JPH0144016Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an excavator for digging up and harvesting crops such as underground tubers.

(Prior art) Conventionally, as shown in Japanese Utility Model Application Publication No. 55-86422, an excavator has an excavator that excavates the harvested material, and a conveyor that shakes off the soil while conveying the harvested material is connected to the excavating body. death,
This conveyor has an endless rotating body suspended between driving wheels and driven wheels arranged on both the front and rear sides, in which a large number of horizontal rods are arranged in parallel at predetermined intervals between opposing endless chains, Further, a cam-shaped guide roller is provided between the driving wheel and the driven wheel to support an ascending side of the endless chain of the endless rotating body midway.

As the machine moves forward, the harvested material is dug up by the digging body, and the harvested material is carried from the digging body onto a conveyor, and the soil is shaken off by this conveyor. The soil is conveyed rearward and vibrated by a cam-shaped guide roller to the endless rotating body of the conveyor to further shake off the soil.

[Problem that the invention attempts to solve]

In the conventional excavator mentioned above, simply providing a cam-shaped guide roller to the endless rotating body of the conveyor does not ensure that the endless rotating body vibrates.
The cam-shaped guide roller must be rotationally driven, and a driving means for that purpose is required.

In addition, when the guide roller has an arcuate cam shape, the vibration of the endless rotating body becomes a regular wave-like up and down movement, and the soil attached to the harvested product and relatively large clods are not shaken off, and the harvested product is not shaken off. Therefore, the action of shaking off the soil is insufficient, and in such cases, the post-work is labor-intensive.

The present invention was developed in view of the above points, and by applying instantaneous up-and-down vibration to the endless rotating body of the conveyor during its rotation,
The impact causes not only soil that adheres to the crops, but also
The purpose of this is to crush soil clods so that soil can be easily and reliably shaken off from harvested crops.

[Structure of the idea]

(Means for Solving the Problems) The present invention has a conveyor that shakes off the soil while conveying the harvested material, and is connected to the excavation body that excavates the harvested material.This conveyor is installed on both the front and rear sides. An endless rotating body comprising a number of horizontal rods arranged in parallel at predetermined intervals between opposing endless chains is suspended between the driving wheel and the driven wheel, and the driving wheel and the driven wheel are In an excavator that is provided with guide rollers that support the ascending side of the endless chain of the endless rotating body midway therebetween, the guide rollers are engaged with and guided by the guide rollers on both sides of the endless rotating body in the width direction. A vibrating projecting body is provided, and this vibrating projecting body rides on the guide roller to push up the endless rotating body, and momentarily lowers the pushed up endless rotating body by passing the guide roller. It was formed in

(Function) In the present invention, when the excavating body excavates the harvested material and the conveyor transports the excavated harvested material backwards while shaking off the soil, the vibrating protrusion of the endless rotating body is moved by the guide roller. When the vibrating protrusion passes through the guide roller, the endless rotating body is pushed up, and the pushed-up endless rotating body momentarily descends. The soil adhering to the harvest is thus separated and removed, the clods are crushed, and the soil is shaken out from between the crossbars and discharged.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In Fig. 1, reference numeral 1 indicates an excavator, and this excavator 1 has side frames 2 as machine frames facing each other, and an excavator as an excavator between the front ends of the side frames 2 on both sides. A tip 3 is integrally attached to the front and downward at a predetermined angle, and a sieving frame 5 in which a plurality of vertical bars 4 are arranged side by side at a predetermined interval is connected to the rear end of the tip 3. A conveyor 6 is connected to the rear end of the sieving frame 5. This conveyor 6 has a large number of horizontal rods 10 arranged at predetermined intervals between driving wheels 7 and driven wheels 8 disposed at the front and rear inside of the side frames 2 on both sides, and between opposing endless chains 9. An endless chain 11 of the endless rotating body 11 is suspended so as to be freely rotatable, and an endless chain of the endless rotating body 11 is mounted on the side frames 2 on both sides between the driving wheel 7 and the driven wheel 8. A guide roller 12 that supports the ascending side of the support shaft 1
3 and is rotatably mounted on an axis.

Furthermore, vibrating protrusions 14 that are engaged with and guided by the guide rollers 12 are protruded at predetermined positions on both sides of the endless rotating body 11 in the width direction. The vibrating protrusion 14 is formed in a shape that rides on the guide roller 12 to push up the endless rotating body 11, and momentarily lowers the pushed up endless rotating body 11 by passing the guide roller 12. ing.

For example, as shown in FIGS. 2 and 3, the vibrating protrusion 14 is formed integrally with the lower side of the link plate 15 at a predetermined position and protrudes in a substantially triangular shape. . In addition, as shown in FIG. It may be removably attached to the reinforcing plate 16 attached between the outer ends of the plates 10 and 10 with bolts 17 and nuts 18, and as shown in FIG. Vibrating body 1 depending on the shape
4 is arranged on the lower surface of the endless rotating body 11 between near the outer ends of a pair of horizontal bars 10 at predetermined positions, and a clamping plate 19 placed on the upper surface of the pair of horizontal bars 10 is provided with vibrations. The projecting body 14 may be fastened and locked by a bolt 20, and as shown in FIG. The vibrating protrusion 14 made of a roller body may be attached by a pin 21. The various vibrating bodies 14 are arranged on both sides of the endless rotating body 11 at opposite positions in the width direction, or as shown in FIG. do.

Further, as shown in FIG. 1, a discharge sieving frame 22 and swinging forks 23 that are located on both sides of the discharge sieving frame 22 and swing up and down are attached to the rear end of the conveyor 6. , Grounding bodies 24 are attached to the side frames 2 on both sides so as to be height adjustable. In FIG. 1, 25 is a connecting frame connected to a towing vehicle such as a tractor, and 26 is the conveyor 6.
This is a drive mechanism that is interlocked and connected to a power source that rotationally drives the drive wheels 7.

In the above configuration, the frame 2 connected to the tractor
At the same time, the drive mechanism 26 is operatively connected to the power source of the tractor. Then, when the excavator 1 is towed by a tractor and the endless rotating body 11 of the conveyor 6 is rotated in conjunction with the power from the tractor, the harvested material is dug up with a deposit of 3, and this harvested material is It is carried through the sifting frame 5 to the endless rotating body 11 of the conveyor 6, and this endless rotating body 11
The soil is shaken down from between the horizontal rods 10 and conveyed rearward, and is further shaken and discharged rearward by the discharge sieving frame 22.

At this time, when the vibrating protrusion 14 of the endless rotating body 11 rides on the guide roller 14, the endless rotating body 11 is bent and pushed up at the connecting portion of the link plate 15, and this vibrating protruding body 14 is guided After passing through the rollers 12, the pushed-up endless rotating body 11 bends over its bent link plate 15.
The soil adhering to the crops is separated and removed by the impact of the upward and downward movement, and the soil clods are crushed, and the soil is shaken out from between the transverse rods 10. It is dropped and discharged.

[Effect of idea]

According to the present invention, during the rotation of the endless rotating body of the conveyor, the vibrating protrusions on both sides engage and disengage from the guide rollers, thereby imparting instantaneous vertical vibration to the endless rotating body. At the same time, the impact caused by the vertical movement can reliably separate and remove the soil adhering to the harvest during transportation, and the soil clods are crushed and finely divided, so that the harvest is fine. The soil can be shaken off easily and reliably, and since it is only necessary to provide the vibrating protrusion on the endless rotating body, there is no need for a separate driving means to vibrate the endless rotating body. The structure is simple, and by selecting the shape and mounting position of the vibrating body, various vibration states can be easily obtained, and it can easily be adapted to the soil quality.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Figure 1 is a perspective view of an excavator, Figure 2 is a side view showing the relationship between the guide roller and the vibrating body, and Figure 3 is the vibrating body. The enlarged side views of FIGS. 4 to 6 show different embodiments of the vibrating protrusion, in which A is a partial plan view, B is a sectional view taken along line a-a, and FIG. 7 is a vibrating protrusion. FIG. 3 is a plan view showing an example of body arrangement. 1... Excavation machine, 3... Excavation body, 6... Conveyor, 7... Drive wheel, 8... Driven wheel, 9... Endless chain, 10... Horizontal rod, 11... Endless rotating body , 12
... Guide roller, 14 ... Vibrating body.

Claims (1)

[Scope of Claim for Utility Model Registration] An excavator that excavates the harvest is connected with a conveyor that shakes off the soil while conveying the harvest. An endless rotating body having a large number of horizontal rods arranged in parallel at predetermined intervals is suspended between opposing endless chains, and the endless rotating body is suspended between the driving wheel and the driven wheel. In an excavator equipped with guide rollers that support the ascending side of an endless chain in the middle, vibrating protrusions are provided protruding from both sides of the endless rotating body in the width direction to be engaged and guided by the guide rollers. The vibrating body is characterized in that it is formed in a shape that rides on the guide roller and pushes up the endless rotating body, and momentarily lowers the pushed up endless rotating body by passing the guide roller. excavator.