JP4362923B2 - Seedling planting machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seedling planting machine.
[0002]
[Problems to be solved by the invention]
In timber work or work on sloping fields, work on the ground while propelling and driving in a tread-biased state in which the work machine is deviated left and right with respect to the vehicle body and in a state where the tread between the left and right wheels is changed There is a case. In such a working machine configuration, when the wheel is moved to the left and right with respect to the vehicle body, except when the wheel is mechanically moved by power, when the tread deviation is performed in the manual configuration, the wheel moves smoothly. Often not. Therefore, the wheel is moved with a simple configuration and operation.
[0003]
[Means for Solving the Problems]
According to the first aspect of the present invention, the engine 7 is provided at the front, the left and right drive wheels 5L and 5R are disposed at the left and right sides, the handle frame 8 is disposed at the rear, the handle 9 is disposed, and the seedling planting device 10 is provided. In the seedling planting machine, the left and right auxiliary wheels 1L, 1R are disposed at the front end of the vehicle body 4 and the stand 11 is provided below the vehicle body 4 so as to be freely switched between the standing posture C and the storage posture D. The left and right axle tubes 16L and 16R are connected to the left and right sides of the transmission case 15 transmitted from the front and rear sides of the transmission case 7 in parallel with each other, projecting outward in the left and right directions and connected at the ends with brackets 17, respectively. each left and right axle housing 18 rotatably fitted supported 16R, respectively right and left wheels the transmission case 20 is fixed to the left and right axle housings 18,該Sayu wheel transmission Right and left drive wheels 5L to the rear end portion of the over scan 20, provided with respectively 5R, wheel transmission case handle 52 is provided along the upper side of the rear end portions of the left and right wheels transmission case 20, lower the left and right wheel transmission case 20 It is configured to rotate and change the vehicle height and adjust the tread displacement between the left and right drive wheels 5L and 5R by moving the left and right drive wheels 5L and 5R to the left and right by the expansion and contraction movement of the left and right axle housing 18. A lateral support tube 46 is provided on the lower side of the case 15, and the axle frame 3 is fitted to the support tube 46 so as to be slidable to the left and right, and left and right auxiliary wheels 1L and 1R are respectively attached to both ends of the axle frame 3. Is provided at the right end of the axle frame 3 so as to protrude forward, and the axle frame 3 is provided on the right side of the front side of the support tube 46 on the side of the movement handle 2. And seedling planting machine according to characterized in that a locking handle 6 for fixing the turned position.
[0004]
According to the second aspect of the present invention, a pair of left and right brackets 43 are provided on the bracket base 42 at the lower part of the vehicle body 4, and both end portions of the loop-shaped stand 11 are provided on the left and right brackets 43 so as to be pivotable back and forth around the pins 44. The stand 11 is provided so that it can be switched between a standing posture C at the lower rear side and a storage posture D at the upper front side, and a stand handle 51 is provided at the lateral end of the stand 11. The seedling transplanter described in 1 is used.
[0005]
【The invention's effect】
The present invention has the following technical effects by the configuration as described above. According to the first aspect of the present invention, the engine 7 is provided at the front, the left and right drive wheels 5L and 5R are disposed at the left and right sides, the handle frame 8 is disposed at the rear, the handle 9 is disposed, and the seedling planting device 10 is provided. In the seedling planting machine, the left and right auxiliary wheels 1L, 1R are disposed at the front end of the vehicle body 4 and the stand 11 is provided below the vehicle body 4 so as to be freely switched between the standing posture C and the storage posture D. The left and right axle tubes 16L and 16R are connected to the left and right sides of the transmission case 15 transmitted from the left and right sides of the transmission case 7 so that the pair of front and rear tubes are parallel and project outward. each left and right axle housing 18 rotatably fitted supported 16R, respectively right and left wheels the transmission case 20 is fixed to the left and right axle housings 18,該Sayu wheel transmission Right and left drive wheels 5L to the rear end portion of the over scan 20, provided with respectively 5R, wheel transmission case handle 52 is provided along the upper side of the rear end portions of the left and right wheels transmission case 20, lower the left and right wheel transmission case 20 Since the vehicle height is changed by rotating, and the left and right drive wheels 5L and 5R are moved left and right by the expansion and contraction of the left and right axle housing 18, the tread displacement adjustment between the left and right drive wheels 5L and 5R is performed. The left and right drive wheels 5L and 5R are lifted from the ground surface with the stand 11 in the standing posture C, and the left and right drive wheels 5L and 5R are moved to the left and right by the telescopic movement of the axle housing 18 to move the left and right drive wheels 5L and 5L. The tread displacement adjustment between 5R can be performed. At the time of adjusting the tread displacement, the left and right drive wheels 5L and 5R can be moved laterally by the wheel transmission case handle 52 provided at the rear end portion of the left and right wheel transmission case 20. Further, since the wheel transmission case handle 52 is provided along the upper side of the rear end portion of the left and right wheel transmission case 20, it does not interfere with traveling. Further, the left and right axle tubes 16L and 16R have a configuration in which a pair of front and rear tubes are parallel and protrude outward in the left and right directions, and their distal ends are connected by a bracket 17, so that the support rigidity of the left and right drive wheels 5L and 5R can be increased. it can.
[0006]
Further, a lateral support tube 46 is provided below the transmission case 15, the axle frame 3 is fitted to the support tube 46 so as to be slidable to the left and right, and left and right auxiliary wheels are respectively attached to both ends of the axle frame 3. 1L and 1R are rotatably provided, and a moving handle 2 is provided at the right end portion of the axle frame 3 so as to protrude to the front side, and the sliding side of the axle frame 3 is slid on the right end side of the front side of the support tube 46 on the lateral side of the moving handle 2. Since the lock handle 6 for fixing the moving position is provided, when the tread displacement of the left and right auxiliary wheels 1L, 1R is performed with respect to the vehicle body 4, the moving handle 2 is gripped to hold the axle frame 3 on the left side or By moving to the right, the wheel position can be determined with a simple operation. Further, since the moving handle 2 of the axle frame 3 and the lock handle 6 that fixes the movement of the axle frame 3 are arranged close to the same right side on the front side of the axle frame 3, the axle frame 3 Can be easily performed on the right side of the axle frame 3.
[0007]
According to the second aspect of the present invention, in addition to the effect of the first aspect, the left and right brackets 43 are provided with a pair of left and right brackets 43 on the bracket base 42 at the lower part of the vehicle body 4. The stand 11 is provided so as to be pivotable back and forth around the pin 44, and the stand 11 is provided so as to be able to switch between a standing posture C at the rear lower portion and a storage posture D at the front upper portion, and at the lateral end of the stand 11. Since the stand handle 51 is provided, when the left and right drive wheels 5L and 5R and the left and right auxiliary wheels 1L and 1R are moved to the left and right, it is easy to perform the work by raising the stand 11, but the stand handle 51 is provided at the lateral end of the stand 11. Since the stand 11 is provided, the stand 11 can be easily put in and out by operating the stand handle 51.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is used as a traveling device for an agricultural machine that performs ground work. Examples of the farm work machine include a seedling planting machine, a seeding machine, and a management work machine, and are particularly used for forming a ridge width or working in an inclined field. The present invention can also be effectively used for a walking operation type working machine and a riding four-wheel type working machine. In particular, it can be suitably used for a rotatable wheel, but it can also be used for a drive wheel driven by power. Further, the axle frame is configured to shift the tread by moving left and right with respect to the vehicle body by mounting wheels on the left and right ends.
[0009]
As a configuration of a traveling device of an agricultural machine in which an axle frame having wheels and a moving handle is provided so as to be slidable to the left and right with respect to the vehicle body, the wheel position is easily determined by the moving handle.
In addition, the axle frame is moved to the left and right easily with the auxiliary wheels arranged in front of or behind the drive wheels and with the auxiliary wheel portions floating.
[0010]
Further, the movement handle 2 of the axle frame 3 is arranged on the same side as the lock handle 6 for fixing the sliding position of the axle frame 3, and the operation for fixing the movement of the axle frame is performed on the same side of the axle frame. It is easy to do.
[0011]
【Example】
An embodiment of the present invention will be described with reference to the drawings. First, the overall configuration of the embodiment will be described based on FIGS. 1 to 5 showing the first embodiment. 6 and 7 showing the second embodiment relate to a stand used when the vehicle body is levitated, and FIG. 8 showing the third embodiment relates to a transmission case of the drive wheel. The fourth embodiment FIGS. 9-10 which show these are related with the seedling planting clutch of the seedling planting machine which performs seedling planting on the soil surface covered with the multi film.
[0012]
[First Example]
A first embodiment will be described with reference to FIGS. The vehicle body 4 has an engine 7 at the front, drive wheels 5L and 5R are arranged on both left and right sides, a handle frame 8 is arranged behind the handle 9, and a seedling planting device 10 is mounted. . The auxiliary wheels 1L and 1R are arranged at the front end portion of the vehicle body 4 and are supported by the axle frame 3 so as to be movable in the lateral direction below the vehicle body 4. Reference numeral 11 is a stand provided under the vehicle body 4 so as to be able to turn up and down, 12 is a seedling stage on which a seedling for replenishment to be supplied to the seedling planting device 10 is placed, and 13 is a grounding sensor for detecting the height of the seedling planting soil surface A A part of the pitching device is constituted by a pitching sensor comprising: Reference numeral 14 denotes a cultivating soil disk for cultivating seedlings to be planted by the seedling planting device 10.
[0013]
The front portion of the vehicle body 4 has a transmission case 15 having an internal transmission mechanism transmitted from the engine 7, and axle tubes 16L and 16R are provided on both the left and right sides so as to be laterally movable. The axle tubes 16L and 16R are protruded outward in the left and right directions with a pair of front and rear tubes in parallel. These left and right axle tubes 16L and 16R are integrally moved to the left and right sides by rotation of the internal spiral shaft, expansion and contraction of the hydraulic cylinder (not shown), and the tread between the left and right drive wheels 5L and 5R is It can be deviated by moving to the left and right with respect to the vehicle body. In FIG. 2, the axle tubes 16L and 16R are shifted to the right.
[0014]
Further, the front end portion is connected to the integrated structure by the bracket 17 to enhance the support rigidity of the drive wheels 5L and 5R. An axle housing 18 is rotatably fitted and supported on each axle tube 16L, 16R. Each axle housing 18 has an arm 19 at the inner end and a driving wheel 5L at the rear end at the outer end. , 5R can be fixed to the wheel transmission case 20 with the shaft mounted, and the arm transmission 19 can be turned up and down to turn the wheel transmission case 20 up and down to change the vehicle height.
[0015]
Such a pitching device capable of rotating the left and right drive wheels 5L and 5R up and down is connected to a hydraulic expansion / contraction pitching cylinder 21 provided at the center of the vehicle body 4 by a pivot pin 29 so as to swing freely. The seesaw arm 23 that protrudes to the left and right, the arm 19 that is integral with the inner end of the axle housing 18, the rolling cylinder 24 that is connected between both ends of the seesaw arm 23, the pitching sensor 13, and the like. .
[0016]
A hydraulic circuit 26 including a hydraulic pump 25 driven by the engine 7, a pitching cylinder 21, a rolling cylinder 24, and the like is provided with a pitching valve 27 and a rolling valve 28. The pitching valve 27 is switched by an operation of the lever 30 provided on the pitching sensor 13 or the handle 9 and the piston 22 of the pitching cylinder 21 is expanded and contracted, and the left and right drive wheels 5L and 5R are moved to the vehicle body 4. On the other hand, the height of the seedling planting device 10 with respect to the soil surface A is maintained and controlled constant.
[0017]
Regarding the rolling device, the left drive wheel 5L is connected between the arm 19 and the seesaw arm 23 of the axle housing 18 via a rolling cylinder 24 that is hydraulically expanded and contracted. The driving wheel 5L is rotated up and down by the expansion and contraction of the rolling cylinder 24, so that the support height of the vehicle body 4 can be changed, and the vehicle body 4 can be rolled so as to incline horizontally and horizontally. The rolling cylinder 24 is rolled by a rolling sensor 31 for detecting a left-right inclination angle of the vehicle body 4 and a rolling valve 28 of a hydraulic circuit 26 switched thereby to maintain the vehicle body 4 in a horizontal horizontal posture or an inclined posture. Be controlled.
[0018]
As described above, in the mechanism constituting the pitching device and the rolling device, the rod 19 connects the arm 19 of the axle housing 18 and the seesaw arm 23 on the right drive wheel 5R side, and the rod 32 is an integral spring. A spring 35 is interposed between the receiver 33 and a spring receiver 34 protruding from the side surface of the transmission case 15 integral with the vehicle body 4, and a part of the weight of the vehicle body 3 itself is transferred to the spring receiver 34 via the spring 35. Support elastically.
[0019]
The seedling planting device 10 receives a seedling feeding device 40 including a seedling funnel 37 and a disk 38 transmitted from a seedling planting transmission case 36 at the upper part of the vehicle body 4 and a seedling dropped from the seedling funnel 37. It is comprised from the seedling planting apparatus 39 which moves and forms a seedling hole in the soil surface A, and plantes a seedling. The seedling funnel 37 receives the seedling transferred from the seedling mounting table 12 by the rotation of the disk 38, transports it to the planting position of the seedling planting device 39, and drops and supplies it to the seedling planting device 39. The seedling planting device 39 is arranged along the center portion in the width direction of the vehicle body 4 together with the seedling supply device 40 such as the disk 38.
[0020]
The seedling planting device 39 is driven up and down by the planting link mechanism 41 and is operated so as to draw an elliptical planting trajectory line B. The seedling held at the top dead center is placed on the soil surface at the bottom dead center. Plant and release.
A pair of left and right brackets 43 are provided on the bracket base 42 at the lower part of the vehicle body 4, and both end portions of the loop-shaped stand 11 are provided on the bracket 43 so as to be rotatable around the pins 44. The stand 11 is provided with a toggle spring 45, which can be switched over between a standing posture C at the lower rear portion and a storage posture D at the front upper portion over the dead point. In the embodiment in which the left and right drive wheels 5L and 5R are moved left and right by the expansion and contraction movement of the axle housing 18 to adjust the tread displacement between the left and right drive wheels 5L and 5R, the stand 11 is driven in the standing posture. It is assumed that the wheels 5L and 5R are lifted from the ground surface.
[0021]
The auxiliary wheels 1L and 1R are set at the same tread position as the drive wheels 5L and 5R. Accordingly, when working while traveling along the eaves, the left and right auxiliary wheels 1L, 1R and the drive wheels 5L, 5R are caused to travel while being guided by the eaves groove E. For this reason, a lateral support tube 46 is provided below the transmission case 15 constituting a part of the vehicle body 4, and the axle frame 3 is slidably fitted to the support tube 46 in the left-right direction. Auxiliary wheels 1L and 1R are rotatably mounted on both ends of the axle frame 3. Each auxiliary wheel 1L, 1R is rotatable around the steering pin 47 with respect to both ends of the axle frame 3, and is operated by an operation lever or the like of the handle 9 via the steering arm 48, the tie rod 49, or the like. It can also be set as the structure which performs direction operation.
[0022]
The moving handle 2 protrudes forward from the right end portion of the axle frame 3 and the operator can move the axle frame 3 by gripping the moving handle 2 by hand. A lock handle 6 is provided on the right side of the front side of the support tube 46 on the side of the movable handle 2 so that a lock pin 50 between the support tube 46 and the axle frame 3 can be inserted and removed. Move and fix. As described above, the movable handle 2 and the lock handle 6 are provided in the same direction and close to each other to facilitate the operation.
[0023]
As described above, the left driving wheel 5L and the auxiliary wheel 1L are located close to the left side of the vehicle body 4, and the right driving wheel 5R and the auxiliary wheel 1R are largely separated from the right side of the vehicle body 4 to the side. That is, the seedling planting work can be carried out on the ridge with the vehicle body 4 being displaced to the left with respect to the tread between the drive wheels 5L and 5R. In this mode of operation, when seedlings are reciprocated over the same ridge width, seedlings are planted on the left side of the ridge width in the forward stroke, and seedlings are planted on the right side in the backward stroke. Can be done. Even if the working width of the seedling planting device 10 is narrowed to reduce the weight of the machine body and the tread is widened, a light and stable seedling planting operation can be performed.
[0024]
[Second embodiment]
Differences from the above example will be described with reference to FIGS. When the drive wheels 5L, 5R, the auxiliary wheels 1L, 1R, etc. are moved to the left and right, the work can be easily performed by raising the stand 11, but a stand handle 51 is provided at the lateral end of the stand 11, and the stand handle The stand 11 can be easily inserted and removed by the operation 51.
[0025]
[Third embodiment]
Differences from the above example will be described with reference to FIG. Which was provided the drive wheels 5L, or to traverse the 5R, wheel transmission case handles 52 for vertically moving the rear end portion of the wheel transmission case 20, the way of traveling along the upper side of the wheel transmission case 20 It is provided at a position where it does not become.
[0026]
[Fourth embodiment]
Differences from the above example will be described with reference to FIGS. When seedling planting work is performed on the upper surface A of the cocoon covered with the multifilm 53 by the seedling planting apparatus 10, it is necessary to accurately plant the seedling in the planting hole 54 formed in the multifilm 53. Here, a vehicle speed sensor 56 for detecting the vehicle speed of the vehicle body 4 and a mechanism for making the timing for driving the seedling planting device 39 variable are provided, and a hole position for detecting the planting hole 54 ahead of the seedling planting device 39 portion. A sensor 57 is provided, and after the planting hole 54 is detected by the hole position sensor 57, the driving timing is adjusted by the seedling planting device 39 so that the transplanting position matches the position of the planting hole 54 (FIG. 10). Flowchart). 59 is a controller for this purpose, and 60 is a work switch for making this multi-film planting. M1 and M2 are electromagnetic mechanisms that operate the main clutch 61 and the planting clutch 58 by the output from the controller 59.
[0027]
Therefore, the marker 55 made of a printing part such as a metal or magnetic material formed in the planting hole 54 of the multi-film 53 is detected by the hole position sensor 57 as the planting position, and the timing of the planting clutch 58 according to the vehicle speed. Is to adjust. Here, it is preferable that the vehicle speed sensor 56 has a one-rotation prescribed pulse output type configuration such as a rotary encoder for the rotational speeds of the drive wheels 5L, 5R and the like. Further, the position of the planting hole 54 is detected by applying a sound wave or the like to the multi-film 53 on which the marker 55 is formed, and determining the difference in the attenuation rate of the reflected wave.
[0028]
Then, the position of the planting hole 54 is detected in front of the seedling planting part, and a moving speed calculation (the count value of the distance sensor) is calculated from the distance mechanically determined by the mounting position of the hole position sensor 57 and the planting position. ) Since the planting timing is adjusted to the position of the planting hole 54, planting synchronized with the planting hole 54 can be performed.
[Brief description of the drawings]
FIG. 1 is a plan view of an auxiliary wheel portion of a seedling transplanter showing a first embodiment.
FIG. 2 is a plan view showing the operation.
FIG. 3 is a plan view of a seedling planting machine.
FIG. 4 is a side view thereof.
FIG. 5 is a partial hydraulic circuit diagram thereof.
FIG. 6 is a side view of a stand portion showing a second embodiment.
FIG. 7 is an enlarged perspective view of a part thereof.
FIG. 8 is a side view of a drive wheel portion showing a third embodiment.
FIG. 9 is a block diagram of a seedling planting timing control unit showing a fourth embodiment.
FIG. 10 is a flowchart of the control.
FIG. 11 is a plan view of the multi-film portion.
[Explanation of symbols]
1L, 1R Left and right auxiliary wheels 2 Moving handle 3 Axle frame 4 Car body 5L, 5R Left and right driving wheels 6 Lock handle 7 Engine 8 Handle frame 9 Handle 10 Seedling device 11 Stand 15 Mission case 16L, 16R Left and right axle tube 17 Bracket 18 Left and right axle Housing 20 Right and left wheel transmission case 42 Bracket base 43 Bracket 44 Pin 46 Support tube 51 Stand handle 52 Wheel transmission case handle C Standing posture D Storage posture

Claims (2)

An engine (7) is provided at the front, left and right drive wheels (5L, 5R) are arranged at both left and right sides, a handle frame (8) is arranged at the rear, a handle (9) is arranged, and the seedling planting device (10) The left and right auxiliary wheels (1L, 1R) are arranged at the front end of the vehicle body (4), and the stand (11) is placed under the vehicle body (4) in the standing posture (C) and the storage posture (D). In the seedling transplanter provided so as to be freely switched, a pair of front and rear tubes are arranged in parallel on both the left and right sides of the transmission case (15) transmitted from the engine (7), and protrudes outwardly from the left and right. ) Connected to the left and right axle tubes (16L, 16R), and the left and right axle housings (16L, 16R) are rotatably fitted to the left and right axle housings (18), respectively. each The left and right wheels transmission case (20) is fixed,該Sayu wheel transmission case (20) left and right drive wheels (5L, 5R) in the rear end portion of provided with respectively the upper rear end portions of the left and right wheels transmission case (20) A wheel transmission case handle (52) is provided along the left and right wheels, the left and right wheel transmission case (20) is turned up and down to change the vehicle height, and the left and right drive wheels (5L, 5R) are moved to the left and right axle housings (18). ) To adjust the tread displacement between the left and right drive wheels (5L, 5R) by moving to the left and right by the expansion and contraction movement, and a lateral support tube (46) is provided below the transmission case (15). An axle frame (3) is fitted to the support tube (46) so as to be slidable left and right, and left and right auxiliary wheels (1L, 1R) are rotatably provided at both ends of the axle frame (3). At the right end of (3) A locking handle for fixing the sliding position of the axle frame (3) to the front end of the support tube (46) on the lateral side of the moving handle (2). (6) A seedling transplanter characterized by being provided.   A pair of left and right brackets (43) are provided on the bracket base (42) at the bottom of the vehicle body (4), and both ends of the loop-shaped stand (11) are pivoted back and forth around the pin (44) on the left and right brackets (43). The stand (11) is provided to be freely switched between a standing posture (C) at the rear lower portion and a storage posture (D) at the upper front portion, and a stand handle is provided at the lateral end of the stand (11). The seedling transplanter according to claim 1, wherein (51) is provided.

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