JP4934517B2 - Traveling seedling transplanter - Google Patents

Description

  The present invention relates to a traveling seedling transplanting machine in which seedlings such as onions are planted in a field.

Conventionally, this type of traveling seedling transplanting machine is supported by a traveling wheel body on both the left and right sides and driven by the traveling wheel body as described in, for example, Patent Documents 1 and 2 as the prior art. A seedling planting mechanism in which seedlings are planted on the field, and a seedling transfer supply in which seedlings are transferred to the seedling planting mechanism and supplied to the seedling planting mechanism one by one. And a mechanism for mounting both the traveling wheel body, the seedling planting mechanism, and the seedling transporting and feeding mechanism, and is configured to walk or move with the traveling machine body or board the traveling machine body When the operator supplies the seedlings one by one to the seedling transport and supply mechanism, the seedlings of this single stock are transferred and supplied to the seedling planting mechanism by the seedling transport and supply mechanism, and then Planting on the field I have to so that.
JP 2006-149281 A Japanese Patent Laid-Open No. 2007-80

  However, in a conventional traveling seedling transplanter, both traveling wheels on the left and right sides of the traveling body are configured as a pair of front and rear wheels, but when the traveling body is supported by a pair of front and rear wheels, Since the ground contact with the field is a so-called point contact, the ground contact area is small, so it is easy to sink into the field and there is a high possibility that the planting posture and planting depth of the seedling with respect to the field will be uneven. .

  In addition, since the ground contact area with respect to the field is small, slipping is likely to occur, and there is a problem that the seedling planting intervals are likely to be uneven.

  In particular, these problems became prominent in soft fields.

  In addition to solving this problem, an object of the present invention is to provide a traveling-type seedling transplanting machine that can be easily operated to turn, cross over a heel, and cross over a heel.

In order to achieve this technical problem, claim 1
“A seedling planting mechanism that supports seedlings on the left and right sides and is configured to run by driving the running wheels, so that seedlings are planted in the field, and one seedling A seedling transfer supply mechanism that is transferred to the seedling planting mechanism and supplied to the seedling planting mechanism one by one, and is equipped with a driving engine for the two traveling wheels, the seedling planting mechanism, and the seedling transport supply mechanism In the seedling transplanter,
The traveling wheel bodies are configured as a crawler body composed of a track frame extending in the front-rear direction of the traveling machine body and an endless belt that rotates in a state of being wound around a pulley at the front end and a pulley at the rear end. The crawler body is configured to move up and down in a parallel posture by a pair of front and rear link bodies formed by pivotally attaching the base end to the traveling machine body and the other end to the track frame, wherein both crawler body, lift-up turnably configured around a part side after the crawler body,
While the center of the flip-up rotation in both the crawler bodies is a pivot point with respect to the track frame in the rear link body of the pair of front and rear link bodies, the flip-up rotation in both the crawler bodies is set to the pair of front and rear links. It comprised so that it might carry out by expansion and contraction of the front link body among the bodies . "
It is characterized by that.

  According to the configuration described in claim 1, since the ground contact with the field becomes surface contact, and the ground contact area can be greatly increased as compared with the conventional case, the penetration into the soft field can be reduced, and the planting posture of the seedling can be stabilized. The planting depth of the seedlings can be reliably stabilized, and the increase of the contact area can surely reduce running slip in soft fields, so that the seedling planting interval can be stabilized reliably. it can.

  In addition, since the both crawler bodies are configured to move up and down in a parallel posture, the planting posture of the seedling is adjusted as the traveling body moves up and down, that is, the planting depth of the seedling is adjusted. It is possible to reliably prevent the stabilization from being impaired.

  In addition to this, the crawler bodies can be flipped up around their rear ends, so that the ground contact area with respect to the field can be reduced by this flip-up rotation, enabling easy turning operations. In addition, since the front part is lifted by the above-mentioned turning-up rotation, it is possible to easily go over the ridge or over the ridge in the field.

Also, can achieve lift-up rotatable configuration before Symbol both crawler body with a simple structure, it can be advantageously avoided size and weight increase.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  The seedling transplanting machine 1 shown in these figures moves onion seedlings in the width direction of the cocoon 2 while traveling forward in the direction of arrow A along the longitudinal direction of the cocoon 2 while straddling the cocoon 2 in the field. A plurality of planting strips are planted at regular intervals along the traveling direction.

  The onion seedling transplanting machine 1 includes a traveling machine body 3 and a pair of left and right crawler bodies 4a and 4b that travel while supporting the traveling machine body 3 on both the left and right sides, as will be described later.

  A substantially central portion of the traveling body 3 is provided with a mission case 6 that receives power from an engine 5 described later, and the engine 5 is mounted on an engine stand 7 that projects forward from the mission case 6. On the other hand, a steering handle 9 is provided at the rear end of the frame 8 extending rearward from the mission case 6.

  A plurality of seedling planting mechanisms 10, which will be described in detail later, are provided at the rear end portion of the transmission case 3 in the mission case 6 side by side at an appropriate strip interval P in the width direction of the rod 2. A seedling transfer and supply mechanism 11 to be described in detail later is provided in a portion of the traveling machine body 3 above the mission case 6.

  Each of the seedling planting mechanisms 10 includes a planting body 12 that reciprocates vertically between the ridges 2 in the field, as is well known in the above-mentioned Patent Documents 1 and 2, and the like. Is a hollow approximately inverted conical shape, and is divided into front and rear or left and right, and when the planted body 12 is in the raised position, it is closed and the seedling from the seedling transporting and feeding mechanism 11 is received inside. When the planting body 12 is moved downward, the pointed portion at the lower end of the planted body 12 pierces the upper surface 2a of the heel 2, opens in this state, and then returns to the original raised position and closes in the opened state. In this configuration, seedlings are planted on the cocoon 2.

  The seedling transfer and supply mechanism 11 includes an endless chain 15 wound between two sprockets 13 and 14, and the endless chain 15. A plurality of vertical seedling cylinders 16 provided at appropriate pitch intervals, and the seedling cylinders 16 connected in a row by the endless chain 15 are closed loops that are elliptical in the horizontal direction in plan view (FIG. 2). The seedling cylinders 16 are intermittently circulated along the guide rails 17 arranged at pitch intervals, and each seedling cylinder 16 is supplied with a single seedling by the operator. (Supply) After moving to the place just above the planting body 12 in each seedling planting mechanism 10 along the guide rail 17, the shutter (not shown) at the bottom of the plant is opened. It has a configuration of supplying darken the seedlings planting body 12 in each of seedling planting mechanism 10.

  In the present embodiment, the seedling transfer and supply mechanism 11 is located forward as shown by a solid line in FIGS. 1 and 2 and when rearward as shown by a two-dot chain line in FIGS. 1 and 2. It is configured to be replaceable.

  Further, the traveling machine body 3 is provided with a roller-type backfilling body 18 that backfills a portion of the top surface 2a of the basket 2 where seedlings have been planted by the seedling planting mechanism 10. It is provided for every 10 rear locations.

A pair of left and right crawler bodies 4a and 4b supporting the left and right sides of the traveling machine body 3 are a track frame 19 extending in the front-rear direction of the traveling machine body 3, and an idler attached to the front end of the track frame 19 via an idler shaft 20a. A pulley 20, a drive pulley 21 attached to the upper rear portion of the track frame 19 via a drive shaft 21a, an idler pulley 22 attached to the lower rear end of the track frame 19 via an idler shaft 20a, and the track frame A plurality of idler pulleys 23 provided on the lower surface of 19 and an endless belt 24 wound around each of the pulleys 20, 21, 22, 23 in a substantially triangular shape in a side view.

  On the other hand, a pair of front and rear link bodies 25 and 26 having the same length are disposed on both the left and right sides of the traveling machine body 3 so as to extend downward. A base end of the link body 25 is pivotally attached to a lateral member 27 extending laterally from the engine base 7, and a lower end of the front link body 25 is pivotally pivotally attached to the front end of the track frame 19, while the rear portion Both the crawler bodies 4a, 4b are pivotally attached to the transmission case 6 at the base end of the link body 26 and the lower end of the rear link body 26 to the drive shaft 21a at the rear end of the track frame 19, respectively. Is configured to freely move up and down while maintaining a parallel posture, and either one of the pair of front and rear link bodies 25 and 26 is provided on the traveling machine body 3. The traveling machine body is rotated up and down by a lifting hydraulic cylinder (not shown), and the crawler bodies 4a and 4b are moved up and down all at once through the traveling machine body 3. 3 is configured to move up and down with respect to the flange 2.

  In this case, the lifting hydraulic cylinder is operated by a roller-type height sensor 28 provided on the front side of the seedling planting mechanism 10 in the traveling machine body 3 so as to contact the upper surface 2a of the basket 2. Thus, the height from the upper surface 2a of the heel 2 in the traveling machine body 3, that is, the planting depth of the seedling is configured to be kept substantially constant.

  In addition, the rear link body 26 of the pair of front and rear link bodies 25 and 26 in the crawler bodies 4a and 4b is formed as a hollow body, and for transmitting power from the transmission case 7 to the drive pulley 21 therein. A chain (not shown) is provided, and the endless belt 24 in both the crawler bodies 4a and 4b is rotated, so that the traveling machine body 3 moves forward or backward.

On the other hand, the front link body 25 of the pair of front and rear link bodies 25, 26 is configured to be extendable in the longitudinal direction, and the front link body 25 is contracted to operate the both crawler bodies 4a, 4b is, as shown in FIG. 1 by the two-dot chain line, and configured to rotate splashed around the drive shaft 21a in its rear side, further, the lift-up the drive shaft 21a is the center of rotation Is located at the center of gravity of the traveling machine body 3 in the front-rear direction or at a position close to the center of gravity.

  The telescopic front link body 25 may be configured as a hydraulic cylinder by hydraulic pressure or pneumatic pressure so that the fluid cylinder is contracted and operated.

  In addition, one of the pair of left and right crawler bodies 4a and 4b on the left and right sides of the traveling machine body 3 is located on the right side with respect to the forward direction, and the crawler body 4a is close to the traveling machine body 4 in plan view (FIG. 2). In other words, the traveling machine body 3 is offset so as to approach one crawler body 4a located on the right side in a plan view (FIG. 2), but the other crawler body 4b located on the left side. 2, as shown by a two-dot chain line in FIG. 2, the tread L between the two crawler bodies 4 a and 4 b is adjusted to the lateral width of the saddle 2 by moving left and right with respect to the traveling machine body 3. The crawler body 4 is configured to be arbitrarily changed so as to travel across the saddle 2.

  Specifically, the tread L is changed by connecting the pivot shafts 29 and 30 with respect to the traveling machine body 3 at the base ends of the front and rear link bodies 25 and 26 with respect to the other crawler body 4b, the lateral member 27 and the transmission case. 6, the other crawler body 4b is moved to the left and right with respect to the traveling machine body 3 by being slidably supported in the axial direction of the pivot shafts 29 and 30, and at a predetermined tread position. Needless to say, the tread can be fixed so that it cannot be changed.

  Further, power transmission from the transmission case 6 to the drive pulley 21 in the other crawler body 4b is performed by an extendable drive shaft (not shown) inserted into the pivot shaft 30 and the hollow rear link body 26. This is done through a chain (not shown) provided inside.

  In addition, a seat 31 on which an operator rides is disposed on one or both of the crawler bodies 4a and 4b, and the seat 31 is attached to the traveling machine body 3 and a column 32. It is configured to be attached via. The seat 31 may be attached to the track frame 19 in the crawler body.

  The tread L is changed by moving the crawler body 4a located on the right side instead of moving the crawler body 4b located on the left side of the pair of left and right crawler bodies 4a and 4b with respect to the traveling machine body 3. The left and right crawler bodies 4a and 4b may be moved to the left and right with respect to the traveling machine body 3 in the same configuration as described above. It goes without saying that the traveling machine body 3 is provided with a preliminary seedling stage 33 for placing seedlings on a portion close to the seedling transport and supply mechanism 11.

  In this configuration, the seedling planting mechanism 10 and the seedling transfer supply mechanism 11 are driven while the traveling machine body 3 travels forward.

The seedling transfer feed mechanism 11, in the state in the case that the mounting is located in front as indicated by the solid line in FIGS. 1 and 2, the operator was riding on the seat 31, the preliminary seedling the platform 33 The seedlings are supplied one by one into each seedling container 16 in the seedling transport and supply mechanism 11.

  In addition, when the seedling transporting and feeding mechanism 11 is mounted rearward as shown by a two-dot chain line in FIGS. 1 and 2, the worker walks the traveling machine body 3 together while walking the spare seedling. The seedlings on the stage 33 are supplied one by one into each seedling storage cylinder 16 in the seedling transfer and supply mechanism 11.

  Then, after each seedling container 16 in the seedling transport and supply mechanism 11 has moved to a position directly above the planted body 12 in each seedling planting mechanism 10, a shutter at the bottom thereof is opened, so that one stock in the inside The seedlings are dropped into the planted body 12 in each seedling planting mechanism 10 and supplied.

  Next, the planting body 12 in each seedling planting mechanism 10 moves downward, and the sharp part at the lower end of the planting mechanism pierces the upper surface 2a of the cocoon 2 and opens in this state, so that the seedlings can be planted on the cocoon 2 The portion of the upper surface 2a of the cocoon 2 where the seedlings are planted is backfilled by the backfilling body 18.

  The traveling machine body 3 is supported by crawler bodies 4a and 4b on both the left and right sides thereof, and both the crawler bodies 4a and 4b are grounded in surface contact with the field, so that the ground contact area is a conventional wheel. Therefore, it is possible to reduce the penetration to soft fields, to stabilize the seedling planting posture and to stabilize the seedling planting depth, and to increase the contact area, Since the running slip in a soft field can be reliably reduced, stabilization of seedling planting can be achieved reliably.

  In addition, the crawler bodies 4a and 4b are configured to move up and down in a parallel posture by a pair of front and rear link bodies 25 and 26, so that the traveling machine body 3 moves up and down, that is, the seedling. As the planting depth is adjusted, it is possible to reliably prevent the stabilization of the seedling planting posture.

  Then, the crawler bodies 4a and 4b are shown by a double-dashed line in FIG. 1 by operating the front link body 25 of the pair of front and rear link bodies 25 and 26 in the crawler bodies 4a and 4b. In this manner, the drive shaft 21a at the rear end is turned up and rotated.

  Since the ground contact area with respect to the field is reduced by the flip-up rotation of both the crawler bodies 4a and 4b, an easy turning operation is possible, and the front part is lifted by the flip-up rotation. Or it can be easily crossed.

  On the other hand, the drive shaft 21a, which is the center of flip-up rotation in both the crawler bodies 4a, 4b, is located at the center of gravity in the front-rear direction of the traveling machine body 3 or at a position close to the center of gravity. Accordingly, it is possible to reduce the inclination of the traveling machine body 3 in the front-rear direction following the rotation of the crawler bodies 4a and 4b.

It is a side view which shows the seedling transplanting machine by embodiment in this invention. It is a top view of FIG. It is a top view of the state which removed the seedling transfer supply mechanism in FIG. FIG. 4 is a rear view taken along the line IV-IV in FIG. 1.

DESCRIPTION OF SYMBOLS 1 Seedling transplanter 2 ３ 3 Traveling machine body 4a, 4b Crawler body 19 Track frame of crawler body 20, 22, 23 Crawler body idler pulley 21 Crawler body drive pulley 24 Endless belt of crawler body 5 Engine 6 Mission case 9 Steering handle DESCRIPTION OF SYMBOLS 10 Seedling planting mechanism 11 Seedling transport supply mechanism 12 Planted body 15 Endless chain 16 Seedling tube 17 Loop guide rail 18 Backfill body 25 Telescopic front link body 26 Rear link body 31 Seat 33 Preliminary seedling stage

Claims (1)

A seedling planting mechanism in which seedlings are planted in the field and a seedling planted one by one on a traveling machine configured to be supported by traveling wheels on both the left and right sides and driven by driving the traveling wheels. A seedling transfer supply mechanism that is transferred to the seedling planting mechanism and supplied to the seedling planting mechanism, and is equipped with a driving engine for the two traveling wheels, the seedling planting mechanism, and the seedling transfer supply mechanism In the transplanter,
The traveling wheel bodies are configured as a crawler body composed of a track frame extending in the front-rear direction of the traveling machine body and an endless belt that rotates in a state of being wound around a pulley at the front end and a pulley at the rear end. The crawler body is configured to move up and down in a parallel posture by a pair of front and rear link bodies formed by pivotally attaching the base end to the traveling machine body and the other end to the track frame, wherein both crawler body, lift-up turnably configured around a part side after the crawler body,
While the center of the flip-up rotation in both the crawler bodies is a pivot point with respect to the track frame in the rear link body of the pair of front and rear link bodies, the flip-up rotation in both the crawler bodies is set to the pair of front and rear links. Constructed to be done by stretching the front link body of the body,
Traveling seedling transplanter.

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