JPH0342041B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a harvester for bulbous vegetables such as carrots.

As this type of harvester, the invention disclosed in Japanese Patent Application Laid-open No. 126710/1983 is known. The invention involves sandwiching the leaves and stems of crops between two belts while the machine is running.
The idea is to use the inclination of the belt to pull the leaves out of the ground and transport them backwards, cutting the leaves and stems along the way, allowing the roots to fall, and then discharging the leaves from the end of the conveyor belt.

The present invention is a harvester based on such a concept, with improved means for aligning the cutting length positions of the leaves and stems from the roots, and is constructed as set forth in the claims.

To explain the embodiment shown in the drawings, Fig. 1 shows a plan view of the main part, and shows two belts 1, 1 on the left and right that are inclined upward at the rear, with their facing surfaces 1a, 1b approximately in the same position. It is suspended endlessly on the machine frame 2, and the contact surface 1 is suspended by the engine E mounted on the machine frame.
a, 1b move diagonally upward from below while moving forward by rotating the endless crawler belt 4 or wheels by power or walking. The height above the ground of the lower end of the conveyor belts 1, 1 is determined by the gauge wheel 6, and the belt 1,
A plate-shaped cutter 7 arranged in front of the vegetable root part V is inserted into the soil on the side of the root part V of the vegetable to swell and soften the soil around the root part.

After that, the front lower ends of the conveyor belts 1, 1 come and sandwich the vegetable leaves and stems V ₁ A, pull them out by the upward slope of the belt and convey them rearward and upwardly as shown in Fig. 2. The leaf stem _V1 is cut by a pair of rotary blades 8, 8 a little before the upper end turning point.

In order to align the cutting position at a constant position from the root V, the present invention provides an endless rotating body 9 for aligning the upper surface of the root below the belts 1, 1 in front of the rotary blades 8, 8.
9 pairs are provided. The front lower part of the endless rotary bodies 9, 9 is at a height h1 such that the leaf stem _V1 comes into contact with the upper surface of the root V held by the conveyor belts 1, 1, and the rear upper part is at a height position h2. is lowered, and the rotary blades 8, 8 are arranged slightly above the position h2.

The above-mentioned endless rotating body 9 is constructed by attaching a presser plate 12 to one link 10 ₁ or adjacent link pins 10 ₂ , 10 ₂ of a chain 10, as shown in FIGS. The presser plate 1 provided
2 and 12 are arranged flat to form a leaf-stem passage 13. Or, as shown in Fig. 5, a slightly hard rubber belt 14
For example, the holding plate 141 is integrally formed with the holding plate ₁₄₁ .
The conveyor belts 1, 1 are rubber protrusions 1 used for conveying grain rods in various conventional harvesting machines, as shown in Fig. 6.
It is a belt with c.

Since the present invention has the above-described configuration, when the upper surface of the root V which moves rearward and upward with the leaf stem V ₁ held between the inclined conveyor belts 1 and 1 reaches the position of the endless rotating body 9, it is guided to the guide plate 30. The root portion V is placed under the holding plate 12 and is pressed and guided by the holding plate 12, so that the upper surface height position of the root portion V is aligned. Since the rotary blade 8 is disposed at the rear upper part of the endless rotating body 9, the leaf stem _V1 is cut at a certain length position above the root portion V.

Therefore, due to the uneven growth height on the ground, the conveyor belt 1
The root V is suspended vertically and upwardly.
In this case, the leaves and stems _V1 are cut off while being aligned at a constant height using the plate 12 of the endless rotating body 9.

The roots V from which the leaves and stems have been removed fall and are stored in a box 15 provided below the rotary blade 8. At that time, a rubber drip 16 is appropriately provided so that the falling root part V does not hit the wall surface of the box 15 and be damaged.

The leaves and stems are further transported rearward by the conveyor belts 1, 1, and when the rear ends are separated, the leaves and stems are turned in the right angle direction by the guide plate 17, and sent out to the endless belt for removal 18 having the feed claws 18a, and are scattered on the ground.

The conveyor belt 1 consists of pulleys 2 provided at the upper and lower ends of a frame rod 19 placed between both sides of the belt as shown in FIG.
0,20, and its frame rod 19 is attached to the main body base frame 3.
Supported by Tension rollers 22 are attached to the swinging arms 21 bearing on the frame rods 19, and are arranged in a staggered manner on the opposing leaf and stalk clamping surfaces of the belts 1, 1, as shown in FIG. 23 is a tension spring.

By arranging them in a staggered manner in this way, in the conventional configuration in which tensions are provided facing each other at the same location, when a leaf stem is caught at that roller position, the distance between the belts 1, 1 between the front and rear rollers is also widened. This eliminates the drawback that objects caught in it may fall.

The power transmission system extends from, for example, an engine output shaft 22 to a crawler 4 via a belt 23 and a transmission shaft 24 . From the middle, the belt 25 rotates the counter shaft 2.
6. Vertical shaft 29 via belt 27 and bevel gear mechanism 28
The power is transmitted to the belts 1, 18, the cutter 8, and the endless rotary body 9. 31 is a hydraulic mechanism for adjusting the height of the gauge wheel 6.

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of the harvesting machine of the present invention;
The figure is a side view, FIG. 3 is a plan view of the endless rotary body for aligning the upper surface of the root, FIG. 4 is an enlarged perspective view of a part of it, and FIG.
The figure is a cross-sectional view of another embodiment, FIG. 6 is a cross-sectional view of a conveyor belt, and FIG. 7 is a layout diagram of a tension pulley. 1 is a conveyor belt, 10 and 14 are endless rotating bodies for aligning the upper surface of the root, 12 and 141 are holding plates, and 8 is a cutter.

Claims (1)

[Claims] 1 A pair of endless conveyor belts that rotate upward at a rearward angle grip the leaves and stems of bulbous vegetables, pull them out of the ground, and transport them rearward and upwardly. A body is installed below the conveyor belt, and its holding plate presses the upper surface of the root to keep its height constant, and a cutting blade placed at the rear end of the endless rotating body cuts the leaves and stems from above the bulb. , a harvester configured so that the roots fall downward.