JP2007061034A - Planting implement of transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a planting implement of a transplanter to prevent the forward splash of mud by a leveling rotor. <P>SOLUTION: The planting implement liftably connected to a traveling machine body 1 is provided with a covering member to cover the upper front part of a leveling rotor 16 to perform the leveling work of the surface layer of the field from the surface to the planting depth by the rotational motion of the rotor in conjunction with the lifting motion of the planting implement 7. The backward splash of mud by the rotation of the leveling rotor 16 in leveling work is prevented by using a rotor cover 36 covering the rear part above the leveling rotor 16 and turning the rotor cover forward by a turning driving part 39 to use the rotor cover 36 as the cover member or using a mobile cover member 41 as the cover member by moving the mobile cover 41 along the leveling rotor 16 to cover the upper front side the leveling rotor 16 in conjunction with the lifting motion of the planting implement 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a planting work machine for a transplanting machine in which a leveling rotor is provided in a planting work machine.

A transplanter that is connected to a traveling machine body so as to be movable up and down, and has a leveling rotor that performs leveling work on the surface of the field from the surface of the field to the planting depth by rotational driving, and rotationally drives the leveling rotor in conjunction with the traveling drive of the traveling machine body Planting machines are known (see, for example, Patent Document 1).
JP 2004-65111 A

  The leveling rotor rises with the planting machine when the planting machine is raised. For example, when the traveling machine body is turned, the leveling rotor rotates idly in conjunction with the traveling drive. In this case, the muddy soil splashes forward with the rotation of the leveling rotor, and there is a disadvantage that the working environment may be deteriorated due to dirt on the operator sitting on the seat.

  The transplanting machine of the transplanter of the present invention for solving the above-mentioned problems is connected to the traveling machine body 1 so as to be movable up and down, and the leveling rotor 16 performs leveling work on the surface of the field from the surface of the field to the planting depth by rotational driving. In the transplanting machine of the transplanter that rotationally drives the leveling rotor 16 in conjunction with the travel drive of the traveling machine body 1, the front side above the leveling rotor 16 is interlocked with the ascent of the planting work machine 7. The first feature is that a cover body for covering is provided.

  Secondly, a rotor cover 36 that covers the upper rear side of the leveling rotor 16 is provided so as to prevent mud from splashing rearward due to the rotation of the leveling rotor 16 during leveling work. Rotating operation in which the rotor cover 36 is rotated forwardly in conjunction with the ascent of the planting work machine 7 between the rotor cover 36 and the traveling machine body 1 while being rotatably supported and attached to the planting work machine 7 side. The moving part 39 is provided, and the rotor cover 36 is also used as a cover body.

  Thirdly, a rotor cover 36 covering the upper rear side of the leveling rotor 16 is disposed on the planting work machine 7 side so as to prevent the mud from splashing rearward due to the rotation of the leveling rotor 16 during leveling work. A cover body 41 is attached in front of the rotor cover 36 so as to be movable with respect to the rotor cover 36, and the cover body 41 is attached to the leveling rotor 16 in conjunction with the ascent of the planting work machine 7. It moves along the front side above the leveling rotor 16 along the ground.

  According to the structure of the present invention configured as described above, for example, when turning the traveling machine body, when the planting work machine is lifted, the cover body is moved forward by the idle rotation of the leveling rotor that is lifted together with the planting work machine. Prevent mud from splashing to the side. As a result, mud splashing due to rotation of the leveling rotor to the operator sitting in the seat can be prevented, so that the operator can be prevented from being soiled with mud, and the working environment is improved.

  By covering the rear side above the leveling rotor and using the rotor cover that prevents mud from splashing backward due to the rotation of the leveling rotor during leveling work by the leveling rotor, the cover body is It can be installed easily and at low cost. In this case, when the planting work machine is lowered, the upper front side of the leveling rotor can be opened, so that mud clogging or the like during leveling work by the leveling rotor is prevented.

  A rotor cover fixed to the planting work machine side is provided with a cover body that moves so as to cover the front side above the leveling rotor along the leveling rotor in conjunction with the ascent of the planting work machine. In this case, the cover body can be installed easily and at low cost.

  FIG. 1 is a side view of a rear portion of a riding rice transplanter that is a transplanter adopting the present invention. A rear mission case 2 is integrally fixed below the rear part of the body frame 1a in the traveling body 1 of the riding rice transplanter. Rear wheels 3 are provided on the left and right sides of the rear mission case 2. The rear wheel 3 is rotationally driven by the driving force transmitted from the rear mission case 2.

  A seat 4 is provided above the rear part of the body frame 1a. A planting work machine 7 is connected to the rear of the traveling machine body 1 through an elevating link mechanism 6 including a lower link 6a and an upper link 6b so as to be movable up and down and rolling. The planting work machine 7 is located behind the rear wheel 3.

  The planting work machine 7 is provided with a seedling mounting table 8 on which a seedling for planting is placed. A vertical frame 9 in the vertical direction and a horizontal frame 11 provided horizontally in the horizontal direction below the vertical frame 9 are provided on the back surface (back surface) side of the seedling mount 8. The vertical frame 9 and the horizontal frame 11 are fixed integrally.

  A plurality of planter cases 12 are attached to the side of the horizontal frame 11. A planting portion 13 is attached to the planter case 12 so as to be rotatable. The planting part 13 scrapes off the seedling from the seedling mounting base 8 and rotates it in the field. The planting work machine 8 is provided with a float 14 below the planter case 12.

  The planting work machine 7 is provided with a leveling rotor 16 at a position in front of the float 14 over substantially the entire width of the riding rice transplanter. The leveling rotor 16 is disposed in front of the planting work machine 7 and in the rear position of the rear wheel 3.

  As shown in FIG. 2, the leveling rotor 16 includes an inner rotor 16 </ b> I that is pivotally supported on a rotor shaft 18 that protrudes from the left and right sides of the gear case 17, and a pin 19. The outer rotor 16O is integrally supported by an extension shaft 21 concentrically connected to the rotor shaft 18 in the rotational direction around the shaft center.

  Between the upper sides of both the vertical frames 9 described above, a left and right shaft 23 is pivotally supported. The shaft 23 is provided with a lever 24 for operating the rotation of the shaft 23. As the lever 24 swings, the shaft 23 rotates. Arms 26 are provided on the left and right sides of the shaft 23. A relay arm 27 is pivotally connected to the distal end side of each arm 26 so as to be rotatable.

  Support rods 28 are pivotally connected to the lower ends of the left and right relay arms 27 in a rotatable manner. The support rod 28 is slidably inserted into a cylindrical guide 29. The guide 29 is attached to the lateral frame 11 side via a bracket 31. As shown in FIG. 2, a bearing case 32 is provided on the lower end side of the support rod 28.

  The aforementioned rotor shaft 18 is inserted into the bearing 33 in the bearing case 32 while allowing rotation about the axis. The gear case 17, the rotor shaft 18, and the extension shaft 21 are supported on the tip of the support rod 28 as described above, whereby the leveling rotor 16 is supported on the tip of the support rod 28 and attached to the planting work machine 7. Yes.

  A driving force is transmitted to the gear case 17 via the transmission shaft 22 from the rear mission case 2 side. A driving force is transmitted from the gear case 17 to the rotor shaft 18. The rotor shaft 18 is driven to rotate about the shaft center by the driving force from the gear case 17. The extension shaft 21 is also driven to rotate about the axis by the rotational drive of the rotor shaft 18. The leveling rotor 16 (inner rotor 16I and outer rotor 16O) is rotationally driven by the rotational drive of the rotor shaft 18 and the extension shaft 21.

  The leveling rotor 16 swings the lever 24, rotates the shaft 23, and slides the support rod 28 up and down in a state guided by the guide 29 via the arm 26 and the relay arm 27, thereby planting. The height with respect to the work machine 7 is adjusted.

  By adjusting the height of the leveling rotor 16, the leveling rotor 16 protrudes from the lower surface of the float 14 as shown in FIG. The posture can be switched to the working posture.

  The lever 24 is inserted into a lever guide 34 fixed to the vertical frame 9, and the height of the leveling rotor 16 can be adjusted by engaging the lever 24 with a step provided in the lever guide 34. it can. In addition to switching between the working posture and the storage posture, the leveling depth can be set and adjusted by adjusting the amount of protrusion of the leveling rotor 16 from the lower surface of the float 14 in multiple steps in the working posture.

  With this configuration, the riding rice transplanter is operated by the operator sitting on the seat 4 to lower the planting work machine 7 so that the float 14 contacts the field scene, and to engage and operate the planting clutch. By driving the traveling machine 1 in the field while planting the work machine 7, the rotationally driven planting unit 13 scrapes off the seedling from the seedling stand 8, and the scraped seedling travels on the traveling machine body 1. Accordingly, planting work can be performed in order on the field.

  Since the driving force is transmitted to the gear case 17 from the rear transmission case, the leveling rotor 16 is rotationally driven when the traveling machine body 1 travels (when the rear wheel 3 is driven). For this reason, by setting the leveling rotor 16 to the working posture at the time of the planting operation, the leveling rotor 16 that is rotationally driven contacts the field, and the surface layer of the field has a depth corresponding to the amount of protrusion from the lower surface of the float 14. By being inserted into the part, only the surface layer part shallower than the planting depth of the field after cutting is leveled.

  However, if the leveling rotor 16 is in the stowing position even during planting work, the leveling rotor 16 will not contact the field even if the leveling rotor 16 is driven to rotate when the traveling machine body 1 is running (when the rear wheel 3 is driven). The above leveling work is not performed. The headland etc. is leveled by the leveling rotor 16 at the headland of the field after scraping, which is rough due to turning of the traveling machine 1 during planting work, and the seedling is stabilized on the headland after leveling by the leveling rotor 16. Can be planted.

  The upper and rear sides of the leveling rotor 16 are covered with a rotor cover 36. The rotor cover 36 includes an inner rotor cover 36I that covers the rear side above the inner rotor 16I and an outer rotor cover 36O that covers the rear side above the outer rotor 16O. The rotor cover 36 is directed to the rear side (planting machine 7 side) due to the rotation of the leveling rotor 16 during leveling work by the leveling rotor 16 by the rear cover posture covering the rear side above the leveling rotor 16 as described above. Prevent mud jumping.

  As shown in FIGS. 2 and 4, each rotor cover 36 </ b> I, 36 </ b> O has a boss portion 37 provided at an end thereof externally fitted to the bearing case 32. The rotor cover 36 is rotatably attached to the bearing case 32. The rotation center of the rotor cover 36 (the inner rotor cover 36I and the outer rotor cover 36O) coincides with the axis of the rotor shaft 18.

  In the leveling rotor 16, the portion of the bearing case 32 is interrupted, and there is no leveling action in this portion. The rotor cover 36 is supported at a portion where the leveling rotor 16 is interrupted. If the rotor cover 36 is configured to be supported at another position, the leveling rotor 16 may be interrupted at the support portion of the rotor cover 36, so that the rotor cover 36 is supported without sacrificing the leveling action range of the leveling rotor. can do.

  A plate 38 is fixed to the support rod 28. A tension spring 40 is interposed between the plate 38 and the inner rotor cover 36I and the outer rotor cover 36O. One end of an inner 39I of a separate wire 39 is connected to the inner rotor cover 36I and the outer rotor cover 36O.

  The inner 39I side of the outer 39O of each wire 39 is attached to the plate 38. The opposite side of each wire 39 to the outer 39O is attached to the lower link 6a as shown in FIG. The opposite side of each wire 39 to the inner 39I is connected to the rear end of the body frame 1a as shown in FIG.

  As a result, when the planting work machine 7 is raised by the operation of the operator sitting on the seat 4, the inner 39 </ b> I is pulled and the rotor cover 36 ( The inner rotor cover 36I and the outer rotor cover 36O) rotate forward along the outer periphery of the leveling rotor 16, and the rotor cover 36 changes its posture to a front cover posture that covers the front side above the leveling rotor 16. Do.

  However, when the height adjustment of the leveling rotor 16 with respect to the planting work machine 7 is performed by the lever 24, the positional relationship between the inner 39I of the wire 39 on the leveling rotor 16 side and the outer 39O is not changed. The posture is not changed. Therefore, when the leveling depth is adjusted, the amount of rotation when the rotor cover 36 is operated or the posture is changed does not change.

  For example, when turning the traveling machine body 1, the planting work machine 7 is raised as shown in FIG. In this case, since the rotor cover 36 assumes the front cover posture as described above, the mud is prevented from splashing to the front side (seat 4 side) due to the idle rotation of the leveling rotor 16 that has risen together with the planting work machine 7. As a result, mud splashing due to rotation of the leveling rotor 16 to the operator P sitting on the seat 4 can be prevented, mud contamination of the operator P can be prevented, and the working environment is improved.

  When the planting machine 7 is lowered to perform the planting operation, the inner 39I of the wire 39 is returned by the biasing force of the tension spring 40, and the rotor cover 36 is maintained in the rear cover posture. At this time, since the front side above the leveling rotor 16 is opened, mud removal between the rotor cover 36 and the leveling rotor 16 becomes good during leveling work by the leveling rotor 16, mud clogging is prevented, and the leveling rotor 16 is prevented. The leveling work by is carried out smoothly.

  As described above, the rotor cover 16 functions as a cover body that covers the front side above the leveling rotor 16 in conjunction with the ascent of the planting work machine 7 by changing the posture of the rotor cover 16. Since the conventional rotor cover 16 is also used as the cover body, it is installed relatively easily and at a low cost. Since the structure is simple, the possibility of failure is low.

  On the other hand, as shown in FIGS. 7 and 8, the rotor cover 36 (the inner rotor cover 36I and the outer rotor cover 36O) is fixedly attached to the support rod 28 side, and is forwardly attached to the inner rotor cover 36I and the outer rotor cover 36O. The front cover 41 can be pivoted up and down so as to protrude, and the front cover 41 can be used as the cover body.

  In this case, the inner 39I of the wire 39 is connected to the rear side of the rotation fulcrum shaft 42 of the front cover 41, and the tension spring 40 is connected between the front of the rotation fulcrum shaft 42 of the front cover 41 and the plate 38. Provided.

  As a result, when the planting work machine 7 is raised in the same manner as described above, the inner 39I is pulled and the front cover 41 is rotated downward against the urging force of the tension spring 40 as shown in FIG. The upper side of the leveling rotor 16 is covered along the outer periphery of the leveling rotor 16, and the mud is splashed to the front side (seat 4 side) by the idling rotation of the leveling rotor 16 that has risen together with the planting work machine 7. To prevent. As a result, mud splashing due to rotation of the leveling rotor 16 to the operator P sitting on the seat 4 can be prevented, mud contamination of the operator P can be prevented, and the working environment is improved.

  When the planting machine 7 is lowered to perform the planting operation, the inner 39I of the wire 39 is returned by the urging force of the tension spring 40, the front cover 41 is rotated upward, and the leveling by the leveling rotor 16 is performed. The front side above the leveling rotor 16 is opened so that mud is not clogged between the front cover 41 and the leveling rotor 16 during operation. The front cover 41 functions as a cover body that covers the front side above the leveling rotor 16 in conjunction with the ascent of the planting work machine 7 by rotating and moving.

  Also in this case, the cover body can be installed at a low cost with a simple configuration in which the front cover 41 is simply attached to the structure (rotor cover 36) on the planting work machine 7 side that has been conventionally installed.

It is a side view of the rear part of the riding rice transplanter in which the float contacts the field and the leveling rotor is in the storage position. It is a principal part top view of a leveling rotor part. It is a side view of the rear part of the riding rice transplanter in which the float contacts the field and the leveling rotor is in the working posture. It is a principal part side view of the leveling rotor part which a rotor cover is a back cover attitude | position. It is a principal part side view of the leveling rotor part which a rotor cover is a front cover attitude | position. It is a side view of the rear part of the riding rice transplanter of the state which raised the planting work machine. It is a principal part side view of the leveling rotor part in the state where the front cover opened the front side above the leveling rotor. It is a principal part side view of the leveling rotor part of the state which the front cover covered the front side above the leveling rotor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 7 Planting work machine 16 Leveling rotor 36 Rotor cover 39 Wire (rotation operation part)
41 Front cover (cover body)

Claims (3)

  A leveling rotor (16) is connected to the traveling machine body (1) so as to be movable up and down, and performs leveling work on the surface of the field from the surface of the field to the planting depth by rotational driving. In the transplanting machine of the transplanting machine that is rotationally driven in conjunction with the traveling drive of the transplanting machine, a transplant body provided with a cover body that covers the front side above the leveling rotor (16) in conjunction with the ascent of the planting work machine (7) Planting machine.   A rotor cover (36) that covers the upper rear side of the leveling rotor (16) is provided so as to prevent the mud from splashing rearward due to the rotation of the leveling rotor (16) during leveling work, and the rotor cover (36) is supported and attached to the planting machine (7) so as to be pivotable back and forth, and interlocked with the rise of the planting machine (7) between the rotor cover (36) and the traveling machine body (1). The transplanting machine of the transplanting machine according to claim 1, wherein a rotating operation part (39) for rotating the rotor cover (36) forward is provided, and the rotor cover (36) is also used as a cover body. A rotor cover (36) that covers the upper rear side of the leveling rotor (16) is attached to the planting work machine so as to prevent mud from splashing rearward due to the rotation of the leveling rotor (16) during leveling work. (7) It is fixed on the side, and a cover body (41) is attached in front of the rotor cover (36) so as to be movable with respect to the rotor cover (36), and the cover body (41) is planted. The transplanting machine of the transplanter according to claim 1, wherein the planting work machine moves along the leveling rotor (16) so as to cover the upper front side of the leveling rotor (16) in conjunction with the ascent of the machine (7).

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