JPH022169Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for extracting power from a planting chain case in a rice transplanter.

In other words, this rice transplanter is constructed by installing a crank for driving the planting claws so that it can be rotated by the lower output shaft of a vertical planting chain case whose upper part is transmission-connected to the planting transmission case located in the center of the machine. When transmitting power from the planting chain case to, for example, a fertilizer application machine, in the conventional type, the power must be extracted from either the input shaft or the output shaft at the top and bottom of the case; However, power extraction is difficult due to complicated structure, assembly and strength issues, and the number of revolutions is limited, making it impossible to extract power at the desired number of revolutions.
There was a problem in that the location of the power output was also limited to the top and bottom of the planting chain case.

The present invention solves this problem. Even at the desired rotation speed, the position of the power take-off can be set appropriately, and the power can be taken out well. It is provided so that it can be implemented.

Next, the embodiment shown in the drawings will be described.

Fig. 1 shows a side view of the rice transplanter, in which an engine E is mounted above the front part of a main float 9 with side floats 8, 8 arranged side by side on both sides, and wheels 10, 10 are mounted on both rear sides of the engine E, respectively. A swing-type transmission case 11, 11 with axes is installed, and a planting depth adjustment lever 13 is interposed between the rear frame 12 and the rear of the main float 9. The handles 14, 14 are extended, and a seedling platform 15 is installed obliquely in front of the hands 14, 14, and the seedling platform 15 reciprocates laterally along a seedling take-out platform 16 horizontally installed below. It is installed in the same manner as the conventional structure.

Further, a planting transmission case 1 which is powered by the engine E is installed on the lateral center side of the machine body, which is the front side of the seedling platform 15. Transmission pipe 1 extending to
Transmission shafts 18, 18 are inserted into the insides of the transmission pipes 17, 17, respectively, and the tips of the transmission pipes 17, 17 are connected to the upper parts of vertical planting chain cases A, A, which stand up above the side floats 8, 8, respectively. A sprocket 19 is fitted in the upper part of the planted chain cases A, A, and the input shaft 5 connected to the transmission shaft 18 is mounted thereon, and a sprocket 20 is mounted in the lower part of the planted chain cases A, A. The fitted output shafts 2 are each mounted on a shaft, and the bases of cranks 4 are fitted and connected to the tips of the output shafts 2 protruding inward from the case, respectively, and planting claws 3 are connected to the tips. A driven arm is connected to the middle part of the planting arm 21 with the tip side of the crank 4 freely positioned, and is connected between the end of the planting arm 21 and a bracket 22 hanging down from the lower part of the planting chain case A. 23 is inserted, and the structure is similar to the conventional structure.

Both power take-off shafts 7, 7a are mounted inside the upper part of the planted chain case A, and both shafts 7, 7a have intermediate sprockets 6, 6a having a predetermined number of teeth.
are fitted together, and one end side of both shafts 7, 7a is pivotally supported in the shaft support 24, 24a on one side of the case, and the other end side of both shafts 7, 7a is supported in the support hole 2 on the other side of the case.
5, 25a and extend outward, for example, a flexible power transmission shaft or the like is installed at the other end so that it can be detachably connected to both shafts 7, 7.
Caps 26 and 26a are detachably attached to the outer surface of the case so as to cover the protruding end of the case.

Further, one chain B is hung on the sprockets 19, 20 and the intermediate sprockets 6, 6a,
An oil filler cap 27 is attached to an oil filler port formed on the lower side of the planting chain case A.

FIG. 6 shows another embodiment, in which sprockets 19 and 20 are installed at the top and bottom of the planting chain case A, respectively.
The input shaft 5 and output shaft 2 fitted with A plate spring 28 for dual purpose is installed, and 1
A book chain B is hung on sprockets 19, 20, an intermediate sprocket 6, and a leaf spring 28.

Therefore, the power take-off shafts 7, 7a can be positioned at desired heights,
By selecting the number of teeth of the intermediate sprockets 6 and 6a, power can be extracted at a desired rotation speed. For example, when the machine is equipped with a fertilizer applicator, power can be transmitted from a desired height and at a desired rotation speed. You will be able to do so.

Incidentally, when power is not taken out, the caps 26, 26a can be covered and left in a state where there is no problem.

In this way, the present invention can rotationally drive the crank 4 for driving the planting claws 3 by the lower output shaft 2 of the vertical planting chain case A whose upper part is transmission-connected to the planting transmission case 1 in the center of the machine. In a rice transplanter configured as shown in FIG.
At least one intermediate sprocket 6 is engaged in the middle of the chain B that rotates between the two, and the shaft of the intermediate sprocket 6 is protruded outward from the case as a power take-off shaft 7, so that the desired rotation speed can be achieved. In addition, the position of the power extraction can be set well, and the power can be extracted reliably and well from the planting chain case A, and it has the advantage that it can be implemented suitably with a simple structure.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the rice transplanter, Fig. 2 is a plan view thereof, Fig. 3 is a side view of the main parts, Fig. 4 is an internal view thereof, and Fig. 5 is a side view of the rice transplanter. A sectional view of the main part, FIG. 6, shows another embodiment. 1... Planting transmission case, A... Planting chain case, 2... Output shaft, 3... Planting claw, 4...
Crank, 5... Input shaft, B... Chain, 6...
Intermediate sprocket, 7...Power take-off shaft.

Claims (1)

[Scope of utility model registration request] The lower output shaft 2 of a vertical planting chain case A, whose upper part is transmission-connected to the planting transmission case 1 in the center of the machine, is installed so that a crank 4 for driving the planting claws 3 can be rotationally driven. In the rice transplanter, a chain B is wound around the input shaft 5 and the output shaft 2 which are mounted vertically in the planting chain case A.
A device for extracting power from a planted chain case, characterized in that at least one intermediate sprocket 6 is engaged in the middle of the case, and the shaft of the intermediate sprocket 6 is protruded outward from the case as a power output shaft 7. .