JPS5810408Y2 - rice transplanter - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rice transplanter having a float, and particularly relates to the body structure of the rice transplanter main body.

A float is placed below the rice transplanter main body, and two pairs of left and right wheels are provided on both sides of the float, and these wheels are placed on the free end side of a swinging arm that is pivotally supported to be vertically rotatable relative to the rice transplanter main body. A device is known in which the vertical adjustment is performed by rotating a pivotally supported swinging arm.

In this case, due to the thickness required for the buoyancy of the float itself and the correlation between each device installed on the rice transplanter main body, the pivoting position of the swinging arm will be higher, and each of the devices installed on the rice transplanter main body will be The center of gravity of the device could not be lowered too much.

For this reason, in fields with deep tillers, the wheels go deep into the mud and stand up, causing the machine to tilt backwards due to the drive reaction force, resulting in poor balance between the front, back, left and right sides of the machine, and poor running performance.
In addition, due to the pivot position of the swing arm to the main gearbox, the overall length of the aircraft becomes longer and the turning radius becomes larger, resulting in disadvantages such as the need to leave a large amount of headland. was there.

In view of the above-mentioned drawbacks, the purpose of the present invention is to mount each device on the rice transplanter main body at the lowest possible position, and in particular, to set the pivoting position of the swinging arm at a low and forward position. This position prevents the wheels from standing up in fields with deep tillers, and also keeps the center of gravity of the entire machine low, providing good balance between front, back, left and right, and improving the running performance of the machine. To provide a rice transplanter which can reduce the headland area by shortening the length of the machine body and reducing the turning radius of the machine body.

In order to achieve this objective, the present invention arranges the engine and main gearbox in the front of the rice transplanter main body, and the planting device button and its gearbox in the rear to balance the front and rear, and the main gearbox and the main gearbox, The lower part of the gear box of the planting device is connected by a frame containing a power transmission mechanism, and the side cylinder shape of the rice transplanter main body is configured to form a concave shape,
The present invention is characterized in that wheels are disposed on both sides of the frame and are pivotally supported on the free end side of a swing arm that is vertically rotatably supported on the main gear box.

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, numeral 1 is the rice transplanter main body, and this rice transplanter main body 1
is equipped with a float 2 on its lower side and a pair of wheels 3 on its left and right sides.

The float 2 has a bracket 4 provided at the rear thereof pivotally supported on the rice transplanter main body 1, and a front portion thereof is swingably attached to the rice transplanter main body 1 via a link body 5.

The rice transplanter main body 1 is equipped with an engine 6 at the front,
A belt transmission system 8 is disposed between this and the main gear box 1 provided at the lower rear thereof, and a gear box 10 of the planting device 9 is disposed at the rear.

The main gear box T and the gear box 10 are connected to each other by a cylindrical frame 11 at the bottom, and are arranged so that the side surfaces form a concave shape. A power transmission shaft 12 is inserted therethrough, and power is transmitted from the main gear box T to the gear box 10.

A hydraulic device 13 is provided above the gear box T, and a belt transmission system 14 is provided between the hydraulic device 13 and the engine 6.

The power transmitted from the engine 6 to the power transmission shaft 15a of the main gear box 7 by the belt transmission system 8 is shifted into two systems, one of which protrudes to both sides of the main gear box 10 and is connected to the power transmission shaft 15a. The other shaft is transmitted to the gear box 10 via the transmission shaft 12 and the rotating shaft 15 located at the lower front side.

A swinging arm 16, which also serves as a chain case, is pivotally supported on the rotating shaft 15 so as to be rotatable in the vertical direction, and the wheel 3 is pivotally supported on the roadside side of the swinging arm 16, and power is transmitted thereto.

Further, a connecting arm 1T is attached to the swing arm 16, and the arm 1T is connected to the hydraulic device 1 via a connecting rod 1B.
It is connected to the tip of the piston 19 of No. 3.

Then, the swing arm 1 is moved by the expansion and contraction movement of the piston 19
6 is rotated to move the wheels 3 up and down.

On the other hand, the planting device 9 includes a vertical tank 22 that is reciprocated in the left-right direction along a guide rail 21 while leaning on a handle 20, and a front tank 22 that has a seedling outlet (not shown) along the lower end of the seedling tank 22. Board 23, a planting body 2 in which the seedlings are taken out one by one from the seedling outlet and planted in the field.
4, etc. are provided, and these receive power from the gear box 10.

The engine 6, main gear box T, gear box 10, etc. provided in the rice transplanter main body 1 are installed at a low position as close to the float 2 as possible. 16. The planting device 9 and the like are also installed at a low position, and the center of gravity of the machine is set extremely low.

In addition, the upper surface of the float 2 facing the rice transplanter main body 1 may be formed with a recessed portion as necessary to accommodate a portion protruding from the rice transplanter main body 1.

In such a configuration, when driving on the road, the hydraulic system 13
By pushing out the piston 19 of the
8. Rotate the swinging arm 16 downward via the linking arm 1T, lower the wheels 3, touch the ground, and run.

When meeting and performing rice transplanting work, the wheels 3 in contact with the tiller in the field are raised in the opposite way to the above, and when the bottom of the float 2 supports the rice transplanter main body 1 in contact with the field surface, the hydraulic system 13 The operation of the float 2 is stopped, the wheels 3 are driven, and the float 2 levels the planting surface at the same time as it slides, and the planting device 9 performs the planting work.

In addition, when accompanied by the aircraft, the operation of the planting device 9 is stopped and the wheels 3 are lowered at the same time as the aircraft moves, but even when traveling on the road,
The machine has a low center of gravity and is well balanced front to back, left and right, allowing for stable running and avoiding risks such as rollover.

Furthermore, even if the plow in the field is deep and the wheels 3 are lowered to the lowering limit position, the pivot position of the swinging arm 16 (rotary shaft 15)
is low and is located in front of the power transmission shaft 15a, so the length of the swinging arm 16 is also set long.Therefore, the wheel 3, which moves up and down according to the depth of the tiller, has its center in the front-rear direction. In addition, the angle between the swinging arm 16 and the horizontal plane is small, making it difficult to stand up in the mud. Provides stable running performance.

Furthermore, as described above, since the pivot position (rotary shaft 15) of the swinging arm 16 is on the front side of the power transmission shaft 15a, when the length of the swinging arm is constant, the wheel position is moved toward the front of the aircraft. Since the aircraft can be moved close to each other, the overall length of the aircraft can be shortened and its turning radius can be reduced, and therefore, the headland can be reduced.

As described above, according to the present invention, the balance between the front and back and left and right sides of the aircraft is improved, stable running performance is obtained, and
The wheels do not stand up even in fields with deep plowing plates, so stable planting work can be performed without tilting the machine.Furthermore, when the length of the swinging arm is kept constant, the overall length of the machine can be shortened. As a result, excellent effects can be obtained, such as making the headland smaller.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view;
FIG. 2 is a plan view. 1... Rice transplanter body, 2... Float, 3... Wheels, 4... Bracket, 5... Link body, 6... Engine, 7... Main gear box, 8...・Belt transmission system, 9... Planting device, 10... Gear box, 11
... Frame, 12... Transmission shaft, 13... Hydraulic device, 14... Belt transmission system, 15... Rotating shaft, 15
a... Power transmission shaft, 16... Swinging arm, 17...
Connecting arm 18...Guiding rod, 19...Zeston, 20...
... Handle, 21 ... Guide rail, 22 ... Seedling tank, 23 ... Front plate, 24 ... Planting body.

Claims (1)

[Scope of utility model registration request] A float is arranged on the lower side of the rice transplanter main body, and an engine and a main gear box as close as possible to the float are arranged in front of the rice transplanter main body, and a planting device button and a main gear box are arranged in the rear. The gearboxes of the planting device are arranged as close as possible to the floats to balance the front and back, and the lower parts of the main gearbox and the gearbox of the planting device are connected to a frame containing a power transmission mechanism. Swing arms are connected to each other so that the side surface shape of the rice transplanter main body is concave, and are pivoted on both sides of the frame at the lower front side of the position of the power transmission shaft from the prime mover side to the main gear box. A rice transplanter characterized by having a wheel pivotally supported on the free end side of the rice transplanter.