JP4543241B2 - Rice transplanter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice transplanter.
[0002]
[Prior art]
Conventionally, the transmission case of a seedling planting part of a rice transplanter is configured by a box-type case having an opening in a part thereof, and a lid is provided in the part of the opening. It was a thing of the grade.
[0003]
[Problems to be solved by the invention]
The present invention is intended to reduce the number of parts and reduce the weight.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention described in claim 1 is to take one seedling from the seedling tank (10) that reciprocates left and right at the rear of the vehicle body (1) provided with the front wheel (2) and the rear wheel (3). In a rice transplanter equipped with a seedling planting part (7) provided with a plurality of planting ridges (11) to be moved up and down, planting provided in the seedling planting part (7) in the lateral direction of the machine body planting driving Ke for interior drive shaft (16) - scan (17) and with said plant driving Ke - scan Beberuke to interior of the first bevel gear (20) provided at both ends of the (17) - and scan (18) the Beberuke - scan (18) the vertical transmission Ke to interior vertical transmission shaft extends rearwardly (21) from - scan (19) the vertical transmission shaft (21) a second being transmission via a bevel gear mechanism from the planting provided an output shaft which drives the Uekomi杆(11) (23) transmission Ke - scan (22) is provided, Beberuke - scan (18) The upper and lower cases (18a, 18b) are configured, a protrusion (28) is provided on the bevel case (18), and an engagement hole (29) into which the protrusion (28) is fitted in the longitudinal transmission case (19). The vertical transmission case (19) is sandwiched between the upper and lower cases (18a, 18b) so that the protrusion (28) and the engagement hole (29) are fitted, and the vertical transmission is performed by the upper and lower cases (18a, 18b). The case (19) is sandwiched and fixed, and the planting transmission case (22) is composed of upper and lower split cases (22a, 22b) divided with the output shaft (23) as a branch point. The output shaft (23) protrudes from the planting transmission case (22) to the left and right sides, drives the left and right implantation rods (11), and is sandwiched between the upper and lower split cases (22a, 22b). configuration and thereby, the inclination of the seedling holding tank slide plate (38) of the seedling holding tank (10) (10) It is moved along the direction and configured to adjust the amount taken of seedlings implantation rod (11), seedling-up amount adjusting lever - moving (37) the slide plate by the operation of the (38) Kaidoa - beam ( planting driving Ke rotational fulcrum shaft (35) of 33) - is obtained by a rice transplanter, characterized in that provided in the scan (17) the flange member provided on the end portion (31).
[0005]
[0006]
【The invention's effect】
Therefore , the seedling planting part (7) is provided with a planting drive case (17) in which a planting drive shaft (16) provided in the left-right direction of the machine body is provided and at both ends of the planting drive case (17). is first Beberuke to interior a bevel gear (20) - scan (18) and said Beberuke - scan (18) the vertical transmission to interior vertical transmission shaft (21) extending rearwardly from Ke - scan (19) vertical A planting transmission case (22) provided with an output shaft (23) for driving the planting rod (11) by being transmitted from the transmission shaft (21) through the second bevel gear mechanism is provided . The case (18) is composed of upper and lower cases (18a, 18b), the bevel case (18) is provided with a projection (28), and the projection (28) is fitted into the longitudinal transmission case (19). By providing a hole (29) and sandwiching the longitudinal transmission case (19) between the upper and lower cases (18a, 18b) The raising (28) and the engagement hole (29) are fitted together, and the vertical transmission case (19) is sandwiched and fixed between the upper and lower cases (18a, 18b), and the planting transmission case (22) Is composed of upper and lower split cases (22a, 22b) divided with the output shaft (23) as a branch point, and the output shaft (23) protrudes from the planting transmission case (22) to the left and right sides. left and right implantation rod (11) driven Te, the upper and lower split Ke - scan (22a, 22b) with a structure sandwiched between the seedling mounting slide plate (38) seedlings placing tanks tank (10) (10 ) of the inclined direction is moved along with the structure for adjusting the amount taken of seedlings implantation rod (11), seedling-up amount adjusting lever - (Kaidoa moving the slide plate (38) by the operation of 37) - beam (33) planting driving Ke rotational fulcrum shaft (35) of - scan (17) the flange member provided on the end portion Since those provided in 31), the structure of regulation portion of the take of the transmission mechanism portion and the seedlings can be compared to the prior art, achieving reduction and weight reduction of the parts. Further, the planting transmission case (22) is composed of upper and lower split cases (22a, 22b) that are divided with the output shaft (23) as a branch point, and the output shaft (23) is composed of the planting transmission case (22). -Since it protrudes from the case (22) to the left and right sides to drive the left and right implantation rods (11) and is sandwiched between the upper and lower split cases (22a, 22b), -By removing the screw (22a) , the transmission mechanism is greatly exposed, and maintenance can be easily performed. Moreover, the output shaft (23) from the assembled bevel gears or the like to case - for tying so as to sandwich in the scan, the output shaft as in the prior art (23) Ke - it is not necessary to connect or disconnect from the scan, decomposition, assembly It becomes easy. Furthermore, the number of parts can be reduced and the weight can be reduced. In addition, the bevel case (18) is composed of upper and lower cases (18a, 18b), a protrusion (28) is provided on the bevel case (18), and the protrusion (28) is provided on the longitudinal transmission case (19). An engagement hole (29) to be inserted is provided, and the vertical transmission case (19) is sandwiched between the upper and lower cases (18a, 18b) so that the protrusion (28) and the engagement hole (29) are fitted to each other. Since the vertical transmission case (19) is sandwiched and fixed by the cases (18a, 18b), a flange is used when attaching the vertical transmission case (19) to the bevel case (18). Since there is no need, the number of parts can be reduced.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
1 and 2 show a 4-row Ueda transplanter, and a pair of left and right front wheels 2 and 2 and rear wheels 3 and 3 serving as traveling wheels are installed before and after a vehicle body 1. A steering device having an operation box 4 and a steering handle 5 at the front upper part of the vehicle body is installed on the step 6, and a seedling planting part 7 that can be moved up and down is provided at the rear part of the vehicle body. A driver's seat 8 is installed on the rear side of the control device, and an engine 9 for transmitting power to each part of the rice transplanter is mounted below the driver's seat.
[0008]
The seedling planting section 7 includes a seedling mounting tank 12 that reciprocates left and right, a seedling planting device 12 for two-row planting having a planting basket 11 that cuts out one seedling and transplants it into the soil, seedling planting It consists of a float 13 or the like for leveling the surface.
The planting input shaft 14 is driven by the power from the engine on the vehicle body side, and the planting drive shaft 16 extending in the horizontal direction through the bevel gear 15 is rotationally driven.
[0009]
Longitudinal transmission cases 19, 19 comprising two round pipes projecting from both ends of the planting drive case 17 that houses the planting drive shaft 16 through the bevel cases 18, 18 project. is doing. The bevel cases 18 and 18 are provided with bevel gears 20 and 20, and the vertical transmission cases 19 and 19 are provided with vertical transmission shafts 21 and 21, respectively.
[0010]
The planting transmission case 22 incorporates a transmission mechanism to the seedling planting device 12, and protrudes left and right from the planting transmission case to rotate the left and right implantation rods 11, 11. The output shaft 23 constructed to be drivable is divided into upper and lower parts, and the upper and lower split cases 22a and 22b are entangled with the output shaft 23 interposed therebetween, and fixed with bolts 22c or the like. It is the structure to do. The output shaft 23 to the implantation rod 11 is interlocked to be rotationally driven from the vertical transmission shaft 21 via a bevel gear mechanism 24.
[0011]
The seedling planting device 12 is a crank-type seedling planting device, and swings around a crank arm 25 driven to rotate by the output shaft 23 and a shaft 26 at the rear end portion of the planting transmission case 22. In this configuration, the seedlings in the seedling mounting tank 10 are cut out one by one from the seedling outlet by the planting rod 11 pivotally attached to the moving arm 27 and implanted into the soil.
[0012]
The one output shaft 23, the pair of left and right crank arms 25, 25 and the arm shafts 25a, 25a are integrated as shown in FIG. 4 so that they can be used as one part. The number of parts is reduced and the weight is reduced.
[0013]
Similarly to the planting transmission case 22, the bevel cases 18 and 18 can be divided into an upper portion 18a and a lower portion 18b, and a protrusion 28 (see FIG. 6) is provided on the bevel case 18 side. An engagement groove or an engagement hole 29 into which the projection 28 is fitted is provided on the longitudinal transmission case 19 side, and the longitudinal transmission case 19 is sandwiched between the upper and lower cases 18a and 18b. The projection 28 and the engagement hole 29 are fitted and fixed with a bolt 30.
[0014]
According to such a configuration, it is not necessary to use a flange when the longitudinal transmission case is attached to the bevel case, so that the number of parts can be reduced.
The flange member 31 at the outer end of the planting drive case 17 is mounted and supported by the bevel case 18, and the flange member 31 and a flange which is fixedly supported on the outer surface of the bevel case 18. Between the member 32, a rotation arm 33 for adjusting the amount of seedlings and a rotation fulcrum shaft 35, 36 of a vertically swinging arm 34 for adjusting the planting depth are installed. According to such a configuration, a dedicated support member for supporting the respective rotation fulcrum shafts is not necessary, so that the number of parts can be reduced and the weight can be reduced.
[0015]
In adjusting the seedling collection amount, the rotation arm 33 is rotated about the rotation fulcrum shaft 35 by the operation of the seedling removal amount adjustment lever 37, so that the slide plate 38 of the seedling loading tank 10 is moved to the above. It moves along the inclination direction of the seedling mounting tank, and the seedling mounting tank 10 is moved along with the movement of the slide plate 38 so that the amount of seedling scraping of the seedling planting device 12 can be adjusted. ing.
[0016]
In adjusting the planting depth, by operating the planting depth adjusting lever, the vertical swing arm 34 is moved up and down around the rotation fulcrum shaft 35 so that the float 13 can be planted. 12 is displaced up and down to adjust the planting depth to the field.
[0017]
In this embodiment, the longitudinal transmission cases 19 and 19 are constituted by round pipes having a circular cross section as shown in FIG. 8 (a). However, as shown in FIG. -You may comprise so that the longitudinal transmission shafts 21 and 21 may be covered with the plate bent in the shape of a hunch. According to this arched transmission case, the weight can be further reduced by being an iron plate and opening downward. Even if this arch-like transmission case is opened downward, it can be covered with a float corresponding to the lower side, so that it is less affected by scattering of mud.
[0018]
At the time of seedling planting work, a soiled mat-like seedling is stored and placed in the seedling mounting tank 10, travels on the vehicle body 1, and each part is rotationally driven while pulling the seedling planting part 7. Then, the seedling planting unit 7 divides the seedlings for one stock from the seedling loading tank 10 that reciprocates left and right while being supported by the bottom surface 13 and sliding on the soil surface. Plant on the soil surface. In this way, four rows of seedlings are planted in a single stroke.
[0019]
Another embodiment 1 (FIG. 9) will be described.
In the embodiment of the present invention (FIG. 9A), a seedling composed of a planting drive shaft 16 in the horizontal direction input from the planting input shaft 14 and two longitudinal transmission shafts 21 and 21 in the front-rear direction. While the transmission path to the planting device 12 is arranged in a U-shape, in another embodiment 1 (FIG. 9B), the transmission from the planting input shaft 14 to the seedling planting device 12 is performed. The path is arranged in a V shape.
[0020]
Therefore, in order to transmit the rotational power from the planting input shaft 14 to the output shaft 23 to the seedling planting device 12, in the embodiment of the present invention (FIG. 9A), the bevel gears a ₁ . a ₂ . a ₃ . a ₄ . a ₅ . a ₆ . a ₇ . a ₈ . a ₉ . While requiring ten bevel gear of a _10, in another embodiment 1 (FIG. 9 (B)), requires only seven bevel gear of the bevel gear b ₁ ~b _7, moreover, one axis (planting drive The shaft 16) can also be eliminated and the number of parts can be greatly reduced.
[0021]
Another embodiment 2 (FIGS. 10 and 11) will be described.
It is convenient if the rice transplanter is equipped with a device that detects whether or not the seedlings have been planted correctly so that there are no missing seeds during the seedling planting operation. It is effective in the machine.
[0022]
Conventionally, a stock removal detection sensor is provided for each line. In this embodiment, as shown in FIG. 10, a stock removal detection sensor for detecting a stock removal (for example, a photoelectric sensor using infrared rays). ) 39 is arranged diagonally (a detection line is provided diagonally) so as to straddle a plurality of the seedling planting rows (three in the embodiment). That is, the missing stock detection sensor 39 is disposed such that the infrared detection line K emitted from the light projecting unit 39a to the light receiving unit 39b is oblique in the horizontal direction.
[0023]
Therefore, in FIG. 11, (b) when there is no stock removal, the interval through which the infrared detection line passes is constant, but (b) when there is a stock removal, the interval through which the infrared detection line passes is not constant. Since the stock removal is determined based on the change in the interval detected by the sensor in this way, it is possible to simultaneously detect a plurality of stock removals by providing an infrared detection line obliquely, and it is necessary to provide a sensor for each product. A low-cost, lightweight stock with no stock. A detection system can be realized.
[0024]
In addition, the missing stock detection system in this embodiment is applied to a 6-jo Ueda transplanter.
[Brief description of the drawings]
[Fig. 1] Side view of rice transplanter [Fig. 2] Cut-away plan view of the same main part [Fig. 3] Side view of the same main part [Fig. 4] Cut-off plan view of the same main part [Fig. [Fig. 6] Cut side view of the main part of the same. [Fig. 7] Cut side view of the main part of the same. [Fig. 8] Cross-sectional view of the longitudinal transmission case. [Fig. FIG. 10 is a plan view of the main part of the second embodiment. FIG. 11 is a plan view of the main part of the embodiment.
DESCRIPTION OF SYMBOLS 1 Car body 2 Front wheel 3 Rear wheel 4 Operation box 5 Steering handle 6 Step 7 Seedling planting part 8 Driver's seat 9 Engine 10 Seedling tank 11 Planting basket 12 Seedling planting device 13 Float 14 Planting input shaft 15 Bevel gear 16 Planting drive shaft 17 Planting drive case 18 Bevel case 19 Vertical transmission case 20 Bevel gear 21 Vertical transmission shaft 22 Planting transmission case 22a Upper split case 22b Lower split case 23 Output shaft 24 Bevel gear mechanism 25 Crank arm 31 Flange member 33 Rotating arm 35 Rotating fulcrum shaft 37 Seedling amount adjusting lever 38 Slide plate

Claims (1)

A plurality of planting pots for taking one seedling from a seedling tank (10) reciprocating left and right at the rear of the vehicle body (1) provided with the front wheel (2) and the rear wheel (3) and planting it in the soil In the rice transplanter equipped with the seedling planting part (7) provided with (11) so that it can be moved up and down, the seedling planting part (7) is provided with a planting drive shaft (16) provided in the lateral direction of the machine body. driving Ke - scan (17) and with said plant driving Ke - for interior a first bevel gear (20) provided at both ends of the scan (17) Beberuke - scan (18) the Beberuke - backward from the scan (18) The extension rod (11) is driven by being transmitted through the second bevel gear mechanism from the longitudinal transmission case (19) and the longitudinal transmission shaft (21) which are extended and housed in the longitudinal transmission shaft (21). planting transmission Ke provided an output shaft (23) - scan (22) is provided, Beberuke - scan (18) the upper and lower cases (18a, 18b) The bevel case (18) is provided with a projection (28), the longitudinal transmission case (19) is provided with an engagement hole (29) into which the projection (28) is fitted, and the upper and lower cases (18a, 18b) ), The projection (28) and the engagement hole (29) are fitted together by sandwiching the longitudinal transmission case (19), and the longitudinal transmission case (19) is sandwiched between the upper and lower cases (18a, 18b). The planting transmission case (22) is composed of upper and lower split cases (22a, 22b) divided with the output shaft (23) as a branch point, and the output shaft (23) is planted. The left and right implantation rods (11) are driven to project from the attached transmission case (22) to the left and right sides, and sandwiched between the upper and lower split cases (22a, 22b). 10) The slide plate (38) is moved along the inclination direction of the seedling tank (10), and the planting pod (1 ), And the rotation fulcrum shaft (35) of the rotation arm (33) that moves the slide plate (38) by operating the seedling adjustment lever (37) is planted. A rice transplanter characterized in that it is provided on a flange member (31) provided at the end of the attached drive case (17) .

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