JP2010193727A - Seeding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seeding machine including a granular material dispenser providing a uniform amount of seeds dispensed from a dispensing roll. <P>SOLUTION: The seeding machine includes a granular material dispenser T mounted on a traveling vehicle 1 and including a granular material tank 5, a granular material dispensing portion 6 for dispensing granular materials from the tank 5, transport tubes 7, and granular material dispensing outlets T1. In the granular material dispenser T, the granular material dispensing outlet T1 is constituted by a dispensing channel outlet 51 connected to the lower end of a transport tube 7 and a dispensing casing 52 surrounding the dispensing channel outlet 51, and an area surrounded by the dispensing casing 52 extends out of a transport area of granular materials from the dispensing channel outlet 51 and is provided with an air pipe 55 for blowing air toward the inner surface of the dispensing casing 52 positioned out of the transport area of the granular materials from the dispensing channel outlet 51. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a seeder for seeding a rice field or a field.

  The sowing machine used for direct sowing cultivation of paddy rice is equipped with a grooving device that pushes the mud into the left and right direction as the machine moves forward and a seeding device that drives seeds into the field. In this configuration, the seeds in the seed hopper are fed out, and the seeds fed out by the feeding roll are driven into the field by a discharge rotor via a discharge cylinder provided below the seed.

JP 2004-275128 A

Since the seed sowing device described in Patent Document 1 has a configuration in which seeds fed by a feed roll are driven into a field by a discharge rotor, a plurality of seeds fed together by the feed roll are energized by the discharge rotor. In some cases, the seeding of seeds on the field did not become uniform.
The subject of this invention is providing the sowing machine provided with the granular material discharge | emission apparatus which can seed | inoculate the granular material, such as a seed paid out from a feeding roll, uniformly in a field.

The present invention has the following configuration in order to solve the above-described problems.
That is, the invention described in claim 1 includes a traveling vehicle body (1) and a granular material discharge device (T), and the granular material discharge device (T) includes the granular material tank (5) and the granular material tank. (5) Powder / granule feeding part (6) for feeding the powder / granule, Powder / granule transfer pipe (7) following the powder / granule delivery part (6), and lower end of the powder / granule transfer pipe (7) The particulate discharge port (T1) provided in the discharge passage outlet (51) connected to the lower end of the granular material transfer pipe (7) and the particulate discharge port (T1) The region surrounded by the discharge housing (52) surrounding the discharge flow channel outlet (51), and the region surrounded by the discharge housing (52) is a direction crossing the discharge flow of the granular material blown out from the discharge flow channel outlet (51) Having a cross-sectional area in the direction crossing the discharge flow deviating from the powder particle discharge flow cross-sectional area, and blowing out from the discharge flow channel outlet (51) in the region surrounded by the discharge housing (52) A region deviating from the direction of the granular material discharge flow cross-sectional area transverse to the discharge flow of the granules, a sowing machine provided with an air pipe (55) for blowing air toward an inner surface of the discharge housing (52).

  Invention of Claim 2 is provided with a traveling vehicle body (1) and a granular material discharge apparatus (T), and a granular material discharge apparatus (T) is a granular material tank (5) and this granular material tank (5). ) Provided at the lower end portion of the granular material feeding portion (6) for feeding the granular material from the above, the granular material feeding tube (7) following the granular material feeding portion (6), and the granular material feeding tube (7). The particulate discharge port portion (T1) includes a discharge passage outlet (51) connected to a lower end portion of the particulate transfer pipe (7) and the discharge flow. The region surrounded by the discharge housing (52) surrounding the passage outlet (51) is surrounded by the discharge housing (52). The discharge of the granular material which has a cross-sectional area in a direction crossing the discharge flow deviating from the cross-sectional area of the particle discharge flow and blows out from the discharge flow channel outlet (51) in the region surrounded by the discharge housing (52). A state in which air is blown out to a region deviating from the cross-sectional area of the granular material discharge flow in the direction crossing the flow, and a cross-sectional area of the granular material in the direction crossing the discharge flow of the granular material blown out from the discharge channel outlet (51) The seeding machine according to claim 1, wherein the air pipe (55) is attached in a switchable manner to a state where air is blown into the region.

  According to the first aspect of the present invention, it is possible to prevent adhesion of powder particles such as soil and seeds to the inner wall surface of the discharge casing 52, prevent clogging of the powder discharge port 51, and discharge container 52. Since the pressure wind does not directly hit the granular material that is fed into the inside of the powder, the sowing accuracy can be maintained at the time of sowing.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, at the time of the sowing, the granular material is dispersed by directly applying the pressure air to the granular material fed into the discharge casing 52. Therefore, it is possible to make the discharge of the granular material uniform, and to properly spread the granular material.

It is a side view of a seeder which is one embodiment of the present invention. It is a top view of the seeder of FIG. FIG. 3 is an enlarged view of the vicinity of the float in FIG. 2. It is a sectional side view of the seed tank part of the seeder of FIG. It is a figure of the feeding apparatus vicinity of the SS line | wire cross section of FIG. 1 is a side view of the seed discharge port (seeding tube) of the seed discharge device of the seeder of FIG. 1 (FIG. 6 (a)) and an arrow view from the direction of arrow A in FIG. 6 (a) (FIG. 6 (b)). It is. FIG. 7 is a side view of a seed discharge port (seeding tube) of a seed discharge device according to an embodiment different from FIG. 6. FIG. 7 is a side view of a seed discharge port (seeding tube) of a seed discharge device according to an embodiment different from FIG. 6. FIG. 7 is a rear view of a seed discharge port (seeding tube) of a seed discharge device according to an embodiment different from FIG. 6. It is a rear view of the seed discharge outlet part (seeding tube) of the seed discharge device of a prior art.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a side view of a seeder according to an embodiment of the present invention, FIG. 2 shows a plan view of the seeder of FIG. 1 (the operation plate is omitted), and FIG. An enlarged view of the vicinity of the float is shown. 4 shows a side sectional view of the seed tank portion, and FIG. 5 shows a view of the seed tank portion taken along the line SS of FIG. In this embodiment, the granular material refers to seeds such as cocoons.

  The granular material discharge device T of the seeder of the present embodiment includes a granular material tank 5, a granular material feeding unit 6 that feeds the granular material from the granular material tank 5, and powder following the granular material feeding unit 6. A granular material transfer pipe 7 and a granular material discharge port T1 provided at the lower end of the granular material transfer tube 7 are provided, and seeds are fed from a seed tank 5 to a feeding device 6, a transfer tube 7, a seed discharge port (seeding). Tube) Seeded in the field through T1 and the like. In addition, the sowing machine is provided with additional devices such as a blower 8 for raising air and an air chamber 9 for blowing air, and is attached to the rear part of the traveling vehicle body 1 to form a flooded direct sowing machine. . The forward direction of the seeding machine is referred to as the front, the backward direction is referred to as the rear, and the left and right sides in the forward direction are referred to as the left and right, respectively.

  The traveling vehicle body 1 includes front wheels 10 and 10 'for steering and rear wheels 11 and 11' for propulsion, a control seat 13 is disposed on a central engine room (sometimes referred to as an engine) 12, and the paddy field It is configured to run while rotating on the cultivator. The elevating link 14 is composed of a pair of upper and lower parallel links, the front part is pivotally connected to the rear machine casing 15 of the traveling vehicle body 1, the connecting hitch 16 is attached to the rear part, and the hydraulic cylinder 17 on the vehicle body 1 side is attached. It is configured to move up and down. The hitch 16 is mounted and supported by a seeding machine, which will be described in detail below, and is configured to move up and down freely.

  Next, the configuration of the seeder will be specifically described based on the drawings. First, as shown in FIG. 4 and FIG. 5, the feeding device 6 is provided with a feeding roll 19 having a large number of seed grooves 18 formed on the outer periphery facing the lower side of the seed tank 5 so that it can be transmitted. Below that, the starting end of the transfer pipe 7 that conveys the seed is faced. In addition, as shown in FIG. 5, the seed groove 18 can slide the side adjuster 20 left and right along the shaft 19a by the rotation adjusting operation of the rotation adjusting wheel 21, thereby adjusting the size of the seed storage volume. It is configured. The power from the engine 12 is transmitted to the input sprocket 22, and the rotating shaft 19a of the feed roll 19 rotates.

  And the seed tank 5 is mounted as one of the structural members of the seeder connected with the rear part of the traveling vehicle body 1, as shown in FIG. 1 and FIG. Next, as shown in FIGS. 4 and 5, a cylindrical air chamber 9 is disposed laterally behind the lower side of the feeding device 6, a blower 8 is connected to one end of the air chamber 9, and the other end It is set as the structure which can store the air ventilated by sealing with a lid | cover.

  The transfer pipe 7 that conveys the granular material in the seed tank 5 via the feeding device 6 extends the terminal end side toward the side close to the farm scene, and extends to the seed discharge port T1 provided at the sowing position. It is configured to communicate. Then, it is provided on the ground surface, and its vertical position is controlled according to the detection value of the angle-of-attack sensor 44 (FIG. 1), and the seed discharge port T1 is attached to the float 24 that slides while leveling the topsoil. The seeds are sprayed and sown in a field scene that has been leveled.

  And as shown in FIG. 3, the earth covering board 25 is each arrange | positioned in the back of the sowing line | wire which provided the seed discharge port part T1 mentioned above. When the field is hard, the cover plate 25 rotates around the fulcrum shaft 25a in the direction of the sowing position to gather the soil at the sowing position. When the field is soft and mud, the sowing position is centered on the fulcrum shaft 25a It is the structure which can rotate and adjust the angle of the left-right direction by planar view so that it may turn to the outer side of so that soil may not come near to a sowing position. The hardness of the field can be detected by rotating the hard / soft sensor 40 attached to the hitch 16 via the arm 45 while contacting the field scene.

  Thus, the earth covering plate 25 is configured to rotate by the tension and relaxation of the wire 33. For example, if the sensitivity adjustment lever 48 (FIG. 2) is provided on the control seat 13 and the cable 33 (FIG. 3) is connected to the sensitivity adjustment lever 48, the operator can easily operate the sensitivity adjustment lever 48 to cover the cover plate 25. The amount of soil covering adjustment can be changed.

Moreover, it is good also as a structure which provides in the position of the dotted-line part X and Y between the said floats 24 and 24 shown in FIG. .
Then, the groover and the seed discharge port T1 may be disposed at a position where a drainage groove is formed substantially parallel to the side of the sowing line after the rear wheels 11, 11 ′ have passed. The context of the mounting position can be freely selected. As shown in FIG. 1, the fertilizer is applied from the fertilizer tank 29 to the field through the fertilizer transfer pipe 30 and the fertilizer pipe 31.

  The seeder configured in this manner is placed in a field that has been submerged after the leveling work, and the fertilizer tank 29 is filled with fertilizer, and the seed tank 5 is filled with seeds and advanced to start the seeding work. . Then, when the operation is started, the seeds in the seed tank 5 reach the lower rotating feeding roll 19 as shown in FIG. 4 and are respectively supplied to the plurality of seed grooves 18 provided on the outer periphery of the feeding roll 19. It is sent in the direction of pooling rotation. At that time, the seeds in the seed groove 18 reach the brush 23 on the lower rotation side, the surface is leveled and becomes a fixed amount, and as the feed roll 19 rotates, the seeds 18 reach the conveying start end of the lower transfer pipe 7. Fall.

  The brush 23 has a function of brushing a part of the surface of the feeding roll 19 and leveling by contacting the surface of the feeding roll 19. That is, the brush 23 also has an action of sweeping seeds adhering to the surface of the feeding roll 19 where there is no seed groove 18 in order to make the seed amount in the seed groove 18 uniform.

Further, compressed air generated by the blower 8 is stored in the air chamber 9 and flows into each communicating groove device 3 (FIG. 6) via the air pipe 55. The seed that has fallen from the feed roll 19 to the transfer start end of the transfer tube 7 is transferred through the transfer tube 7 to reach the seed discharge port (seeding tube) T1 of the seed discharge device T on the tip side, and is leveled by the float 24. It is squirted and sown in a later field. And the soil covering board 25 keeps a predetermined angle with respect to the advancing direction, scrapes the top soil of the farm scene, covers the seed sowing seeds, and completes the sowing operation.
The sowing machine performs sowing work on a field scene that has been flooded as the traveling vehicle body 1 moves forward by the above-described method.

A detailed side view of the configuration of the seed discharge port (seeding tube) T1 is shown in FIG. 6 (a), and an arrow view from the direction of arrow A in FIG. 6 (a) is shown in FIG. 6 (b).
A seed discharge port T <b> 1 is provided at the lower end of the transfer pipe 7. The seed discharge port T1 surrounds the discharge channel outlet 51 having a U-shaped horizontal cross section connected to the lower end of the transfer pipe 7 and the discharge channel outlet 51, and has an upper wall surface, a lower wall surface, and a rear wall surface. It is composed of a discharge casing (frame body) 52 having no horizontal section “U” shape. Further, the discharge flow path outlet 51 opens along the inner wall surface of the discharge casing (frame body) 52 at a position that does not reach the bottom surface of the discharge casing (frame body) 52.

The discharge casing (frame body) 52 has a triangular member 53 attached to the front side of the front wall surface in a side view and a top view, respectively. 3 is constituted.
While the sowing machine is moving forward in the field, it is possible to make a groove in the field by the groover 3 and sow seeds sprayed from the discharge channel outlet 51 immediately after the created groove.

  The seed discharge port T1 has a discharge channel outlet 51 having a U-shaped cross section attached in contact with the front wall surface of the discharge housing (frame body) 52 and the inner wall surfaces of the left and right side wall surfaces. The lower end of the transfer pipe 7 is connected to the top of the discharge channel outlet 51. Then, the seeds are blown out along the inner wall surface of the casing (frame body) 52 via the discharge channel outlet 51 having a “U” -shaped cross section from the transfer pipe 7 and surrounded by the discharge casing (frame body) 52. It is sprayed toward the farm scene in the space.

  Further, the pressure air from the tip of the air pipe 55 supported on the outside of the transfer pipe 7 is a cross-sectional area in the direction crossing the discharge flow of the powder blown out from the discharge flow channel outlet 51 (projection of transfer of the powder powder). The area is blown out into a space surrounded by a discharge casing (frame body) 52 having a cross-sectional area in a direction crossing a wider discharge flow (area deviating from the transfer projection area).

  Therefore, the pressure air from the air pipe 55 prevents the soil and powder (seed) from adhering to the inner wall surface of the discharge housing (frame) 52, and the soil and powder at the seed discharge port T1. In addition to preventing clogging of (seed), there is an advantage that the seeding accuracy can be maintained at the time of seeding of seeds, because the pressurized air is not directly applied to the seeds that are fed out.

  Moreover, the side view of FIG. 7 is a seed discharge port portion T1 of another embodiment different from FIG. 6 showing the arrangement relationship among the seed tank 5, the feeding device 6, the transfer pipe 7, and the groove producing device 3. In the configuration shown in FIG. 7, seeds fed from the seed tank 5 are conveyed to the tip of the transfer pipe 7 by the seed blower 8 (FIG. 1). It is the structure which sprays a seed on the farm field from the inside of the grooving device 3 with the airflow from the air piping 55 arrange | positioned at a part.

  The grooving device 3 has a discharge casing (frame body) 52 having a horizontal section “U” shape without an upper wall surface, a lower wall surface, and a rear wall surface, and a transfer pipe 7 at the top of the discharge casing (frame body) 52. The lower ends of the are arranged at intervals.

A discharge housing (frame body) 52 is attached to the groove forming device 3, and a triangular member 53 is attached to the front side of the front wall surface in a side view and a top view, respectively. The grooving device 3 is constituted by
While the seeder is moving forward in the field, a groove is formed in the field by the grooving device 3, and seeds sprayed by the pressure air from the air pipe 55 are sown from the tip of the transfer pipe 7 immediately after the created groove. it can.

  Therefore, the pressure air prevents the soil and powder (seed) from adhering to the inner wall surface of the discharge housing (frame) 52, and the soil and powder (seed) are clogged at the seed discharge port T1. In addition, the pressure wind does not directly hit the seeds that are fed out, so that there is an advantage that the seeding accuracy can be maintained when seeding the seeds.

FIG. 8 includes a discharge casing (frame body) 52 having a horizontal section “U” shape without an upper wall surface, a lower wall surface, and a rear wall surface, and a space is provided at the top of the discharge casing (frame body) 52. The lower end of the transfer pipe 7 where the seeds fall is disposed, and an air pipe 55 for supplying air from the blower 8 is attached to the lower end of the transfer pipe 7.
This configuration is different from the configuration shown in FIG. 7 in that the air pipe 55 is arranged so that the air blown from the air pipe 55 directly hits the seeds falling from the transfer pipe 7. In this case, the seeds falling from the transfer pipe 7 are disturbed by the air, so that the seeds are disseminated in the field close to the streak.

  A powder body discharge port portion T1 of another embodiment shown in the rear view of FIG. 9 has a body frame 57 that supports the front end portion of the transfer pipe 7 and a short cylindrical discharge flow channel outlet at the front end portion of the transfer pipe 7. 51, which is provided below the discharge flow channel outlet 51, is spaced below the powder discharge port 51, and has a casing (frame) without an upper wall surface, a lower wall surface, and a rear liquid surface. A discharge casing (frame body) 52 of the groove producing device 3 made of a body is disposed.

The discharge housing (frame body) 52 has a front wall surface and left and right side wall surfaces, and has a configuration in which an upper portion is open. Although not shown, a side surface is provided on the front side of the front wall surface of the discharge housing (frame body) 52. A triangular grooving device 3 is attached to each of the view and the top view,
In the configuration of the prior art shown in the rear view of FIG. 10, since the powder body discharge port T1 ′ has a body frame 57 ′ at the center of the body of the seeding machine, the transfer pipe 7 ′ is bent behind the body frame 57 ′. In addition, since a short cylindrical discharge passage outlet 51 ′ is connected to the distal end portion and a discharge casing (frame body) 52 ′ is disposed below the discharge passage outlet 51 ′, the transfer pipe 7 ′ It was easy to get seeds in the bent part.

  On the other hand, in the present invention shown in FIG. 9, the transfer pipe 7 does not have a bent portion, so that the seed does not stay in the transfer pipe 7, and the pressure air from the discharge channel outlet 51 and the air pipe 55 is discharged. Can be blown out toward the farm scene located in the central part of the discharge casing (frame body) 52.

  In all the embodiments shown in FIGS. 6 to 9, when the softness sensor 40 for detecting the softness of the field provided in the seeder detects that the field is soft, the blower 8 is activated by a control device (not shown). If the blower 8 is stopped when it is detected that the field is hard, mud can be prevented from adhering to the grooving device 3 when the field is soft.

  Further, in all the embodiments shown in FIGS. 6 to 9, when a water sensor (not shown) for detecting the presence of water in the field provided in the seeder detects that the water depth in the field is deep, the blower 8 Can be stopped, and the groove 3 or the like can be prevented from getting wet due to water splashing by the wind. Moreover, even if the blower 8 is stopped, if there is water, there is an advantage that the groove producing device 3 is washed with water.

  6 to 9, when the seeder is running, the blower 8 is operated so that mud does not adhere to the groove producing device 3.

  The seed tank 5 portion of the seeder shown in FIG. 1 can be moved up and down by the lifting link 14, but when the seed tank 5 portion is raised, the fertilizer transport blower 49 and the seed tank 5 portion of the fertilizer tank 29 portion are raised. Air from the fertilizer transport blower 49 of the fertilizer transfer pipe 30 is seeded by a shutter (not shown) that can operate both the seed transport blower 8 and block air blow in the fertilizer transfer pipe 30. The inside of the grooving machine can be cleaned by flowing it through the transfer pipe 7.

  In addition, a shutter (not shown) that can block the air blowing in the seed transfer pipe 7 in the seed tank 5 portion is provided, and the air blown by the seed transfer blower 8 is sent by the fertilizer transfer blower 49 of the fertilizer transfer pipe 30. At the same time, the fertilizer transfer system 30 can be cleaned by blowing air through the fertilizer transfer pipe 30.

  If the fertilizer transport blower 49 and the seed transport blower 8 are replaced with a single powerful blower, and a cleaning hose for sending air from this single blower and a tip nozzle are provided, various devices of the seeder can be used. Can be cleaned.

  The present invention is highly useful not only for seeding machines but also for other agricultural machines.

DESCRIPTION OF SYMBOLS 1 Traveling body 3 Groover 5 Seed tank 6 Feeding device 7 Transfer pipe 8 Blower 9 Air chamber 10 Front wheel 11 Rear wheel 12 Engine room 13 Control seat 14 Lifting link 15 Machine frame 16 Hitch 17 Hydraulic cylinder 18 Seed groove 19 Feeding roll 19a Rotating shaft 20 Adjusting tool 21 Rotating adjusting wheel 22 Input sprocket 23 Brush 24 Float 25 Cover plate 25a Support shaft 29 Fertilizer tank 30 Fertilizer transfer pipe 31 Fertilizer pipe 33 Wire 40 Hard and soft sensor 44 Angle of attack sensor 45 Arm 48 Sensitivity adjustment lever 49 Fertilizer conveyance Blower T Seed Discharge Device T1 Seed Discharge Port (Seeding Tube)
51 Discharge flow path outlet 52 Discharge housing (frame)
53 Triangular member 55 Air piping 57 Airframe frame

Claims (2)

A traveling vehicle body (1) and a granular material discharge device (T) are provided.
The granular material discharge device (T) includes a granular material tank (5), a granular material supply unit (6) for supplying the granular material from the granular material tank (5), and the granular material supply unit (6). And a granular material discharge pipe (7) provided at the lower end of the granular material transfer pipe (7) and the granular material transfer pipe (7),
The granular material discharge port (T1) includes a discharge flow channel outlet (51) connected to the lower end of the granular material transfer pipe (7) and a discharge housing (52) surrounding the discharge flow channel outlet (51). Consisting of
The area surrounded by the discharge casing (52) has a cross-sectional area in the direction crossing the discharge flow deviating from the cross-sectional area of the powder discharge flow in the direction crossing the discharge flow of the powder blown out from the discharge flow path outlet (51). Have
The inner surface of the discharge housing (52) in a region deviating from the cross-sectional area of the granular material discharge flow in the direction transverse to the discharge flow of the granular material blown out from the discharge flow channel outlet (51) in the region surrounded by the discharge housing (52) A seeder provided with an air pipe (55) for blowing air toward the surface. A traveling vehicle body (1) and a granular material discharge device (T) are provided.
The granular material discharge device (T) includes a granular material tank (5), a granular material supply unit (6) for supplying the granular material from the granular material tank (5), and the granular material supply unit (6). And a granular material discharge pipe (7) provided at the lower end of the granular material transfer pipe (7) and the granular material transfer pipe (7),
The granular material discharge port (T1) includes a discharge flow channel outlet (51) connected to the lower end of the granular material transfer pipe (7) and a discharge housing (52) surrounding the discharge flow channel outlet (51). Consisting of
The area surrounded by the discharge casing (52) has a cross-sectional area in the direction crossing the discharge flow deviating from the cross-sectional area of the powder discharge flow in the direction crossing the discharge flow of the powder blown out from the discharge flow path outlet (51). Have
A state in which air is blown out to a region outside the cross-sectional area of the granular material discharge flow in the direction crossing the discharge flow of the granular material blown out from the discharge flow channel outlet (51) in the region surrounded by the discharge housing (52); The mounting state of the air pipe (55) is switchably attached to a state in which air is blown out to a region within the powder cross-sectional area in a direction crossing the discharge flow of the powder blown out from the flow path outlet (51). The seeder according to claim 1.

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