JP2001258345A - Rice planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice planting machine in which an amount of fertilizer to be fed by a fertilizing machine is controlled by subjecting a ring cone-type transmission gear box to variable speed operation, capable of easily conducting the variable speed operation of the transmission gear box regardless of whether the gear box is shifted to be driven or not. SOLUTION: In this rice planting machine constituted so that an output power of an engine is transmitted to a drive shaft (64) positioned in a discharging portion (38) of a fertilizer applicator (36) through the ring cone-type transmission gear box (79), a clutch (83) is installed so that the clutch shifts between 'on' and 'off' positions for driving an input shaft (80) of the gear box (79) by the output power of the engine, and another power mechanism (84) is installed as a separate system so that the power mechanism (84) drives the input shaft of the gear box (79) independently from the output power of the engine when the clutch (83) shifts to the 'off' position.

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 a planting claw for continuously performing seedling planting operations, and to a rice planter for simultaneously applying fertilizer to the side of a planting strip.

[0002]

Conventionally, an engine output is transmitted through a ring cone type transmission to a drive shaft for driving a feeding portion of a fertilizer application device, and the fertilizer is fed from the feeding portion by shifting the transmission. The amount is adjusted to maintain an appropriate amount of fertilizer. However, in the case of the structure in which the amount of fertilizer is adjusted using such a ring cone type transmission, when the input / output shaft of the transmission is in a stopped state where the input / output shaft is not rotating, when the speed change operation is performed, the transmission ring is forcibly moved. This caused inconveniences such as damage to the planetary cone, generation of abnormal noise, and reduced durability.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a rice transplanter in which an engine output is transmitted to a drive shaft of a feed section of a fertilizer by a ring cone type transmission. And a power mechanism for driving the input shaft of the transmission by a system different from the engine output when the clutch is disengaged, so that the machine is stopped when the machine is not in operation, or the fertilizer applicator or the plant The transmission can be operated easily without any trouble even when the operation of the attachments is stopped, so that the work efficiency of the work of adjusting the amount of fertilizer is improved, and the performance of the transmission is maintained stably and the durability is improved. It is intended.

[0004] Further, the power mechanism is interlocked with the shifting operation of the transmission, and the input shaft is rotated during the shifting operation, and the input shaft is always rotated during the shifting operation of the transmission to promote smooth shifting. Thus, the operability of the transmission is improved.

[0005] Further, a clutch is interposed between a transmission shaft for transmitting engine output to the input shaft and the input shaft, and a handle is provided for operating a shift adjusting portion of the transmission. The clutch is interlocked with the steering wheel, and the gearshift operation of the transmission and the rotation of the input shaft are performed by the steering wheel. The handle is connected to the input shaft only when the clutch is disengaged, and the engine output is transmitted to the steering wheel. In addition to reliably preventing inconveniences such as inconveniences, erroneous operations such as performing a shift operation while the rotation of the input shaft is stopped are also reliably prevented, and the fertilizer application can be always easily and easily adjusted by the handle to enable a good adjustment of the fertilization rate.

[0006]

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 same. In the drawing, (1) is a traveling vehicle which is a traveling body on which an operator rides, and an engine (2) is mounted in front 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 the rear of the transmission case (4). The rear axle case (7) supports a paddy field traveling rear wheel (8) as a wheel. A spare seedling mount (10) is attached to both sides of the hood (9) covering the engine (2) and the like, and the step (12) is a body cover on which an operator rides via a footrest (11). A driver's seat (13) is mounted above the step (12), covering the transmission case (4) and the like, and a steering handle (14) is provided in front of the driver's seat (13) and at the rear of the hood (9).

[0007] In the figure, reference numeral (15) denotes a planting portion 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 two-floor leveling center float, (35) is a two-floor leveling side float, and (36) is a six-row fertilizer applicator.

Further, as shown in FIGS. 3 and 4, a fertilizer hopper (37) for adding fertilizer, a fertilizer feeding case (38) as a fertilizer feeding section for supplying a fixed amount of fertilizer, and a float (3).
4) An air blower (4) for discharging fertilizer to the side-story groove device (39) of (35) via a flexible transfer hose (40).
1) is provided in the fertilizer applicator (36).
Below the set of fertilizer feeding cases (38), six sets of six blowers (41) are arranged respectively, and the feeding case (38)
And a blower (41) are connected to a transfer hose (40) via a joint joint (42). Each of the blowers (4
1) The fan (41b) in the casing (41a) is interlocked and connected by a left and right fan shaft (41c), and the left and right end of the fan shaft (41c) is interlocked and connected to a single electric fan motor (41d). And a single motor (41d)
To drive six sets of blowers (41).

A left and right base frame (4) is provided on both sides of a horizontal frame (44) extending between upper ends of left and right supports (43) at the rear end of the body frame (3) via a base mounting plate or the like.
5), a side stay (46) is connected between the rear end of the base frame (45), which is substantially horizontal in the front-rear direction, and the body frame (3), and the left and right base frames (45) are connected.
A fertilizer applicator (36) is supported by a fertilizer application frame (47) standing upright at (45) via front and rear horizontal frames (48) and (49).

As shown in FIG. 5, the feeding case (38)
A lower outlet (51) of the hopper (37) is fitted into an inlet (50) on the front side of the upper surface of the upper case, and an outlet tube (52) is formed at the lower front side of the feed case (38). 52) is closed by an opening / closing plug (53).

A bottom cover (5) inclined forward (the upper end is inclined forward and the lower end is inclined backward) is provided on the lower surface of the feeding case (38).
4) is detachably fixed, and an outlet (55) is formed on the lower surface of the bottom cover (54) made of a hard synthetic resin. A merging joint (42) made of a hard synthetic resin is provided at the rear end of the blower (41). ) The front end is detachably fitted, and the transfer hose (40) is fitted to the rear end of the joint (42).
2) The fertilizer which is blown out to the hose (40) via the outlet (55) through the outlet (55) of the bottom lid (54) and moves the fertilizer which falls in the middle of the joint (42) to the transfer hose (40) to form a T-shaped flange. An inlet (56) is formed upward and open in the middle of the joint (42), a fitting cap (57) is fixed to an outlet (55) of the bottom cover (54), and the cap (57) is connected to the inlet (56). And the outlet (55) is connected to the inlet (56).

Further, an inlet plate (59) having an inlet (58), a feed plate (61) having a plurality of outlets (60)... On the same circumference, and an outlet plate having a discharge port (62). (63), and each plate (59) (6) made of a substantially circular flat plate.
1) The (63) is disposed between the feeding case (38) and the bottom lid (54) in a forwardly inclined and multilayered manner, and the feeding case (3) is provided.
8) The feeding shaft (64) is rotatably supported on the rear side in a forwardly inclined posture, and the lower end of the feeding shaft (64) is made to pass through the center of each of the plates (59), (61) and (63), and the entrance is formed. The plate (59) and the outlet plate (63) are locked to the feeding case (38), and each plate (5
9) The feeding shaft (64) idles with respect to (63), and the feeding plate (61) is supported by the feeding shaft (64).
The feeding plate (61) is forcibly rotated by the feeding shaft (64), and the fertilizer that has entered the feeding port (60) from the intake port (58) is moved to the discharge port (62) and drops toward the outlet port (55). It is configured to be.

A cleaning member (65) for preventing clogging of fertilizer is provided in the bottom cover (54).
5) is formed of a linear body having a small wire diameter, and the upper half is formed with a bottom cover (5).
4) and formed in an inclined shape along the inner wall surface, and the lower half portion is connected to the outlet (55) of the bottom lid (54) and the junction joint (4).
A spring seat (67) is formed on a spring seat (66) which is formed in a substantially U-shape along the inner wall surface of the junction with the inlet (56) of 2) and is detachably fixed to the lower end of the feed shaft (64). The cleaning member (65) is also integrally rotated when the feeding shaft (64) rotates, and adheres to the bottom lid (54) and the inner wall surfaces of the outlet (55) and the inlet (56). The cleaning member (65) scrapes off fertilizer powder and the like to prevent clogging with fertilizer.

A fertilizer outlet (68) is opened on the lower surface on the inlet side of the take-out cylinder (52), and an opening / closing plug (53) is slidably inserted into the take-out cylinder (52). The opening / closing operation body (69) on the side is protruded outward from the take-out cylinder (52), and the plug (5) is pushed when the operation body (69) is pushed in.
The outlet (68) is closed by the outer peripheral surface of 3), and the outlet (68) is used when the operating body (69) is pulled out in the forward direction.
And release the fertilizer in the feeding case (38) with the blower (4).
It is configured to discharge into a discharge pipe (70) that is connected to the air outlet (41e) of 1), and to be collected in a collection container or the like via a transfer hose (40).

As shown in FIGS. 4 and 6 to 11, the PT for transmitting the output of the engine (2) to the planting section (15).
The O-axis (71) extends rearward from the transmission case (4), and a bearing case (7) is attached to the left support (43).
2) Weld or bolt and fix the bearing case (7
2) The input shaft (73) of the PTO shaft (71) is interlocked and connected via a chain (74) to the middle of the PTO shaft (71), and the bearing case (7) is connected.
In 2), an output shaft (76), which is a transmission shaft, is linked to an input shaft (73) via a chain (75) in an interlocking manner, and each of the feeding shafts (6) is connected.
4) to the output shaft (7) of the bearing case (72) via a ring cone stepless transmission (79) to a left-right feeding input shaft (78) interlockingly connected via a pair of bevel gears (77).
6) is linked.

The transmission (79) includes a transmission input shaft (80).
A transmission mechanism (not shown) such as a disk, a planetary cone, and a transmission ring is provided between the transmission and the transmission output shaft (81), and the transmission ring is moved by rotating the transmission adjustment shaft (82) as a transmission adjustment unit. The rotation of the rotation taken out to the output shaft (81) is continuously variable so as to adjust the amount of fertilizer fed from the feeding case (38). The output shaft (8) of the bearing case (72) is adjusted.
1) and a fertilizing clutch (83) is interposed between the input shaft (80) of the transmission (79) and an adjustment handle (84) as a fertilizing amount power mechanism is disposed above the transmission (79). The handle shaft (85) of the handle (84) and the adjustment shaft (82) are interlockedly connected via pulleys (86) (87) and a timing belt (88) to rotate the handle (84). By rotating the adjusting shaft (82), the feed amount of the fertilizer is adjusted.

The fertilizing clutch (83) is provided with a clutch body (89) that is always fitted to the spline shaft portion (80a) of the speed change input shaft (80), and swings around a swing shaft (90a). When the clutch body (89) is moved by the operation arm (90) and the clutch body (89) is fitted to the spline shaft portion (76a) of the output shaft (76), the fertilizer application clutch (83) is turned on and output. Shaft (76)
And the input shaft (80) are connected to each other by a clutch body (89).

Further, a worm gear shaft (91) is disposed above the speed change input shaft (80) in the left-right direction orthogonal to the input shaft (80), and the gear shaft (91) is disengaged when the fertilizing clutch (83) is disengaged. The worm gear (9) serving as the coupling member of (91)
Worm wheel (93) which is a connecting member to be meshed with 2)
Is integrally formed with the clutch body (89), and a gear shaft (91) is interlockedly connected to the shift adjusting shaft (82) via pulleys (94) and (95) and a timing belt (96), and the fertilizer application clutch (83) ) Upper adjustment handle (84)
As shown in FIGS. 6 and 8, the operation arm (91) is operatively connected to a fertilizing clutch lever (97) provided together with a lever guide (97a) via a connecting rod (98). When the fertilizer application clutch (83) is disengaged by the downward movement of the clutch lever (97) centering on the worm gear (92), the worm wheel (93) is engaged with the worm gear (92), and the adjustment shaft (82) and the worm gear shaft ( 91) are linked. When the feed amount is adjusted by turning the handle (84), the transmission input shaft (80) is also rotated at the same time, so that the friction engagement position between the planetary cone of the transmission (79) and the transmission ring is adjusted. Is easily changed without resistance,
When the rice transplanter is stopped, the planting section (15) and the fertilizer applicator (3
6) Even if the fertilizer amount is adjusted when the drive is stopped, it is possible to perform good adjustment without inconvenience, such as damaging the planetary cone due to forcible movement of the transmission ring, generating abnormal noise or reducing durability. It is configured to be.

As shown in FIGS. 9 and 11, a handle stopper (1) for restricting rotation of the adjustment handle (84) is provided.
00) to the belt cover (101) of the belt (88).
The stopper (100) is bent in a substantially U-shape, so that the mounting plate (10) on the outer wall of the belt cover (101) is formed.
2) Connect the base end of the open leg of the stopper (100) to the pivot (103).
And a pivot (103a) over the fulcrum is stretched between the outer wall of the cover (101) and the outer wall of the stopper (100), and the operating disk (84a) of the handle (84) is moved by the force of the spring (103a). ) Is brought into contact with the stopper (100), and the grip (84b) of the handle (84) is brought into contact with the stopper (10).
When the handle (84) is located between the bent side plates (100a) of (0), the operating position of the handle (84) is maintained, while the handle (84) is moved down about the pivot (103) as shown by the phantom line in FIG. At this time, the restriction of the handle (84) with respect to the grip portion (84b) is released so that the amount of fertilizer can be adjusted.

The handle shaft (85) has a screw portion (85).
a) to form a coupling body (104)
Are movably connected to each other, and the tip of the pointer (104a) outside the combined body (104) is projected outside the scale plate (105) to detect the amount of fertilization based on the position of the pointer (104a). .

The transmission (79) is fixed to a base (105) fixed to the left outside of the left body frame (3), and an adjustment shaft (75) penetrates the upper portion of the transmission (79) in the left-right direction. A belt (88) from the handle (84) is provided on the left end side of (82), and a belt (96) for rotating the input shaft (80) is provided on the right end side of the adjustment shaft.

Further, an output shaft (81) projecting rearward of the transmission (79) faces the inside of the bevel case (106), and is connected to a first transmission shaft (107) projecting above the bevel case (106). The output shaft (81) is interlocked and connected via a safety clutch (108) and a pair of bevel gears (109), and a pair of bevel gears (111) in a bevel case (110) is connected to the feed input shaft (78). The second transmission shaft (112) is interlocked and connected via the universal joint shaft (113), and the first and second transmission shafts (107) and (112) are connected by the universal joint shaft (113) to deliver the transmission output of the transmission (79). Input shaft (7
It is configured to transmit the proper amount of fertilizer by transmitting to the feeding shaft (64) via 8).

The present embodiment is constructed as described above, and stops the operation of the rice transplanter, the planting section (15) and the fertilizer (3).
6) The output shaft (7) of the bearing case (72)
6) is in a non-rotating state, the clutch lever (9)
7) By disengaging the fertilizing clutch (83) by operation, the worm gear (92) and the wheel (93) mesh with each other, so that the speed change input shaft (80) and the adjustment shaft (82) are interlocked, and the adjustment handle At the time of the fertilizer application adjustment operation according to (84), the input shaft (80) also rotates at the same time, so that the transmission (79) such as the planetary cone of the transmission (79) can be smoothly shifted without damage.

When adjusting the amount of fertilization during normal work with the fertilizer application clutch (83) engaged, the engagement between the worm gear (92) and the worm wheel (93) is surely released, and the engine output is reduced. Is prevented from being transmitted to the adjustment shaft (82) and the handle (84), and the input shaft (80) is controlled by the engine output or the operating force from the handle (84) when the fertilizer amount is adjusted by rotating the handle (84). Good gear shifting of the transmission (79) while constantly rotating is performed.

[0026]

As is apparent from the above embodiments, the present invention relates to a drive shaft (6) for a feeding portion (38) of a fertilizer (36).
4) A clutch (83) for turning on / off the drive of the input shaft (80) of the transmission (79) by the engine output in the rice transplanter that transmits the engine output via the ring cone type transmission (79). When the clutch (83) is disengaged, the transmission (7) is provided separately from the engine output.
Since the power mechanism (84) for driving the input shaft of (9) is provided, when the machine is stopped other than during operation and the fertilizer (36)
Alternatively, even when the operation of the planting portion (15) is stopped or the like, the transmission (79) can be easily shifted without any trouble, thereby improving the work efficiency of the work of adjusting the amount of fertilizer. This can stably maintain the performance of the transmission (79) and improve durability.

Since the power mechanism (84) is linked to the shifting operation of the transmission (79) and the input shaft (80) is rotated during the shifting operation, the input shaft is rotated during the shifting operation of the transmission (79). (80) is also always in a rotating state to promote smooth shifting and improve the operability of the transmission (79).

Further, a clutch (83) is interposed between the transmission shaft (76) for transmitting the engine output to the input shaft (80) and the input shaft (80), and a speed change adjusting portion (79) of the transmission (79) is provided. 82) and a handle (84) for operating the coupling members (92) (9) when the clutch (83) is disengaged.
3) The clutch (83) is interlocked to the handle (84) via the handle (84), and the transmission (79) is operated by the handle (84).
And the input shaft (80) is rotated, so that the handle (84) is connected to the input shaft (80) only when the clutch (83) is disengaged, and the engine output is applied to the handle (84). In addition, it is possible to reliably prevent inconvenience such as transmission of the gears, and also to surely prevent erroneous operations such as performing a shift operation while the rotation of the input shaft (80) is stopped. It is possible to control the amount of fertilizer.

[Brief description of the drawings]

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

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

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

FIG. 4 is a rear view of the fertilizer applicator.

FIG. 5 is an explanatory sectional view of a feeding case portion.

FIG. 6 is an explanatory side view of the speed change drive unit.

FIG. 7 is an explanatory front view of a speed change drive unit.

FIG. 8 is an explanatory side view of the disengaged state of the clutch unit.

FIG. 9 is an explanatory diagram of an engaged state of a clutch unit.

FIG. 10 is an explanatory front view of a transmission unit.

FIG. 11 is an explanatory view of a handle stopper portion.

[Explanation of symbols]

 (36) Fertilizer (fertilizer) (38) Feeding case (feeding part) (64) Shaft (76) Output shaft (transmission shaft) (79) Transmission (80) Input shaft (83) Clutch (84) Handle ( (Power mechanism) (92) Worm gear (coupling member) (93) Worm wheel (coupling member)

Claims (3)

[Claims] 1. A rice transplanter in which an engine output is transmitted to a drive shaft of a feed section of a fertilizer applicator via a ring cone type transmission, a clutch for turning on / off the drive of the transmission input shaft by an engine output. A rice transplanter comprising a power mechanism for driving an input shaft of a transmission by a system different from an engine output when the clutch is disengaged. 2. The rice transplanter according to claim 1, wherein a power mechanism is interlocked with a shift operation of the transmission, and the input shaft is rotated during the shift operation. 3. A clutch is interposed between a transmission shaft for transmitting engine output to the input shaft and the input shaft, and a handle is provided for operating a shift adjusting portion of the transmission. The clutch is interlocked to the steering wheel via the steering wheel, so that the gearshift operation of the transmission and the rotation of the input shaft are performed by the steering wheel.
And the rice transplanter according to 2.