JP2010193742A - Seeding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seeding machine configured to reliably stop the drive of a spot seeder during travel. <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, a blower 8 for blowing pressurized air to the transport tubes 7, and granular material dispensing outlets T1. The granular material dispenser is provided with: a sensor 61 for detecting the drive of the granular material dispenser T, or a sensor 62 for detecting the granular materials dispensed from the granular material dispensing portion 6; and a control device 60 stopping the traveling vehicle 1 when the sensor 61 detects non-drive of the granular material dispenser T, or when the sensor 62 detects non-dispensing of the granular materials. <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

The driving of the seeding device described in Patent Document 1 is performed without distinguishing between the traveling and stopping of the seeding machine. Therefore, since the seeding device may not be driven while the seeder is traveling, an unseeded region may be formed in the field.
The subject of this invention is providing the seeder which can stop driving | running | working reliably, when the drive of a granular material discharge apparatus has stopped during driving | running | working, or when the granular material is not paying out.

The present invention has the following configuration in order to solve the above-described problems.
That is, a traveling vehicle body (1) and a granular material discharge device (T) are provided, and the granular material discharge device (T) receives a granular material from the granular material tank (5) and the granular material tank (5). Particulate feed part (6) to be fed, powder feed pipe (7) following the powder feed part (6), and powder outlet provided at the lower end of the powder transport pipe (7) Part (T1), and the granule discharge port part (T1) includes a discharge channel outlet (51) connected to the lower end of the particle transport pipe (7) and the discharge channel outlet (51). The powder discharged from the first sensor (61) that detects the drive of the powder discharge device (T), or the powder supply unit (6), which is composed of the surrounding discharge casing (frame) (52) A second sensor (62) for detecting the body is provided, and when the first sensor (61) detects that the granular material discharge device (T) is not driven, or the second sensor (62) by a control device provided with seed drills (60) to stop the vehicle body (1) and detects that the granular material is not fed.

  According to the first aspect of the present invention, it is possible to prevent an unworked area from being generated in the farm field by traveling without being sown in the farm field. It is also possible to prevent the unworked area in the field from being lost. As a result, a proper yield can be obtained at the time of harvest.

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. It is a control block diagram of the seeder of FIG. It is a longitudinal cross-sectional view which shows the modification of the feeding roll of the seeder of FIG. It is a longitudinal cross-sectional view which shows the modification of the feeding roll of the seeder of FIG. 10 is a longitudinal sectional view (FIG. 10 (a)) of the feeding roll portion showing a configuration characterized by the shape of the guide arranged around the feeding roll, and the guide and the feeding roll as viewed from the direction of arrow A in FIG. 10 (a). It is a side view (FIG.10 (b)) of a part. It is a side view (Drawing 11 (a) is normal time and Drawing 11 (b) is the time of a rise) of a slot machine of one example of a seeder of Drawing 1. FIG. It is side surface sectional drawing of the groove producing device of one Example of the seeder of FIG.

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 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 pipe 7 are provided, and seeds are fed from a seed tank 5 to a feeding device 6, a transfer pipe 7, a seed discharge port (seeding tube). ) Seeding 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 so that a feeding roll 19 having a large number of seed grooves 18 formed on the outer periphery faces 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 feeding 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 due to the wire 33, the covering plate 25 rotates around the fulcrum shaft 25a provided in the vertical direction in the direction of the sowing position to gather the soil at the sowing position, and the field is soft and mud The structure is configured such that the angle in the left-right direction can be changed and adjusted in plan view by rotating to the outside of the sowing position around the fulcrum shaft 25a so as not to bring soil to the 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 wire 33 (FIG. 3) is connected to the sensitivity adjustment lever 48, the operator can easily operate the sensitivity adjustment lever 48 to cover the earth covering plate 25. The amount of soil covering adjustment can be changed.

  Further, at the positions of the dotted line portions X, Y between the floats 24, 24 shown in FIG. 2, a drainage groove is provided in the field scene as the traveling vehicle body 1 advances, which is different from the grooving device 3 shown in FIG. It is good also as a structure which provides the groove making device (not shown) to form.

  Then, the grooving device (not shown) and the seed discharge port portion T1 are disposed at a related position where a drainage groove is formed substantially parallel to the side of the sowing line after the rear wheels 11, 11 ′ have passed. What is necessary is just to choose freely the context of the attachment position. As shown in FIG. 1, the fertilizer is applied from the fertilizer tank 29 to the farm 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. . When the work 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 the amount becomes constant, and as the feed roll 19 rotates, the seed is transferred to the conveyance start end of the lower transfer pipe 7. Fall.

  Then, a brush 23 for brushing a part of the surface of the feeding roll 19 is provided. The brush 23 functions to come into contact with the surface of the feeding roll 19 described above. That is, the brush 23 also has an action of sweeping seeds attached to the surface of the feeding roll 19 in a portion without the seed groove 18 in order to make the seed amount in the seed groove 18 uniform.

  FIG. 8 shows a cross-sectional view of a modified example of the feeding roll 19. A guide 34 is arranged on the outer periphery of the feeding roll 19 with an interval. The feeding roll 19 shown in FIG. 8 is an end cross-sectional view of the roll 19, and when seeds entering the seed groove 18 on the upper side of the feeding roll 19 from the seed tank 5 reach the lower side by the rotation of the roll 19. In order for the guide 34 to drop toward the transfer pipe 7, the lower part of the center of the feeding roll 19 is open.

  A brush 23 is provided so that seeds do not adhere to the surface of the feeding roll 19 in FIG. 8, and a discharge shutter 35 is provided on the opposite side of the brush 23 with respect to the vertical imaginary line of the brush 23 and the roll rotation shaft 19a. The brush 23 contacts the surface of the feeding roll 19 and functions to level the seed layer in the groove 18.

  Further, in the vicinity of the contact position between the discharge shutter 35 and the guide 34, the tip 34 a of the guide 34 is bent so as to be in contact with the surface of the feeding roll 19. The bent portion of the tip end portion 34 a prevents seeds from entering the gap between the feeding roll 19 and the guide 34, and seeds are formed on the step between the surface of the feeding roll 19 and the guide 34 when the seeds are discharged by the discharge shutter 35. It has the function of preventing the remaining seeds from being completely discharged.

  The discharge shutter 35 is used to open and close an opening provided on the lower side surface of the seed tank 5. When cleaning the inside of the seed tank 5, the discharge shutter 35 is opened and the inside of the seed tank 5 is miscellaneous. Can be discharged to the outside.

FIG. 9 shows a cross-sectional view of a modified example of the feeding roll 19. A guide 34 is arranged at both the feeding side position and the opposite position with an interval between the outer circumference of the feeding roll 19. In order for the seeds that have entered the groove 18 located on the upper side of the feeding roll 19 to fall to the lower side of the roll 19 when the feeding roll 19 rotates in the direction of the arrow, the guide 34 is dropped. Is arcuate. An optical sensor 62 for seed detection is arranged at the center of the guide 34 on the feeding side, and it is ensured that the seed is in the groove 18 before the seed in the groove 18 of the feeding roll 19 falls downward. Work is possible while checking.
If the optical sensor 62 is arranged at a position where the seed in the groove 18 of the feeding roll 19 can be detected downward, the seed is scattered in the air, so that detection by the optical sensor 62 becomes difficult. If the optical sensor 62 is provided at the position, the seed can be detected reliably.

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 feeding roll 19 to the transfer start end of the transfer pipe 7 is transferred through the transfer pipe 7 and reaches the seed discharge port (seed discharge port) T1 of the seed discharge device T on the tip side. Squirted and sown in the field after being cultivated. 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.

  Further, when a feeding roll rotational speed sensor 61 for detecting the driving of the feeding apparatus 6 is arranged on the rotation shaft portion of the feeding roll 19 and the rotational speed sensor 61 detects that the feeding apparatus 6 is not rotating, the feeding apparatus 6 and There is provided a control device 60 for stopping the driving of the seeding machine by stopping the driving of the main clutch (traveling clutch 64) that cuts the power transmission system to the wheels. Or it is good also as a structure which forcibly operates the speed-change lever which operates a forward-reverse continuously variable transmission to a driving | running | working stop position (front-rearward neutral position), makes transmission of a transmission zero, and stops driving | running | working.

  Further, a seed detection sensor 62 (a representative example of the optical sensor 62 in FIG. 9) that detects seeds fed from the feeding device 6 instead of the feeding roll rotation number sensor 61 is used as the feeding device 6, the transfer pipe 7, or the groove forming device. 3, when the seed detection sensor 62 detects that the seed is not being fed from the feeding device 6, the driving of the feeding device 6 and the main clutch that cuts the power transmission system to the wheels is stopped to stop the sowing machine from traveling. A control device 60 may be provided. A control block diagram of the above configuration is shown in FIG.

  In this way, it is possible to prevent an unworked area from occurring in the field by traveling without seeding the field. Further, when any of the sensors 61 and 62 detects that seeds are not being fed out from the feeding device 6, the traveling of the traveling vehicle body 1 is stopped, so that it is possible to prevent an unworked area in which seeds are not sprayed in the field. . Further, when it is detected that seeds are not drawn out from the feeding device 6, the traveling body 1 stops traveling, so that it is possible to prevent the occurrence of a situation in which the unworked area is not known, and thus an appropriate yield at the time of harvesting. Obtainable.

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 portion T1 surrounds the discharge channel outlet 51 having a U-shaped horizontal cross section connected to the lower end portion of the transfer pipe 7 and the discharge channel outlet 51, and has no upper wall surface and lower wall surface and is located on the upper side. It is comprised from the discharge | emission housing | casing (frame body) 52 of planar view "B" shape which only has a rear wall surface in. 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.

In addition, a triangular member 53 is attached to the front side of the front wall surface of the discharge casing (frame body) 52 in a side view and a top view, respectively, and a groove is formed by the discharge casing (frame body) 52 and the triangular member 53. A container 3 is configured.
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.

A structure in which a combination of the seed tank 5, the feeding device 6, the transfer pipe 7 and the like can be moved vertically with respect to the seed discharge port T1 (the support frame 4b is inserted into the pair of support frames 4a shown in FIG. 1 or It is possible to change the sowing state of the seeds by adopting a configuration in which the seeds are drawn and stretched. That is, when the combination of the seed tank 5, the feeding device 6, the transfer pipe 7, etc. is raised to a higher position with respect to the seed discharge port T <b> 1, the seeds are sprayed on the field in the seeded state, When the combined body such as the transfer pipe 7 is lowered to a lower position with respect to the seed discharge port T1, the seeds are sprayed on the field in the state of seeding.
Thus, by changing the height of the seed tank 5, the feeding device 6, the transfer pipe 7 and the like with respect to the seed discharge port T <b> 1, the seeds are sprayed on the field in either a spraying state or a row seeding state. .

FIG. 10 shows a configuration in which the shape of the guide 34 arranged around the feeding roll 19 is characterized. FIG. 10A is a longitudinal sectional view of the feeding roll 19 portion, and FIG. 10B is a side view of the guide 34 and the feeding roll 19 portion viewed from the direction of arrow A in FIG.
Since the lower side of the guide 34 is cut so as to be inclined with respect to the longitudinal direction of the groove 18 as shown in FIG. 10B, the seeds released from the lower side of the guide 34 do not fall at once, Can be sown in the field one by one.

  Although not shown in the drawing, the depth of the groove 18 of the feeding roll 19 can be adjusted by using the feeding roll 19 having the shallow groove 18 for spot seeding and using the feeding roll 19 having the deep groove 18 for strip seeding. May be.

  As shown in the side view of FIG. 11, a seed discharge port T <b> 1 that is rotatably attached to the tip of the lower end of the transfer pipe 7 is provided. The seed discharge port portion T1 is provided with a discharge casing (frame body) 52 that is not connected to the lower end portion of the transfer pipe 7 and has a lower portion of the rear wall surface and a triangular member 53 attached to the front thereof. ing.

And the transfer pipe 7 and the front of the upper end side of the discharge housing (frame body) 52 are rotatably connected by a pin 52a. When the seeder moves forward, as shown in FIG. 11 (a), the grooving device 3 is urged by the spring 36 so as to form a groove on the field and maintains a normal posture. However, when the seeder moves backward, the grooving device 3 rotates around the pin 52a as shown in FIG. 11B, and the tip of the triangular member 53 moves upward.
Thus, when the seeder moves backward, the grooving device 3 rotates around the pin 52a as shown in FIG. 11B, and the tip of the triangular member 53 moves upward. There is no risk of mud accumulation.

Further, in the embodiment shown in the side sectional view of FIG. 12, even if the inner wall surface of the groove producing device 3 is mud, in the illustrated example, the rotation shaft 37a is provided at the center of the discharge housing (frame body) 52, and the front wall surface and It is set as the structure provided with the brush 37 which can scrape off the adhering mud on the rear wall surface provided only in the upper part of the groove producing device 3.
If the groove 37 is configured to rotate when the groove producing device 3 is raised, the brush 37 scrapes adhering mud on the front and rear wall surfaces of the discharge casing (frame body) 52 each time the groove producing device 3 is lifted. Can be dropped.

  Moreover, it covers after the sowing of the groove | channel after sowing by performing after the creation of the groove | channel of the field scene by the grooving machine 3 according to the advancing speed of a seeder. However, if the speed of the sowing machine is too fast in places where the field surface is hard, the soil covering after grooving will be incomplete, so the speed will be reduced.

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

DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 3 Groover 4a, 4b Support frame 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 Covering plate 25a Support shaft 26 Connecting tube 27 Guide tube 28 Partition plate 29 Fertilizer tank 30 Fertilizer transfer tube 31 Fertilizer tube 33 Wire 34 Guide 35 Discharge shutter 36 Spring 37 Brush 37a Rotating shaft 40 Hard / soft sensor 44 Angle of attack sensor 45 Arm 48 Sensitivity adjustment lever 51 Discharge flow path outlet 52 Discharge housing (frame)
53 Triangular Member 55 Air Piping 60 Control Device 61 Feeding Roll Revolution Sensor 62 Seed Detection Sensor 64 Traveling Clutch T Seed Discharge Device T1 Seed Discharge Port (Seeding Pipe)

Claims (1)

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 channel outlet (51) connected to the lower end of the granular material transfer pipe (7) and a discharge casing (frame body) surrounding the discharge channel outlet (51). ) (52)
A first sensor (61) for detecting the driving of the powder and particle discharging apparatus (T), or a second sensor (62) for detecting the powder and particles fed from the powder and particle feeding unit (6), When it is detected by the first sensor (61) that the granular material discharge device (T) is not driven, or when it is detected by the second sensor (62) that the granular material is not fed out, the traveling vehicle body A seeder provided with a control device (60) for stopping (1).

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