JPH0327202A - Rice transplanter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of Industry 7L] The present invention takes out seedlings from a seedling stand alternately as a pair of planting claws rotates and rotates a rotatable planting arm, and also arranges them in the same row. attached to the planting arm in a state for planting seedlings;
The present invention relates to a rice transplanter that is provided with a planting drive mechanism that drives the planting arm and the seedling platform so that the seedling platform reciprocates in the lateral direction of the machine body in conjunction with the seedling planting movement of the planting claw.

[Conventional technology]

- Conventionally, in a rice transplanter, a forest transmission device is provided between the planting drive mechanism and the power source that transmits the rotational force to the rice transplanter, and when the forest transmission device is switched, the planting arm moves while traveling the reference distance. The inter-plant transmission device is configured so that the interlocking relationship between the traveling device and the planting drive mechanism changes so that the driving rotation speed of the plant changes, and the seedling planting interval between the pair of planting claws changes. , the distance between planted seedlings in the direction of the aircraft's travel, so-called increase or decrease in the number of forest areas, was adjusted. That is, by changing the relationship between the running speed and the rotation speed of the planting arm, the forest area can be adjusted.

[The invention solves (7) Problems to be solved] Conventionally, in addition to the standard stock spacing of about 18 cm, 20 cm
In order to obtain the above wide plant spacing, the rotation speed of the planting arm during this wide plant spacing must be extremely low compared to the traveling speed, and the slower the arm rotation speed, the more the planting Since the claws spend a considerable amount of time in the mud, mud-scraping holes are formed near the planted seedlings by the planting claws scraping off the mud for movement as the aircraft travels. This made it easy for defects to occur.

An object of the present invention is to provide an El value machine that allows seedling planting work between a wide range of plants while making it difficult for L-rub to occur not only in terms of planting but also in terms of bacteria supply.

“1,000 Steps to Solve the Problems The IB transplanter according to the present invention has the following features:
In order to achieve a certain purpose, a switching means is provided for switching one of the pair of planting claws between an active state in which seedlings can be planted and a non-active state in which seedlings cannot be planted, and the rotating force from the power shaft is applied to the planting at a standard rotational speed. A first transmission state that can be freely switched between a standard transmission state in which the rotational force is transmitted to the drive mechanism and a deceleration transmission state in which the rotational force from the power source is reduced to a rotational speed of 1/2 of the standard rotational speed and transmitted to the planting drive mechanism. A variable speed transmission is provided, and a second variable speed transmission is provided in a portion of the arm drive mechanism that transmits power to the planting arm from a branch point where the input rotational force is branched to the seedling platform side and the planting arm side. , the second speed transmission includes a first interlocking mechanism that transmits the rotational force of the upper transmission rotating member to the lower transmission rotational member, and a first interlocking mechanism that transmits the rotational force of the upper transmission rotational member to the lower transmission side. Each of the second interlocking mechanisms that makes the rotational speed of the lower transmission side rotating member twice the rotational speed when power is transmitted by the i-th interlocking mechanism with ε transmitted to the rotating member can be freely switched between a transmission state and a non-transmission state. a first operating state in which the first interlocking mechanism is in a transmission state and the second interlocking mechanism in a non-transmission state; and a first operating state in which the first interlocking mechanism is in a non-transmission state and the second interlocking mechanism is in a transmission state. A speed change operation mechanism that switches between two operating states is provided in a state that switches from one of the first operating state and the second operating state to the other while both the first interlocking mechanism and the second interlocking mechanism are in the interlocking state. There is. The functions and effects thereof are as follows.

[For production]

When the switching means is used to switch one of the planting claws to the working state, the first speed transmission to the standard transmission state, and the speed change operation mechanism to the first working state, respectively, either manually or automatically. The rotational force from the power source is transmitted to the planting drive mechanism at a standard rotational speed, and the power is also transmitted to the planting arm by the first interlocking mechanism. That is, the seedling platform is reciprocated so that both of the pair of planting claws act and a predetermined amount of seedlings are supplied to each planting claw, so that seedlings can be planted using either of the planting claws. Then, the variable speed transmission, the planting drive mechanism, and the first interlocking mechanism are configured so that the forest area in this case has a standard plant spacing, and the planting arm drive speed is such that mud digging holes by the planting claws are unlikely to occur. . Then, one of the planted nails is switched to the inactive state,
When the speed change transmission device is switched to the deceleration transmission state and the speed change operation mechanism is switched manually or automatically to the second operating state, the rotational force from the power source is reduced to half the rotational speed of the standard speed. The seedling loading platform is transferred back and forth at 1/2 the speed of standard plant spacing, and the rotational force introduced at 1/2 speed of the planting drive mechanism is transmitted to the planting drive mechanism.
The interlocking mechanism doubles the speed and transmits it to the planting arm, so that the planting arm is driven at the same rotational speed as during standard plant spacing.

In other words, only one planting claw moves the seedlings at the same speed as the standard plant spacing, and even though only one planting claw takes out the seedlings, this planting claw takes out the same amount of seedlings as the standard plant spacing. The bacteria mounting table supplies the seedlings in such a way that the seedlings are taken out at the same amount as the standard seedling time, and the seedlings are taken out continuously from the side of the seedlings (one end side) so that no residue is left behind. Seedlings are planted at ground speed and at twice the standard spacing.

When the speed change operation mechanism is switched from one of the first operating state and the second operating state to the other, both interlocking mechanisms are brought into the interlocking state to prevent the seedling mounting stand and the planting arm from becoming uninterlocked. In other words, when both the first and second interlocking mechanisms go through a state in which they are not interlocked, the seedlings may not be placed due to shifts in the center of gravity of the seedling platform or rotation of the planting arm due to its own weight. The rotational member on the table side and the rotational member on the planting arm side rotate relative to each other, which may cause interlocking positional deviation between the bacteria mounting table and the planting arm, but according to the speed change operation mechanism, this interlocking However, it is possible to switch the interlocking between the first interlocking mechanism and the second interlocking mechanism so as not to cause misalignment problems.

〔Effect of the invention〕

It is now possible not only to plant seedlings between standard plants, but also to plant in twice the wide space between standard plants (7). It is now possible to prevent the formation of mud-scraping holes, while also preventing the interlocking of the seedling stand and planting arm from occurring due to changes in the stand area. Planting work can now be carried out with high precision and less chance of improper planting posture or missing plants.

〔Example〕

Next, examples will be shown.

As shown in Figure 1l, a link mechanism (2
) to connect the seedling planting device (A) so that it can be raised and lowered, and the seedling planting device (A) can be raised and lowered by swinging the link mechanism (2) by the hydraulic cylinder (3). Accordingly, a riding type rice transplanter is constructed.

The seedling planting device (A) includes a plurality of planting case portions (4a) arranged in parallel in the transverse direction of the transmission case (4) forming the body of the planting device. As shown in the figure, a pair of planted nails (5). (5) is attached to the transmission case planting arm (6) via the rotating support shaft (7).
7. Attach the lever so that it rotates around the axis, and move the seedling stand (8) to the front end side of the transmission case (4) in the lateral direction of the machine via the seedling stand transverse feed shaft (9). The planting arm (6) is slidably attached to the transmission case (4), and the planting drive mechanism (10), which is the interior 1-, rotates the rotational shaft (7), so that the planting arm (6) is rotationally driven. Composed of [7
, and as the planting arm (6) rotates, a gear mechanism (11) built into the planting arm (6) causes a pair of claw supports (12). (12) Each cylinder support shaft (13)
A pair of planting claws (5), (
5) Each planter arm (
6), and furthermore, the planting drive mechanism (10) reciprocates the seedling platform transverse feed shaft (9) in conjunction with the drive of the co-rotating support shaft (7). By driving, the seedling platform (5) is linked to the seedling planting movement of the planting claw (5)
8) is configured to move back and forth in the lateral direction of the machine, as the planting arm (6) is rotationally driven, the pair of planting claws (5), (5) rotate on their own axis. While rotating vertically around the axis of the support shaft (7), one block of seedlings is cut and taken out from the maple-shaped seedlings placed on the seedling platform (8), and conveyed downward. ｜It is planned to be planted in the field.

As shown in FIG. 1, a first speed change transmission (15) configured so that the rotational output of the engine (E) is transmitted through a traveling transmission (14), and this first speed change transmission. The transmission case (17) of the traveling aircraft is connected to the transmission unit (16) configured to transmit the rotational output of the device (15).
and the rotational output of the forest transmission (l6) is connected to the safety clutch (ci) as shown in Fig. 3, the planting clutch (C,), the power take-off shaft (l8), and the rotational output as shown in Fig. 11. The seedling planting device (A) is configured to be transmitted to the planting drive mechanism (10) via the shaft (19).
) can be driven.

As shown in FIGS. 3 and 4, the first speed transmission (15) has a speed change chamber that can be opened and closed by the main body of the mission case (17) and a detachable side cover (20). The rotating shaft of the traveling transmission (14) (
14a) so as to be selectively and removably fitted onto the end of the rotary shaft (14a), and to rotate together with the rotary shaft (lJa) due to the non-circular shape of the rotary shaft end. The first manpower side gear (15a) and the second manpower side gear (15b) are selectively and removably fitted onto the end of the manpower shaft (16a) of the forest transmission (l6), and The first output gear (15c) and the second output gear (15d) are configured to rotate together with the input shaft (16a) in order to secure the input shaft end due to its non-circular shape. Along with the structure,
The first manual gear (15a) and the second output gear (15c)
) is installed, the rotational force of the rotating shaft (14a) is transferred to the manual shaft (16a) by the engagement of both gears (15a) and (15c).
) so that the rotational force from the power source and the traveling transmission (14) at 12 is transmitted to the planting drive mechanism (10) via the inter-plant transmission (16) etc. at the standard rotational speed. It is configured to be in a standard transmission state. Then, the second human power side gear (15b) and the second output side gear (15b)
5d), both gears (15b). (15d)
The rotational force of the rotating shaft (14a) is transferred to the human power shaft (1
6a) and both gears (15b), (15
d) and the first gear (15a) and (15e)
), the rotational force from the traveling transmission (14) is reduced to the standard rotational speed of 172° and transmitted through the interplant transmission (16) etc. to the planting drive mechanism (10). ) is configured to be in a 1/2 deceleration transmission state.

As shown in FIG. 3, the forest transmission (16) is configured by a shift gear (16e) attached to the output shaft (16b) so as to slide and rotate integrally with the output shaft (16b) through spline engagement. The sliding operation (~
By engaging the shift gear (16e) with the first manual shaft gear (16d), a high speed transmission state is achieved, and by engaging the shift gear (16e) with the second manual shaft gear (6e), a medium speed transmission state is achieved. and shift 1 gear (l6
) is engaged with the third person key gear (16f) to achieve a low speed transmission state.

In other words, the first speed change transmission device (15) and the forest speed change device (
16), the number of rotations at which the planting arm (6) is driven and rotated while the traveling body travels the reference distance, and the stroke at which the seedling platform (8) is transferred can be changed. is set to change.

To configure the planting drive mechanism (10), as shown in FIG. Power is transmitted by a bevel gear mechanism to a branch transmission shaft (23) which also serves as the drive shaft of the vertical seedling feed cam (22), and power is transmitted from the branch transmission shaft (23) to the seedling platform side. A transverse feed mechanism (24) for the seedling platform is provided, and a branch transmission shaft (23) is provided.
An arm drive mechanism part is provided for transmitting power from the plant to all the planting arms (6) through a transmission chain (25) or the like.

As shown in Fig. 5, the transverse feeding mechanism (24) of the seedling platform is configured by transferring the rotational force of the branch transmission shaft (23) to a shift gear (24).
By rotationally driving the sleeve sleeve (28) by transmitting the signal to the shaft sleeve drive gear (27) via the shaft (26), the feed tool (29) that engages with the spiral groove of the transverse feed shaft (9) of the seedling table is rotated. The sleeve drive gear (27) of the shift gear (26) is dynamically driven to reciprocate and slide the seedling table transverse feed shaft (9).
By switching the occlusion to the seedling platform, the lateral feed speed of the seedling platform (8) can be easily changed so that the amount of seedlings removed by the planting claw (5) in the lateral direction of the seedling platform can be changed.

5 and 6 in configuring the arm drive mechanism part.
As shown in the figure, the rotational force of the branch transmission shaft (23) is transmitted to the intermediate transmission shaft (30) by the transmission chain (25), and all the planting case parts (4a) and
In each of the above, the same power of the intermediate transmission shaft (30) is transmitted to the fractional row planting clutch (C3) and the second speed change transmission (
31) to the planting 1'j arm (6). As shown in FIGS. 5 and 6, the second speed transmission device (31) includes a first transmission chain (32) and a first chain sprocket (33).
) by a certain first interlocking mechanism (34), or by a second transmission chain (35) and a second chain sprocket l-(
The second interlocking mechanism (37) consisting of
The first interlocking mechanism (34) is configured to transmit data to the first interlocking mechanism (34) by an engagement clutch member (39) attached to the rotational support shaft (7) so as to integrally rotate and slide by spline engagement. The speed is changed by switching the second interlocking mechanism (37) between a transmission state and a non-transmission state. That is, the bite clutch portion +,t (39) is slidably operated by an artificial gear changer (not shown) located outside the planting case portion (4a), and as shown in FIG.
When the first subrocket (33) is operated to the first connecting position in which the boss portion (33a), which is rotatable relative to the quadrilateral support shaft (7), and the rotation support shaft (7) are interlocked and connected only, the The first interlocking mechanism (34) is configured to be in a standard transmission state such that it is in a transmission state and transmits the rotational force of the output sleeve (38) to the rotation support shaft (7). (7) As shown in FIG.
The occlusal connection ( 7
When operated to the second connection position, the second interlocking mechanism (37) enters the transmission state and transmits the rotational force of the output cylinder shaft (38) to the rotation support shaft (7), and also connects the first chain sprocket (3
3) and the second chain sprocket (36), the rotational speed of the rotating shaft (7) is set to double the rotational speed when power is transmitted by the first interlocking mechanism (34). It is configured to be.

In other words, even if the first speed transmission (15) is switched to the deceleration transmission state, the second speed transmission (31) is switched to the double speed transmission state so that the same rotational speed of the planting arm (6) does not change. It is set as.

As shown in Fig. 6, the claw support (l2) is fixed to the cylinder support shaft (l3) (by removing the two lock pins (40), the claw support (12) is attached to the cylinder support shaft (13). It is constructed so that it can be attached and detached, and one of the nail supports (l
By attaching and detaching 2), one of the planting claws (5) can be attached to the planting arm (6) so that seedlings can be planted as shown in Figure 6.
It is configured so that it can be switched between an operative state in which it is attached to the planting arm (6) and a non-operative state in which it is removed from the planting arm (6) so that seedlings cannot be planted as shown in FIG. That is, the number of planting claws on the planting arm (6) that can be used to plant seedlings can be switched between one and two.

In short, as shown in FIG. 2, the number of planting claws on the planting arm (6) is set to two, and the first transmission
) and the second transmission endo device (3I) to the standard transmission state, the forest becomes the standard transmission (L) as shown in Fig. 9, and then the inter-plant transmission (l6) is switched. By doing this, the standard spacing (L) is approximately 12
, 16 and 18 cm.

Then, the number of planting claws on the planting arm (6) is changed to one, the first variable speed transmission (15) is placed in a 1/2 speed reduction transmission state, and the second speed transmission device (31) is placed in a double speed transmission state. As shown in Figure 1O, the distance between the plants becomes wide (21,), which is twice the width of the standard space (1,).
Then, by switching the inter-plant transmission (16), the Hirorin-kan (2L) can be changed to 3 cm (approximately 24, 32, and 36 cm).
It is designed to transform into a seed.

a sliding direction dimension of the biting clutch member (39), and
By setting the interval between the boss portions (33a) and (36a), as shown in FIG. It is configured to be occlusally connected to both t-(33) and (36). That is, when switching the second speed transmission (31), the engagement clutch member (3
Before the chain sprockets L-9) come off from one of the chain sprockets L-(33) and (36), start the interlocking connection with the other, and move the planting arm (6) and seedling stand (8) between them. It is designed to slide while maintaining the interlocking state to prevent this from occurring.

[Another example]

FIG. 12 shows another implementation structure for making it possible to adjust the speed of the planting arm (6). 30) between all the planting arms (6)...
The configuration is such that the speed control for the two speeds can be performed at once by switching one second speed change transmission (31).

Further, the second speed change transmission device (31) may be configured with the biting clutch member disposed on the upper side of the transmission, or may be configured in a gear type. Therefore, the output cylinder shaft (38) is referred to as the "transmission" second hand side rotating member (38), and the rotation support shaft (7)
is referred to as the lower transmission side rotating member (7), the first chain sprocket (33) is referred to as the first wheel body (33), and the second chain sprocket (36) is referred to as the second wheel body (36). Furthermore, while the clutch member is disengaged from either subrocket during the shifting process, the locking mechanism that connects both subrockets and the rotating support shaft (7) so that they cannot rotate relative to each other operates only during the shifting process. A mechanism may be constructed and implemented.

In order to make it possible to switch between the operative state and the non-operative state of the planting claw (5), a means for attaching and detaching only the planting claw (5) is adopted instead of a means for attaching and detaching the claw support (12). Good too. Therefore, the locking pin (4o) is referred to as switching means (40).

The forest shift (16) may be omitted (7).

In order to enable operation of the second transmission (31), the first
As shown in Fig. 3, a toggle spring (42) is connected to the shift 1 knob (41), and this toggle spring (42) moves the shift lever (41) and shifter (4l) as the shift lever (4l) swings. 43) between an operating state in which the clutch member (39) is slidably biased to the first connection position and an operating state in which the clutch member (39) is slidably biased to the second connection position. The clutch member (
39), and as the clutch member (39) rotates, the clutch member (39)
9) and chain sprocket (33) or (36) match, 1. Glue spring (42)
) The gear shifting operation may be facilitated so that the two automatically engage with each other due to the biasing force.

Incidentally, although reference numerals are written in the claims section for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the rice transplanter according to the present invention, and FIG. 1 is a block diagram, FIG. 2 is an explanatory diagram of changing forest areas, and FIGS. 3 and 4.
The figure is a sectional view of the first variable speed transmission, FIG. 5 is a sectional view of the transverse feed mechanism of the seedling platform, FIGS. FIG. 10 is an explanatory diagram of the space between plants, FIG. 11 is a side view of the entire riding rice transplanter, FIG. 12 is a block diagram of another implementation transmission structure, and FIG. 13 is a schematic diagram of the speed change operation section. (5)... Planting claw, (6)... Planting arm, (7)... Transmission lower side rotating member, (8
)... Seedling mounting stand, (10)... Planting drive mechanism, (15)... First variable speed transmission, (
31)... Second speed transmission, (33)...
...first wheel body, (34>...first interlocking mechanism,
(36)...Second wheel body, (37)...
Second interlocking mechanism, (38)... Upper transmission rotating member, (39)... Clutch member, (40)...
...Switching means.

Claims (1)

[Claims] 1. Driving a pair of planting claws (5), (5) to alternately take out seedlings from a seedling stand (8) as the rotatable planting arm (6) rotates. It is attached to the planting arm (6) in a state where seedlings are planted in the same row, and the seedling platform (8) is moved back and forth in the lateral direction of the machine in conjunction with the seedling planting movement of the planting claw (5). A rice transplanter that is provided with a planting drive mechanism (10) that drives a planting arm (6) and the seedling mounting table (8), and is capable of planting seedlings using one of the pair of planting claws (5), (5). A standard transmission state in which the rotational force from the power source (14) is transmitted to the planting drive mechanism (10) at a standard rotational speed; A first variable speed transmission device (1) that can be freely switched to a deceleration transmission state in which the rotational force from the power source (14) is reduced to a rotational speed of 1/2 of the standard rotational speed and transmitted to the planting drive mechanism (10). 15), and a second speed change is provided in the arm drive mechanism portion of the planting drive mechanism (10) where the input rotational force is transmitted to the planting arm (6) from a branch point where the input rotational force is branched to the seedling mounting table side and the planting arm side. A transmission device (31) is provided, and the second speed change transmission device (31) includes a first interlocking mechanism that transmits the rotational force of the transmission upper rotation member (38) to the transmission lower rotation member (7). (34), and the transmission upper rotating member (38)
transmits the rotational force to the lower transmission rotating member (7), and makes the rotational speed of the lower transmission rotating member (7) twice the rotational speed when power is transmitted by the first interlocking mechanism (34). Each of the second interlocking mechanisms (37) is provided so as to be switchable between a transmission state and a non-transmission state, and a first interlocking mechanism (37) is configured to set the first interlocking mechanism (34) in a transmission state and the second interlocking mechanism (37) in a non-transmission state. an operating state, and a second state in which the first interlocking mechanism (34) is in a non-transmission state and the second interlocking mechanism (37) is in a transmission state.
The first interlocking mechanism (
34) and the second interlocking mechanism (37) are both in the interlocking state, and the rice transplanter is provided in such a manner that it can be switched from one of the first operating state and the second operating state to the other. 2. The speed change operation mechanism includes a first wheel body (33) that constitutes the first interlocking mechanism (34) and a second wheel body (36) that constitutes the second interlocking mechanism (37). An engaging clutch member (39) is slidably provided therebetween, and engages only the first wheel body (33) of the first wheel body (33) and the second wheel body (36). A first connecting position where only the first interlocking mechanism (34) is in an interlocking state, and only the second wheel body (36) of the first wheel body (33) and the second wheel body (36). The first wheel body ( 3. The rice transplanter according to claim 1, wherein the engaging clutch member (39) is formed so as to engage with both the second wheel (36) and the second wheel (36).