JPH0458810A - transplant machine - Google Patents

Abstract

PURPOSE:To reduce a difference between plants on the ascending and descending sides in places between mountains by especially installing a main interrow speed change and changeover device and an auxiliary interrow speed change and change device in a transmission system where the operation speed of a transplanter is proportional interlocking with regulation of the travel speed. CONSTITUTION:The operation speed of a transplanting tool 4 for the travel speed is set with a changeover lever 52 of a main interrow speed change and changeover device. In transplanting operation in an ascending step in places between mountains, operation is performed with an operation lever 51 of an auxiliary interrow speed change and changeover device to enlarge the interrow spacing. Thereby, the interrow spacing due to slip of travel wheels 8 and 8 is prevented from extending. In the descending operation step, the interrow spacing is set so as to reduce by the operation lever 51.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates to a device for switching between transplanted plants in a vegetable transplanting machine used on sloped areas and the like.

BACKGROUND TECHNOLOGY Conventionally, vegetable transplanters equipped with a plant-to-plant switching device for switching between plants have been well known, but no plant transplanter has ever been equipped with a plurality of plant-to-plant switching devices.

Problems to be Solved by the Invention In the prior art, there have been methods in which the distance between transplants is changed to 12 centimeters, 15 centimeters, 18 centimeters, etc. in the direction of propagation.

Since there was no separate plant spacing adjustment device that increases or decreases the selected plant spacing by a predetermined amount, when transplanting to an uphill area such as in a mountainous area, wheel slip increases and the plant spacing decreases.
On the other hand, when transplanting on the downhill side, wheel slippage is eliminated and the spacing between plants increases.

Means for Solving the Problems In order to solve the drawbacks of the prior art, the present invention provides a transplanting device for planting seedlings or seeds at predetermined intervals in the direction of travel, in which the operation of the transplanting device is linked to adjustment of the traveling speed. In a transmission system whose speed is directly proportional, a main stock transmission switching device 36 and a sub stock transmission switching device 30 are specially provided to change the rotational ratio of power transmission on the transplant device side to the power transmission rotation speed on the traveling device side. This device is used to switch between transplanted plants in a vegetable transplanter.

Effects and Effects of the Invention According to the present invention, in mountainous areas where transplanting work is carried out uphill and downhill, the main plant speed changeover device is used to adjust the distance between plants in order to perform transplanting work between pre-selected plants. When transplanting, the sub-plant speed switching device is switched to increase the distance between plants, and when transplanting downhill, the sub-plant speed switching device is switched to reduce the distance between plants. It is possible to prevent the distance between the plants from changing significantly between the process and the downward transplant process.

That is, according to the present invention, it is possible to reduce the difference between the transplanted plants on the climbing side and the transplanted plants on the bird side in mountainous areas.

Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a frame, a double rotating case with a transmission case 3 directly connected to an engine 2 attached to the front and a mounting fixture 4 at the rear. A transplanted transmission case 7 is attached to which the parts 5 and 6 are attached.

Reference numeral 8 denotes running wheels, which are mounted on the outer side of the tip side of a chino case 9°9 rotatably mounted on both the left and right sides of the transmission case 3, and this chino case is configured to be raised and lowered by a hydraulic device 10. has been done.

Reference numeral 11 denotes a transfer wheel, which is attached to the rear of the traveling wheel 8 and is movable up and down from the frame side via an arm.
It is interlocked with the hydraulic system 10 so as to move up and down following the traveling Tp, Jt of l118, and lowering.

12 is a seedling stand arranged on the frame.

It is supported by the frame 1 so as to be reciprocated in the left and right direction. And, it is connected to the left and right reciprocating machine 13 provided near the base on the side of the transplanted transmission case 7.

Reference numeral 14 denotes a detection body for detecting the height of the ridge A, which is connected to the control valve 15 of the hydraulic system 10, and automatically controls the running wheels 8 and the rolling wheels 11 according to the height of the ridge A. It is configured so that it can be moved up and down.

Reference numeral 16 denotes a control handle, the base of which is attached to the transplanted transmission case 7, and is attached to the near part of the control frame extending rearward and upper.

Reference numeral 18 indicates a holding ring for holding down the transplantation position.

To explain the power transmission in the transplant machine configured as described above, the shaft 22 driven by the engine 2 via the centrifugal clutch mechanism 21 drives the worm gear 23 via a set of reduction gears, and the worm gear The worm wheel gear 24 that meshes with the worm wheel gear 23 is installed by providing a latch 27 that runs between the cylindrical shaft 25 and a traveling drive shaft 26 that passes through the cylindrical shaft and extends from side to side. It is configured to be driven.

On the other hand, transmission is made from the cylindrical shaft 25 to an intermediate shaft 28 via a set of speed-increasing gears, and a sub-plant pot speed switching device is provided between this intermediate shaft 28 and a transplant side drive shaft 29 that transmits power on the transplant side. 30
is interposed. That is, the fatigue speed switching device 30 between sub-stocks is provided with a large diameter gear 31 and a small diameter gear 32 fixed to the intermediate shaft 28,
A small diameter gear 33 and a large diameter gear 34, which can be operated in the axial direction by a shifter 35, are attached to the transplant side drive shaft 29 so as to selectively mesh with the large and small diameter gears 31 and 32.

Reference numeral 36 denotes a main shaft transmission switching device, and this input cylinder shaft 37 has a structure in which it is driven from the transplant side drive shaft 29 via sprockets 38, 39 and a chino 40. An output shaft 44 is provided with a small diameter gear 42 and a large diameter gear 43, and drives the seedling stand 12 and the transplanting tool side.
A large-diameter gear 45. is selectively engaged with the small and large gears 42, 43 by the shifter 41. A small diameter gear 46 is loosely fitted so as to be rotatable, and a clutch 47 is provided between the large diameter gear 45 and the output shaft 44. Further, a set of transmission gears is provided between a shaft 48 penetrating the cylindrical shaft 37 and the output shaft 44, and this shaft 48 is connected to a vertical seedling feeder attached to the bottom surface of the seedling stand 12. A cam mechanism is provided that drives the belt when the seedling stand moves to the left and right lateral ends.

49 is a sprocket that drives the left and right reciprocating mechanism 13 of the seedling platform 12, and 50 is a sprocket that drives the seedling transplanting device side.

Reference numeral 51 denotes a switching lever linked to the shifter 35 of the sub-stock transmission switching device 30 via a wire, and is located near the operating position so that it can be easily switched during work.

Reference numeral 52 indicates a switching lever of the main stock transmission switching device 36.

To explain the action on the upper side, the left and right running wheels 8, 8
The rolling wheels 11, 11 are propelled across the ridge A, and the hydraulic bag W is set so that the detection body 14 is grounded on the upper ui of the ridge A.
io by operating the hydraulic control lever 53 at hand to set the traveling axle 8.
Then, the rolling heavy wheels 11 are raised and the aircraft is lowered. and,
When the detection body 14 reaches an appropriate ground pressure, the descent of the aircraft body is automatically stopped.

In this state, the seedlings are loaded on the seedling platform 12, and while the machine is being propelled, the transplanting section side is operated by the transplanting clutch operating lever 54 to transmit the power, and the transplanting work is carried out. In other words, the transplant A4 moves upward in a large elliptical motion. Then, the seedlings are divided from the seedling stand 12 and transplanted onto the ridges A one after another.

At this time, since the transplant distance Q is determined by the operating speed of the transplant tool 4 with respect to the traveling droplet σ, it is determined by operating the switching lever 52 of the main plant inter-plant transmission switching device 36.

In the case of the embodiment, the operating lever 51 of the sub-plant inter-plant transmission switching device 30 is set to the side where the common plant spacing becomes narrower, that is, so that the gears 31 and 33 mesh and the rotational operation of the implant 4 side becomes faster. .

When transplanting in the uphill direction and then turning back to transplant in the downhill direction in a mountainous area, the sub-plant speed switching device i! Operate the control lever 51 of f30 to increase the distance between gears 32 and 3.
Match 4. Then, during the climbing process, the traveling wheels 8.
Since the slip of No. 8 becomes larger, the distance between the plants does not actually widen or fluctuate, and even though it is an uphill process, the distance between the plants does not decrease and the transplant is completed with the distance between the plants close to the desired one. Furthermore, when turning back and moving forward, it is preferable to operate the operating lever 51 to engage the gears 31 and 33 so as to reduce the distance between plants.

In the embodiment, an operating lever 51 is provided so that the sub-stump speed switching device 30 can be switched with one hand, but if the switch is forgotten even when near the hand, the stump may change between the ascending work stroke and the descending work stroke. It is a natural consequence that there will be a big impact.

In order to eliminate such inconveniences, it can be prevented by interlocking the switching tool of the sub-plant crease speed switching device 30 with the operating tool or operating lever that always needs to be operated when turning back.

For example, the hydraulic operating lever 53 is used to raise and turn the transplanting machine whenever it reaches the end of transplanting the ridge A, and then to lower the machine.

Therefore, as in the embodiment shown in FIGS. 3 and 4, the switching shifter 35 of the sub-stock transmission switching device 30 is configured to be switched by a solenoid 55, and the switching switch 5G for exciting and opening the solenoid 55 is operated by hydraulic pressure. The configuration is such that the changeover switch 56 is turned on by a two-step operation of the hydraulic operation lever S3.In other words, the hydraulic operation lever 53 is turned on when the hydraulic operation lever 53 is in the ported state. '' to ``raise'' and the switch 56 is turned ``off'' in the first step of ``doge'' in the transplanted state again, and the switch 56 becomes ``human'' in the first step of the first stage.

Reference numeral 57 indicates a battery, and 59.60 indicates a lamp for indicating climbing work and descending work.

Furthermore, when automating the switching, a switch 56 that controls the solenoid 55 is used as shown in FIGS. 5 and 6.
A may be switched by a pendulum sensor 61, which is an example of a tilt detector, so that the distance between plants is increased during ascending transplant work, and the distance between plants is reduced during descending transplant work.

Transplanting work does not necessarily mean transplanting to ridge A;
Transplanting is often carried out in flat fields, and in such cases, the transplanter is able to place reinforcements on the field to use as a guide for the course of the turning process in order to ensure accurate row spacing during the next turning process. It becomes necessary.

In this case, markers are attached to the body of the transplanter for the reinforcement, but for vegetable transplanters, markers are attached to the body of the transplanter. In many cases, the distance between the rows is changed due to category 1, and therefore the wheel spacing of the traveling axle 8.8 has to be changed. At this time, if the marker is simply attached to the fuselage, it is necessary to adjust the distance between the cars and the length of the marker to the south, and the marker WJRWI must be adjusted accurately according to the wheel spacing. The operation is extremely m1 example. In such a case, as shown in FIG. 7, it would be extremely convenient to adopt a configuration in which wheel spacing adjustment and marker adjustment can be performed simultaneously.

To explain the configuration of FIG. 7, the chain case 9a,
The base side of the spline shaft 62 is rotatably and loosely fitted to the spline shaft 62, and the internal sprocket is engaged with the spline and rotates integrally with the shaft 62. Then, the transmission case 3 side and the spline rotating shaft 62
A threaded cylinder 67 for connecting and screwing together the right threaded shaft 65 and the left threaded shaft 66 is provided between the arm 64 protruding from the metal 63 fitted to the integral shaft 62a on the tip side of the turnbuckle structure. None, the threaded tube 67 of this turnbuckle is configured to engage the chain cases 9a, 9b. A set of bevel gears is provided between this threaded cylinder 67 and a shaft 69 which is supported by a bracket fixed to the chain cases 9a and 9b and rotated by a lever 68. The chain cases 9a and 9b are moved inward or outward due to the relationship between the threaded shaft 65 and the threaded tube 67, but on the other hand, due to the threaded engagement between the threaded tube 67 and the left threaded shaft 66, the threaded tube 67 is moved at the same time. Since the threaded cylinder 67 is rotated, the left threaded shaft 66 is also rotated by the chain cases 9a, 9.
Since the left screw shaft 66 is moved in the same direction as the moving direction of b, the left screw shaft 66 is moved twice as much.

Therefore, if the marker 7o is attached to this left screw shaft 66, the marker 7o will be automatically set when the wheel interval '1' is changed.
This means that the position of action will be marked at a position that corresponds to the changed graft strip.

71 presses the up/down operation lever of the marker 70 by 7.

Reference numeral 72 denotes a lever fixed to a metal 73 rotatably pivoted to a case portion enclosing the fitting shaft 62 of the mission case 3. This lever is linked to the hydraulic system 10, and the flange fixed to the metal 73 is fixed to the lever 72. A right screw shaft 65 is fixed to the vehicle, and the axle is moved up and down through this.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a transmission pattern diagram, Fig. 3 is a diagram of a separate switching control mechanism, and Fig. 4 is a side view of the main parts. 5 is a diagram of a separate switching control mechanism, FIG. 6 is a side view of the main part, and FIG. 7 is a partially sectional rear view of the main part on the separate actual flow side. In the figure, symbol 30 indicates a sub-share speed changeover device, and numeral 36 indicates a main-share speed changeover device.

Claims (1)

[Claims] In a transplanting device that plants seedlings or seeds at predetermined intervals in the traveling direction, the operating speed of the transplanting device is directly proportional to the adjustment of the traveling speed. This device for changing between transplanted plants of a vegetable transplanter is specially provided with a main plant speed change device 36 and a sub plant speed change device 30 for changing the rotation ratio of power transmission.