JP5537381B2 - Working machine - Google Patents

Description

  According to the present invention, the granular material stored in the granular material tank is fed out by a feeding rotary body that can be driven and rotated, and the granular material fed out by the feeding rotary body is passed through a drop supply path in which a cylindrical body is formed. The present invention relates to a working machine in which a working unit provided with a powder and granular material supply device for feeding to a farm is connected to a rear part of a vehicle body.

  Conventionally, as shown in Patent Document 1, for example, there has been a working machine in which a seeding device is connected to the rear part of a traveling machine body, and the seeding device is provided with a hopper, a feeding mechanism, a grooving device, and a soil covering member. In this working machine, the seed hopper is fed out from the hopper by the feeding mechanism, the seed pod fed out by the feeding mechanism is sown in the buried groove formed on the surface by the grooving device, and the buried groove seeded with the seed potato is backfilled by the soil covering member. It is.

JP 2007-209260 A

  In the conventional working machine described above, regardless of the type of the granular material supplied to the field by putting it in the hopper, the soil covering for the granular material supplied to the field is performed. It has become unsuitable for supplying powdery grains such as seeds that have been subjected to iron coating so that no soil covering is required.

  The object of the present invention is not only to perform the powder supply operation in a supply form adapted to the powder and the like that have been subjected to the Calper coating process, but also to the seed and the like that have been subjected to the iron coating process. It is providing the working machine which can also perform the powder supply operation | work by the supply form adapted to the powder granular material.

The first aspect of the present invention is a dropping supply path in which a granular material stored in a granular material tank is fed by a feeding rotary member that can be driven and rotated, and a cylindrical member is formed of the granular material fed by the feeding rotary member. A working unit connected to the rear part of the vehicle body, the working unit provided with a powder supply device for supplying to the field through
The grooving device for forming a groove for dropping the granular material supplied by the granular material supply device in the field is in an active state, and the covering material for digging in the groove in which the granular material has been dropped is in an active state. The first work form, the second work form in which the groover is in an active state, and the soil covering body is in a released state, and the third work in which the groove creator and the soil covering body are in a released state. The form can be displayed freely.

  According to the configuration of the first aspect of the present invention, if the first working mode appears, a groove for dropping the granular material supplied by the granular material supply device is formed in the field when the grooving device becomes active, The soil covering body is put into an active state and the soil is brought into the groove where the granular material has fallen, so that the granular material supplied to the farm can be embedded with high accuracy. If the 2nd operation form appears, a groove making machine will be in an operation state, a groove which makes a granular material supplied by a granular material supply device fall will be formed in a field, and a covering soil will be in a release state, and powder It is possible to make a state where forced soiling is not performed while the granular material supplied to the field from the granular material supply device is located in the groove without performing the soil gathering on the groove where the granular material has fallen. If the third working mode appears, the grooving device is in the released state and does not form a groove in the field, and the covering body is in the released state and does not perform soiling, and is supplied from the granular material supply device to the field. The powder and granular material can be placed in the field and not forcedly ground.

Therefore, it is possible to supply working at a feed form a such granular material of seeds that local path over the coating process has been performed is precisely embedded adapted to the granular material so as not Tsuibama birds. In addition, it is possible to perform a supply operation in a supply state adapted to the granular material so that it is not covered with soil and is easily covered with the powder, such as a seed cake subjected to iron coating treatment. Furthermore, in the case of a granular material such as a seed meal that has been subjected to iron coating treatment, it is located in the groove while making the granular material easy to touch the air by selecting the second work mode and making it appear strong. By making the position difficult to shift from the supply location even when the wind blows, or by making the third work mode appear and appear, it is possible to expose the granular material to the field scene and make it easier to touch the sunlight. it can.

  In the second aspect of the invention, the groove producing device is communicated with the cylindrical body so as to be adjustable up and down.

  According to the structure of this 2nd invention, the depth of the groove | channel formed in a farm field by a grooving machine can be changed, without changing the ground height of a cylindrical body.

  Therefore, when the varieties and properties of the granular material are different, the granular material is supplied from the ground by the granular material supply device, for example, grooves with different depths while improving the seeding accuracy. Can be supplied to.

  In the third aspect of the invention, the support frame that supports the groover and the covering body passes through the front portion of the cylindrical body in the lateral direction of the working unit, and supports the groover, and the cylinder A rear frame that supports the covering body by passing in the lateral direction of the working portion in the vicinity of the rear of the shaped body, and a connecting frame that connects the front frame and the rear frame.

  According to the configuration of the third aspect of the invention, even if a stone or a tool is present in the front or rear of the cylindrical body or may be approached, the front frame or the rear frame is used to guard against the cylindrical body. Can do.

  Therefore, it is possible to prevent the tubular body from being deformed or damaged at low cost by using the groover and the support frame of the covering body as a guard.

  In the fourth invention, the rear frame is configured to be switchable to a maintenance state in which the rear side of the cylindrical body is opened.

  According to the configuration of the fourth aspect of the invention, the rear side of the tubular body can be opened by switching the rear frame to the maintenance state, and the rear frame and the covering soil body do not become an obstacle to operations such as cleaning and replacement of the tubular body. Can be.

  Therefore, while the rear frame can be used as a guard for the rear side of the cylindrical body, the maintenance of the cylindrical body is facilitated by switching the rear frame to the maintenance state.

  In the fifth aspect of the invention, the cylindrical body is provided with a rearward opening.

  According to the configuration of the fifth aspect of the present invention, it is possible to see through the rearward opening of the cylindrical body from the rear of the working unit whether the granular material supplied to the field by the granular material supply device is dropped.

  Therefore, the auxiliary worker can easily confirm from the rear whether or not the granular material is supplied by the granular material supply device, and the occurrence of a supply error due to the cutting of the granular material can be prevented.

It is a side view which shows the whole working machine. It is a rear view which shows the whole working part. It is a side view which shows a part of working part. It is a top view which shows a part of working part. It is a rear view which shows a part of working part. It is a rear view which shows the site | part to which the grooving device and the covering body of a working part are attached. It is a vertical side view which shows a granular material supply apparatus. It is a vertical rear view which shows a granular material supply apparatus. It is a side view in the state where the 2nd work form of the working part was revealed. It is a top view in the state where the 2nd operation form of the operation part was revealed. It is a side view in the state where the 3rd work form of the working part was revealed. It is a top view in the state where the 3rd work form of the work part was revealed. It is a perspective view which shows a support frame. It is a perspective view in the state where the rear side of the cylindrical body of the rear frame was opened. It is a side view which shows the connection structure of a support frame. FIG. 16 is a sectional view taken along the line XVI-XVI in FIG. 15. It is a side view which shows the attitude | position change of a covering body. It is a side view which shows the state which open | released the rear side of the cylindrical body. It is a perspective view which shows a part of working part provided with another implementation structure.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an entire working machine according to an embodiment of the present invention. As shown in this figure, the working machine according to the embodiment of the present invention is self-propelled by a pair of left and right steering operations and front wheels 1 and 1 which can be driven and a pair of left and right rear wheels 2 and 2 which can be driven. A self-propelled vehicle, a working unit S connected to a rear portion of a body frame 3 of the self-propelled vehicle via a link mechanism L, and a fertilizer application device C having a fertilizer tank 71 disposed at a rear portion of the vehicle body of the self-propelled vehicle. It is prepared.

  The self-propelled vehicle includes an engine 5 provided at the front part of the vehicle body. The driving force output from the engine 5 is input to a transmission case 6 located at the front part of the vehicle body. The driving force input to the transmission case 6 is input to the transmission case. 6 is transmitted to the front wheel drive case 7 from the traveling mission located inside the vehicle 6 to drive the pair of left and right front wheels 1, 1, and the driving force from the engine 5 input to the mission case 6 is transmitted from the traveling mission to the rotating shaft 8. To the rear wheel drive case 9 located at the rear of the vehicle body to drive the pair of left and right rear wheels 2 and 2. The self-propelled vehicle includes a driving unit 4 having a driving seat 4a located at the rear of the vehicle body, and is a riding type so as to ride on the driving unit 4 for driving. The self-propelled vehicle receives the driving force from the engine 5 input to the mission case 6 from the work mission located inside the mission case 6 to the rotary shaft 11 located below the body frame 3 and the rear of the rotary shaft 11. The power is transmitted to the input shaft 42 (see FIG. 3) of the drive mechanism D of the working unit S via the transmission shaft 12 extending from the end portion toward the rear of the vehicle body.

  FIG. 2 is a rear view showing the entire working unit S. FIG. 3 is a side view showing a part of the working unit S. FIG. 4 is a plan view showing a part of the working unit S. FIG. 5 is a rear view showing a part of the working unit S. As shown in these drawings and FIG. 1, the working unit S includes a working unit frame 25 having a front end connected to a lower end of the rear link 17 in the link mechanism L, and a lower part of the working unit frame 25 in the vehicle body lateral direction. It is attached to four grounding floats 20 that are mounted side by side, six powder supply devices A that are mounted side by side on the support frame 26 provided in the working unit frame 25, and a column 66 that is provided to the working unit frame 25. And a pair of left and right groove forming bodies F, F attached to the front portion of the working unit frame 25.

  The link mechanism L includes an upper link 15 and a lower link 16 extending from the rear portion of the vehicle body frame 3 so as to be swingable rearward and a rear link 17 connected to rear ends of the upper link 15 and the lower link 16. I have. A working unit frame 25 is connected to the rear link 17, and the link mechanism L is swung up and down with respect to the vehicle body frame 3 by a hydraulic cylinder 13 connected across the vehicle body frame 3 and the rear link 17. Then, the working unit S is moved up and down to the lowering work position where the four grounding floats 20 are in contact with the field and the ascending non-working position where each grounding float 20 is lifted from the field.

  The rear link 17 supports the working unit frame 25 so that it can roll around the rolling axis X in the longitudinal direction of the vehicle body, and the working unit S becomes horizontal in the lateral direction of the vehicle body regardless of the left-right inclination of the self-propelled vehicle. As described above, the rolling vehicle rolls around the rolling axis X.

When the working machine lowers the working unit S to the lowered work position and runs the self-propelled vehicle, the seeding a for supplying the rice seeds a to the field by six supply by the six granular material supply devices A, and fertilization Fertilizer supply for supplying fertilizer to the 6 seed pods a by the device C, drug spraying operation for spraying a chemical such as weed prevention to the field by the chemical spraying device B, and draining to the field by a pair of left and right grooving bodies F and F Grooving work to form grooves. Seed rice a supplied by the powder or granular material feeding apparatus A is fed to the place where it has been leveled by the passage of the ground float 20.

  As shown in FIGS. 1, 2, and 4, the pair of left and right groove producing bodies F, F are arranged so as to form a drainage groove in the passage trace of the rear wheel 2. The front end sides of the pair of left and right groove producing bodies F, F are supported by the working unit frame 25 via the mudguard plate 30. The mudguard plate 30 receives the mud splashed up by the rear wheel 2 so as not to enter the working unit S.

The fertilizer applicator C will be described.
As shown in FIGS. 1, 2, 3, and 4, the fertilizer application apparatus C includes the fertilizer tank 71, a fertilizer feeding mechanism 73 connected to the lower portion of the fertilizer tank 71, and a fertilizer discharge of the fertilizer feeding mechanism 73. An electric blower 75 connected to the part via a blower pipe 76 is provided. The fertilizer feeding mechanism 73 includes six fertilizer discharge ports (not shown) arranged in the lateral direction of the vehicle body. Each fertilizer discharge port of the fertilizer feeding mechanism 73 is connected to each of six groove-growing fertilizers 77 arranged in the lower part of the working unit S in the lateral direction of the vehicle body via a fertilizer supply hose 74. The fertilizer feeding mechanism 73 is driven by inputting a driving force from the traveling transmission through the input shaft 78.

  The fertilizer application device C feeds the granular fertilizer stored in the fertilizer tank 71 from the fertilizer tank 71 to each fertilizer discharge port (not shown) by the fertilizer feed mechanism 73, and the fertilizer fed to each fertilizer discharge port by the electric blower 75. It is supplied to the grooving fertilizer 77 through the fertilizer supply hose 74 by the supplied conveying air. As shown in FIGS. 2 and 3, the six grooving fertilizers 77 are arranged so as to be located one by one on the slightly lateral side and slightly on the front side of the cylindrical body 56 included in each powder and granular material supply device A. Yes, each grooving fertilizer 77 forms a groove in the field near the lateral side of the seed pod a supplied from the cylindrical body 56 to the field by the granular material supply device A, and the fertilizer supply hose 74 in the formed groove Supply fertilizer.

  Of the fertilizer supply hose 74, a wind exhaust section is provided at a path switching point where the fertilizer is dropped toward the groove fertilizer 77 from a path that sends the fertilizer backward, and the conveying wind is discharged at the path switching point. And if it is comprised so that only a fertilizer may be sent without sending a conveyance wind to the groove fertilizer fertilizer 77, supplying fertilizer, avoiding that a conveyance wind will flow into the cylindrical body 56 of the granular material supply apparatus A. Can do.

The medicine spraying device B will be described.
As shown in FIGS. 1 and 2, the medicine spreader B includes an electric spreader 62 having a spreader case connected to the upper end of the column 66, and a drug tank 61 attached to the upper part of the electric spreader 62. It is prepared. The electric sprayer 62 includes a feeding tray 63 and a rotating sprayer 64 that are rotatably driven inside the sprayer case. The medicine stored in the medicine tank 61 is sprayed by the feeding tray 63 and the rotary sprayer 64. It is scattered outside the machine case and sprayed onto the field after the seed meal a is supplied by each powder and granular material supply device A.

The granular material supply apparatus A will be described.
The six granular material supply devices A are configured to have the same structure. As shown in FIGS. 1, 2, 3, and 5, the powder supply device A includes a feeding case 51 having an upper end connected to a funnel portion 32 a formed at the bottom of the powder tank 32, and a feeding case 51. A cylindrical body 56 attached to the lower end of the cylinder is provided. Each of the powder tanks 32 for the three powder supply devices A on the left side of the working unit and the three powder tanks 32 for the three powder supply devices A on the right side of the work unit includes three corresponding powders. It is comprised in one tank shared by the granular material supply apparatus A. FIG.

  FIG. 7 is a vertical cross-sectional side view showing the granular material supply apparatus A. FIG. FIG. 8 is a longitudinal rear view showing the powder supply apparatus A. FIG. As shown in FIGS. 3 and 5, the feeding case 51 includes a front wall plate portion 51 a having a connecting portion 51 d detachably connected to the support frame 26 in the working portion frame 25 by a connecting bolt 21. A rear wall plate portion 51b having a maintenance opening 108 and a pair of left and right horizontal wall plate portions 51c and 51c having a rotating body support portion 51e are integrally formed of a resin material. It is in a cylindrical shape facing upward and downward, and communicates with the funnel portion 32a of the granular material tank 32 on the upper side and communicates with the cylindrical body 56 on the lower side. The maintenance opening 108 is opened and closed by attaching and detaching the lid 107.

  As shown in FIGS. 7 and 8, inside the feeding case 51, a pair of scraping bodies 53, 54 disposed in the circumferential direction of the feeding rotating body 52 on the upper side of the feeding rotating body 52 and the feeding rotating body 52. Of the pair of scrapers 53, 54, the feeding rotor is located at a position located on the lower side in the feeding rotor rotation direction with respect to the brush portion 54a of the lower scraper 54 located on the lower side in the feeding rotor rotation direction. The feeding guide 80 arranged along the peripheral surface 52 s of 52 and the flow-down guide plate 57 arranged above the feeding rotating body 52 are provided.

  The feeding rotary body 52 includes a pair of left and right side wall plates via a rotation support shaft 59 and a boss member 51f interposed between the rotation support shaft 59 and the pair of left and right side wall plate portions 51c and 51c. The parts 51c and 51c are rotatably supported. The feeding rotary body 52 is driven to rotate in the rotation direction F (see FIG. 7) by the rotation support shaft 59 around the rotation shaft core P which is a vehicle body lateral axis of the rotation support shaft 59. Four feeding recesses 58 are provided on the peripheral surface 52 s of the feeding rotary body 52 so as to be arranged at a predetermined interval in the rotation direction F of the feeding rotary body 52.

  The feeding rotary body 52 is fed out by the upper side sliding body 53 located on the upper side of the feeding rotating body rotation direction of the pair of grinding bodies 53 and 54 and the wall body 51g integrally formed inside the feeding case 51. A supply space 50 for supplying seeds to the recess 58 is formed above the upper end side of the feeding rotary body 52 so as to face the peripheral surface 52 s of the feeding rotary body 52.

  The flow down guide plate 57 includes a guide surface 57a in an inclined posture, is stored in the powder tank 32, and seed potato a flowing down from the powder distribution holes of the lattice body 45 mounted in the bottom of the funnel portion 32a, The guide surface 57a guides the flow to the supply space 50 without flowing between the pair of scrapers 53, 54.

  As shown in FIG. 7, the feeding guide 80 includes a guide surface 81 positioned along the peripheral surface 52 s of the feeding rotator 52, enters the feeding recess 58 of the feeding rotator 52, and is on the lower end side of the feeding rotator 52. The guide surface 81 guides the seed pod a moving to the installed discharge point Z. In other words, the feeding guide 80 allows the seed pod a to be fed from the feeding recess 58 passing through the brush portion 54a of the lower-side scraped body 54 to the discharge point Z even if the feeding recess 58 is turned sideways or downward. It stays in the feeding recess 58 without spilling from the recess 58, and when the feeding recess 58 reaches the discharge point Z and faces downward, the seed soot a is guided to the seed soot a so as to fall and be discharged from the feeding recess 58. Works.

As shown in FIG. 7, scraping member 53 of the upper hand-side is provided with a brush support portion 53b which is supported on the lower end of the falling-guide plate 57, and a brush portion 53a which is embedded in the brush support portion 53b Configured. Scraping member 54 of the lower hand side, and configured to include a brush support portion 54b which is supported through a pivot shaft 72 to the feeding case 51, and a brush portion 54a which is embedded in the brush support portion 54b is there. The pair of slicing bodies 53, 54 is sliced by the brush parts 53 a, 54 a against the seed pod a that has entered the feeding recess 58 of the feeding rotator 52.

  Accordingly, the powder and granular material supply device A is fed and rotated by the power transmitted by the drive mechanism D to the drive gear 86 provided to be rotatable integrally with one end portion of the rotation support shaft 59 so that the rotation support shaft 59 is rotationally driven. The body 52 is driven in the rotation direction F by the rotation support shaft 59, and is set by the volume of the feeding recess 58 through the supply space 50 by the feeding rotary body 52 that rotates the seed meal a stored in the powder tank 32. The set amount is intermittently fed out, and the seed pod a fed out by the feeding rotary body 52 is dropped onto the field and supplied in the form of spot sowing supply.

  That is, the seed soot a stored in the granular material tank 32 and flowing down from the granular material circulation holes of the lattice body 45 attached to the funnel portion 32 a is caused to flow down to the supply space 50 by the flow guide by the flow guide plate 57 and stay. To do. By driving the feeding rotary body 52 in the rotation direction F, each feeding recess 58 moves between the supply space 50 and the discharge point Z. When the feeding recess 58 is located in the supply space 50, the seed pod a of the supply space 50 is introduced and accommodated. The feeding recess 58 containing the seed pod a passes through the brush portions 53a and 54a of the upper and lower side scraped bodies 53 and 54 and is subjected to the scraping action by the brush portions 53a and 54a. Move down the moving path. At this time, even if the feeding recess 58 is turned sideways or downward, the seed soot a does not spill out of the feeding recess 58 due to the guiding action of the guide surface 81 of the feeding guide 80 on the seed soot a. When the feeding recess 58 reaches the discharge point Z, the feeding recess 58 is directed downward and the guiding action by the feeding guide 80 is released, so that the seeds a stored in the feeding recess 58 are transferred from the feeding recess 58 to the inside of the cylindrical body 56. Fall into. The seed pod a that has fallen from the feeding recess 58 falls on the dropping path formed by the cylindrical body 56 while being prevented from being blown by the cylindrical body 56 so as not to be dispersed by receiving wind, and from the groove fertilizer 77. It falls to the field on the slightly rear side and slightly on the side.

  When the conveying wind sent to the fertilizer supply hose 74 is configured to be introduced into the cylindrical body 56, the wind from the electric blower 75 is utilized for sowing supply, and the sowing seed a from the feeding rotary body 52 is supplied to the field. be able to.

  As shown in FIG. 7, the feeding guide 80 includes a guide main body 82 that forms a guide surface 81, and a sound absorbing material 83 that is provided on the opposite side of the guide main body 82 from the side where the guide surface 81 is located. It is configured.

Guide body 82 is constituted by a stainless steel plate bent end portion 82a to the lower end 90a is connected by a connecting screw 91 of the support 90 extending from the brush supporting lifting part 54b of the scraping member 54 of the lower hand side downward direction It is. The guide main body 82 includes a bent guide portion 82b that makes it easy for the seed pod a to enter between the rotary body 52 and the guide main body 82. The sound absorbing material 83 is in close contact with the surface of the guide body 82 opposite to the side on which the guide surface 81 is formed.

  Therefore, in the feeding guide 80, when the seed pod a is a seed pod that has been subjected to iron coating processing, the sound absorbing material 83 attenuates the sound generated when the seed pod a and the guide surface 81 rub against each other, and performs a guiding action on the seed pod a.

  Since the feeding guide 80 is supported by the support 90 at the bent end portion 82a on the lower end side of the guide body 82, the upper side of the feeding guide 80 in the feeding rotating body rotation direction with respect to the support 90 is the feeding rotating body rotation direction. The lower rotary side is in a state of swinging in the radial direction of the feeding rotary body 52 with the side positioned on the lower side as the swing fulcrum side.

Thus, seeds a housed the feeding recess 58 passes through the brush portion 54a of the scraping member 54 of the lower hand side, enters the movement path for receiving a guiding action by the feeding guide 80, the discharge point Z this movement path Move towards. Even if the seed pod a entering the movement path is in a bulky state in which a part of the seed potato a protrudes outside the feeding recess 58 due to a scraping failure caused by the scraping bodies 53 and 54, the feeding guide 80 rotates the feeding rotary body. The side located on the upper side in the direction and opposite to the swinging fulcrum side is easily pressed and swung to the side away from the feeding rotary body 52, so that the seed surface a and the guide surface 81 of the guide main body 82 can be obtained. It enters the movement path while suppressing the friction of each other to a weak state. The seed soot a that moves along the movement path toward the discharge point Z moves while eliminating the bulky state by receiving the guiding action by the guide body 82 in a state where the pressing action by the guide body 82 gradually increases.

  The support 90 is made of a sheet metal member, and easily swings in the radial direction of the feeding rotary body 52 with a portion connected to the brush support portion 54b of the scraped body 54 as a swing fulcrum. The feeding guide 80 prevents the increase in the holding force of the seed pod a by the guide main body 82 and the feeding rotary body 52 even by the swinging deformation of the support 90, and weakens the friction between the seed potato a and the guide surface 81. Suppress.

Scraping of the lower hand side 54 is swung freely supported on feeding case 51 via a pivot shaft 72. When the rotation support shaft 72 is rotated by an opening / closing lever 100 disposed outside the supply case 51 and attached to the end of the rotation support shaft 72, the scraped body 54 and the supply guide 80 are switched to the open posture. Thus, a discharge path is formed on the outer peripheral side of the feeding rotary body 52, and the seed soot a remaining in the powder tank 32 can be discharged into the cylindrical body 56 from the discharge path.

Uni it is shown in FIGS. 7 and 8, flow down the guide plate 57 is detachably attached to the inside of the feeding case 51 by connecting means 95 provided over falling guide plate 57 and the feeding case 51. The connecting means 95 includes a support body 96 provided with a rod installed inside the feeding case 51, and a connecting hook 97 integrally formed with the flow guide plate 57.

As shown in FIG. 8, the feeding rotary body 52 is provided with a feeding rotary body main body 52 a provided with four feeding recesses 58 and four capacity adjustment bars 58 a respectively engaged with the four feeding recesses 58. A capacity adjustment body 52b is provided. The operating screw portion provided on the inner peripheral side of the capacity adjusting body 52b is engaged with the feed screw portion 59b provided on the outer peripheral side of the adjusting cylinder shaft 59a that is externally fitted to the rotation support shaft 59 so as to be relatively rotatable. Yes. Capacity adjustment member 52b, by adjusting dial 59c to thus adjust cylinder shaft 59a to the end portion of the externally located and adjust cylinder axis 59a is provided to be rotatable therewith for feeding casing 51 is rotated, the feed screw portion The feeding operation by 59b moves the feeding rotary body main body 52a to move each capacity adjustment bar 58a with respect to the feeding recess 58, thereby changing the length of insertion of each capacity adjustment bar 58a into the feeding recess 58. Thereby, the capacity | capacitance of each feeding recessed part 58 of the feeding rotary body 52 is changed, and the feeding amount of the seed soot a by the feeding rotary body 52 can be changed.

  As shown in FIGS. 7, 8, and 9, the cylindrical body 56 is configured so as to be engaged with and disengaged from the connection protrusion 111 provided on both lateral outer sides on the upper end side of the cylindrical body 56, and the feeding case. It is connected to the feeding case 51 in a detachable manner by connecting hooks 112 provided on both lateral outer sides of the 51 so as to be swingable.

  As shown in FIGS. 5, 7, and 9, a rearward-facing opening 56 a that faces the rear of the vehicle body is formed in the lower portion of the tubular body 56, and the tubular body 56 has a rearward-facing opening 56 a through the rearward-facing opening 56 a. Looking at the inside, it can be determined whether or not the seed potato a is supplied.

  As shown in FIGS. 2 to 12, six grooving units 115 arranged in the working unit lateral direction (vehicle body lateral direction) below the working unit S, and six covering bodies arranged in the working unit lateral direction behind the grooving unit 115. 116, the first working mode, the second working mode, and the third working mode are the working modes of the working unit S that supplies the soot seed by the granular material feeding device A by changing the posture of the soil covering 116 in the mounted state. It is configured so that the work mode can be displayed.

  That is, as shown in FIGS. 2 and 4, the three groovers corresponding to the three powder supply devices A on the left side (the left side of the vehicle body) of the six groovers 115 and the six covering bodies 116. 115 and the three covering bodies 116 are supported by the left support frame 120, and the three powder supply devices on the right side of the working unit (the vehicle body right side) of the six groovers 115 and the six covering bodies 116. The three groovers 115 and the three covering bodies 116 corresponding to A are supported by a right support frame 120 configured as a separate support frame from the left support frame 120.

  In the left support frame 120, the soil covering adjustment lever 130 is disposed and supported at the left end, and in the right support frame 120, the soil covering adjustment lever 130 is disposed and supported at the right end, and the left support frame is supported. The frame 120 and the right support frame 120 are different in the arrangement position of the soil covering adjustment lever 130, but have the same structure in other points.

  FIG. 13 is a perspective view showing the left support frame 120. As shown in FIG. 4 and FIG. 4, the left and right support frames 120 include a front frame 121 in the front-rear direction of the working unit (vehicle front-rear direction) that supports the three groovers 115, and a front frame 121. A rear frame 122 that is positioned laterally at a predetermined interval and supports the three covering bodies 116 to support the lateral side of the working unit (sideways to the vehicle body), and the front frame 121 and the rear frame on both ends of the front frame 121 and the rear frame 122 And a connecting frame 123 that is connected to the working unit 122 in the front-rear direction (vehicle body front-rear direction).

  FIG. 15 is a side view showing the connection structure of the support frame 120. As shown in FIG. 4 and FIG. 4, the support frame 120 includes a connecting portion 124 in which a female screw cylinder 124 a is provided at two locations in the longitudinal direction of the front frame 121.

  As shown in FIGS. 12, 13, and 15, the working unit frame 25 includes a main frame 25 </ b> A that faces the working unit (sideways to the vehicle body) and a float that extends rearward from a plurality of locations in the working unit lateral direction of the main frame 25 </ b> A. A support frame 25B is provided, and a bracket is attached to the rear portion of each float support frame 25B to form a support portion 25a for the support frame 120.

As shown in FIGS. 14 and 17, each groover 115 has a tapered groover body 115b connected to the front frame 121 by a connecting part 115a, and a connection connected to the back surface of the groover body 115b. Part 115c. Connecting portion 115c is Yes then formed in a groove shape which opens rearward facing in the working section vertical view (vertical direction of the vehicle body as viewed), and an internal after how facing opening 56a of the cylindrical body 56 in an open state by opening 115d However, it communicates with the cylindrical body 56.

  As shown in FIG. 13, each cover body 116 is supported by the rear frame 122 by connecting the front end portion of the cover body 116 to a support portion 122 a provided with a bracket attached to the rear frame 122. Both end portions of the rear frame 122 are pivotally supported by a support portion 123 a formed at the rear end portion of the connection frame 123. As shown in FIGS. 13, 15, and 16, the rear frame 122 is connected via an interlocking mechanism 135 that includes a swing arm 136 that is provided at the end of the rear frame 122 located on the laterally outer side of the working portion so as to be integrally rotatable. In conjunction with the soil covering adjustment lever 130.

  The soil covering adjustment lever 130 is constituted by a spring steel wire rod having a coil portion 130a fitted on a support cylinder 137 rotatably supported by the support portion 123a of the connection frame 123. The soil covering adjustment lever 130 is prevented from coming off by a retaining pin 137a (see FIG. 16). As shown in FIGS. 15 and 16, the interlocking mechanism 135 that interlocks the rear frame 122 and the soil covering adjustment lever 130 is an oscillating arm 136 that is integrally rotatable with the rear frame 122, and an interlock that is supported by the oscillating arm 136. A pin 136a, a swing link 138 provided integrally with the support cylinder 137 in a state of being provided with an output hole 138a into which the interlocking pin 136a is engaged, and an input hole 138b provided in the swing link 138 are engaged. The interlocking arm 130b provided in the soil covering adjustment lever 130 is configured as described above. As shown in FIG. 16, the support cylinder 137 is positioned at a predetermined attachment position with respect to the support portion 123a by the retaining pin 137a and the positioning pin 137b sandwiching the coil portion 130a and the support portion 123a.

  Therefore, the rear frame 122 is operated by swinging the soil covering adjusting lever 130 around the axis of the rear frame 122 along the guide groove 141 of the lever guide 140, so that the swing arm 136, the interlocking pin 136a, The cover covering body 116 is rotated by the cover covering adjusting lever 130 via the link 138 to swing the cover covering body 116 up and down around the axis of the rear frame 122. That is, by swinging the soil covering adjusting lever 130 along the guide groove 141, the covering body 116 is attached in a lowered use posture 116D as an operation state indicated by a solid line in FIG. 17, and a two-dotted line in FIG. It can change to the mounting posture 116U of the rising storage as a 1st cancellation | release state to show. When the soil covering body 116 is operated to the first release state, the soil covering adjustment lever 130 is locked to the storage recess 142 formed on one end side of the lever guide 141, whereby the soil covering plate 116 is attached in the first release state. The posture 116U can be held. When the cover plate 116 is operated, the stopper 143, which is one of the pair of connecting bolts that connect the lever guide 140 to the connecting frame 123, receives and supports the swing link 138, and the swing link 138 is the stopper. Even after the contact with the cover 143, the soil covering adjustment lever 130 is moved along the guide groove 141 toward the other end of the lever guide 140 and arranged on the lever guide 140 in the moving direction of the soil covering adjustment lever 130. The soil covering adjusting lever 130 can be held in an elastically deformed state by being locked in one of the plurality of use recessed portions 144, and the elastic restoring force of the soil covering adjusting lever 130 is resisted against the earth pressure. Then, it can be applied to the cover soil body 116 as an operating force that biases downward. By selecting and using one having a larger distance from the storage recess 142 among the plurality of use recesses 144, the amount of elastic deformation of the soil covering adjustment lever 130 is increased and acts on the soil covering body 116. The downward biasing force can be increased.

  2, 3 and 4 show a state in which the first working mode of the working unit S is revealed. As shown in these drawings, when performing seeding work for supplying seed pod a with or without calpar coating to the field, the left support frame 120 is operated with the front frame 121. 6 by connecting the right support frame 120 to the two support portions 25a, 25a on the right side of the working unit frame 25 with the front frame 122. One grooving device 115 can be attached to the working part S in an attached state in which one grooving device 115 is positioned below each powder supply device A and the connecting part 115c is fitted to the lower end of the cylindrical body 56. , Six groovers 115 are activated. Then, the six soil covering bodies 116 can be attached to the working section S in an attached state in which the soil covering bodies 116 are located one by one behind each of the groovers 115, and the soil covering adjustment levers attached to the left and right support frames 120 are mounted. By swinging 130 to the other end side (rear side) of the guide groove 141 and locking it to any one of the plurality of use concave portions 144, the six covering bodies 116 are brought into the working state, and the working portion S enters a state in which the first work mode is displayed. The working section S that has emerged the first working form forms six grooves in the field by the six grooving devices 115, and seeds a in each of the formed six grooves by the powder feeder A. The seed pod a is dropped and supplied, and the seed pod a is buried in the groove after the seed pod a is supplied by the covering body 116.

  FIG. 9 is a side view showing the second working mode of the working unit S. FIG. 10 is a plan view of the working unit S in a state where the second working mode is displayed. As shown in these figures, when performing the sowing operation to supply the seed pod a subjected to the iron coating process to the field, the sowing operation of the seed pod a subjected to the calper coating process or the seed pod a not subjected to the coating process. As in the case of performing the above, by connecting the left and right support frames 120 to the working unit frame 25, the six groove forming devices 115 are positioned one by one under each powder supply device A, and The connecting portion 115c can be attached to the working portion S in an attached state in which the connecting portion 115c is externally fitted to the lower end portion of the cylindrical body 56, and the six groove forming devices 115 are activated. Then, the soil covering adjustment lever 130 mounted on the left and right support frames 120 is rocked to one end side (front side) of the guide groove 144 to be engaged with the storage concave portion 142, so that six soil covering bodies are provided. 116 becomes a 1st cancellation | release state, and the operation | work part S will be in the state where the 2nd operation | work form was revealed. The working section S that has appeared in the second working mode forms six grooves in the field by the six grooving devices 115, and seeds a in each of the formed six grooves by the powder feeder A. After dropping and supplying the seed potato a, the groove after the supply of the seed pod a is not carried out by the covering body 116, so that the seed potato a does not come out of the groove even if there is a strong wind and does not shift from a predetermined supply location. In addition, it is exposed in the groove so as to come into contact with air.

  FIG. 11 is a side view of the working unit S in a state where the third working mode is displayed. FIG. 12 is a plan view of the working unit S in a state where the third working mode is displayed. As shown in these drawings, when performing the sowing work for supplying the seed pod a subjected to the iron coating process to the field, the left and right support frames 120 are removed from the working unit frame 25, so that six grooves are formed. The grooving device 115 can be removed, the six grooving devices 115 are in the release state, the six covering bodies 116 can be removed, the six covering soil bodies 116 are in the second releasing state, and the working unit S Will be in a state where the third work form is revealed. The working unit S that has emerged the third work form supplies seed pods a to the farm scene by using the six granular material supply devices A, and exposes the supplied seed pods a to the farm scene so that it can be easily exposed to air and sunlight. To the state.

  As shown in FIGS. 4 and 17, in the state where the grooving device 115 and the covering soil body 116 are attached to the working unit S, the front frame 121 in the support frame 120 is in front of the cylindrical body 56 of the granular material supply device A. The rear frame 122 of the support frame 120 passes through the vicinity of the rear of the cylindrical body 56 of the granular material supply device A in the horizontal direction of the working unit, and the front frame 121 and The rear frame 122 serves as a guard against the cylindrical body 56.

  As shown in FIGS. 13 and 15, a mounting hole 27 provided so that the connecting bolt 125 is attached to the support portion 25a of the working portion frame 25 is formed in an elongated shape in the vertical direction of the working portion, and is used as an adjustment hole. The grooved portion 115 can be adjusted up and down with respect to the tubular body 56 by changing and adjusting the connecting position of the 120 to the working portion frame 25 in the vertical direction of the working portion by the action of the shape of the mounting hole 27. The depth of the groove formed by the grooving device 115 can be changed without changing the ground height of 56. When the elevating adjustment of the groove forming device 115 with respect to the cylindrical body 56 is performed, the covering soil body 116 is moved up and down together with the groove forming device 115, and regardless of the change in the depth of the groove formed by the groove forming device 115, The earthing is performed at an appropriate working depth adapted to the depth of the groove formed by the grooving device 115 that is adjusted up and down.

  FIG. 14 is a perspective view of the support frame 120 with the rear side of the cylindrical body 56 of the rear frame 122 opened. As shown in this figure, by removing the retaining pin 127 attached to the end portion of the rear frame 122, the rear frame 122 is slid to the side opposite to the side where the soil covering adjustment lever 130 is located with respect to the connecting frame 123. Can be operated. When the rear frame 122 is slid in this manner, the rear frame 122 is detached from the support portion 123a and the support tube 137 of the connection frame 123 on the side where the soil covering adjustment lever 130 is mounted, and the connection pin 136a of the interlocking arm 136 is removed. Comes off the swing link 138. By sliding the connecting frame 123 on the side where the soil covering adjustment lever 130 is located and the rear frame 122 removed from the swing link 138 to the side where the soil covering adjusting lever 130 is located, what is the side where the soil covering adjusting lever 130 is located? It is possible to remove only the rear frame 122 of the support frame 120 that is detached from the opposite connection frame 123 and connected to the working unit frame 25.

  FIG. 18 is a side view showing a state in which the rear side of the cylindrical body 56 is opened. As shown in FIG. 14 and FIG. 14, the rear frame 122 of the support frame 120 is removed from the support frame 120 to be in a maintenance state in which the rear side of the cylindrical body 56 is opened, and the groove generator 115 is moved to the working unit. Even if it remains attached to S, the cylindrical body 56 can be detached from the feeding case 51 from behind the feeding case 51.

As shown in FIGS. 3, 7, and 8, the front side edge 56 b of the cylindrical body 56 is formed as an inclined edge that is located on the rear side as it approaches the lower end of the cylindrical body 56 in a side view of the working unit. flowing the lower 56c that way facing opening 56a is positioned after, by forming the lower tapering shape in the longitudinal direction as viewed from the downward opening in the fertilizer carrier air is cylindrical body 56 discharged from Sakumizo fertilization 77 In order to prevent this, the downward opening of the cylindrical body 56 is separated from the groove fertilizer 77 as far as possible rearward and laterally.

[Another Example]
FIG. 19 is a perspective view showing a part of a working unit S having another implementation structure for switching the working mode. As shown in this figure, in the working part S having another implementation structure, each support part 25a of the working part frame 20 is provided with a mounting hole 28 disposed above the long hole-shaped mounting hole 27. It is.

  The attachment hole 27 of each support portion 25a constitutes an adjustment hole that changes and adjusts the attachment height of the groove forming device 115 and the soil covering body 116 by changing the attachment height of the support frame 120.

When the front frame 121 in the support frame 120 is replaced from the mounting hole 27, the mounting hole 28 is switched to a mounting height, that is, a release state where the groove forming device 115 is lifted from the field and no groove is formed.
The mounting height of the mounting hole 28 may be set to a mounting height at which the soil covering body 116 is actually released even when the soil covering adjusting lever 130 is locked to the use recess 144. You may set to the arrangement | positioning height from which the cover body 116 will be in a cancellation | release state by the lever 130 being latched by the storage recessed part 142. FIG.

  The mounting hole 28 and the mounting hole 27 may be configured by a series of elongated holes, and the front frame 121 may be mounted on the top of the mounting hole 27 so that the released state of the groove generator 115 appears. In this case, there is a risk that an erroneous operation that raises the grooving device 115 to be height-adjusted too much will be performed. On the other hand, the mounting hole 28 for switching the groover 115 to the released state and the mounting hole 27 for changing the height in the operating state of the groover 115 are constituted by separate holes positioned apart from each other. The above-mentioned erroneous operation is not performed.

[Another embodiment]
(1) In the above-described embodiment, an example is shown in which the groove forming device 115 is configured to form a groove at a position located directly below the cylindrical body 56 of the granular material supply apparatus A. However, the granular material supply apparatus You may comprise and implement so that a groove | channel may be formed in a farm field in the location located ahead of the cylindrical body 56 of A.

  (2) In the above-described embodiment, an example is shown in which the left grooving device 115 and the soil covering body 116 and the right grooving device 115 and the soil covering body 116 are separately detached. The groove 115 and the covering body 116 and the right groove forming section 115 and the covering body 116 may be configured to be supported by a common support frame and detached at once. Moreover, you may comprise and implement so that all the groovers 115 may be remove | desorbed separately and switched to an action state and a cancellation | release state. Each groover 115 may be configured to be replaced with the front frame 121 between the action state and the release state. Each groover 115 is swingably and fixedly attached to the front frame 121 so as to be switched around the horizontal axis between the operating state and the released state, or can be slid and fixed so as to be switched vertically. You may attach and implement. All the covering bodies 116 may be configured to be switched between the action state and the release state by swinging up and down or sliding up and down individually with respect to the rear frame 122.

  (3) In the above-described embodiment, an example in which seed potato a is supplied in the form of 6-row supply is shown. However, seed potato a is supplied in a supply form other than 6 such as 4-row supply and 8-row supply. You may comprise and implement so that it may supply.

  INDUSTRIAL APPLICABILITY The present invention can be used for a working machine that supplies seeds such as seed pods, fertilizers, chemicals, and the like other than seeds.

32 granular material tank 52 feeding the rotating body 56 the cylindrical body 56a tubular body after how facing opening 115 Sakumizoki 116 soil cover body 120 supporting the frame 121 front frame 122 rear frame 123 connecting frame A granular material feeding apparatus

Claims (5)

The granular material stored in the granular material tank is fed by a feeding rotating body that can be driven and rotated, and the granular material fed by the feeding rotating body is supplied to the field through a drop supply path formed by the cylindrical body. A working machine connected to the rear part of the vehicle body with a working part equipped with a powder and particle supply device,
The grooving device for forming a groove for dropping the granular material supplied by the granular material supply device in the field is in an active state, and the covering material for digging in the groove in which the granular material has been dropped is in an active state. The first work form, the second work form in which the groover is in an active state, and the soil covering body is in a released state, and the third work in which the groove creator and the soil covering body are in a released state. A work machine that is configured so that its form can be displayed freely.   The working machine according to claim 1, wherein the groove generator is communicated with the cylindrical body so as to be adjustable up and down.   A support frame that supports the groover and the covering body, a front frame that supports the groover by passing through a front side of the cylindrical body in a lateral direction of a working unit, and a rear part of the cylindrical body. The working machine according to claim 1 or 2, further comprising: a rear frame that supports the covering body in a lateral direction of the working unit; and a connecting frame that connects the front frame and the rear frame.   The work machine according to claim 3, wherein the rear frame is configured to be switchable to a maintenance state in which a rear side of the cylindrical body is opened.   The working machine according to any one of claims 1 to 4, wherein a rearward opening is provided in the cylindrical body.

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