JPH0126192Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Related Technical Field) The present invention relates to a beet harvester. In particular, it relates to a new structure of the beet digging part in a beet harvester.

(Prior Art) Conventional beet harvesters dig up beets, soil, and stones at the same time and separate them using a chain conveyor or sorting drum, but it is impossible to separate the stones and beets. For this reason, it is currently extremely difficult to remove stones and debris when receiving beets or at beet factories.

FIG. 10 shows the pattern of digging by a conventional harvester. As shown in Fig. 11, cut off the top (leaf part) a' with a tapper knife e, remove it with a cleaner f (Fig. 12), and then dig up the beet a along with the stones and mud b. While conveying this by a conveyor and storing it in a tank C, soil and sand c fall to the lower part of the conveyor, and a mixture of stones and beets is stored in the top tank d. The inclusion of this stone was unavoidable.

(Purpose) Completely change the structure of the excavated part of the beet, excavating only the beet and not excavating the stone gravel.
The object of the present invention is to provide an efficient beet harvester that does not require separation work between stones and beets after digging.

(Summary of configuration) A pair of belts having a circular cross section and rotating around the center are placed adjacent to each other, and adjacent parts of the belts move in the same direction and rotate inwardly and in opposite directions. A driven feed conveyor is provided, the tip of the feed conveyor expands into a V shape,
A lifter shoe for digging is installed at the bottom of this conveyor, and a cleaning brush is installed in the middle of the feed conveyor.
Furthermore, a cutter is installed at the bottom of the rear end, and the tops (leaf parts) of the excavated beets are fed and carried by a conveyor, purified on the way to remove soil, and finally the neck is cut to remove stone gravel. This system is characterized by being able to collect only uncontaminated beets.

(Example) Fig. 1 is a side view of the digging part of the beet harvester according to the present invention, and Fig. 2 is a plan view thereof. 1 is a feed conveyor, and when viewed from the side, the leading and trailing ends are horizontal and the middle part is inclined. As shown in FIG. 2, the feed conveyor 1 consists of a pair of left and right endless belts 1a, 1a that rotate in opposite directions and are in contact with each other on the inside. The tip of the feed conveyor 1 opens in a V-shape, and at this portion, the beats are dug up by a lifter shoe 2 and fed onto the feed conveyor 1.

The lifter shoe 2 is attached to a machine frame (not shown), and is attached so that its depth can be adjusted in the vertical direction as indicated by the arrow x in FIG. lifter show 2
consists of a pair of wedge-shaped shoes 2a, 2a on the left and right, which are open in the direction of travel, and are designed to dig up the beat and float it upward.

As shown in FIG. 4, the endless belt 1a has a circular cross section and has four ribs 1b provided on its surface in the longitudinal direction of the belt. A belt having such a cross-sectional shape is rotated while being guided by a guide worm 3, as shown in FIG. 3a is an idler wheel.

The guide worm 3 rotates around the axis 4,
The guide groove 5 is inclined at an angle θ with respect to the shaft 4 (the fifth
As a result, the belt 1a is given a twisting action in the vicinity of the guide worm 3 and is fed while rotating. A pressure roller 6 presses the left and right endless belts so that they are always in contact with each other, and is biased by a spring 7.

Reference numeral 8 denotes a cleaning brush provided approximately at the lower center of the feed belt 1, which is comprised of a pair of left and right brushes 8a, and is driven by a motor 9. Left and right brushes 8
When passing between a and 8a, the soil attached to the bottom of the beet is brushed away.

Reference numeral 10 denotes a pair of rotating cutters provided at the rear end of the feed belt, each of which is driven by a motor 11. This cutter cuts off the tops (leaf parts) of the beets that are held between the feed belts.

Reference numeral 12 denotes an electronic sensor which detects the cutting position of the beet and moves the cutter up and down to improve tapping accuracy.

(Function) The beet harvester equipped with the digging device of the present invention is moved forward. At this time, the feed conveyor 1 is guided by the guide worm 3 and the idler wheel 3a by a power source (not shown) and rotates inwardly.

In FIG. 8, as the beet harvester moves forward, the lifter at the bottom of the tip enters the soil and digs up beets A. The tops (leaf parts) of the excavated beets A are held between a pair of rotating belts on the left and right sides, and are sent to the rear while being suspended. At this time, the belt is rotating while being subjected to rotation in the torsional direction by the guide roller 3.
The pinched part of the beet gradually moves from the leaf to the neck.

At an inclined part in the middle of the feed conveyor 1, the beets A are sandwiched between the cleaning brushes 8, are purified by the action of the brushes, and ascend.

Rotating cutter 1 that rotates when it reaches the upper end
Beat A is tapped by 0. The tapped beets fall into the top tank 13,
be accommodated. When the top tank 13 becomes full, it is moved and stored in another tank.

(Effects) 1. After excavating with a lifter shoe at the tip of the feed belt, the material is sent upward while being suspended by a feed conveyor, and is further purified with a brush, so it is possible to completely prevent stones, mud, etc. from entering.

2 Beet tops (leaves) can be used as feed for livestock as they do not have mud attached to them.

3. Since the rear end of the feed belt is cut off with a cutter, the special tapping work can be omitted.
The beet harvesting process can be done in one process and is efficient.

4. Since there is no contamination with stones, mud, etc., it is possible to significantly save labor in receiving operations, and at the same time, the number of machine failures at receiving factories, etc. is significantly reduced.

5 Furthermore, since there is no contamination with stone mud, it helps prevent harvester failures.

[Brief explanation of the drawing]

Figure 1 is a side view of the digging part of the beet harvester. Figure 2 is also a plan view. Figure 3 is a plan view of the lifter shoe. FIG. 4 is a sectional view of the belt. FIG. 5 is a plan view of the guide worm. FIG. 6 is a plan view of the cleaning brush. FIG. 7 is a plan view of the rotary cutter. FIG. 8 is a side view showing the state when beets are being dug up by a beet harvester. FIG. 9 is also a plan view. FIG. 10 is a side view showing the state of digging by a conventional beet harvester. FIG. 11 also shows a state in which the top of the beet is removed. FIG. 12 shows the cut-out top being cleaned. In the figure: 1... feed conveyor, 1a... endless belt, 1b... rib, 2... lifter shoe, 2a... (wedge-shaped) shoe, 3... guide worm, 4... (guide worm) shaft, 5...
Guide groove (of the guide worm), 6...press roller,
7...Spring, 8...Cleaning brush,
8a... Brush, 9... Motor, 10... Rotating cutter, 11... Motor, 12... Electronic sensor,
13...Top tank.

Claims (1)

[Scope of utility model registration request] A pair of belts 1a, 1a having a circular cross section and rotating around the center thereof are adjacent to each other, and adjacent parts of the belts are driven in such a manner that they move in the same direction and rotate inwardly and in opposite directions. The forward end of the conveyor is expanded into a V-shape, and a lifter shoe for digging is installed at the bottom of the conveyor, a cleaning brush is installed at the middle of the conveyor, and a cutter is installed at the bottom of the rear end. A beet harvester for use in gravel areas, which is characterized by the following: