JP2000287508A - Seedling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in which, in a seeding machine, for example, when sowing seeds in six rows by eight row sowing, in the case wherein a seeding row (seeding pipe) at the outermost part and a seeding row (seeding pipe) just inside the seeding row are folded upward together with a soil preparation float and departed, a transportation pipe connected for transporting seeds from a seed tank to the seeding pipes is interfered with a folding member to obstruct a folding operation so that the seeding rows have difficulty in sufficiently departing to an upper position. SOLUTION: A seeding pipe 4 arranged at the outermost part among plural seeding pipes 4, 4' and 4" and the seeding pipes 4' just inside the seeding pipe 4 as a set are connected to soil preparation floats 6 which are attached changeably in an angle from the longitudinal direction to a traverse direction to a machine frame. Seeds are transported and fed to a set of the seeding pipe 4 and 4' by transporting pipes 2 consisting of main transporting pipes 2a and fork branched transporting pipes 2b and 2c. The main transporting pipes 2 are offset inside a machine body based on the soil preparation floats 6 and installed to give the objective seeding machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sowing machine and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art A seeding machine used for direct sowing cultivation of paddy rice is provided with a feeding device for feeding seeds to a seed tank.
A transfer tube and a seeding tube are connected to the feeding device so as to communicate with each other. Then, the seeding machine, by the compressed air blown out from the air chamber-seeds fed out by a fixed amount from the feeding device, pneumatically conveyed through the transfer pipe to the seeding pipe,
It is sowed in the field scene.

[0003]

Conventionally, a sowing machine uses a machine having multiple sowing strips (seeding pipes) to make a part of the sowing strips in a resting state and perform a sowing operation of a small number of strips. Sometimes. For example, in an eight-row sowing machine, the outer two rows are stopped and six rows are sowed.

In such a case, the seeding machine is usually provided with an outermost sowing line (seeding tube) and a sowing line (seeding tube) immediately inside the outermost sowing line.
Are folded and folded upward together with the grading float to be retracted, and are rested, and are sown in the field by another sowing line (sown tube). However, in this case, when the conventional seeding machine bends and retracts, the transfer pipe connected to transfer the seeds from the seed tank to the seeding pipe interferes with the bending member and hinders the bending operation, and the leveling operation is performed. There was a problem that it was difficult to retract the float and the seeding tube attached thereto to a sufficiently high position.

[0005]

The present invention takes the following technical means in order to solve the above-mentioned problems.
That is, the transfer pipe 2 for transferring the seeds unwound from the seed tank 1 is provided in communication with a plurality of sowing pipes 4, 4 ', 4 "... , 4 ′, 4 ″... Are a set of the seeding tube 4 arranged at least on the outermost side and the seeding tube 4 ′ inside the pair, and are mounted on the machine frame 5 so that the angle can be changed horizontally and vertically. And a set of sowing pipes 4 and 4 ′, each of which comprises a main transfer pipe 2 a on the seed tank 1 side and a bifurcated branch transfer pipe 2 b and 2 c connected to the tip thereof. The seeds are conveyed and supplied by a pipe 2, and the branch transfer pipe 2
b, 2c, the branch transfer pipe 2b connected to the outermost seeding pipe 4 is connected to the branch transfer pipe 2 communicating with the inner seeding pipe 4 '.
c, the main transfer pipe 2a is a seeding machine having a configuration in which the main transfer pipe 2a is arranged to be offset inside the body with respect to the center between the set of seeding pipes 4, 4 '.

[0006]

The present invention is constructed as described above, so that the seeding machine is capable of bending the outermost seeding tube and the seeding tube immediately inside the outermost seeding tube together with the leveling float upward and retreating. Since the main transfer pipe is offset to the inside of the fuselage with respect to the seeding pipe to be bent, there is almost no interference with the bending member, and there is an effect that the seeding pipe can be reliably bent and retracted from the seeding position.

[0007]

Embodiments of the present invention will be described below. First, as shown in FIGS. 3 to 6, the seeding machine includes a seed tank 1, a feeding device 7, a transfer pipe 2, a seeding pipe 4, 4 ′,
4 "In addition, it is composed of auxiliary equipment such as a blast impeller 8 and an air chamber 9, and is mounted on the rear part of the traveling vehicle body 3 to form a flooded direct sowing machine.

[0008] The traveling vehicle body 3 includes the front wheels 1 for steering.
0, 10 'and propulsion rear wheels 11, 11' are provided, and a control seat 13 is provided on a central engine room 12, so that the vehicle can run while rotating on a cultivator in a paddy field. . The lifting link 14 has a front portion pivotally connected to a rear machine frame 15 of the traveling vehicle body 3 by a pair of upper and lower parallel links, and a rear portion attached to a connection hitch 16 and is mounted on the vehicle body 3 side. It is connected to a hydraulic cylinder 17 so as to be movable up and down. The hitch 16 is attached and supported with a seeding machine, which will be described in detail below, and is configured to be vertically movable up and down.

Next, the configuration of the seeder will be specifically described with reference to the drawings. First, the feeding device 7 is shown in FIGS.
As shown in the figure, a pay-out roll 19 having a large number of seed grooves 18 formed on the outer periphery thereof is provided so as to face the lower side of the seed tank 1 so as to be operably supported on a shaft, and below the transfer pipe for transferring seeds. 2 is provided facing the start end. As shown in FIG. 6, the seed groove 18 can adjust the storage volume of the seed by sliding the adjuster 20 on the side to the left and right along the axis by the rotation adjustment operation of the rotation adjustment wheel 21. It has a configuration. 22 is an input sprocket.

[0010] The brush 23 is connected to the feeding roller.
It is provided in order to contact and level the surface of the filer 19 and to make the seed amount in the seed groove 18 uniform. The seed tank 1 configured as described above, as shown in FIG. 3 and FIG.
It is mounted as one of the components of the seeder connected to the rear of the traveling vehicle body 3. Next, as shown in FIGS. 5 and 6, the air chamber 9 is provided in a cylindrical shape and disposed laterally below the feeding device 7, one end of which is connected to the wind impeller 8, and the other end of which is provided. It is configured to be able to store the blasted air by sealing it with a lid. Then, as shown in FIG. 5, the transfer pipe 2 is provided with its transfer start end opened and communicated with the air chamber 9, and the air (blast) stored in a high pressure state is fed into the transfer pipe 2 as described above. Is configured to pneumatically convey a predetermined amount of seeds supplied from.

As shown in FIG. 3, the transfer pipe 2 whose leading end communicates with the air chamber 9 is connected to the distal end of the main transfer pipe 2a extending toward the lower field scene as shown in FIG. The branch transfer pipes 2b and 2c communicate with each other in a bifurcated manner. The branch transfer pipes 2b and 2c are configured to communicate with the seeding pipes 4 and 4 'attached to the leveling float 6 provided to slide on the field surface. As shown in FIG. 1, each of the seeding tubes 4, 4 ′, 4 ″ is used to transfer a predetermined amount of seeds transferred from the main transfer tube 2a to the branch transfer tubes 2b, 2c by pressurized air. The seeding is performed by cutting the seeding groove on the surface.

The branch transfer pipes 2b and 2c are connected to each other in FIG.
As shown in the figure, the branch transfer pipe 2b connected to the outermost seeding pipe 4 is connected to the branch transfer pipe 2 connected to the inner seeding pipe 4 '.
c, and the main transfer pipe 2a is arranged to be offset inside the fuselage with respect to the leveling float 6. As shown in FIG. 1, the rotating machine frame 25 is pivotally connected to the outer end of the machine frame 5 on the machine body side so as to be able to be bent upward (foldable), and the leveling float 6 is attached. are doing. Therefore, both outer leveling floats 6 are the outermost sowing tube 4 and the inner sowing tube 4 '.
7 and 8, the angle can be changed from a horizontal position (a leveling work position) to a vertical position (a retreat position where the seeding operation is suspended), as shown in FIGS. 7 and 8. I have.

The seeding tube 4, which has been stopped as described above,
Although not shown, 4 'has a structure in which the clutch of the input sprocket 22 can be disengaged and the feeding roll 19 can be stopped when the operation of turning to the upper retracted position is performed. As another example of the configuration shown in FIG. 9, the draft impeller 8 has an intake port 26 opened on the lower surface of the engine room 1.
If it is configured so as to be close to the exhaust port 29 of the exhaust pipe 28 connected to the second engine 27, it is possible to take in the hot exhaust air of the engine 27 and use it for the transport wind.

In this type of seeding machine for direct sowing in water, since the operation is performed in paddy fields, water is inevitably adhered to the seeding machine. Often causes. In such a case, as described above, when the hot-air impeller 8 sucks the hot air exhausted from the engine 27 and uses the hot air as the carrier air, there is an advantage that each part is dried and seed clogging can be prevented.

In the embodiment shown in FIGS. 10 and 11, the outermost seeding tube 4 is attached to a small outer float 6a and connected to the branch transfer tube 2b. With this configuration, the outermost seeding tube 4 and the outer flow tube
The seed 6a is supported by the branch transfer pipe 2b and can travel in the field as the traveling vehicle body 3 moves forward to perform seeding. When the seeding is stopped, the branch transfer pipe 2b is bent and retracted upward. can do.

With this configuration, the outermost seeding tube 4
The outer float 6a has the advantage that the structure can be significantly simplified, the manufacturing cost can be reduced, and the upward folding operation can be easily performed. Next, the operation will be described. The seeds are filled into the seed tank 1 of the seeding machine configured as described above, and the various parts of the machine body are driven to start the seeding operation while moving the traveling vehicle body 3 forward.
Then, the seeds in the seed tank 1 are, as shown in FIG.
The roll reaches the feeding roll 19 rotating below, and is supplied to the seed groove 18 on the outer periphery of the feeding roll 19, and is fed in the direction of the pool rotation. At this time, the seeds in the seed groove 18 reach the brush 23 on the lower side of the rotation and the surface is evenly leveled to be quantitative, and the transfer start end of the lower transfer pipe 2 with the rotation of the feeding roll 19. Drop to the part. At this time, the compressed air generated by the blast impeller 8 is stored in the air chamber 9 and flows into each of the transfer pipes 2 communicating with each other.

In this manner, the seeds are transferred to the air chamber 9.
The compressed air blown in from the main transfer pipe 2a of the transfer pipe 2 transports the air in the main transfer pipe 2a, splits at the tip end into two branches, reaches the branch transfer pipes 2b and 2c, and is ejected into the seeding pipes 4 and 4 '. Are sown in the field after the soil is leveled by the leveling float 6. As described above, in the case of the embodiment shown in FIG. 4, the seeding machine simultaneously seeded eight lines with each of the seeding tubes 4, 4 ′, 4 ″.
From the field scene.

Next, an operation for reducing the number of sowing lines of a sowing machine will be described. First, the operation of switching the sowing machine from the eight-row sowing shown in FIGS. 3 and 4 to the four-row sowing shown in FIGS.
Fold the top 6 to the upper side to reduce the number of seeding lines by two on each side to half four. It is needless to say that this switching operation may be performed only on one side (8 → 6).

As described above, the seeding machine is provided on the outer rotating machine frame 2.
5 is bent upward with respect to the machine frame 5, and the connected leveling float 6, and the outermost seeding tube 4 and the inner seeding tube 4 'are united to form a rotating machine frame 25. At the same time, it is folded upward and retreated from the seeding position. In addition,
At this time, the feed roller 19 is disengaged and the clutch is disengaged.

Therefore, the number of sowing lines can be reduced from eight sowing machines to six or four sowing machines. In this operation, the main transfer pipe 2a has a configuration in which the outer branch transfer pipe 2b is longer than the inner branch transfer pipe 2c and is offset inward with respect to the leveling float 6 as described above. The operation can be easily performed without interfering with each member at the time of the folding operation.

[Brief description of the drawings]

FIG. 1 is a rear view of an embodiment of the present invention.

FIG. 2 is a side view of the embodiment of the present invention.

FIG. 3 is a side view of the embodiment of the present invention.

FIG. 4 is a plan view of the embodiment of the present invention.

FIG. 5 is a cut-away side view of the embodiment of the present invention.

FIG. 6 is a cut rear view of the embodiment of the present invention.

FIG. 7 is an operation plan view of the embodiment of the present invention.

FIG. 8 is an operation side view of the embodiment of the present invention.

FIG. 9 is a side view of the embodiment of the present invention.

FIG. 10 is an operational rear view of the embodiment of the present invention.

FIG. 11 is a side view of the embodiment of the present invention.

[Explanation of symbols]

Reference Signs List 1 seed tank 2 transfer pipe (2a main transfer pipe, 2b, 2c branch transfer pipe) 3 traveling vehicle body 4 seeding pipe (4 outermost seeding pipe, 4 'inner seeding pipe, 4 "other seeding pipe) 5 machine frame 6
Leveling float.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Ichiro Watanabe 1-Family Yachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. F-term (Reference) 2B054 AA20 CA04 DA09 DE02 DE09

Claims (1)

[Claims] 1. A transfer pipe 2 for transferring seeds unwound from a seed tank 1 is provided in communication with a plurality of seeding pipes 4, 4 ', 4 "... The seeding tubes 4, 4 ′, 4 ″ are attached to the machine frame 5 so that the angle can be changed in the horizontal and vertical directions as a set of at least the outermost seeding tube 4 and the inner seeding tube 4 ′. And a set of seeding tubes 4, 4 '
Is a transfer pipe 2 comprising a main transfer pipe 2a on the side of the seed tank 1 and a bifurcated branch transfer pipe 2b, 2c connected to the tip thereof.
And the branch transfer pipes 2b and 2c are configured such that the branch transfer pipe 2b connected to the outermost seeding pipe 4 is connected to the branch transfer pipe 2c communicating with the inner seeding pipe 4 '. A sowing machine having a configuration in which the main transfer pipe 2a is longer and arranged to be offset inside the body with respect to the center between the set of sowing pipes 4 and 4 '.