JPS61135512A - Power transmission of two-row seedling planter - 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 Industrial Application) This invention relates to a power transmission device for transmitting the seedling planting tool of a rice transplanter. This invention relates to a power transmission device in which a plurality of seedling planting tools circulate and act on the seedling dividing opening on the side of a seedling tank to perform seedling planting in order to speed up the planting work.

(Prior Art) Conventionally, as seen in Japanese Unexamined Patent Publication No. 52-69724,
In some multi-row rice transplanters that divide and plant seedlings from a plurality of seedling tanks, each seedling planting tool is disconnected at once by operating a fixed position stop clutch. When each of the seedling planting tools stopped at a desired fixed position, there were some that stopped with the seedling dividing opening sandwiched between the left and right seedling planting tools when viewed from the side, but this fixed position The seedling planting tool whose power transmission was turned off by the stop clutch was a single seedling planting tool for the seedling dividing opening of the seedling tank.

Conventionally, all fixed-position stops and clutches for stopping the seedling planting tool at a fixed position have a structure in which the clutch is disengaged or engaged at a single point during rotation. In addition, conventionally, a seedling container has a structure in which a plurality of seedling planting tools circulate and act on one seedling dividing opening of the container, as disclosed in, for example, Japanese Patent Publication No. 17806/1983. However, even such high-speed rice transplanters for planting seedlings had a configuration in which the transmission rotation was cut off only at one point during rotation.

Furthermore, there is a conventionally known device that stops the seedling planting tool for each planting row, but in this method, multiple seedling planting devices act on one seedling splitting opening and seedlings can be planted at high speed. The ones that were constructed to obtain this were designed so that the transmission could only be stopped at one point during rotation.

(Problems to be Solved by the Invention) In the conventional technology, even if the fixed position stop clutch is operated 1 time and 1 time, the problem is that the stop occurs only after several seedlings have been planted before stopping. If the seedling planting clutch is turned off and the turning operation is performed at the same time, the planted seedling rows may become distorted or the seedlings may scatter outwards, making it impossible to properly plant the seedlings. In addition, a one-passenger type rice transplanter has a problem in that floating seedlings occur when the rice transplanter section is raised at the same time as the clutch is released.

(Means for Solving the Problems) In order to solve the problems of the prior art, the first invention took the following technical measures.

That is, seedling tanks (19a) and (1
9b) Seedling planting tool (34) for dividing and planting seedlings from...
), (34) -... are the seedling dividing openings (21a) of each seedling tank.
Fist (21 b) ...Constructed into a seedling planting device in which at least two or more of them circulate around ψ, and each seedling dividing opening (2
The power transmission of the seedling planting tool groups (A), (B), (C), CD), and (E) corresponding to 1a) and (21 b)--- is from a single drive shaft (43). In the transmission structure of the seedling planting device which is separated into at least two lines, the power transmission of all the seedling planting device groups (A) to (E) is set to “ON” and “ON”.
The main seedling planting clutch (45) to be cut 1 is configured as a fixed position stopping type clutch, and this fixed position stopping position corresponds to the number of seedling planting tools corresponding to a single seedling dividing opening. A power transmission device for a multi-row type seedling planting device is configured.

In addition, the second invention is a seedling planting tool (34), (34), which divides and plants seedlings from seedling tanks (19a), (19b), etc., which are arranged side by side in the left and right directions. The seedling planting device is configured such that at least two or more of them circulate around the seedling dividing openings (21a), (21b), etc. of each seedling tank, and each seedling dividing opening (21a), (21 b) Seedling planting equipment groups corresponding to the group (A), (B), (C), (D),
In the transmission configuration of the seedling planting device in which the power transmission of (E) is provided in at least two separate systems from a single drive shaft (43) section, all of the seedling planting tool groups (A) to (E ), the main seedling planting clutch (45) is configured as a fixed position stop type clutch, and this fixed position stop position corresponds to a single seedling dividing opening. Seedling planting tools groups (A) to (E) are configured to correspond to the number of tools.
) or more for each group using a single seedling planting clutch (56) that stops at a fixed position.
, R-cut 1, and the fixed position stop of this clutch (56) corresponds to the number of seedling planting tools corresponding to a single seedling dividing opening. The structure of the transmission device was adopted.

(Example) First, an example of the first invention will be described based on FIGS. 1 to 5.

(1) is a passenger towing vehicle, (2) is a pair of left and right front wheels, (3) is a pair of left and right rear wheels, (4) is an engine, and (5) is a passenger tow vehicle.
is the control seat, and (6) is the control handle. (7) is the control frame, and (8) is the main transmission case. Power is transmitted from the engine (4) to the internal transmission, and from there the front wheels (2) and rear wheels (3) are driven by the drive shafts (9) and ( 10), the PTO shaft (11) and the transmission shaft (12)
It is provided so that power is transmitted to the rice transplanter (13) section to be described later.

(14) is a planting clutch lever, and the main seedling planting clutch, which will be described later, is operated "on" and "yJJ" by this lever.

(15) is the lifting link mechanism, and the hydraulic cylinder device (1
6) and is moved up and down on a pitch (17).

(18) is a planting transmission case, which is attached to the pitch (17).

(19) is a seedling tank, which is tilted and supported above the planting transmission case (ta) so that the front side faces upward, and is moved left and right by the left and right reciprocating lateral movement device in the planting transmission case (18). It is provided. And this seedling tank (
19) is a partition body (20)-(20)... in the left and right lateral force directions.
・Separated into specified widths by ・Multiple seedling tanks (
19a), (19b), (19c), (19d) fist (1
9e).

(21) is a seedling receiving plate, which is provided in a substantially L-shape when viewed from the side, and extends long in the horizontal direction along the lower end side of the seedling tank (19); , each seedling tank (19
Seedling dividing opening (21a) where seedlings of a) to (19e) can be divided
-(21b)-(21c) Ho (21d) ・(21e
) are drilled.

(22a) −(22b) +1 (22c)
- (22d) and (22e) are rotating cases, and longitudinal transmission cases (18a) and (18b) that protrude and branch rearward from the planting transmission case (18) at a predetermined interval in the left and right direction.
・On the rear end side of (18c), the front and rear middle part is the planting shaft (23
) is wedged by

(24) is a gear wedged to the planting shaft (23), (
25) and (26) are counter gears, and (27) is an input sprocket.

(28) is a metal wheel holder, and vertical transmission case (18a).
(18b) is fixed to the outer side of number (18c) and bears the planting shaft (23) via a bearing, and the outer end hole (2Jla) into which this shaft (23) is inserted is connected to the shaft ( 23
).

(29) is a sun gear, which is inserted into the hole (28a) of the bearing metal (28) and is provided integrally with the boss part which is prevented from rotating, and this gear (29) is connected to the drive shaft (
The gear is eccentric to 23).

(30) to (30) are counter planetary gears, which are always engaged with the sun gear (29) rotatably supported within the rotating cases (22a) to (22e).

(31) is a planetary gear, and the rotating case (22&)~
(22e) and meshes with the counter planetary gears (30) and (30). One end side of the bearing boss portion (31a) of this planetary gear (31) protrudes outward from the rotating case, and furthermore, this boss portion (
The shaft core part 31a) is hollow so that the shaft can be inserted therethrough.

(32) is a camshaft that is inserted into the hole of the bearing boss (31a) and has one end attached to the rotating cases (22a) to (22e).
) is fixed with a rotation stopper plate (33) on the inside and outside of the bearing boss part (31a), and the other end protrudes outward beyond the bearing boss part (31a).

(34) is a seedling planting tool, including a planting case (35) and a cam (3
6), interlocking rod (37), extrusion body (38) and seedling separation claw (
39) etc. And this planting case (3
5) is a boss portion (31) that is integrated with the planetary gear (31).
It is fitted onto the outer periphery of the boss part (31a) so that it can be moved and fixed to some extent in the axial direction of the boss using a knock pin (40), and is provided so that it can rotate integrally with this boss part (31a) when attached.

The cam (36) is rotatably received by the rotating case (35) integrally with the cam shaft (32), and the base side is supported by the cam (36).
It is provided as a membrane island around the outer periphery, and the tip side is formed into a fork shape.

(3B) is an extruded body, which is supported on the tip side of the planting case (35) so as to be able to slide vertically, and its lower end protrudes outside the case.
The outer periphery of the upper end portion is partially cut into an oval shape, and the tip fork portion of the interlocking rod (37) is engaged therewith. (42) is a spring.

The seedling separation claw (39) is an n-shaped claw when viewed from the front,
It is detachably attached to the tip of the planting case (35).

As mentioned above, the seedling planting tool is equipped with rotating cases (22a) to (22e).
) are attached to any one of the two plants, and are operated by rotating the crank while drawing a long planting trajectory (a) in the vertical direction when viewed from the side. Then, two seedling planting tools installed in a single rotating case are made into one group,
In the illustrated example, it is made up of groups of seedling planting tools (A), CB), (C), CD), and (E).

(43) is a drive shaft, which is extended horizontally and installed in the planting transmission case (18) so as to be transmitted and rotated, and is installed at the base of the vertical transmission case (18a), (18b), and (18c). is the drive sprocket (44), (44), (4
4) is fixed and connected to the input sprocket via the chain
Rotate (27) and (27)... to plant WA drive shaft 2
3) The side is provided to transmit power.

(45) is a main seedling planting clutch, in which a drive clutch gear (46) with a clutch pawl that is transmitted and rotated from the prime mover side is freely rotatably attached to a drive shaft (43), and a clutch is attached to this drive clutch gear (46). Claw and fixed position stop cam (47a)
A driven clutch body (47) with a drive shaft (43) is wedged and movably provided, and is elastically engaged toward the drive clutch gear (46) by a spring (48). The clutch pin (49) is slidably provided on 18) and is detachably provided on the fixed position stop cam (47a), and when the pin (49) is brought into contact with the cam surface (b), the rotation starts. The driven clutch body (47) receives the force and resists the spring (48).
) is configured so that the escape clutch pawl disengages and the rotation of the drive shaft (43) stops. In the example shown in the figure, the number of fixed position stop cams (47L) is divided into two parts on the outer peripheral surface of the rotation case (22a), (22b), and the seedling planting tool (22b), which is attached to one of the fists. 34).

It goes without saying that if three (1) seedling planting tools (34) are provided in the rotating case, the number of fixed position stop cams (47a) will be three.

(50) is a clutch wire that connects the planted clutch lever (14) and the clutch pin (49).

In the illustrated example, the main planting clutch (45) is installed inside the planting transmission case (18), but this is installed in the main planting case (
8) PT installed inside to transmit power to the rice transplanter (13) side
Of course, it is also possible to adopt a configuration in which the rotation of the O-axis (11) is stopped at a fixed position.

In the figure, (51) is a center leveling float, and (52) is a leveling float on both left and right sides.

To explain the function of the upper side, each seedling tank (19a) to (1
When the seedlings are placed on the rice transplanter (9e) and each part is rotated by the engine (4), the passenger tractor (1) is propelled by the rotation of the front wheels (2) and the rear wheels (3), and the rice transplanter (13)
The load is partially received by the ground leveling floats (51) and (52) and pulled, and the PTO shaft (11) is moved from the power transmission shaft (
12), power is transmitted from the main transmission case (8) to the input shaft in the planting transmission case (1B). Then, the drive shaft (43) is transmitted and rotated via the main planting clutch (45), and from this drive shaft (43), the planting shafts (23), (23)... is rotated. Then, each rotating case (22a) to (22
e) rotates, and as a result of this rotation, the counter planetary gears (30) (30) are planetarily rotated around the sun gear (29), and the planetary gears (31) (31) meshing with this rotate.
) will be rotated. Therefore, the planetary gear (
31) @ Planting case (35) fixed integrally to (31)
) are rotated relative to the rotating cases (22a) to (22e), and the camshafts (32) and (32), which are integrated with the rotating cases (2Za) to (22e), are naturally rotated by the gear (31). Since there is no cam attached to this camshaft (
36), the planting case (35) will be rotated. Therefore, the interlocking rod (37) swings by the cam (36), and the extrusion body (38) moves up and down.

Then, the separation claw (
The tip side of 39) operates in a planting trajectory (a), and successively intervenes from above into the seedling dividing openings (21a) to (21e) of the bacteria receiving plate (21), reciprocating from side to side. (19a
) to (1'9e) are divided into individual plants and planted in the field area that has been ffi-ground in (51) and (52), that is, the seedling extruder (38) is planted. Comes with case (35
), when the seedlings are separated from the seedling tank and plunged into the field, the cam (36) and a part of the cam floor of the interlocking rod (37) come off and the spring (42) This causes the seedlings to be rapidly pushed into the soil.

In this embodiment, since two seedling planting tools (34) are attached to the rotating case (35), seedling planting can be performed at high speed.

When you next stop planting seedlings, such as when turning, operate the planting clutch lever (14) and use the wire (
50), push the clutch pin (49) into contact with the cam surface (B) of the fixed position stop cam (, 47a) of the driven clutch body (47). Then, the driven clutch body (47) It moves against the cover spring (48) and moves from the clutch pawl of the driving clutch gear (46) to the driven clutch body (47).
) is disengaged, and the rotation of the drive shaft (43) stops at that position.

At this time, since the fixed position stop cams (47a) are provided in a number corresponding to the number of seedling planting tools (34) attached to one rotation case (35), the planting clutch lever (
14) to the stop side, the seedling planting tool (
34) is stopped and two seedling planting tools (34) are attached to one rotating case (35).
An unexpected situation such as the seedling planting tool (34) dividing and planting seedlings from the seedling tank after the stop operation is applied does not occur.

Next, the embodiment of the f5-2nd invention will be explained with reference to Figs. 1 to 5, and Figs. 6 and 7. Figs. 1 to 5 are the same except for the following structural parts. Therefore, the explanation will be omitted. That is, as shown in FIG. 6, this second invention has longitudinal transmission cases (18a), (18b),
The planting shaft (23) installed at the rear end of ) is divided into left and right parts (23a)-(23b).
)-(23b) are connected by an intermediate pin shaft which is inserted into the shaft center of the planting shaft and is freely rotatable, and a clutch 7' chispro-clutch 1- which has a single clutch pawl on the left and right in the same phase is attached to this. (5
3).

Then, on the left and right planting shafts (23a) and (23b) of the clutch sprockets (53) and (7), there are driven clutch bodies (54) having the same structure as the main seedling planting clutch (45).
・(55) is installed and the secondary seedling planting latch (56)・(56
).

(57a) and (57b) are subplant clutch pins.

And this sub-planting clutch pin (57a) @ (57
b) @ @ @ indicates five ridge clutch levers (58a) and (5
8b) ・Fist ・Wire (59) 1. In addition, fixed position stop cams (54a), (54a), (55a), (55) provided on the driven clutch bodies (54) to (55) of this secondary seedling planting clutch (56)
a) is 2 in the same way as the main/seedling planting clutch (45) above.
There are several.

To explain the function of the structure of the clay figure, in general, when planting all the planting rows on the ridge, when the rice transplanter digs out of the field or there is some unplanted rice, the final planting At the beginning of the process, planting some rows is stopped to ensure that there are no unplanted plants.

That is, the ridge clutch levers (58a), (58b)...
・In order to stop some of the seedling planting rows near the ridge, operate the appropriate ridge clutch lever and push in the sub-planting clutch bins (57a), (57b)... Then, in the same way as the main planting clutch (45) described above, the sub-seedling planting clutch (56) is set to 1-disengagement at the fixed position, and the rotating case (22a) of the seedling planting tool (34) is opened. (2
2b)... will be stopped and planting can be stopped.

At this time, the secondary seedling planting clutch (56) is also provided with the same number of fixed position stop positions as the main seedling planting clutch (45) as the seedling planting tools (34) attached to the rotating case. Therefore, the rotation of the seedling planting tool (34) is stopped almost at the same time as the auxiliary seedling planting clutch (56) is disconnected, and the seedlings can be divided and planted from the seedling tank after the stop operation. Avoid unexpected situations such as being put away.

In addition, regarding the position of rvJJ of the main seedling planting clutch (45) or the auxiliary seedling planting clutch (56), each seedling planting tool (34) of the rotating case (22a), (22b)...
・If you set the engagement of the transmission gear and the engagement of the sprocket and chain so that (34) stops after dividing the seedlings and planting them on the soil surface, you can operate those clutches to start the planting. This is extremely effective as seedlings are not scattered in the field when stopped.

(Operation and Effect) Although high-speed seedling planting is possible in the first invention, when the main seedling planting clutch is disengaged, all the seedling planting tools are immediately stopped and the clutches cannot be disengaged. It is possible to prevent the situation where the seedlings are divided and planted from the seedling tank after the seedlings are separated, and especially when the clutch is in one position per rotation as in the past, If you do not wait until the planting area is raised, the seedlings will be split while the planting area is being raised, causing the seedlings to be scattered, but this can be prevented.

The second invention is that in the case of fractional row planting, when the auxiliary seedling planting clutch is disengaged with an appropriate ridge clutch lever, even though it is immediately disengaged at the fixed position and the ridge clutch is disengaged. First, it has the effect of preventing a situation where one or two seedlings are planted there.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view of the main part, Fig. 3 is a simplified perspective view of the transmission mechanism, and Fig. 4 is the main part. 5 is a plan sectional view of the main part, FIG. 6 is a partially cutaway plan view of the main part, and FIG. 7 is a simplified slope view of the transmission mechanism. Symbols (19a) to (19e) in the figure are seedling tanks, (2
1a) to (21e) are seedling dividing openings, (34) is a seedling planting tool,
(43) is the drive shaft, (45) is the main seedling planting clutch, (5
6) shows a subsidiary seedling planting clutch, and (A) to (E) show a seedling planting tool group.

Claims (1)

[Scope of Claims] [1] Seedling tanks (19a) and (1) installed in parallel in the left and right directions.
9b) Seedling planting tool (34) for dividing and planting seedlings from...
), (34)... are the seedling dividing openings (21a) of each seedling tank.
- (21b) constituted as a seedling planting device in which at least two or more plants circulate around each of the seedling dividing ports (21a).
・(21b) Seedling planting tool group (A) corresponding to...
- In a transmission configuration of a seedling planting device in which the power transmission of (B), (C), (D), and (E) is provided in at least two separate systems from a single drive shaft (43), The main seedling planting clutch (45) that turns on and off the power transmission of all the seedling planting tool groups (A) to (E) is configured as a fixed position stop type clutch, and this fixed position stop position A power transmission device for a multi-row type seedling planting device configured such that the number of seedling planting tools corresponds to the number of seedling planting tools corresponding to a single seedling dividing opening. [2] Seedling tanks (19a) and (1
9b) Seedling planting tool (34) for dividing and planting seedlings from...
), (34)... are the seedling dividing openings (21a) of each seedling tank.
- (21b) constituted as a seedling planting device in which at least two or more plants circulate around each of the seedling dividing ports (21a).
・(21b) Seedling planting tool group (A) corresponding to...
- In a transmission configuration of a seedling planting device in which the power transmission of (B), (C), (D), and (E) is provided in at least two separate systems from a single drive shaft (43), The main seedling planting clutch (45) that turns on and off the power transmission of all the seedling planting tool groups (A) to (E) is configured as a fixed position stop type clutch, and this fixed position stopping position corresponds to the number of seedling planting tools corresponding to a single seedling division opening, and furthermore, the power for each of one or more seedling planting tool groups (A) to (E) is A seedling planting tool in which the transmission is set to be turned on and off by a fixed position stop type sub-seedling planting clutch (56), and the fixed position stop of this clutch (56) corresponds to a single seedling division opening. A power transmission device for a multi-row type seedling planting device configured to correspond to the number of seedlings. [3] The stopping position of each seedling planting tool by the main seedling planting clutch (45) and the stopping position of the seedling planting tool by the auxiliary seedling planting clutch (56) both separate the seedlings from the seedling tank and plant them. A power transmission device for a multi-row type seedling planting device according to claims 1 and 2, which is configured so as not to allow stoppage while reaching the field.