JPH08308347A - Root crop harvester - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a root vegetable harvester in which the amount of harvest per unit area of a field is not limited by the structure of the root vegetable harvester. [Structure] A pair of excavation pinching belts 10 that rotate in opposite directions are provided to directly clamp the root part to the front part of the root vegetable harvester and excavate the crop. Grasp the root vegetables that are placed at an angle to the ground or in a horizontal position with respect to the ground and pull out and transport. When the sandwiching belts 10 of the pair of excavating sandwiching belts 10 are arranged in the same direction with respect to the ground and inclined at substantially the same angle, the pair of excavating sandwiching belts 10 are arranged in a horizontal position parallel to the ground. Compared to the root vegetable harvesting machine provided with 10, the width of the planting strip of the adjacent root vegetable can be narrowed, so that the yield per unit area of the field can be increased. Also, since the gripping power of root vegetables increases,
It is effective when the soil is hard or the root vegetables are large, as it produces a large pulling force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a root vegetable harvesting machine for carrots and the like having good workability.

[0002]

2. Description of the Related Art A conventional root vegetable harvesting machine is known to pull out from the ground by gripping a soil root portion or a foliage portion on the ground with a sandwiching belt consisting of a pair of endless belts rotating in opposite directions. Has been.

[0003]

In the above-mentioned conventional root vegetable harvesting machine, since the root portion of the root vegetable in the soil or the foliage portion on the ground is gripped by the sandwiching belt consisting of a pair of endless belts rotating in opposite directions, the root vegetable There was a risk of damage due to the gripping pressure of the clamping belt. In addition, the harvested root vegetables were cut while the leaves were hanging in a vertical direction with a root vegetable harvester, which made the cutting operation unstable and the cutting positions varied. Further, when the excavated root vegetables are sandwiched and conveyed by the sandwich belts, the width of the planting strip of each root vegetable cannot be made smaller than the width of the pair of sandwich belts. Therefore, the yield per unit area of the field was sometimes limited by the structure of the root vegetable harvester. The object of the present invention is not limited by the structure of the root crop harvester, the amount of harvest per unit area of the field,
It is to provide a root crop harvester.

[0004]

The above object of the present invention is, in a root vegetable harvester for gripping and pulling root vegetables and transporting them while pulling them out, directly sandwiching the root portions to the front part of the machine body and digging the crops in mutually opposite directions. A pair of rotating endless belt-like excavation holding belts are provided, and each pair of excavation holding belts is arranged so as to be inclined with respect to the ground in the vehicle width direction of the harvester or horizontal to the ground. This can be achieved with a root vegetable harvester, which is characterized by arranging in different stages.

A plurality of pairs of excavating and sandwiching belts may be provided or a single group may be provided. A pair of excavation holding belts consisting of a single set or each pair of excavation holding belts consisting of a plurality of sets may be configured to have a V shape when viewed from the front direction of the root vegetable harvester. it can. When a plurality of pairs of excavation sandwiching belts are provided, the inclination angles of the pair of excavation sandwiching belts of each pair with respect to the ground should be configured to be substantially the same in the same direction, or The excavation holding belt can be configured in a V shape when viewed from the front direction of the root crop harvester. The present invention is applicable not only to carrots but also to harvesting root vegetables (or “root vegetables”) such as radish and turnip.

[0006]

According to the present invention, since each of the pair of excavation sandwiching belts formed by a plurality of sets is disposed so as to be inclined in the vehicle width direction with respect to the ground, each excavation sandwiching belt is provided. Are arranged in the same direction at almost the same angle, the width of adjacent root crops is wider than that of a root crop harvester equipped with a pair of digging and sandwiching belts in a horizontal position parallel to the ground. Since it can be narrowed, the yield per unit area of the field can be increased.

Since the pair of excavation pinching belts formed of a single set or each pair of the excavation pinch belts formed of a plurality of sets are inclined with respect to the ground, Since the gripping force increases, a large pulling force is generated, which is effective when the soil is hard or the root vegetables are large.

[0008]

An embodiment of the present invention will be described with reference to the drawings.
However, the present invention is not limited by the examples below. FIG. 1 shows a side view of the root vegetable harvesting machine of this embodiment, and FIG. 2 shows a plan view seen from above. The root crop harvester includes an endless belt type wheel 1, a vehicle body 3 supported by an axle 2 of the wheel 1, an engine 4 supported by the vehicle body 3, a driving section 5, a root vegetable excavation section 6, and the excavation section. 6, a root vegetable front transport section 7, a rear transport section 8, and a storage section 9 provided behind the transport section 8 for storing harvested root vegetables.

The digging up portion 6 is a digging and sandwiching belt 10 composed of a pair of endless belts that rotate in opposite directions at a predetermined interval.
An example in which three sets are provided is shown in FIG. Further, FIG. 3 shows a view as seen from the line AA of FIG. Two sets of the excavation pinching belts 1 out of the three sets of the excavation pinch belts 1
As shown in FIGS. 1 and 3, 0 is arranged in a position on the same plane, and the third excavating and sandwiching belt 10 is provided above and further in a stepped manner. Therefore, compared with the conventional harvesting machine provided with the three sets of the excavating and sandwiching belts 10 adjacent to each other, three rows can be harvested at one time even if the interval between the root row planting rows is narrowed. Even if the three pairs of excavating and sandwiching belts 10 are arranged in such a manner, it is not necessary to downsize each pair of excavating and sandwiching belts 10, so that it is not necessary to sacrifice the durability thereof.

FIG. 3 shows a configuration diagram of the drive portion of the three sets of the excavating and pinching belt 10 of the harvester of this embodiment, and FIG.
The details of the drive mechanism including the gear and the chain of the drive shaft of the pair of excavating and pinching belts 10 will be described. Power from the engine 4 is converted by a bevel gear (not shown) in the case 15 via a plurality of pulleys 12 and a belt 13 to drive a shaft (not shown) in the case 16. The power of the shaft 17 in the case 16 is converted by a bevel gear (not shown) in the case 18 to drive the shaft 21 in the case 18. The power of the shaft 21 is converted by a bevel gear (not shown) in the case 22, drives the shaft 23, and drives the cutter 25 (see FIG. 1) and the rear transport unit 8. The other end of the shaft 23 is converted by a bevel gear (not shown) in the case 26 to drive the shaft 28 (see FIG. 1) and rotate the belt 10 via the pulley 29.

Further, in FIG. 5, three pairs of excavating and sandwiching belts 10 are arranged so as to be inclined in the same direction in the vehicle width direction of the harvester with respect to the ground at substantially the same angle. An example is shown in which the distance between the pair of excavation sandwiching belts 10 is made narrower than in the case of FIG. 6 in which the belts 10 are provided so as to be parallel to the ground. 5 and 6, the belt 10 and the pulley 29 are sectional views. The rotating shafts 31 of the pair of excavation sandwiching belts 10 of each set are interlocked with each other by the connecting gear member 30. Here, a perpendicular line from the contact point (root vegetable sandwiching portion) of the pair of excavation sandwiching belts 10 and a perpendicular line passing through the end portions of the pair of excavation sandwiching belts 10 adjacent to the pair of excavation sandwiching belts 10 The distance B must be larger than the distance A between the vertical line from the contact point (root vegetable sandwiching part) of the pair of excavation sandwiching belts 10 and the vertical line from the thickest part of the root vegetable.

Since the belt 10 in the case of the embodiment shown in FIG. 5 is inclined at an angle θ in the vehicle width direction with respect to the horizontal, the gripping force of the root vegetables is increased, so that a large pulling force is generated and soil is removed. It is effective for hard and large root vegetables. Even if the digging holding belt structure shown in FIG. 5 has a multi-row structure, the pitch l between the belts 10 has a structure in which the digging holding belt 10 is arranged parallel to the ground shown in FIG. However, it is smaller than the pitch L between the belts.

Further, in FIG. 7, each pair of excavating sandwiching belts 10 is provided at an angle of θ ′ so that the excavating sandwiching belts 10 are formed in a V shape when viewed from the front of the root vegetable harvester. Shows a case where the interval is narrower than the case where the belt 10 is provided so as to be parallel to the ground. In this case, the contact portions of the pair of digging and sandwiching belts 10 are pressed against each other by the force that resists the pulling force of the root vegetables to the belt 10. Since they are in contact with each other in a letter shape, they try to hold the belts on the other side in a fixed position. This fixed position holding force causes the pair of excavation holding belts 10 to hold.

Further, as shown in FIG. 8, a cam mechanism 34, in which a pulley 29 for rotating the pair of excavating and sandwiching belts 10 is eccentric, is connected via a U-shaped support member 35, and the cam mechanism 34 is When the holding belt 10 is vibrated in the front-back direction of the root vegetable harvester by driving, the root portion of the crop is easily pulled out by giving a fine front-back vibration to the foliage of the root vegetable sandwiched by the holding belt 10. In addition, in FIG.
The soila 36 on the lower side also has an eccentric cam 37 and a chain 38.
It vibrates in the front-back direction of the harvester by the cam mechanism consisting of the sprocket 39 and In the case of using the harvester having the sandwiching belt 10 to which the cam mechanism 34 of FIG. 8 is connected, the soila 36 is not necessarily required on sandy land.

As shown in FIG. 9, the vibrating excavation pinching belt 10a is conveyed separately from the conveyor pinching belt 10b, which is a pair of endless belts rotating in opposite directions, which conveys the belt behind the harvester. It can also be provided. In the example shown in FIG. 9, the excavation holding belt 10 is vibrated by using the vibrator 41. The vibrator 41 can be placed on a plate 42 attached to the U-shaped support 35 of FIG.

[0016]

According to the present invention, even if a pair of digging and sandwiching belts are used, they are attached to the tip of the root vegetable harvester while being inclined with respect to the horizontal, so that the intervals between the root vegetable planting articles are also increased. It can be made narrower and the yield per unit area of the field can be increased. Moreover, since the width of the planting strip of root vegetables can be narrowed, the yield per unit area of the field can be increased.

Moreover, since the digging and sandwiching belt is inclined with respect to the horizontal, the gripping force of the root vegetables is increased, and a large pulling force is generated, which is effective when the soil is hard or the root vegetables are large. Further, even if the spacing between the planting strips is narrowed in order to increase the yield of root vegetables per unit area, it is not necessary to downsize each pair of digging and sandwiching belts, so that it is not necessary to sacrifice its durability.

[Brief description of drawings]

FIG. 1 is a side view of a root vegetable harvester according to an embodiment of the present invention.

2 is a plan view of the root vegetable harvester of FIG. 1. FIG.

FIG. 3 is a configuration diagram of a drive unit of the root vegetable harvester of FIG. 1.

4 is a drive mechanism diagram of a digging and sandwiching belt portion of the root vegetable harvester of FIG.

FIG. 5 is a front view of the digging and sandwiching belt portion of the root vegetable harvester according to the exemplary embodiment of the present invention.

FIG. 6 is a front view of a digging and sandwiching belt portion of a conventional root vegetable harvester.

FIG. 7 is a front view of the digging and sandwiching belt portion of the root vegetable harvester according to the embodiment of the present invention.

FIG. 8 is a perspective view of a digging and sandwiching belt portion of a root vegetable harvester according to an embodiment of the present invention.

FIG. 9 is a side view of a root vegetable harvester according to an embodiment of the present invention.

[Explanation of symbols]

1 wheel, 2 axles, 3 vehicle body, 4 engine, 5 driving section, 6 excavation section, 7 front conveyance section, 8 rear conveyance section, 9 storage section,
10 digging and clamping belt, 12
Pulley, 13 belt, 25 cutter, 30 connecting gear member, 31
Rotating shaft, 34, 37 cam mechanism, 3
5 U-shaped support, 36 soila, 38
Chain, 39 sprockets, 41
Vibrator, 42 plates

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiichi Arima No. 1 Yakura, Tobe Town, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A root vegetable harvester that grips a part of root vegetables and transports them while pulling them out, and a pair of endless belts that rotate in opposite directions to hold a root part directly in front of the machine and dig a crop. A digging holding belt is provided, and a pair of digging holding belts are arranged so as to be inclined with respect to the ground in the vehicle width direction of the harvester or arranged horizontally in a stepwise manner with respect to the ground. Root harvester.