JPS5926805Y2 - Tobacco soil rotary - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a tobacco soil rotary connected to the rear of a power agricultural machine such as an agricultural tractor or a tiller.

Hereinafter, this invention will be explained in detail based on the embodiments shown in the drawings.

First, the configuration will be explained.

Reference numeral 1 designates an agricultural tractor. At the rear of the wave body of the agricultural tractor 1, two rotary tilling devices 3, 3 having soil culturing devices 2, 2 are disposed in a row in the horizontal direction. The tillers 3, 3 are attached to the rear of the fuselage so as to be movable up and down, and the lift rods 5, 5 connected to the lift arms 4, 4, the lift arms 4, 4, and the lower part of the fuselage extend rearward. It is supported by a lower link (not shown) so that it can be raised and lowered.

More specifically, 6, 6 are supporting plates facing each other along the vertical direction, and a gear case 7 having a bevel mechanism is positioned between the left and right supporting plates 6.
This gear case I is constructed integrally with the support plates 6, 6 using horizontal connecting rods 8, 8, and the front upper part of the support plates 6, 6 is connected to the lower end of the lift rods 5, 5. 6
, 6 is pivotally connected to the rear end of a lower link (not shown) on the front side.

In addition, for the left and right sides of the gear case 7, a power transmission shaft 9 and a sliding shaft 10 are mounted in a direction orthogonal to the direction of movement of the aircraft with an appropriate distance between the front and back, and the power is extracted. A spline groove 9 along the axial direction is formed on the outer end shaft circumference of the shafts 9, 9.
a, 9a are engraved.

Spline grooves 9a, 9 of the power transmission shaft 9.9 protruding into the gear case 11.11 of the rotary tiller 3, 3
a and a sprocket (not shown) in the gear case 11.11 are configured to be able to slide relative to each other, and the rotation of the power transmission shafts 9, 9 is controlled by a sprocket mechanism (not shown) consisting of this sprocket and a chino, etc. Cultivating claws 3a through
It is configured to transmit the information to the tilling shaft 3b having...

Adjustment of the movement of the rotary tilling devices 3, 3 in the width direction is performed by a bundle 12.12 attached to the upper part of the gear case 11.11 of the devices 3, 3, and by rotating this bundle 12.12 as appropriate. , a cylindrical body 13, 1.3 fixedly provided on the inside of the gear case 11.11 moves in and out of the sliding shafts 10, 10 in the direction of internal and external lateral forces, and rotates the left and right rotary tillers 3, 3 are laterally moved separately and independently.

In addition, the tilling cover 14.14 of the rotary tilling device 3, 3
A support rod 15.15 is provided on the front part of the tiller cover 14.15 along the longitudinal force direction, and a mounting plate 16.15 is provided at the middle part of the lateral side of the tillage cover 14.
16 is provided, and in the lower part of this tilling cover 14.14, behind the tilling part consisting of tilling claws 3a... and tilling shaft 3b, etc., there is a V that constitutes the culturing soil device 2.2 in plan view. Letter-shaped ridged soil plates 17, 17 are provided, and the expansion angles of these ridged soil plates 17, 17 are configured to be freely adjustable.

18.18 is the support rod 15, 15 and the mounting plate 16.
A leaf guard board 18.18 is supported by a chain 19.19 suspended from a chain member 16 so as to be swingable in the front and rear and left and right directions. The height above the ground is gradually increased from the front side to the rear side (in Fig. 2).
(even if the rear end is illustrated with the rear end h higher than the front end)
Its lower end is gently curved outward to form an inclined surface.

In addition, the reference numeral 20.20 in the figure indicates the rotary tillage device 3, 3.
21.21 is a bundle for height adjustment of the tail wheel 20.20 is a front wheel of the agricultural tractor 1; 23.23 is a rear wheel; 24 is a steering bundle; 25 2 is a power take-off shaft, 26 is a joint cover, and 27 is an input shaft of a rotary tiller 3, which is mounted on the front part of the gear case 7 so as to face forward.

Since the structure is as described above, when adjusting the movement of the rotary tillers 3, 3 in the left and right lateral directions according to the spacing between the furrows or the width of the furrows in the field, the rotary tillers 3,
By rotating the bundles 12, 12 of 3, the sliding shaft 10.10
The cylindrical body 13.13 fitted on the outside is expanded and contracted in the width direction.

At this time, the gear case 11 of the rotary tiller 3,3.
Spline grooves 9a, 9a carved on the outer ends of the power transmission shafts 9, 9 protruding into the gear case 11, 11.
The inner sprocket (not shown) is fitted in a relatively slidable state, so the rotary tiller 3.3
Even if it moves in the width direction within a certain range, the power take-off shaft 25 will not interfere with the power transmission to the tilling shaft (not shown).

When the aircraft is run in this condition, the tobacco leaves that have fallen down on the slope of the ridge where no medium plate cultivation has been done,
A leaf guard made of an elastic material that is scooped out at the bottom of the front tip of leaf guard plates 18 and 18 disposed on the left and right sides of the rotary tillage devices 3, 3 and gradually raised in height from the ground. Board 18
．． The lower leaves of the tobacco plants hanging down are lifted upwards while being guided by the sides of the 18, and during this time the tilling work and the arbor work are carried out.

In particular, according to this invention, since the leaf protection boards 18, 18 are suspended by flexible members 19, 19 such as chains so as to be swingable in the front-rear and left-right directions, the ridged soil boards 17, The soil gathered to the side of the rotary tiller 3.3 in step 17 is not applied to the lower leaves of the tobacco plants and damages the lower leaves, and the soil can be sufficiently cultivated up to the base of the tobacco plants.

Furthermore, in this embodiment, two rotary tilling devices 3, 3 are installed in the rear side of the agricultural tractor 1 in a horizontally movable manner, so that the working efficiency is further improved compared to the conventional one.

[Brief explanation of drawings]

The drawings show an embodiment of this invention, with FIG. 1 being a plan view and FIG. 2 being a perspective view of the main parts. Explanation of symbols, 1... Agricultural tractor, 2, 2.
...Soil cultivation device, 3,3...Rotary tillage device, 4゜4...Lift arm, 5,5...
... Lift rod, 6.6 ... Support plate, 7.
...Gear case, 8,8...Connection rod, 9
, 9... Power transmission shaft, 9a, 9a...
Spline groove, 10.10...Sliding shaft, 11°11...Gear case, 12.12...
Bundle, 13.13...Cylindrical body, 14,14
・・・・・・Plowing cover, 15.15・・・・Support, 16, 16・・・・Mounting plate, 17.17・・・・
...Rounded soil board, 18.18... Leaf protection board, 19
．． 19... Chain, 20.20... Tail wheel,
21゜21...Bundle, 22.22...
...Front wheel, 23, 23... Rear wheel, 24...
... Steering bundle, 25 ... Power take-off shaft, 26 ... Joint cover, 27 ...
...Input shaft.

Claims (1)

[Scope of utility model registration request] At the rear lower part of the rotary tilling device 3, 3 installed at the rear of the aircraft,
Cultivating soil plates 17.17, which are V-shaped in plan view, are attached so as to be able to freely adjust the expansion angle, and the rotary cultivating device 3.3 is equipped with elastic bodies on the left and right sides of the rotary cultivating device 3.3. A leaf guard plate 18 that is constructed by gradually increasing the height from the ground and having its lower end curved slightly outward.
．． 18 is suspended by flexible members 19 and 19 such as chains so as to be movable back and forth and laterally.