting 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.

[0007] In the figure, (29) is the 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 two-floor leveling center float, (35) is a two-floor leveling side float, and (36) is a side-row fertilizer that is a six-row fertilizer.

Further, as shown in FIGS. 3 and 4, a fertilizer application hopper (37) for adding fertilizer, a fertilizer feeding case (38) which is a fertilizer feeding section for quantitatively feeding fertilizer, and a float (3).
4) A turbo blower-type blower (41) for discharging fertilizer through a flexible transfer hose (40) to the side striation groove device (39) of (35), and an air tank (42) which is a cylindrical air supply pipe. ) Is provided in the fertilizer application section (36), and a blower (41) is attached to the right end of the air tank (42), and six sets of fertilizer feeding cases (38) for six rows are arranged above the air tank (42). Let me.

As shown in FIGS. 6 and 7, a horizontal frame (44) extending between upper ends of left and right supports (43) at the rear end of the body frame (3) is provided on both sides of a left and right base frame (4).
5) A fertilizer application part (36) is provided via the base frame (45) for attaching the (45) and horizontally extending in the front-rear direction, and between the rear end of the base frame (45) and the vehicle body frame (3). Side stays (46) are connected to the left and right base plates (49) and (4) on the elevating rails (47) and (48) which are erected on the front and rear of the left and right base frames (45) and (45).
The fertilizer (36) is supported so as to be able to move up and down freely through 9).

The upper front sides of the left and right bearing plates (49) and (49) are integrally fixed by a round pipe-shaped horizontal frame (50), and the upper rear sides thereof are integrally fixed by a square pipe-shaped horizontal frame (51). Six sets of feeding cases (38) are fixedly supported on the horizontal frames (50) and (51), and the horizontally long air tank (42) is detachably fixed between the front sides of the left and right base frames (45) and (45). I have.

As shown in FIG. 5, the feeding case (38)
The lower outlet (53) of the hopper (37) is fitted into the inlet (52) on the front side of the upper surface of the upper case, and the outlet (54) is formed on the lower side of the front surface of the feeding case (38). The outlet (54) is closed by (55).

In addition, 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. (42) is provided with a joining pipe (58) made of a soft synthetic resin for fitting the front end thereof,
8) Hose joint made of hard synthetic resin at the rear end (59)
The front end is detachably fitted, the transfer hose (40) is fitted to the rear end of the joint (59), and the blower (41) blows air from the air tank (42) to each pipe (58). The joint (59) forming a T-shaped flange by moving fertilizer which is blown out to the (40) and falls from the outlet (57) of the bottom lid (56) to the middle of the joint (59) to the transfer hose (40).
In the middle, the inlet (60) is formed upward and open, and the bottom lid (5
6) A fitting cap (61) is fixed to the outlet (57), the cap (61) is detachably fitted to the outer wall of the inlet (60), and the outlet (57) is connected to the inlet (60). Let me.

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 side of the feeding shaft (69) to form an outlet plate (6).
8) A spring (70) is resiliently pressed from below on the lower surface, the plates (64), (66), and (68) are supported on the feeding shaft (69) so that they can be pulled out downward, and each plate (6) is closed by a closing lever.
4) Pull out the case (38) and the bottom cover (5)
6) The inlet plate (64) and the outlet plate (68) are locked to the feeding case (38), and each plate (6) is pressed.
4) The feed shaft (69) is made to rotate freely with respect to (68), and the feed plate (66) is engaged with the feed shaft (69).
The feeding plate (66) is forcibly rotated by the feeding shaft (69), and the fertilizer that has entered the feeding port (65) from the inlet (62) is moved to the discharge port (67) and falls in the direction of the outlet (57). It is configured to be.

Further, as shown in FIGS. 4, 6 to 8, a PTO shaft (71) for transmitting the output of the engine (2) to the planting portion (15) extends rearward from the transmission case (4). At the same time, the bearing case (72) is welded and fixed to the left support (43), and the input shaft (73) of the bearing case (72) is positioned between the PTO shaft (71) and the chain (7).
4), and a vertical drive shaft (77) as a drive member for feeding is substantially vertically connected to the rear end of the output shaft (75) of the bearing case (72) via a pair of bevel gears (76). It is linked and linked.

As shown in FIG. 4, the vertical drive shaft (77) faces the upper end between the second and third sets of the feeding cases (38) from the left side in rear view, and each of the feeding shafts (69). ), The upper end of the vertical drive shaft (77) is operatively connected via a pair of bevel gears (80) to a horizontally extending feed input shaft (79) that is operatively connected via a pair of bevel gears (78). The input shaft (7) is rotated by the rotation of the PTO shaft (71).
The feed shaft (69) is rotated through 9) to feed the fertilizer.

As shown in FIG. 9, a pair of bevel gears (8) for connecting the vertical drive shaft (77) and the input shaft (79).
0) is placed in the bevel case (81), and the input shaft (7)
The gear shaft (82) of the bevel gear (80) on the 9) side is divided, and the gear shaft (82) is connected via a roll pin (84) to a cylindrical joint (83) fixed to the connection side end of the input shaft (79). Both ends are detachably fitted and fixed.

As shown in FIGS. 10 and 11, a ring cone continuously variable transmission (85) as a continuously variable transmission mechanism is interposed between the vertical drive shaft (77). The machine (85) has an input disk (86) arranged on the input side lower drive shaft (77a), an output disk (87) arranged on the output side upper drive shaft (77b), and both plates. (86) A plurality of planetary cones (88) disposed between (87) and a speed change ring (89) frictionally engaging the conical surface of the planetary cone (88). A transmission case (90) of the continuously variable transmission (85) is disposed rearward on the left outside, and a feed amount adjusting knob (9) is provided on a guide portion (91) at the rear end of the transmission case (90).
An adjusting screw shaft (93) having 2) is provided, and the adjusting screw shaft (9) is provided.
The front end of the shifter (94), the rear end of which is connected to 3), is engaged with and connected to the speed change ring (89).
By moving the transmission ring (89) via the shifter (94) by the rotation operation of 2) and changing the position in the vertical direction to the frictional engagement of the conical surface of the planetary cone (88), the output side drive shaft ( The rotation taken out at 77b) is continuously variable, so that the amount of fertilizer fed from the feeding case (38) is appropriately adjusted.

As shown in FIGS. 5, 9, 12, and 13, between the bevel gear (78) fixed to the upper end of the pay-out shaft (69) and the pay-out shaft (69), a locking clutch is provided. (95), the clutch (95) forms a feed shaft (69) below the bevel gear (78) on a spline shaft (69a), and the spline shaft (69a).
A cylindrical clutch body (96) is fitted slidably up and down, and the opposing lower surface of the bevel gear (78) and the clutch body (9) are fitted.
6) Clutch claws (97) and (98) connected to the upper surface are formed integrally with each other, and a clutch spring (99) is interposed between the lower surface of the clutch body (96) and the feeding case (38). When the clutch body (96) is moved downward against the movement of the clutch body (99), the coupling of the clutch bodies (97) and (98) is released.

A pair of shift shafts (100) are provided on the outer peripheral edge of the upper surface of the clutch body (96) at front and rear opposing positions about the pay-out shaft (69). A shift shaft (100) is connected via a swing arm (102) to a clutch operation shaft (101) that is rotatably supported on a case (38), and an operation shaft (101) that protrudes outside the feeding case (38). Stop lever (10
3) The lower end is fixed, the upper ends of the stopper levers (103) of the respective feed-out cases (38) are interlocked and connected by the stopper wire (104), and the rear side of the seedling table (16) as shown in FIG. By connecting the wire (104) to the unit clutch lever (105), the unit clutch lever (1) is connected.
05) As shown in FIG. 12, when the wire (104) is pulled in the direction of the arrow against the lever return spring (106) as shown in FIG. 12, the coupling of the clutch claws (97) and (98) is released, and the fertilization of the corresponding strip is performed. It is configured to stop.

The vertical drive (77) and the feeding section (7)
Since it is arranged substantially vertically below 9) and is contained within the front and rear width of the fertilizer application section (36), even if rolling or pitching occurs in the rear planting section (15), even if it occurs. In addition, it is possible to always transmit a good feeding drive force without interfering with the seedling mounting table (16), and to stably maintain the feeding performance of the fertilizer.

The vertical drive shaft (77) is connected to the fertilizer application section (3).
6) Since it does not protrude further forward and does not protrude toward the body cover (12), a space is provided on the upper surface of the body cover (12) as an unobstructed large scaffold, and workability for various operations such as seedling splicing is improved. Can be improved.

The vertical drive shaft (77) is easily and compactly incorporated with an existing continuously variable transmission mechanism (85) such as a ring cone type, so that the amount of fertilizer fed out can be accurately adjusted by a simple structure. To improve the fertilization accuracy.

In the above embodiment, the PTO shaft (7
Although the structure in which the rotation of 1) is continuously transmitted to the feed input shaft (79) via the vertical drive shaft (77) has been described, as shown in FIG. 14, the rotation of the PTO shaft (71) is changed to the output shaft (75).・ Crank plate (107) ・ Rod (108) ・ Swing arm (1
09) The configuration may be such that the input shaft (79) is transmitted to the input shaft (79) via a one-way clutch (110) or the like to rotate the input shaft intermittently.

[0024]

As is apparent from the above embodiment, the present invention relates to a rice transplanter equipped with a fertilizer applicator (36) at the rear upper part of the machine, and a PTO shaft (71) below the machine and a fertilizer applicator (3).
The driving member (7) for interlockingly connecting the feeding portion (38) of (6).
7) and the drive member (77) is arranged within the front and rear widths of the fertilizer application hopper (37) and the feeding portion (38), so that the drive member (77) is attached to the rear planting portion (1).
5) It is disposed compactly within the front and rear widths of the fertilizer application hopper (37) and the feeding section (38) without interfering with the front machine step (12), etc., and the rear planting section (15).
Even if rolling or pitching occurs, the function of the driving member (77) is stably maintained without interfering with the driving member (77). The workability can be improved by securing a large area as a scaffold.

Further, since the speed change mechanism (85) for changing the rotation of the drive member (77) to be input to the feeding portion (38) is interposed in the drive member (77), it is possible to use a simple configuration means. It is possible to easily adjust the amount of fertilizer to be fed from the feeding section (38), thereby improving the fertilization accuracy.

[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 rear view of the fertilizer application section.

FIG. 5 is a cross-sectional side view of a fertilizer application section.

FIG. 6 is an explanatory side view of a fertilizer application frame part.

FIG. 7 is an explanatory rear view of the base frame unit.

FIG. 8 is an explanatory side view of the continuously variable transmission unit.

FIG. 9 is an explanatory rear view of the feeding case portion.

FIG. 10 is an explanatory diagram of a continuously variable transmission unit.

FIG. 11 is an explanatory diagram of a continuously variable transmission.

FIG. 12 is an explanatory view of a locking clutch unit.

FIG. 13 is an explanatory view of a locking clutch unit.

FIG. 14 is another driving explanatory diagram.

[Explanation of symbols]

 (36) Fertilizer application section (fertilizer) (38) Feeding case (extending section) (71) PTO shaft (77) Drive shaft (drive member) (85) Transmission (transmission mechanism)

Claims (2)

[Claims] In a rice transplanter equipped with a fertilizer applicator above a rear part of the machine, a drive member for interlocking a PTO shaft below the machine and a feeding section of the fertilizer is provided, and a fertilizer application hopper and a front and rear of the feeding section are provided. A rice transplanter wherein a drive member is arranged within the width. 2. The rice transplanter according to claim 1, wherein a speed change mechanism for shifting the rotation of the drive member input to the feeding portion is interposed in the drive member.