JP3336133B2 - Self-propelled onion harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled harvester (hereinafter simply referred to as an onion harvester) for digging and collecting root vegetables such as onions and carrots from a field.

[0002]

2. Description of the Related Art A self-propelled onion harvesting machine is known which digs up planted root crops such as onions and carrots from a field, transports them by lifting, and collects them by means such as a conveyor. (See, for example, Japanese Utility Model Laid-Open No. 62-104632 and Japanese Utility Model Laid-Open No. 57-192120).

[0003]

A conventional onion harvester is:
Although root crops to be planted in a field can be dug, lifted, transferred and collected for processing, there is also a disadvantage that the whole harvester becomes complicated and large.

[0004]

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned difficulties. In order to achieve the object, a self-propelled onion harvesting machine having the following technical means has been provided. ing. A weeding device (12) for sorting and shaping the foliage of root crops planted in the field, a scraping device (13) disposed behind the weeding device (12), Chisel (14) for excavating the root, and a foliage holding and transferring device (15) which is installed by connecting the starting end of holding to a scraping device (13).
And a neck holding and transferring device (1) disposed below the foliage holding and transferring device (15) for holding and transferring the neck of the root crop.
6), and the foliage pinching and transferring device (15) is a pair of left and right soft elastic members which are wound around a group of wheels supported by the upper frames (9) and (9) of the working machine frame (7). The left and right transport endless belts (2, 25)
5) The starting-end loop body (26) around which (25) is wound is provided coaxially with the loop body support shaft (53) of the rear wheel body (27) which loops around the endless belt of the scraping device (13). And the ring support shaft (5
When the rear wheel (27) of the scraping device (13) is fitted to the upper end of 3), and the left and right transport endless belts (25) and (25) rotate, a pair of left and right scrapes of the scraping device (13) are rotated. The endless belt is configured to rotate at the same time, and a chain case (54) is provided between the upper and lower rings (27) and (26). The drive shaft (56) disposed at the rear end of the chain case (54) is rotationally driven by the mechanism (55), and the drive shaft (56) is connected via a bending joint (57). It consists of a weeding drive shaft (56a) and a lower drive shaft (56b),
The bearing is supported by a support case (58) having an inverted letter shape.
The lower drive shaft (56b) is attached to the front wheel (5) around the transport endless belt (28) of the neck holding / transporting device (16).
9) is wedge-fitted.

[0005]

When the self-propelled onion harvester constructed as described above is advanced as expected in a field where root crops are planted, the weeding device sorts the foliage of the root crops. As he appears, the scraper scrapes the foliage. Then, after the foliage was scraped into the raking device, the chisel dug underground so that the root of the root crop was dug up, and the foliage of the root crop was inherited by the foliage holding and transferring device. while being sandwiched, more both clamping transfer apparatus neck of the root crops is sandwiched neck clamping transfer device, it is delivered to the desired location.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall side view of a self-propelled onion harvester according to the present invention, and FIG. 3 is a sectional view showing a rear transmission system of the self-propelled onion harvester, FIG. 4 is a cross-sectional view showing a front transmission system of the self-propelled onion harvester, and FIG. 5 is a binding device of the onion harvester. It is the schematic which looked at the part from the back.

The illustrated self-propelled onion harvesting machine is of a walking type and includes a self-propelled vehicle (A) and a harvesting work section (B). The self-propelled vehicle (A) has a transmission case (2) equipped with an engine (1) and a transmission mechanism interlocked with an output unit thereof.
And the right and left final cases (3) and (3) connected to the transmission case extending left and right from the transmission case (2).
A drive wheel (4) (4) supported by each final case (3), a main frame (5) attached to the front side of the transmission case (2) and the engine (1), and a main frame (5). It comprises a steering handle (6) extending rearward and upward from the frame (5).

A work machine frame (7) is provided at the front of the self-propelled vehicle (A), and various components are attached to the work machine frame (7) to constitute a harvesting work section (B). . The work machine frame (7) includes a plurality of lower frames (8) (8) extending forward from the main frame (5), and the lower frames (8) support the front ends thereof and are inclined obliquely rearward and upward. Upper frame (9) (9) and a transmission case (10) to be described later are formed into a substantially triangular frame when viewed from the side, and the weeding frame (11) forward from the respective lower frame (8). Is configured to extend. In addition, (W) is a gauge wheel provided on both or one of front extension lines of the drive wheels (4) and (4), and is attached to the work machine frame (7) so as to be vertically movable.

The element devices constituting the harvesting work section (B) are as follows:
Weeding device (12), scraping device (13), chisel (1
4) a foliage holding and transferring device (15), a neck holding and transferring device (16), a connecting / disconnecting device (17), a binding device (18), a collected object receiving plate (19), and the like. 7) is attached to a predetermined portion in a predetermined manner, and required ones thereof are forcibly driven by a transmission mechanism described in detail below.

The weeding device (12) sorts and arranges the foliage of root crops planted in rows in a field, and comprises a plurality of sets of fixed weeding plates (12a) arranged side by side. It is composed of a tine retractable vertical separating device (12b), and is provided at the front end in the traveling direction of the working machine frame (7). That is, a fixed weeding board (12a) is fixed to the front end of a weeding frame (11) extending forward from the lower frame (8), and the front of the fixed weeding board (12a) has a low front and rear height. The inclined vertical separating device (12b) is mounted on a stand (2).
0), the vertical transmission cylinder (21) and the horizontal transmission cylinder (22) are attached to and supported by the work machine frame (7).

In the illustrated embodiment, three sets of fixed weeding boards (12a) and a vertical turning and separating apparatus (12b) are arranged side by side in the horizontal direction, and are located on the left and right sides of them. Although the object can be attached to the work machine frame (7), since the members constituting the work machine frame (7) are not present in the center portion, the central vertical separating device (12) is used.
The front part of b) is a left or right vertical turning and separating device (12b).
The center fixed weeding board (12a) is mounted on the case of the center vertical separating device (12b).

The scraping device (13) is provided with the weeding device (1).
It is provided so that the foliage portion of the root vegetable crop sorted and arranged in 2) is scraped into the central portion in the width direction and is taken over by the nipping start end of the foliage nipping and transferring device (15). 1), a pair of left and right endless belts which are obliquely installed at a rear height on the lower rear part of the weeding device (12) and which are installed in a plane application (see FIG. 2) so as to be wrapped in an octagonal shape extending forward. Each of the endless belts is provided with a conveyance projection having a receding angle on the lower side in the rotation direction and capable of being elastically deformed.

[0013] The chisel (14) is provided with an underground portion of the root vegetable crop at a time point after the scraping device (13) scrapes the foliage portion of the root vegetable crop in which the weeding device (12) sorts and arranges, In other words, the ground is excavated so as to excavate the root. In the embodiment, horizontal blades (14b) extending inward from the lower end of the vertical plate (14a) are positioned facing each other. It consists of a pair of left and right blades. Each blade body is attached to the work machine frame (7) so that the vertical middle part of the vertical plate part (14a) can swing back and forth about the pivot (24).

The foliage holding / transporting device (15) is a pair of left and right soft elastic transport endless belts (see FIG. 1) which are wound around a shaft group supported by the upper frames (9) and (9) of the working machine frame (7). 2
5) Included in (25), and inclined from front to rear and back along the inclination of the upper frames (9) and (9) in side view (see FIG. 1),
In a plan view (see FIG. 2), the rear portion is provided to bend laterally so as to have a substantially rectangular shape. Then, the foliage portion of the root vegetable crop taken over from the scraping device (13) is sandwiched between the opposing contact surfaces of both endless bands (25), (25), and is lifted and transferred upward after being inclined. The transporting endless belt loop (26) on the starting end side of the foliage holding and transferring device (15) is provided coaxially with the rear loop (27) that loops around the endless belt of the scraping device (13). ing.

On the other hand, a neck clamping transfer device (16) disposed below the foliage clamping transfer device (15) clamps the root of the root crop having the foliage clamped by the foliage clamping transfer device (15). The root crop is transported backward in cooperation with the foliage clamping and transferring device (15), and the neck clamping and transferring device (16) is pivotally mounted on the lower frame (8) of the working machine frame (7). It is composed of a pair of left and right soft elastic transport endless belts (28) (28) that wrap around the monkey group, and the nipping start end is located slightly behind the nipping start end of the foliage holding and transferring device (15). Have been.

[0016] The rear end of the transport endless band (28) is bent laterally in a plan view by being inclined at a gentler inclination angle than that of the foliage holding and transferring device (15) in a side view. The transport endless belts (28), (28) are located at substantially the center of the body so as to be misaligned in the lateral direction with respect to the rear portion thereof. It faces the focusing passage (29) of (18). Since the transfer direction of the foliage holding and transferring device (15) and the neck holding and transferring device (16) is rearwardly expanding in a side view, the foliage is constantly pulled upward.

The binding device (18) is disposed in a triangular space in a side view formed between the foliage holding and transferring device (15) and the neck holding and transferring device (16). Thus, the binding device (18) includes the binding transmission case (30) positioned above and the focusing passage (2) below the binding transmission case (30).
9) are formed, and a knot portion (31) and a needle (32) located on both sides of the focusing passage (29) are provided.
And the like are suspended from the binding transmission case (30).

The binding device (18) is attached to the work machine frame (7) by any attachment means. For example, as shown in FIG. 29) and a mounting member (3) which is disposed so as to avoid the vicinity such as the knot portion (31) and the needle (32).
3) (34), so that a wide pocket is secured in the focusing passage (29) and the lower part thereof.

Then, the nodule (31) and the needle (3)
A condensed object receiving plate (35) is appropriately separated downward from 2) at the site.
The bundle receiving plate (35) supports the root portion (36) of the root vegetable crop lifted and transferred by the foliage holding and transferring device (15) and the neck holding and transferring device (16). It is configured as follows. The collected object receiving plate (35) is mounted on the lower frame (8) of the working machine frame (7) so that the vertical position can be freely changed, and the vertical position is adjusted as necessary to adjust the knot portion (31) and the needle ( The binding position can be adjusted and set by changing the relative height with respect to 32).

The bundle receiving plate (35) also serves as a guide plate for discharging the root crops bundle bound by the binding device (18) from the binding device. 35) The rear part is gently inclined downward. In the illustrated example, the bundle receiving plate (35)
Only the up and down position can be changed and adjusted. However, in some cases, the whole or a part of the condensed object receiving plate (35) can be tilted and adjusted in the front-rear direction, so that the function as a guide plate is more appropriately performed. You may do so. Further, it is easy to replace the bundle receiving plate (35) with one having a different shape so that it can cope with the harvest of different root vegetable crops.

[0021] The cutting device (17) is provided with a foliage portion of a root vegetable crop which is held by the foliage holding and transferring device (15) and the neck holding and transferring device (16) and is lifted and transferred to a root portion of a required length. It is provided for cutting and separating while leaving the foliage, and is disposed near the lower side of the foliage holding and transporting device (15), at the upstream of the binding unit (18). And
When the cutting device (17) cuts the foliage of the root crop during lifting and transferring, the cut foliage and root are separately transferred by the foliage holding and transferring device (15) and the neck holding and transferring device (16). The roots are gradually separated in the vertical and horizontal directions, and are fed into the focusing passage (29) of the binding device (18). The illustrated cutting device (17) is a rotary blade, but may be a fixed blade or a reciprocating blade.

Next, the power drive elements of the harvesting work section (B) element devices, that is, the weeding device (12), the scraping device (13), the chisel (14), the foliage holding and transferring device (1)
5), a neck clamping transfer device (16), a cutting device (17),
A transmission mechanism for driving the binding device (18) and the like will be described. Counter axis (3) parallel to main frame (5)
7) are arranged along the main frame (5), a passive bevel case (38) in the middle part in the longitudinal direction, a worm gear case (39) on the left side, and a binding drive bevel case (40) on the right side. The counter shaft (37) is mounted on the vehicle (A) by attaching these cases to the main frame (5) via the support members (41) and (42). Then, the PTO shaft (44) extending forward from the transmission case (2) and the counter shaft (37) are linked and connected by a pair of bevel gears (43) which always mesh in the passive bevel case (38). ing.

In the worm gear case (39), a worm wheel (46) is meshed with a worm gear (45) fitted on the counter shaft (37), and the worm wheel (46) is connected to the worm gear case ( 39) is fitted to a drive shaft (47) extending upward. The drive shaft (47) is connected to the worm gear case (3
9) Standing up from the upper part and the left upper frame (9)
Is attached to the above-mentioned left transmission case (10) to which the above-mentioned is attached, and a rear wheel body that hangs around the left endless belt (25) of the foliage holding and transferring device (15) is fitted to the upper end of the shaft. Then, the worm gear (45) from the counter shaft (37),
The left transport endless belt (25) is configured to be rotationally driven by power transmitted to the rear wheel body via the worm wheel (46) and the drive shaft (47).

Further, a chain case (48) provided on the upper surface side of the worm gear case (39) has a chain (48) with a driving sprocket (69) fitted to the driving wheel (47) and a driven sprocket (49). A chain transmission mechanism formed by looping the chain (50);
The endless transfer belt (2) on the right side of the foliage holding and transferring device (15)
The sprocket (51) for driving 5) is circumscribed. The sprocket (51) is erected on the support member (41) and has its upper end moved inside the right transmission case (10) joined to the right upper frame (9).
2), the right transfer endless belt (25) is rotationally driven in the opposite direction to the left transfer belt by the power transmitted from the drive shaft (47) to the rotary shaft (52) via the chain transmission mechanism. It is configured.

As described above, the ring (26) on the starting end side around which the left and right transport endless belts (25) and (25) are wound,
Rear wheel body (27) for hanging the endless belt of the scraping device (13)
, That is, as shown in FIG.
A wheel support shaft (5) supported by an upper frame (9) or the like
The rear wheel (27) of the scraping device (13) is fitted on the upper end of 3), and therefore, the left and right transport endless belts (25).
When (25) rotates, a pair of left and right endless bands of the scraping device (13) also rotate at the same time.

As shown in FIG. 4, a chain case (54) is provided between the upper and lower wheel bodies (27) and (26), and a chain transmission mechanism (55) incorporated therein. ), The drive shaft (56) provided at the rear end of the chain case (54) is configured to be rotationally driven. The drive shaft (56) is a bending joint (57)
And a lower drive shaft (56b), which is connected to the support case (58) in the shape of an inverted letter in FIG. The lower drive shaft (56b) has a neck holding and transferring device (1).
6) Front wheel body (59) around the endless transfer belt (28)
The weeding drive shaft (56a) is housed in the vertical transmission shaft tube (21), and the aforementioned horizontal transmission tube (22).
The drive shaft of the vertical turning / separating device (12b) housed therein is rotationally driven to drive a plurality of sets of the vertical turning / separating devices (12b) in common. The weeding drive shaft (56a) is connected to either the left or right chain case (5).
4), and only the lower drive shaft (56b) is provided in the other chain case (54).

The left and right shaft ends of the counter shaft (37)
The worm gear case (39) on the left side and the binding drive bevel case (40) on the right side protrude outward, respectively, and the eccentric rotors (60) and (60) are attached to the respective protruding portions. 60) (60) is a connecting rod (61)
The eccentric rotator (60) is connected to the upper end of the vertical plate (14a) of the left and right chisel (14) via (61).
(60) causes the left and right chisels (14) to vibrate back and forth at a predetermined amplitude.

The binding drive bevel case (40) located near the right end of the counter shaft (37) is provided with a binding transmission shaft (63) linked to the counter shaft (37) by a bevel gear mechanism (62). The binding transmission shaft (63) projects upward from the binding drive bevel case (40). And a transmission case (65) incorporating a chain transmission mechanism (64) interlocked with the binding transmission shaft (63).
Is extended above the binding transmission case (30) and forward through the left side of the binding transmission case (30), and is suspended from the front end of the binding transmission case (30).
And a binding input shaft (67) are linked to each other by a chain transmission mechanism, and input to the binding device (18).

Further, a transmission (68) for driving the cutting device is interlockedly connected to a rotating shaft (66) hanging down from the front end of the binding transmission case (30), and is transmitted through the device (68). The cutting device (17) is driven by a motive power. When the cutting device (17) is of a driving type, the power is not limited to being driven by the transmission device (67) as in the embodiment, and power is transmitted from another appropriate transmission shaft as needed. And a cutting device (1
The support in 7) may be provided by being supported by a convenient member such as a binding device or an upper frame.

[0030]

As described above, the present invention has the following advantages. That is, the left and right transport endless belts (25) (2) constituting the foliage holding and transferring device (15)
When 5) is rotated, the pair of left and right endless bands of the scraping device (13) can be simultaneously rotated.

[Brief description of the drawings]

FIG. 1 is an overall side view of a self-propelled onion harvester according to the present invention.

FIG. 2 is a waist plan view of the self-propelled onion harvester.

FIG. 3 is a sectional view showing a rear transmission system of the self-propelled onion harvester.

FIG. 4 is a sectional view showing a front transmission system of the self-propelled onion harvester.

FIG. 5 is a schematic view of a binding device portion of the self-propelled onion harvester as viewed from the rear.

[Explanation of symbols]

 12 Weeding device 13 Scraping device 14 Chisel 15 Stem and leaf part pinching and transferring device 16 Neck part pinching and transferring device 18 Binding device 29 Focusing passage 30 Binding transmission case 31 Node portion 32 Needle 35 Concentrated object receiving plate

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims] 1. A weeding device (12) for sorting and shaping the foliage of root crops planted in a field, and a scraping device (13) disposed behind the weeding device (12) A chisel (14) for excavating the root of a root vegetable crop, and a foliage holding and transporting device (1) which is installed by connecting a gripping start end to a scraping device (13).
5), and a neck clamping transfer device for clamping the transfer is arranged downward the neck of root crops of該茎leaves clamping transfer device (15) (16),該茎leaf clamping transfer device (15),
The pair of left and right soft elastic transfer endless belts (25) and (25), which surround a group of wheels supported by the upper frames (9) and (9) of the work machine frame (7), respectively. The end-side ring (26) around which the endless belt (25) (25)
Rear wheel body (27) for hanging the endless belt of the scraping device (13)
Of the scraping device (13) is provided coaxially with the wheel support shaft (53) of the rear body (2) at the upper end of the wheel support shaft (53).
7) is fitted, and when the left and right transport endless bands (25) and (25) rotate, the pair of left and right scraping endless bands of the scraping device (13) also rotate at the same time. A chain case (54) is provided at a portion between the ring bodies (27) and (26), and a chain transmission mechanism (55) incorporated therein is provided at the rear end of the chain case (54). The drive shaft (56) arranged is rotationally driven, and the drive shaft (56) is composed of a weeding drive shaft (56a) and a lower drive shaft (56b) connected via a bending joint (57). The bearing is supported by a support case (58) having an inverted letter shape.
A front wheel body (59) that hangs around the transport endless band (28) of the neck holding and transferring device (16) is wedge-fitted to the lower drive shaft (56b). Running ball onion harvester.