JP5691212B2 - Direct seeding machine - Google Patents

Description

  The present invention relates to a direct sowing machine for sowing seeds such as seed pods in a field.

  In a seed feeding device of a direct seeding machine for seeding seeds in a conventional field, etc., a cleaning member (brush) and a seed drop prevention member, etc., which are arranged in the vicinity of the feeding rotating body are attached to separate parts in the feeding device with screws or the like. It is configured.

JP 2008-136417 A

  Conventional direct seeding in which a cylindrical rotating body (feeding rotating body) with a plurality of seed grooves into which the seeds enter at regular intervals is installed on a rotating shaft installed in the left-right direction behind the machine body that rotates with the power of the engine In the machine, a brush for adjusting the amount of seeds entering the seed groove of the feeding rotary body and a seed fall prevention member for preventing seeds from spilling from the seed groove are attached to different parts in the feeding device with screws or the like. Since the configuration is adopted, it is necessary to remove the feeding rotating body in addition to the above-described components during maintenance, and there is a problem that maintenance becomes complicated.

  The subject of this invention is providing the direct seeding machine provided with the seed feeding apparatus which improved the maintainability in cleaning etc. of a feeding rotary body while dropping a fixed quantity of seeds to a farm field at a fixed timing.

  The above problem is solved by the following means.

The invention according to claim 1 is provided with a feeding device (6) for sowing seeds in the field at the rear of the body of the traveling vehicle, and provided with a seed tank (5) for storing seeds on the upper portion of the feeding device (6), A feeding rotary body (19) in which a plurality of seed grooves (19b) into which seeds enter into the feeding device (6) is formed on the outer peripheral surface is provided, and the feeding rotary body (19) is provided above the feeding rotary body (19). In the direct seeding machine, the support case (50 ) is provided with a cleaning member (23) that is in contact with the vicinity of the outer periphery above the feeding rotary body (19 ). to set the mounting member (50a) for attaching the base of the cleaning member (23) only, drop under the regulatory member to the outer circumferential surface of the lower than the drop position seeds falling from the seed groove (19b) of said feeding rotary body (19) as the tip portion (4 2) is reached, drop under the regulatory member 42) is provided, provided along the outer peripheral surface feeding rotary body than fall adjustment member seeds groove (seeds fall preventing member covering the 19b) (41) (42) (19) side of said feeding rotary body (19) The direct sowing machine was characterized.

According to the second aspect of the present invention, the feeding rotary body (19) is located immediately before the drop position where the seed falls from the seed groove (19b) of the feeding rotary body (19) and more than the tip of the seed fall prevention member (41). The direct seeding machine according to claim 1 , wherein the drop adjusting member (42) is provided so that the tip of the drop adjusting member (42) is positioned on the lower side in the rotational direction of 19) .

According to a third aspect of the present invention, a protrusion (51) is provided on each of the outer peripheral surfaces on the upper side in the rotational direction of the seed groove (19b) of the feeding rotary body (19), and the feeding rotary body (19) is provided with the protrusion. body (51) is disposed at a position in contact with the drop under the control member (4 2), drop adjustment member (42) is that it is configured to separate from the rotating body when pressed by the protrusions (51) and feeding (19) A direct seeder according to claim 1 or claim 2 characterized in that.

According to a fourth aspect of the present invention, the support case (50) is provided with a cleaning brush (60) for removing dirt inside the empty seed groove (19b) separately from the cleaning member (23) . The direct seeder according to any one of claims 1 to 3, wherein the direct seeder is provided.

  According to the first aspect of the present invention, when the maintenance of the feeding rotary body (19) is performed, the attachment member (50a) provided with the cleaning member (23) is attached to the support case (50), and this cleaning member ( 23) When the end portion side of 23) enters the seed groove (19b) of the feeding rotary body (19) and the feeding rotary body (19) is rotated, seeds and impurities remaining in the seed groove (19b) can be removed. This eliminates the need for the operator to disassemble the seeder, remove other parts, take out the feeding rotary body (19) and clean it, greatly reduce the labor of the operator, and remove extra parts. There is no need and maintenance is improved.

  When the cleaning member (23) is provided during the sowing operation, the cleaning member (23) scrapes the upper part of the seed in the seed groove (19b) of the feeding rotary body (19) and seeds in the seed groove (19b). Since the amount is constant, the amount of seeds sown in the field is unlikely to vary, and the vegetation density of the seedlings in the entire field can be made substantially uniform, so that the sunlight is uniformly hit and the growth is stable, and the ventilation is As it improves, pests are less likely to occur and the yield is stable.

Furthermore, by providing the highest under the control member (4 2), because it is possible to place the seeds fall to the lower end side of the drop under the control member of this (4 2) from the seeds groove (19b), A certain amount of seeds can be regularly fed below the feeding rotary body (19), so that the seeds can be seeded regularly in the field, and the efficiency of the weeding and harvesting operations in the subsequent process is improved.

Further, by adjusting the position at which the seed falls from the supply rotary member (19) in the drop under the control member (4 2), it can be prevented from being diffused around when the seed falls, a certain amount of seeds It is possible to regularly feed the seeds under the feeding rotary body (19) so that the seeds can be seeded regularly in the field, and the efficiency of post-weeding and harvesting operations is improved.

Further, by seed from the rotating direction upstream side of the feeding rotary body than drop under the position of the seed (19) is provided with seeds fall preventing member (41) to prevent falling, seed drop under the regulatory member (4 Since the seedlings are sown in the field from the fall position determined in 2) and the vegetation is vegetated in a substantially straight line for each row , the efficiency of the post-stage harvesting weeding and harvesting operations is improved.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, immediately before the seed drop position of the feeding rotary body (19) and more than the tip of the seed fall prevention member (41) By providing the drop adjusting member (42) so that the tip of the drop adjusting member (42) is positioned on the lower side in the rotation direction of the feeding rotating body (19), the drop adjusting member (42) is formed into the seed groove (19b). And the seed fall prevention member (41) have a function of temporarily receiving seeds that have fallen from between them. Then, the temporarily received seeds are simultaneously lowered from the gap formed between the drop adjusting member (42) and the seed groove (19b) by the rotation of the feeding rotary body (19) to the lower side of the feeding rotary body (19). Fall.
  Therefore, the seeds in the seed groove (19b) are not fed at an arbitrary timing by this series of seed feeding processes, and the seeds dropped from the fall adjusting member (42) are maintained smoothly and regularly. It is possible to sow in the field.

According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2 , the protrusion is formed on the outer peripheral surface of the feeding rotary body (19) and on the upper side in the rotation direction of the seed groove (19b). by forming the body (51), feeding the rotary member (19) projecting body rotating (51) is in contact with the drop under the control member (4 2), drop under the regulatory member (4 2) is the protrusion pressed (51), feeding the interval portion seeds falling down occurs by reliably separated from the rotating body (19), with seeds and drop under the regulatory member in the seed groove (19b) (4 2) Since the received seeds can be fed simultaneously downward from the feeding rotary body (19) from this interval portion, a certain amount of seeds are regularly fed out below the feeding rotary body (19), and the seeds are removed from the field. So that weeding and harvesting operations in the subsequent process are more efficient. That.

According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3 , dirt such as powder adhered to the empty seed groove (19b). can be easily removed by the cleaning brush (60) to and that Do.

It is a side view of the feeding device for seed feeding of the direct seeding machine which is one embodiment of the present invention. It is a top view of the direct seeding machine of FIG. FIG. 3 is an enlarged view of the vicinity of the float in FIG. 2. 1 is a side cross-sectional view (FIG. 4 (a)) of a feeding device provided with a seed drop prevention member, a shutter, and a receiving net in the vicinity of the feeding rotary body of the direct seeding machine of FIG. (FIG. 4B). FIG. 5 is a side sectional view (FIG. 5 (a)) provided with a protrusion on the feeding rotary body of the seed tank unit of the direct seeding machine shown in FIG. 1 and an arrow view (FIG. 5 (b)) of FIG. . It is a sectional side view of the feeding apparatus provided with the shutter and the adjusting screw in the vicinity of the feeding rotary body of the seed tank part of the direct seeding machine shown in FIG. It is a sectional side view of the drawing | feeding apparatus provided with the rotary body which has elasticity so that it may contact the delivery rotary body of the seed tank part of the direct seeding machine shown in FIG. It is a sectional side view of the feeding apparatus provided with the cleaning brush on the feeding rotary body side surface of the seed tank part of the direct seeding machine shown in FIG. It is a sectional side view of the feeding apparatus provided with the air nozzle on the side of the feeding rotary body of the seed tank part of the direct seeding machine shown in FIG. It is a sectional side view of the feeding apparatus provided with the brush set only for a groove cleaning in the upper part of the feeding rotary body of the seed tank part of the direct seeding machine shown in FIG. It is a sectional side view of the feeding apparatus provided with the magnet in the vicinity of the feeding rotary body of the seed tank part of the direct seeding machine shown in FIG.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in the side view of the direct seeding machine in FIG. 1, the traveling vehicle body 1 is provided with left and right front wheels 10 and 10 ′ for steering and left and right rear wheels 11 and 11 ′ for propulsion, and a central engine room (referred to as an engine). In some cases, the control seat 13 is arranged on the top 12 so that it can run while rotating on the paddy field. 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 attached and supported by a direct seeding machine, which will be described in detail below, and is configured to freely move up and down.

  In this specification, the forward direction of the direct seeder is referred to as the front, the backward direction is referred to as the rear, and the left side and the right side in the forward direction are referred to as the left and right, respectively. The feeding device 6 according to the present invention is configured to be provided at the rear portion of the direct seeder.

  Next, the operation relating to the configuration of the direct seeder will be described specifically with reference to the drawings. First, as shown in FIG. 4, the feeding device 6 has a horizontal rotating shaft 19a that can be transmitted with a feeding roll 19 in which a large number of seed grooves 19b are formed on a cylindrical outer periphery facing the lower side of the seed tank 5. Is provided so as to be pivoted on the support case 50, and a transfer pipe (not shown) for conveying seeds is provided below the support case 50 so as to face it. Power from the engine 12 is transmitted to an input sprocket (not shown), and a rotating shaft 19a integrated with the feeding roll 19 rotates.

  And the seed tank 5 is mounted as one of the structural members of the direct seeder connected with the rear part of the traveling vehicle body 1, as shown in FIG. 1 and FIG. Next, as shown in FIG. 1, a cylindrical air chamber 9 is provided laterally behind the lower side of the feeding device 6, and a wind turbine 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. Further, by opening the transfer start end of the transfer pipe 7 and communicating with the air chamber 9, the air (air blow) stored in a high pressure state is sent to the transfer pipe 7 and supplied from above as described above. A predetermined amount of seeds that come is pneumatically conveyed.

  In this way, the transfer pipe 7 communicates with the seeding tubes 2a and 2b provided at the sowing position, with the start end communicating with the air chamber 9 and the terminal end extending toward the side close to the farm scene. Configured. 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. The sowing pipes 2a and 2b are attached to the float 24 that slides while leveling the topsoil, and the ground is leveled as it advances. The seeds are sprayed and sown in a field scene.

  And as shown in FIG. 3, the covering soil board 25 is each arrange | positioned at the back of the sowing line | wire which has provided the sowing pipe | tube 2a, 2b mentioned above. When the farm field is hard, the earth covering plate 25 rotates rightward around the fulcrum shaft 25a and collects the soil at the sowing position, and when the field is soft and mud is in the mud soil, it rotates to the left around the fulcrum shaft 25a. It is configured to move and keep the soil away from the sowing position, and to change and adjust the angle in the left-right direction in plan view. 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 is provided in the control seat 13 and the cable 33 is connected to the sensitivity adjustment lever 48, the operator can easily change the soil cover adjustment amount of the cover plate 25 by operating the sensitivity adjustment lever 48. it can.

Further, a groove generator (not shown) is provided at the positions of the dotted line portions X and Y between the floats 24 and 24 shown in FIG. 2, and a drainage groove is formed in the farm scene as the traveling vehicle body 1 moves forward. You may comprise as follows.
And after the right and left rear wheels 11, 11 ′ have passed, the groover and the sowing tube 2 may be disposed at a relative position along the side of the sowing strip to form a drainage groove substantially in parallel, The context of the mounting position can be freely selected. As shown in FIG. 1, the fertilizer is fertilized from the fertilizer tank 29 to the field through the fertilizer transfer pipe 30 and the fertilizer pipe 31.

  The direct sowing machine configured as described above is placed in a flooded field after the leveling work is completed, and the fertilizer tank 29 is filled with fertilizer, and the seed tank 5 is filled with seeds and advanced to start the sowing work. To do. When the work is started, the seed in the seed tank 5 is provided with a rotating shaft 19a in the horizontal direction as shown in FIG. 4, and a cylindrical feeding roll that rotates around the rotating shaft 19a in the direction indicated by the arrow B. 19, supplied to the seed grooves 19 b on the outer periphery of the cylindrical portion of the feeding roll 19, accumulated, and sent in the rotational direction. At that time, the seeds in the seed groove 19 b are uniformly leveled by the brush 23 at the upper part of the rotation of the feeding roll 19 to be quantified, and the feeding start end of the lower transfer pipe 7 is rotated with the rotation of the feeding roll 19. Falls on the part. At that time, the compressed air generated by the wind turbine 8 is stored in the air chamber 9 and flows into the communicating transfer pipes 7.

  In this way, the seeds are pneumatically conveyed through the transfer pipe 7 by the compressed air blown from the air chamber 9, reach the seeding tubes 2 a and 2 b on the tip side, and are ejected and seeded on the field after leveling by the float 24. . 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 direct sowing machine performs sowing work on a field scene that has been submerged as the traveling vehicle body 1 moves forward by the above-described method.

  A brush 23 for brushing a part of the surface of the feeding roll 19 is provided on the upper part of the feeding roll 19. The brush 23 has a function of sweeping seeds in the seed groove 19b to make the amount of seeds in the seed groove 19b uniform and sweeping seeds attached to the surface of the feeding roll 19. The length from the base portion to the end portion of the cleaning member 23 is set such that when the attachment member 50 a is attached to the support case 50, the end portion side of the cleaning member 23 enters the seed groove 19 b of the feeding rotary body 19.

  4A shows a longitudinal sectional view of the feeding device 6 in which the feeding roll 19 and the brush 23, the seed guide 41, the first shutter 42, and the receiving net 56 are installed. Moreover, FIG.4 (b) is an arrow line view of the supply roll 19 from the arrow A direction of Fig.4 (a).

  In this embodiment, four seed grooves 19 b are provided at equal intervals on the outer periphery of the feeding roll 19. Further, the brush 23 for stirring the seed in the seed groove 19b covers the upper outer peripheral surface of the feeding roll 19 with the brush surface in the left-right direction of the feeding roll 19 and attaches the support case 50 on the upper side of the feeding roll 19 It is installed on the plate 50a.

  Further, the base of the first shutter 42 is suspended from the mounting plate 50a of the support case 50, and the seed falls from the seed groove 19b in the vicinity of the outer periphery of the feeding roll 19 below the rotating shaft 19a and by the rotation of the feeding roll 19. The first shutter 42 is positioned so that the tip of the first shutter 42 reaches below the position of the seed groove 19b.

Seeds guides 41 are fixed to suspending the base in the vicinity of the brush 2 3 of the upper case mounting plate 50a of the feed roll 19, a middle portion of about 1mm between the outer peripheral surface of the feed roll 19 It is installed so as to provide a gap, and the distal end portion of the seed guide guide 41 is positioned immediately before the rotational direction of the distal end portion of the first shutter (fall adjustment member) 42.

  In the above configuration, first, the seed stored in the seed tank 5 enters the seed groove 19b positioned on the uppermost side of the rotating feeding roll 19. Thereafter, as the feeding roll 19 rotates, the seeds in the seed grooves 19b are stirred by the brush 23, and the seeds in the seed grooves 19b are stirred, so that a substantially uniform amount of each seed groove 19b is obtained. The seeds accumulate and are sent downward as the feeding roll 19 rotates. The seed guide 41 is installed so as to cover the seed groove 19 b and to provide a gap of about 1 mm between the outer periphery of the feeding roll 19. At this time, the seed guide 41 is installed on the case mounting plate 50a on which the brush 23 is installed above the feeding roll 19, and reaches a height position almost the same as the height of the rotating shaft 19a of the feeding roll 19 from the installation location. (See FIG. 4 (a)), the seed in the seed groove 19b is held in the seed groove 19b by the seed guide guide 41 during the conveyance, and is removed from the groove 19b. It is conveyed to the tip of the seed guide 41 with the rotation of the feeding roll 19 without falling down.

  As described above, since the tip of the first shutter 42 is located below the tip of the seed guide guide 41 and close to the outer peripheral surface of the feeding roll 19, the first shutter 42 is connected to the seed groove 19b. It has a function of temporarily receiving seeds dropped from between the seed guides 41. The seed that has fallen onto the first shutter 42 from the seed groove 19b has a gap between the first shutter 42 and the seed groove 19b after the seed groove 19b reaches the tip of the first shutter 42 by the rotation of the feeding roll 19. From the gap and fall downward from the feeding roll 19.

  In the present embodiment, the seeds in the seed groove 19b are not fed out at an arbitrary timing and the seeds dropped from the first shutter 42 by the above-described feeding roll 19 and a series of seed feeding processes by the peripheral members. The regularity can be maintained smoothly and planted in the field without hitting the wall surface of the feeding device 6 below the feeding roll 19.

  Further, since the brush 23, the seed guide 41 and the first shutter 42 are integrally attached to the support case 50, the members 23, 41 and 42 are also removed when the support case 50 is removed from the traveling vehicle. It becomes possible to remove as a single unit, and the troublesomeness of removing the members and the like inside the feeding device 6 in addition to the feeding roll 19 at the time of maintenance inside the seeding machine 6 as in the past can be eliminated.

  In the embodiment in FIG. 4, the height of the seed groove 19 b after feeding out the seed is approximately the same as the height of the feeding rotary shaft 19 a on the side where the seed roll 19 moves upward from below the feeding roll 19 as the feeding roll 19 rotates. Receiving net so that seeds do not fall out from the gap between the side wall of the support case 50 in the rear of the feeding device 6 and the vicinity of the outer circumferential surface of the feeding roll 19 at the position of the outer circumferential surface of the feeding roll 19 at the vertical position. The base 56 was installed on the wall surface of the support case 50 with the 56 facing horizontally.

  When the seed coated with the fertilizer is used for sowing, the receiving net 56 prevents the fertilizer powder (calpa powder) generated by peeling off the fertilizer from the seed from being deposited in the seed tank 5, and at the same time on the receiving net 56. This is a member installed to remove the fertilizer powder collected on the receiving net 56 from the inside of the seed tank 5 after the fertilizer powder is stored in the seed tank 5. Accordingly, the mesh size of the receiving net 56 is set to be smaller than the seed so that the calpa powder can fall off but the seed does not fall out.

  In the embodiment shown in FIG. 5 (a), the protrusions 51 are provided on the left and right outer peripheral surfaces of the seed groove 19 b on the outer peripheral surface of the feeding roll 19 in the feeding device 6 on the front side in the rotational direction, respectively. Along with this, it is a longitudinal sectional view of the feeding device 6 to which the second shutter 43 installed as a pivotable fulcrum is fixed on the inner wall of the support case 50 of the feeding device 6 on the side where the seed is conveyed by the seed groove 19b.

  Since the protrusion 51 is installed for the purpose of feeding seeds from the gap between the outer peripheral surfaces of the second shutter 43 and the feeding roll 19 as will be described later, the size of the protrusion 51 is the second shutter. It is not so large that the rotation of the feeding roll 19 is inhibited by contact with 43, and it is not so small that seeds cannot pass through.

  FIG. 5B is an arrow view of the arrow A in FIG. The other end of the second shutter 43 is installed below the rotating shaft 19 a of the feeding roll 19 so as to collide with the protrusion 51. In FIG. 5B, the position of the tip of the second shutter 43 is indicated by a dotted line. An arrow B indicates the rotation direction of the feeding roll 19.

  In this configuration, when the specific seed groove 19b of the feeding roll 19 is positioned below the seed tank 5 by the rotation of the feeding roll 19, the seeds stored in the seed tank 5 are inside the specific seed groove 19b. Get in. After the seeds are filled in the seed grooves 19b, the upper part of the seeds that are piled up in the seed grooves 19b are stirred by the brush 23, and the amount of seeds in the seed grooves 19b becomes constant. It is conveyed below the feeding roll 19 by the rotation of 19. Some seeds that have fallen from the seed groove 19b in the course of conveyance fall to the upper part of the second shutter 43 and are held.

  As the feed roll 19 rotates, the tip of the second shutter 43 is pushed by the protrusions 51 provided on the left and right sides of the seed groove 19b. When the second shutter 43 is pressed, a gap is generated between the outer peripheral surface of the feeding roll 19 and the second shutter 43, and the seed in the seed groove 19b and the seed held on the second shutter 43 are fed out from the gap. It is fed out under the roll 19 all at once.

  Through the above series of operations, a certain amount of seeds are regularly sown in the field at regular intervals, and the efficiency of the subsequent crop recovery can be increased.

  In this embodiment, when the second shutter 43 reaches the upper side of the seed groove 19b by the rotation of the feeding roll 19 without installing the protrusion 51 on the outer periphery of the feeding rotating body 51, the second shutter 43 and It is good also as a structure which takes the timing of release of a seed from the seed groove | channel 19b by delivering a seed from the clearance gap produced between the outer peripheral surfaces of the feeding roll 19. FIG.

  In the embodiment shown in FIG. 6, in the feeding device 6, the second shutter 43 can swing in the vicinity near the position where the seed conveyed by the seed groove 19 b of the feeding roll 19 falls as the feeding roll 19 b rotates. It is installed on the side wall of the support case 50 of the feeding device 6. In the vicinity of the lower part of the installation site of the flat plate-like second shutter 43, the tip of the screw member 53 that can adjust the protruding length of the screw shaft installed on the side wall surface of the case facing the outer peripheral surface of the feeding roll 19 is the second shutter. It is supported by contacting the back surface of 43. At this time, the installation angle of the second shutter 43 can be adjusted by the length of the screw shaft of the screw 53, and the second shutter 43 can be adjusted in accordance with the drop speed of the seed that changes according to the change in the rotation speed of the feeding roll 19. By adjusting the inclination angle of the shutter 43, the direction in which the seeds falling from the feeding roll 19 are scattered can be determined in a certain direction.

  In the embodiment shown in FIG. 7, in the feeding device 6, an elastic rotating body 54 having a rotating shaft 54 a at the same height as the feeding rotating shaft 19 a on the side wall of the support case 50 and having a shorter radius than the feeding roll 19 is fed. In this configuration, the outer surface of the roll 19 and the outer surface of the elastic rotator 54 are in contact with each other so as to face each other.

  In this embodiment, the elastic rotating body 54 is installed on the side where the seed is conveyed by the seed groove 19 b of the feeding roll 19, and the rotation of the elastic rotating body 54 is in contact with the feeding roll 19. In this configuration, the roll 19 can be rotated using the rotational power.

  By installing the elastic rotator 54, the seed conveyed in the seed groove 19 b is received by the outer peripheral surface of the elastic rotator 54 even if the seed spills from the seed groove 19 b at the upper part of the position in contact with the outer peripheral surface of the feeding roll 19. After that, the seed spilled when the seed groove 19b is moved to a position where the feeding roll 19 and the elastic rotating body 54 are in contact with each other by the rotation of the feeding roll 19, and enters the seed groove 19b again and is fed below the feeding roll 19. .

  According to the feeding method using the rotating body 54 of the present embodiment, the seed falling from the seed groove 19b is carried out as in the feeding method using the first shutter 42 and the second shutter 43 shown in FIGS. Since the stress applied to the seed can be reduced without colliding with the first shutter 42 and the second shutter 43 of the example, the germination rate of the seed is improved and the crop yield is improved. Further, even if the seed spilled from the feeding roll 19 is sandwiched between the outer circumferential surface of the feeding roll 19 and the outer circumferential surface of the elastic rotating body 54, the seeds are sandwiched because the elastic rotating body 54 is composed of an elastic member. Will not be destroyed.

The embodiment shown in FIG. 8 is for removing the soil inside the seed groove 19b which has become empty after the seed roll 19b is rotated by the seed groove 19b in the feeding device 6 so that seeds are fed below the feeding roll 19. In addition, the cleaning brush 60 is configured to be installed at the same height as the feeding rotary shaft 19 a of the cover 50.
In the present embodiment, the hair of the installed cleaning brush 60 has a length that reaches the inner surface of the seed groove 19b, and the cleaning brush 60 is suitable for cleaning the seed groove 19b that is emptied after the seed is fed. It is installed on the side wall of the cover 50.
According to the configuration of the present example, calpa powder (in particular, fertilizer powder generated by peeling off fertilizer from seeds when seeds coated with fertilizer are used for sowing), etc., attached in the empty groove Dirt can be easily removed by the cleaning brush 60.

  In the embodiment shown in FIG. 9, a groove cleaning air nozzle 61 for cleaning the seed groove 19b of the feeding roll 19 is installed in place of the groove cleaning brush 60 in the embodiment shown in FIG. By installing the air nozzle 61, after seeds are fed from the feeding roll 19, dirt such as the calper powder adhering to the empty seed groove 19 b can be easily removed by the air pressure of the air nozzle 61 from the air supply source 63. Can be removed.

  In addition, the brush 23 installed in the upper part of the supply roll 19 shown in FIG. 8, FIG. 9 is installed for the same purpose as the brush 23 shown in FIG. In other words, the brush is used to make the seed amount in the seed groove 19b uniform and to sweep the seeds attached to the surface of the feeding roll 19.

  In the embodiment shown in FIG. 10, in the feeding device 6, the seed groove 19 b of the feeding roll 19 is replaced with an upper part of the feeding roll 19 in the feeding device 6 instead of the cleaning members 60 and 61 described in FIGS. 8 and 9. In this structure, the groove cleaning brush set 62 for cleaning is installed on the feeding roll 19. The cleaning brush set 62 is installed by removing the seed tank 5 when cleaning the feeding device 6 during maintenance. When the feeding roll 19 is rotated in a state where the cleaning brush set 62 is installed, dirt such as the calper powder attached in the groove can be easily removed.

Contact name but in the embodiment shown in FIG. 10 illustrates an example of not using the first shutter 42 and second shutter 43 shown in FIGS. 4 to 6, or the first shutter 42 shown in FIGS. 4 to 6 It is desirable to mount the two shutters 43.

  FIG. 11 shows that in the feeding device 6, the iron powder peeled off from the iron-coated seeds is magnetically installed by installing a magnet 70 on the side wall of the support case 50 near the feeding roll 19 at the bottom surface of the seed tank 5. This is an embodiment in which the iron powder is easily collected and collected, and a seed outlet 64 is provided to allow the seed in the feeding device 6 to be taken out from the outside.

  Here, the “iron-coated seed” refers to an iron-coated seed in which iron powder is coated around the seed so that the bird cannot eat the seed. When the iron-coated seeds are fed out by a conventional direct seeding machine, there is a problem that the iron powder peeled off from the iron-coated seeds is firmly fixed to the airframe.

  Therefore, by installing a magnet 70 in the vicinity of the feeding roll 19 in the case of the feeding device 6, the iron powder peeled off in the seed tank 5 is attracted to the magnet 70 before entering the seed groove 19 b of the feeding roll 19. Thus, the iron powder that has been peeled off after completion of the work can be easily removed.

  The present invention is not limited to a direct sowing machine, but is applied to a fertilizing device that is applied to a rice transplanter that transplants rice seedlings in a field and sprays fertilizer on the field, a seeding machine that seeds a special box for growing rice seedlings, etc. This is a feeding device that can be applied.

DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 2 Seeding pipe 3 Grooving device 5 Seed tank 6 Feeding device 7 Transfer pipe 8 Wind-up wheel 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 19b Seed groove 19 Feeding rotary body 19a Rotating shaft 21 Rotation 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 40 Hard / soft sensor 41 Seed drop prevention member 42 First shutter (fall adjustment member) (fixed type)
43 Second shutter (fall adjustment member) (rotatable type)
48 Sensitivity adjustment lever 50 Case 51 Protrusion 53 Inclination angle adjustment member 54 Rotating body 56 Receiving net 60 Groove cleaning brush 61 Groove cleaning air nozzle 62 Groove cleaning brush set 63 Air supply source 64 Seed outlet 70 Magnet

Claims (4)

A feeding device (6) for sowing seeds in the field is provided at the rear of the body of the traveling vehicle, and a seed tank (5) for storing seeds is provided above the feeding device (6), and the inside of the feeding device (6). A feeding rotator (19) having a plurality of seed grooves (19b) into which seeds enter is formed on the outer peripheral surface, and a support case (50) covering the feeding rotator (19) is provided above the feeding rotator (19). In the direct seeding machine provided with a cleaning member (23) in contact with the vicinity of the outer periphery above the feeding rotating body (19) on the support case (50),
Said set of mounting members (50a) for attaching the base of the support case (50) to the cleaning member (23) only, the outer periphery of the lower than the drop position where the feeding seed from the seed groove of the rotating body (19) (19b) falls as the distal end portion of the drop under the control member (4 2) reaches the surface, providing a drop under adjustment member (42),
A seed fall prevention member (41) covering the seed groove (19b) along the outer peripheral surface of the feeding rotary body (19) is provided closer to the feeding rotary body (19) than the fall adjusting member (42). Direct sowing machine. Just before the drop position where the seed falls from the seed groove (19b) of the feeding rotary body (19), and falls to the lower side in the rotational direction of the feeding rotary body (19) from the tip of the seed fall prevention member (41). The direct seeding machine according to claim 1 , wherein the drop adjusting member (42) is provided so that the tip of the adjusting member (42) is positioned . Rotating direction upstream side, respectively protrusion on the outer peripheral surface (51) provided in said feeding rotary body (19) and projecting Okoshitai (51) drop under the regulatory member seeds groove of the feeding rotary body (19) (19b) (42 ) is placed in contact with the position ,
The direct seeding machine according to claim 1 or 2 , wherein the drop adjusting member (42) is configured to be separated from the feeding rotary body (19) when pressed by the protrusion (51) . Said support casing (50), the cleaning member (23) apart from claim 1, characterized in that a cleaning brush (60) for removing the internal contamination of seeds grooves emptied (19b) The direct seeder according to claim 3 .

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