JP2839428B2 - Onion harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an onion harvester.

[0002]

2. Description of the Related Art Lifting and conveying means for receiving and transferring upward onions dug by a front excavating device, and a pair of openable and closable conveying tools for holding the onions in a state of being held by the lifting and conveying means. An onion harvesting machine is provided, which comprises a embodied conveying means arranged side by side at a predetermined pitch on a rotating body which circulates and rotates, and a guide path for guiding and closing the guided body in the pair of conveying tools. This is known from Japanese Patent Application Laid-Open No. 63-196206.

[0003]

In the above-mentioned conventional onion harvesting machine, when a stone or the like bites into the guide path for closing and operating the pair of transporters, the transporters are locked, and the closing operation cannot be performed. However, there is a problem in durability due to early damage. SUMMARY OF THE INVENTION It is an object of the present invention to prevent a stone from being bitten in a guideway so that a pair of conveyance tools can be reliably closed.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a lifting and conveying means 8 for receiving an onion 5 dug by a digging device 6 at a front portion and transferring the onion 5 upward; A pair of openable and closable transporting tools 27 for holding in a embracing state; and embracing / transporting means 27I arranged side by side at a predetermined pitch on a rotating body 24 that circulates and rotates. In the onion harvesting machine T provided with the guide path 27H that guides and closes, the following technical measures are taken in order to achieve the above object.

That is, according to the present invention, the guide path 27H is provided.
Pair, the opposed operating closing a pair of conveyance member 27 to guide the guided body 27G in close proximity to the rotating body 24
The guide member 27 J, consists 27K, the pair of guide members 27
J and 27K are embraced by stones etc. that have entered guideway 27H
It is provided with a guide path forming member 27K that elastically deforms when bitten by the rotation of the transfer means 27I .

[0006]

According to the present invention, when the guided body 27G having the guide path 27H attached to the carrier 27 is guided, the carrier 27 in the open position is closed and holds the bulb portion of the onion 5. Put in. When a stone bites between the guided object 27G and the guide path 27H, the guide path forming member 27K is elastically deformed and escapes to prevent biting.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B, an onion harvesting machine T is a self-propelled type, and a body 2 supported by a pair of right and left crawlers 1.
Having. A cockpit (not shown) is provided on one of the left and right sides of the front of the body 2, and an engine 3 is mounted on the other side.

A digging device 6 for digging onions 5 planted in ridges 4 of rice fields is provided in front of the machine body 2. A first conveyor device 7 for transporting the onion 5 dug up by the excavating device 6 to the rear of the body 2 behind the excavating device 6 is provided. The onion 5 conveyed by the first conveyor device 7 is received by the body 2 behind the first conveyor device 7, conveyed upward and rearward, then conveyed horizontally rearward, further inverted and conveyed forward. Conveyor device (lifting / conveying means) 8 is provided. A cutting device 9 for cutting the foliage 5a of the onion 5 is provided at the rear of the second conveyor device 8 and below the machine body 2.
Is provided. Further, a horizontal feed conveyor device 10 is provided below the second conveyor device 8 and on the body 2 in front of the cutting device 9 for transporting the onion 5 in the left and right direction.

The digging device 6 has a pair of left and right swing frames 11, the upper ends of which are rotatably supported by a swing shaft 12, and a vertically intermediate portion thereof. A stay 13 pivotally supported by the body 2 is swingably supported. A divider 14 is attached to lower ends of the pair of left and right swing frames 11 via an attachment device 15 so as to be capable of adjusting the attachment angles in the vertical and horizontal directions.
A comb-shaped excavating member 16 is attached between the lower ends of the pair of left and right swing frames 11.

The oscillating shaft 12 is rotatably supported at the front part of the body 2, and eccentric portions are provided at both ends of the oscillating shaft 12. The upper part is supported so as to be relatively rotatable. As the swing shaft 12 rotates, the swing frame 11 swings, whereby the excavating member 16 provided at the lower end swings in the front-rear direction,
The onion 5 planted in the ridge 4 is dug up with less resistance.

The first conveyor device 7 has a pair of front and rear support shafts 17 and 18 and a pair of right and left conveyor chains 19 which are circulated and circulated between the front and rear support shafts 17 and 18. Have. This pair of left and right conveyor chains 19
Are connected by horizontal rails 20 arranged at a predetermined pitch along the longitudinal direction, and the onion 5 is placed on the horizontal rails 20 and transported. Since the rear support shaft 18 is located above the front support shaft 17, the conveyor chain 19 is inclined rearwardly.

The second conveyor device 8 has a pair of front and rear support shafts 21 and 22 and a pair of upper and lower intermediate shafts 23 disposed between the front and rear support shafts 21 and 22. 23
And a pair of left and right conveyor chains 24 that are circulated and circulated between the front and rear support shafts 21 and 22 through the shaft. Since the intermediate shaft 23 and the rear support shaft 22 are disposed at substantially the same height, and the intermediate shaft 23 is disposed at a position higher than the front support shaft 21, the conveyor chain 24 includes the first conveyor 24. Circulation is performed between the inclined portion 25 inclined backward and steeply at an angle greater than the inclination angle of the device 7 and the horizontal portion 26 following the inclined portion 25.

[0013] Between the pair of left and right conveyor chains 24,
A carrier 27 for holding the onion 5 is provided at a predetermined pitch along the longitudinal direction of the chain 24. This carrier 27
Is a pair of front and rear openable receiving members 27A and holding members 27B.
Consists of The carrier 27 is opened at the inclined portion 25 so as to be able to receive the onion 5 from the first conveyor device 7 and closed so as to be able to hold the onion 5 until reaching the horizontal portion 26.
Then, when the transport direction is reversed at the rear end of the horizontal portion 26, the onion 5 is reversed while holding it, and when it is turned forward and travels a predetermined amount forward, the holding state is released,
The onion 5 is configured to drop downward.

The carrier 27 receives the bulb portion of the onion 5.
A and the holding device 27B carry the product, and the two devices 27A and 27B have a substantially symmetrical shape.
And a trapezoidal side view holding member 27D pivotally supported in a direction opposite to a pivot 27C connected to the holding member 27C and pivotally supported at intervals in the longitudinal direction of the pivot 27C, and a bent portion of the holding member 27D. And a receiving rod 27E fixed to the tip end, and the receiving element 27A is held by the stopper 27F in a position capable of receiving the onion 5 in the inclined part 25, and the holding member 27B is connected to both ends of the receiving rod 27F. Guided body (roller) 2
7G, and the guided body 27G is a left and right guide path 27H.
Can be rolled or slid.

Here, the chain 24 is a rotating body, and a pair of conveyors (receiver and holder) 27A and 27B are arranged side by side at a predetermined pitch to constitute the embed conveyor 27I.
The guide path 27H is close to the chain 24 above the inclined path 25, and guides the guided body 27G upward in the vertical direction to close the holding member 27B, and a guide tool 27J,
A guide path forming member 27K is provided, which is in contact with the guide 27J and is elastically deformed when a stone or the like bites between the guided body 27G and the guide path 27H.

As shown in FIG. 1 (A), the guide 27J has an upright shape in a side view, and its tip (lower end) is tapered so that the guided body 27G can climb smoothly. And a slight clearance between the chain 24 and the thick mounting plate 27L fixed (welded) to the back of the guide 27J.
By attaching and detaching with M, it is exchangeable and adjustable.

The guide path forming member 27K is made of a leaf spring or the like. The lower end is fixed by bolts or the like, and the upper end is free end (free).
As shown by arrow D in (A), the foreign matter (C) is lifted or eliminated without elastically deforming to generate escape lock. Accordingly, the pair of transporting tools 27 receive the onion 5 by the receiving tool 27A on the inclined path 25, the closing operation of the hugging tool 27B is performed by the guide path 27H, and the conveying apparatus 27 is transported in the horizontal path 26 while being embraced. The foliage is cut by
It is then released under its own weight.

The cutting device 9 includes a clipper type cutting blade 2.
When the onion 5 is turned upside down and conveyed forward at the rear of the second conveyor device 8, the cutting blade 28 reciprocates in the left-right direction. It is arranged at a position where the foliage 5a hanging from the bulb is cut from the bulb. The traverse conveyor device 10
Has a conveyor belt 29 that is provided so as to be freely circulated in the left-right direction. The bulb portion of the onion 5 from which the foliage 5 a has been cut by the cutting device 9 is conveyed forward by a predetermined amount by the second conveyor device 8, and then the conveyor belt 29 disposed below by releasing the holding of the conveyor 27. Fall on the side, is fed sideways and stored in the container 30, or
Released into rice fields.

FIG. 2 shows a power transmission system diagram of the onion harvester having the above configuration. Power from the engine 3 is transmitted to an input shaft 33 of a reduction transmission case 32 via a counter shaft 31. In this mission case 32,
A first output shaft 34 and a second output shaft 35 for outputting the power of the input shaft 33 at a reduced speed at a predetermined reduction ratio are provided.
High-speed power and low-speed power are extracted from the input shaft 33 and the second output shaft 35 to the crawler drive shaft 36 via a clutch. With this crawler drive shaft 36,
The crawler 1 is driven, and the body 2 runs.

The swing shaft 12 of the excavating device 6 is driven to rotate from the first output shaft 34 via a drive chain 37 and a relay shaft 38. From the second output shaft 35 to the drive chain 3
Power is transmitted to the input shaft 42 of the bevel gear box 41 via the torque limiter 9 and the torque limiter 40. This input shaft 4
The output shaft 43 of the bevel gear box 41 orthogonal to 2 is
The drive shaft 43 of the conveyor belt 29 of the lateral feed conveyor device 10 is used. The drive shaft 43 is linked to a crankshaft 44 that drives the cutting blade 28 of the cutting device 9.

The input shaft 42 of the bevel gear box 41
And the rear support shaft 22 of the second conveyor device 8 are linked to each other via a drive chain 45 and a relay shaft 46.
The rear support shaft 22 is a shaft that is continuous in the left-right direction, and a sprocket 47 for driving a conveyor chain is fixed to both left and right sides of the support shaft 22. The front support shaft 21 of the second conveyor device 8 is a shaft divided into right and left, and a driven sprocket 48 for a conveyor chain is fixed to each of the left and right support shafts 21.

One of a pair of left and right support shafts 21 at the front of the second conveyor device 8 and the rear support shaft 18 of the first conveyor device 7 are connected to each other by a drive chain 49. According to the embodiment of the present invention having the above structure, the engine 3
Power of the counter shaft 31 → deceleration transmission case 32
Input shaft 33 → second output shaft 35 → torque limiter 40 →
The input shaft 42 of the bevel gear box 41 → the rear support shaft 22 of the second conveyor device 8 → the front support shaft 21 → the power is transmitted to the rear support shaft 18 of the first conveyor device 7, and the first conveyor device 7 and the second conveyor device 8 are transmitted. Is driven.

The second conveyor device 8 is driven so that the rear support shaft 22 serves as a drive shaft and conveys the onion 5 placed on the upper surface thereof rearward. The transfer surface side is easily pulled and the trouble caused by the looseness as in the prior art is eliminated. FIGS. 3 and 4 show a second embodiment, in which a plurality of foliage guide rods 50 extending in the longitudinal direction are arranged side by side in the inclined path 25 and the horizontal path 26 of the second conveyor device 8 in the width direction. The reversing section of the two-conveyor device 8 is provided with a reversing mechanism 51 and a foliage lowering means 52 for forcibly hanging down the foliage 5a of the onion 5 at the time of reversing. The other components are the same as those of the first embodiment.

The foliage guide rod 50 is attached by a stay 50C, and the receiving rod 27E is cut to form a recess 50A.
The foliage guide rod 50 is immersed in the concave portion 50A, and the rod 50 is made to rise upward and forward on the slope 25, so that the foliage 5a is gradually lifted and aligned with the brush 50B, thereby eliminating foliage cutting errors. The reversing mechanism 51
A strip plate 51A is provided rotatably with the support shaft 22 in a radial arrangement, and the foliage lowering means 52 makes it easy to cut the foliage 5a by swinging the comb teeth 52B along a locus 52C by the crank arm 52A. Is what you do.

In the present invention, a rotating disk can be used instead of the chain 24, and these are rotating bodies.

[0026]

The present invention has been described above. The onion is held by a pair of openable and closable conveyance tools during lifting and conveyance.
Elimination of foreign matter biting can be carried out smoothly, and durability can be improved.

[Brief description of the drawings]

FIGS. 1A and 1B show a first embodiment of the present invention, wherein FIG. 1A is a side view of a main part, and FIG.

FIG. 2 is a configuration diagram showing a power transmission system.

FIG. 3 is a side view showing a second embodiment of the present invention.

4A and 4B show a second embodiment of the present invention, wherein FIG. 4A is a plan view of a main part, and FIG. 4B is a front view of the main part.

[Explanation of symbols]

 Reference Signs List 6 excavating device 8 lifting / conveying means 24 rotating body 27 carrying tool 27H guideway 27G guided body 27J guideway 27K guideway forming member

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Mikiyasu Yoshioka 4-165-3, Kaiyama-cho, Sakai-shi, Osaka (56) References Japanese Utility Model 137816 (JP, U) Japanese Utility Model 2-127638 (JP, U.S.A.) U) Japanese Utility Model Showa 58-143529 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims] 1. A lifting and conveying means (8) for receiving an onion (5) dug by a digging device (6) at a front part and transferring it upward.
And a pair of openable and closable conveying tools (27) for holding the onions (5) in the embracing state in the lifting and conveying means (8), arranged in parallel with a rotating body (24) circulating and rotating at a predetermined pitch. Transport means (27I), and the pair of transport tools (2
7) In the onion harvesting machine (T) provided with the guide path (27H) that guides and closes the guided body (27G) in (7), the guide path (27H) is close to the rotating body (24). To guide the guided object (27G) to move the pair of transporters (2
7) A pair of opposing guides (27J) that close and operate
(27K), and the pair of guides (27J) (27
Stones, etc. that have entered the guideway (27H) are embraced in K)
Onion harvester, characterized in that it comprises a guide path forming member elastically deformed (27K) when it caught in the rotation of the conveying means (27I).