JPS5948601B2 - elevated tractor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevated cedar leaf tobacco harvesting machine that harvests leaves while straddling tall tobacco plants planted in a field.

Conventional leaf picking devices, such as an elevated cedar leaf tobacco harvesting machine equipped with a leaf picking device shown in "Leaf picking device for tobacco leaf harvesting" (Japanese Unexamined Patent Publication No. 52-98136), run while straddling tobacco crops. It is necessary to have a height of 3 m or more above the ground, and in order to run it stably, its length and width must be increased.

For this reason, when using an elevated cedar leaf tobacco harvester, a large headland is required for turning at the edge of the ridge.
There were drawbacks such as the need for skill in its operation.

Furthermore, when used in fields with different distances between rows, extremely complicated preparation operations were required to match the spacing and travel distance between the left and right leaf picking devices.

The present invention does not have these drawbacks, that is, it is easy to operate on the ridge, the headland can be minimized, and
It is an object of the present invention to provide an elevated cedar leaf tobacco harvesting machine whose ring width can be freely adjusted.

In addition, the present invention also eliminates the risk of falling when traveling in the contour line direction on a slope.
It is an object of the present invention to provide an elevated cedar leaf tobacco harvesting machine that can appropriately adjust the height at which the leaf picking device operates, that is, the position of the leaves to be picked.

An embodiment of the present invention will be described with reference to a drawing showing an elevated cedar leaf tobacco harvesting machine. It consists of an upper frame 3 to which the top of a piston cylinder 2 is fixedly connected.

The upper parts of the pair of left and right frames 1 are fixed to the upper frame 3,
The two are connected by an extendable horizontal piston cylinder 4 so that the wheel width can be adjusted to the distance between the ridges of the field.

The lower part of the frame 1 is fixed to a lower frame 6 via a mounting frame 5 at the bottom of the vertical piston cylinder 2.

Wheels 9 are attached to the lower part of the lower frame 6 via a mounting plate 7 and a wheel mounting frame 8, resulting in a four-wheeled structure, and each wheel 9 can be moved forward and backward by a hydraulic motor 10 provided on each wheel. Rotationally driven.

A shaft (not shown) is fixed to the upper surface of the wheel mounting frame 8, and connected to a hydraulic swing motor 11 provided on the mounting plate 7 via a bearing (not shown) provided on the mounting plate 7. The running direction of the wheels 9 can be swung left and right by at least 90 degrees by the hydraulic swing motor 11.

The above-mentioned supply of high-pressure oil, which serves as the driving force for the vertical piston cylinder 2, horizontal piston cylinder 4, hydraulic motor 10, and hydraulic swing motor 11, is performed by a hydraulic supply device 12 installed on the lower frame 6. be exposed.

The hydraulic supply system 12 includes an engine 13, a hydraulic pump 14, and an oil tank 15.

Expansion and contraction of the vertical piston cylinder 2 and horizontal piston cylinder 4, adjustment of the rotation direction and speed of the hydraulic motor 10, and operation of the hydraulic swing motor 11 are performed at the bottom.

This is performed using a hydraulic control device 16 installed on the frame 6.

Vertical piston cylinder 2, horizontal piston cylinder 4, hydraulic motor 10, hydraulic swing motor 11 and hydraulic supply device 12
, the hydraulic control device 16 is connected by a conduit (not shown), and an operator on the driver's cab 17 controls the vertical piston cylinders constituting the pair of left and right frames 1 for driving and steering the elevated leaf tobacco harvesting machine. 2 and the frame 1 are expanded and contracted.

18 is a bundle that controls the hydraulic swing motor 11;
this.

By operating the bundle 18, the running direction of the wheels 9 is changed.

Reference numeral 19 denotes a lever for controlling the rotational direction and speed of the hydraulic motor 10, thereby making it possible to control the rotational direction and speed of the wheels 9.

By tilting the lever 19 forward. Then, the wheels 9 can be rotated in the forward direction, and by tilting them backward, the wheels 9 can be rotated in the reverse direction.

Furthermore, if the lever 19 is tilted at a small angle both forward and backward, the rotational speed of the wheel 9 will be small, and if it is large, the rotational speed will be high. Also, when the lever 19 is in the upright position, it will be in a neutral state and the wheel will rotate. do not.

Reference numeral 20 denotes a lever for operating the expansion and contraction of the horizontal piston cylinder 4. By tilting the lever 20 forward, the horizontal piston cylinder 4 can be shortened, and by tilting it backward, it can be extended.

Further, similarly to the operation of the lever 19, by adjusting the angle at which the lever 20 is tilted, the speed of expansion and contraction can be controlled.

Further, when the lever 20 is in the upright state, it becomes neutral, and the horizontal piston cylinder 4 stops expanding and contracting.

21 is a changeover switch that reverses the rotation of the hydraulic motor 10 on the left side (the side on which the hydraulic pressure supply device 12 is mounted) and that on the right side (on the side on which the hydraulic control device 16 is mounted).

22 is a lever that operates the expansion and contraction of the horizontal piston cylinder 2 constituting the right frame, and 23 is a lever that operates the expansion and contraction of the left side.

If levers 22 and 23 are both pushed forward, the right and left vertical piston cylinders 2 will be shortened, and if pushed backwards,
Stretch.

Further, when the levers 22 and 23 are in the upright state, they are in neutral, and the expansion and contraction of each vertical piston cylinder 2 is stopped.

Reference numeral 24 denotes a support, the upper end of which is attached to the upper frame 3, and a leaf harvesting device 25 is attached to the support 24.

The support column 24 moves up and down by the expansion and contraction of the vertical piston cylinder 2, and the height of the leaf harvesting device 25 can be adjusted.

Reference numeral 26 denotes a leaf picking rod driven by a crank mechanism (not shown), and the tobacco leaves picked from the tobacco stem by the leaf picking rod 26 are stored in a tobacco leaf storage tank 27 attached to the lower frame 6. Fall.

Note that 28 indicates a tobacco crop.

To explain the operation of the elevated tobacco leaf harvester of the present invention having the above-described configuration, first, in tobacco cultivation, it is necessary to adjust the wheel pressure of the elevated tobacco leaf harvester according to the distance between the rows of the field.

The operation method is as follows: First, operate the bundle 18 to
After setting the direction of travel to 90 degrees, the changeover switch 21 is activated.

Next, while tilting the lever 19 forward or backward,
The lever 20 is also pushed forward or backward, and the horizontal piston cylinder 4 is operated to extend or contract in conjunction with the forward or backward movement of the wheels 9.

As mentioned above, by operating the changeover switch 21,
The wheels 9 on the left and right sides travel in opposite directions, and the wheels 9 either move toward each other or move away from each other.

Accordingly, the horizontal piston cylinder 4 operates to shorten in the former case and expand in the latter case.

This allows the ring pressure of the elevated tobacco harvester to be easily adjusted.

In addition, by providing the levers 19 and 20 adjacent to each other, the levers 19 and 20 can be operated with one hand when the user is in the hospital, and the wheel pressure can be adjusted with one hand.

Furthermore, the traveling speed of the wheels 9 and the horizontal piston cylinder 4
It is also possible to design the levers 19 and 20 so that their speeds match by synchronizing the expansion and contraction speeds and making the angles at which the levers 19 and 20 are tilted the same.

As a result, it is possible to completely eliminate distortion that occurs in the frame 1 and the like when adjusting the wheel pressure.

Moreover, the power required for this can be minimized.

After completing such an operation, if the operation of the changeover switch 21 is stopped, the vehicle returns to the normal state in which the left and right wheels 9 run in the same direction.

This wheel pressure adjustment operation is performed simultaneously with the left and right leaf picking devices 2.
5 intervals will be adjusted.

In the elevated leaf tobacco harvesting machine of the present invention in which wheel pressure is adjusted in this way, when adjusting the height, the lever 22
, 23 to expand and contract the vertical piston cylinder 2,
The height of the horizontal piston cylinder 4 is set at a position that straddles the tobacco crop to be planted, and the leaf picking device 25 is set at the desired height.Tobacco crops mature from the lower leaf level, so usually the height of the lower leaf level is set at the beginning. Attach it to the support post 24 so that it looks like this.

The lever 2 is used to sequentially raise the position of the leaf picking device 25.
This can be easily achieved by extending the vertical piston cylinder 2 by manipulating 2 and 23.

In addition, on a slope, by adjusting the lengths of the left and right vertical piston cylinders 2 according to the inclination angle, the frame body 1 can be kept in a vertical state, and running stability can be ensured.

Setting the frame 1 in a vertical state means positioning the left and right upper frames on the same horizontal plane, and the leaf-picking device 25 attached to the support 24 also lies on the same horizontal plane, so that the leaf-picking position of the tobacco stem is adjusted. There is no difference between the left and right leaf pick harvesting devices 25.

After adjusting the wheel pressure and height of the elevated leaf tobacco harvesting machine of the present invention and the height of the leaf picking device 25, the leaf picking operation is started from the ridge end.

First, when the lever 19 is pushed forward and the tobacco leaf is moved forward, the leaves are removed from the tobacco stem by the leaf removal rod 26 whose tip is rotationally driven, and the tobacco leaves fall into the storage tank 27.

In this manner, when the elevated tobacco harvester reaches the other ridge end, the lever 19 is turned upright to temporarily stop running.

Next, the bundle 18 is steered to fix the traveling direction of the wheels 9 to the left or right by 90 degrees using the swing motor 11, and the lever 19 is moved forward or backward to move to the furrow or other appropriate position for the next work. Then, the lever 19 is placed in the neutral position again to stop the elevated leaf tobacco harvester from moving, and the bundle 18 is steered again so that the wheels 9
Return the direction of travel to 90 degrees, and then turn lever 18.
On the other hand, it is possible to tilt the harvester backwards and run it backwards to enter the furrow and continue harvesting.

Since the elevated leaf tobacco harvesting machine of the present invention can change the ridges as described above, the amount of headland in the field can be reduced and work efficiency can be improved.

As described above, the elevated leaf tobacco harvesting machine of the present invention has the following features:
The wheel pressure can be easily adjusted according to the distance between the ridges.
Changing the ridges does not require any skill, and it is possible to achieve various improvements in work efficiency, such as requiring less headland compared to the length and width of the machine.

In addition to being able to adjust the height at which the leaf harvesting device operates, it is also possible to achieve stable travel, especially when running horizontally on an elevated tobacco harvester on a slope, by changing the lengths of the left and right vertical piston cylinders. At the same time, it is possible to match the operating heights of the left and right leaf picking devices.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the elevated leaf tobacco harvesting machine of the present invention, and FIG. 2 is a side view of the same. 1... Frame body, 2... Vertical piston cylinder, 3... Upper frame, 4... Horizontal piston cylinder, 5... Installation Frame, 6...
Lower frame body, 7...Mounting plate, 8...Wheel mounting frame, 9...Wheel, 10...Hydraulic motor, 11...・Hydraulic swing motor, 12...
...Hydraulic supply device, 13...Engine, 14.
... Hydraulic pump, 15 ... Oil tank, 16.
... Hydraulic control device, 17 ... Driver's cab, 1
8... Bundle, 19, 20... Lever, 21... Changeover switch, 22, 23...
... Lever, 24 ... Prop, 25 ...
...Leaf picking device, 26...Leaf picking stick, 27
・・・・・・Containment tank.

Claims (1)

[Claims] 1. A wheel is attached to the lower part of a pair of left and right height-adjustable frames via a wheel mounting frame, and a hydraulic swing motor connected to a shaft fixed to the upper surface of the wheel mounting frame rotates the running direction of the wheels 90 degrees left and right. The left and right frames are connected by a horizontal piston cylinder whose width can be adjusted freely, and a hydraulic motor is attached to each wheel, and a hydraulic swing motor and hydraulic The motor is driven to rotate in forward and reverse directions, and the height and width of the frame are adjusted by the horizontal piston cylinder.A leaf harvesting device is attached to the left and right frames via supports attached to the lower frame. is an elevated cedar leaf tobacco harvesting machine characterized by a storage tank.