JPH078065A - Onion harvester - Google Patents

Abstract

PURPOSE:To prevent a pair of conveying tools from biting a stone in a guide passage and enable the sure closing operation of the pair of conveying tools. CONSTITUTION:This onion harvester (T) is equipped with a lifting conveying means 8 for receiving each onion 5 dug with a digger 6 in the front and conveying the onion upward, holding conveying means (27I) arranged side by side at a specific pitch in a rotating unit 24 revolving and rotating a pair of openable and closable conveying tools 27 capable of holding the onion 5 in the lifting conveying means 8 in a held state and a guide passage (27H) capable of guiding a unit (27G) to be guided in the pair of conveying tools 27 and performing the closing operation. The guide passage (27H) is provided with a guide tool (27J), adjacent to the rotating unit 24 and guiding the unit (27G) to be guided and performing the closing operation of the pair of conveying tools 27 and a guide passage-forming member (27K) facing to the guide tool (27J) and carrying out the elastic deformation when a stone, etc., bites between the unit (27G) to be guided and the guide passage (27H).

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an onion harvester.

[0002]

2. Description of the Related Art Lifting and conveying means for receiving an onion dug up by a front digging device and moving it upward, and a pair of openable and closable conveying tools for holding the onion in a held state. The onion harvesting machine is provided with: a rotating body that circulates and rotates; and a wrap-around conveying unit that is juxtaposed at a predetermined pitch; and a guide path that guides and closes the guided body of the pair of conveying tools. It is known from Japanese Laid-Open Patent Publication No. 63-196206.

[0003]

In the above-mentioned conventional onion harvesting machine, when a stone or the like is caught in the guide path for closing the pair of conveying tools, the conveying tools are locked and the closing operation cannot be performed. However, there was a problem in terms of durability due to early damage. Therefore, an object of the present invention is to prevent stones from being bitten in the guide path so that the pair of conveying tools can be reliably closed and operated.

[0004]

According to the present invention, a lifting / conveying means 8 for receiving an onion 5 excavated by a front digging device 6 and transferring it upward, and a lifting / conveying means 8 for moving the onion 5 in the lifting / conveying means 8. A pair of openable and closable conveying tools 27 that are held in a squeezed state are circulated and rotatably provided with a squeezing conveying means 27I that is juxtaposed at a predetermined pitch on a rotating body 24. In the onion harvester T provided with the guide path 27H that guides and closes, the following technical measures are taken in order to achieve the above-mentioned object.

That is, according to the present invention, the guide path 27H is used.
Is a guide tool 27J that is close to the rotating body 24 and guides the guided body 27G to close the pair of transport tools 27.
And a guide path forming member 27K which is in contact with the guide tool 27J and elastically deforms when a stone or the like is caught between the guided body 27G and the guide path 27H. Is.

[0006]

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

[0007]

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

A digging device 6 for digging the onion 5 planted in the ridge 4 of the rice field is provided at the front part of the machine body 2. A first conveyor device 7 for conveying the onion 5 dug up by the digging device 6 to the rear is provided on the machine body 2 behind the digging device 6. The onion 5 conveyed by the first conveyor device 7 is received in the machine body 2 behind the first conveyor device 7, conveyed rearward and upward, and conveyed in the rearward horizontal direction, and further inverted and conveyed forwardly. A second conveyor device (lifting and conveying means) 8 for performing the above is provided. A cutting device 9 for cutting the foliage 5a of the onion 5 to the machine body 2 behind and below the second conveyor device 8.
Is provided. Further, below the second conveyor device 8 and in front of the cutting device 9, a traverse conveyor device 10 for conveying the onion 5 in the lateral direction is provided on the machine body 2.

The excavation device 6 has a pair of left and right swing frames 11. The swing frame 11 has an upper end supported by a swing shaft 12 so as to be rotatable relative to the swing frame 11. The stay 13 pivotally supported by the machine body 2 is swingably supported. A divider 14 is attached to the lower end portions of the pair of left and right swing frames 11 via an attachment device 15 so that the attachment angle can be adjusted in the vertical direction and the horizontal direction.
A comb-tooth-shaped excavating member 16 is attached between the lower ends of the pair of right and left swing frames 11.

The swing shaft 12 is rotatably supported on the front part of the machine body 2, and eccentric portions are provided at both ends of the swing shaft 12, and the swing frame 11 is provided at the eccentric portions. The upper part is supported so as to be relatively rotatable. When 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 left and right conveyor chains 19 circulated between the front and rear support shafts 17 and 18 so as to be freely circulated. Have. This pair of left and right conveyor chains 19
Are connected by the horizontal rails 20 arranged at a predetermined pitch along the longitudinal direction, and the onion 5 is placed on the horizontal rails 20 and conveyed. Since the rear support shaft 18 is disposed above the front support shaft 17, the conveyor chain 19 is inclined rearward.

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 arranged between the front and rear support shafts 21 and 22. 23
It has a pair of left and right conveyor chains 24 circulated between the front and rear support shafts 21 and 22 so as to be freely circulated. 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 above the front support shaft 21, the conveyor chain 24 is connected to the first conveyor. The inclined portion 25 that is inclined more steeply backward than the inclination angle of the device 7 and the horizontal portion 26 that follows the inclined portion 25 are circulated.

Between the pair of left and right conveyor chains 24,
The transport tools 27 that hold the onion 5 are provided at a predetermined pitch along the longitudinal direction of the chain 24. This transport tool 27
Is a pair of front and rear holders 27A and 27B that can be opened and closed.
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 is closed so as to be able to hold the onion 5 before reaching the horizontal portion 26.
Then, when the conveying direction is reversed at the rear end of the horizontal portion 26, it is reversed while holding the onion 5, and when it is reversed and moved forward by a predetermined amount, the held state is released,
It is configured to drop the onion 5 downward.

The transport tool 27 is a tool 27 for receiving the bulb portion of the onion 5.
A and a hugging tool 27B are carried by being hugged, and both 27A and 27B have a substantially symmetrical shape.
Holding body 27D having a trapezoidal shape in a side view, which is rotatably supported in the opposite direction to a pivot shaft 27C connected to, and is pivotally supported with a space in the longitudinal direction of the pivot shaft 27C, and a bent portion of the holding body 27D. Also, the receiving tool 27A is fixed to the tip of the receiving tool 27A, and the receiving tool 27A is held by the stopper 27F in a posture capable of receiving the onion 5 at the inclined portion 25. To be guided (roller) 2
7G, and the guided body 27G has left and right guide paths 27H.
Can be rolled or slid.

Here, the chain 24 is a rotating body, and a pair of conveying tools (receiving tool and hugging tool) 27A, 27B are arranged side by side at a predetermined pitch to form a squeezing transfer means 27I.
The guide path 27H is close to the chain 24 in the upper part of the inclined path 25 and guides the guided body 27G vertically upward to close the holding tool 27B, and a guide tool 27J.
A guide path forming member 27K that is in surface contact with the guide tool 27J and elastically deforms when a stone or the like is caught between the guided body 27G and the guide path 27H is provided.

As shown in FIG. 1 (A), the guide tool 27J has an upright shape in a side view, and its tip (lower end) is tapered so that the guided body 27G can be smoothly lifted up. For a slight clearance with the chain 24, attach the thick mounting plate 27L fixed (welded) to the back surface of the guide tool 27J with the bolt 27.
It is replaceable and adjustable by attaching and detaching with M.

The guide path forming member 27K is composed of a leaf spring or the like, the lower end is fixed with bolts or the like and the upper end is a free end (free).
As shown by the arrow D in (A), the foreign matter (C) is lifted or removed without elastically deforming to generate escape lock. Therefore, the pair of conveying tools 27 receives the onion 5 in the receiving path 27H in the inclined path 25, and the holding tool 27B closes in the guiding path 27H, and is transferred in the hugging state in the horizontal path 26. Will cut the foliage,
Then it is released by its own weight.

The cutting device 9 is a hair clipper type cutting blade 2.
8 is reciprocally movable in the left-right direction, and the cutting blade 28 of the onion 5 held by the carrier 27 when the onion 5 is turned upside down at the rear portion of the second conveyor device 8 and is conveyed forward. It is arranged at a position where the foliage 5a hanging from the bulb is cut from the bulb. The lateral feed conveyor device 10
Has a conveyor belt 29 that can be circulated and routed in the left-right direction. The bulb portion of the onion 5 whose foliage 5a has been cut by the cutting device 9 has been conveyed forward by a predetermined amount by the second conveyor device 8, and then the conveyor belt 29 arranged below due to the hug release of the conveying tool 27. Dropped up and fed sideways and stored in container 30, or
It is released to rice fields.

FIG. 2 shows a power transmission system diagram of the onion harvester having the above construction. The power from the engine 3 is transmitted to the input shaft 33 of the deceleration mission case 32 via the counter shaft 31. In this mission case 32,
A first output shaft 34 and a second output shaft 35 that reduce the power of the input shaft 33 at a predetermined reduction ratio and output the power 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 the clutch. With this crawler drive shaft 36,
The crawler 1 is driven and the machine body 2 runs.

The swing shaft 12 of the excavator 6 is rotationally driven from the first output shaft 34 via the drive chain 37 and the 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 40 and the torque limiter 40. This input shaft 4
The output shaft 43 of the bevel gear box 41 orthogonal to 2 is
It is used as a drive shaft 43 of the conveyor belt 29 of the transverse feed conveyor device 10. The drive shaft 43 is interlocked with a crank shaft 44 that drives the cutting blade 28 of the cutting device 9.

Input shaft 42 of the bevel gear box 41
And the rear support shaft 22 of the second conveyor device 8 are interlockingly connected via a drive chain 45 and a relay shaft 46.
The rear support shaft 22 is a shaft continuous in the left-right direction, and sprocket wheels 47 for driving the conveyor chain are 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 left and right divided shaft, and a driven sprocket 48 for a conveyor chain is fixed to each of the left and right support shafts 21.

One of the 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 interlockingly connected by a drive chain 49. According to the embodiment of the present invention having the above configuration, the engine 3
The power of the counter shaft 31 → deceleration mission case 32
Input shaft 33 → second output shaft 35 → torque limiter 40 →
It is transmitted to 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 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 has the rear support shaft 22 as a drive shaft and is driven so as to convey the onion 5 placed on the upper surface side thereof to the rear, so that the upper surface of the conveyor chain 24. The transport surface side of is free to pull, and the trouble due to loosening as in the past does not occur. 3 and 4 show a second embodiment, in which a plurality of foliage guide rods 50 extending in the longitudinal direction are arranged in parallel in the width direction in the inclined path 25 and the horizontal path 26 of the second conveyor device 8. The inverting mechanism 51 and the foliage lowering means 52 that forcibly hangs the foliage 5a of the onion 5 at the time of inverting are attached to the inverting part of the two-conveyor device 8, and the others are common to 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.
By arranging the foliage guide rod 50 in the recessed portion 50A and raising the rod 50 upward and forward in the inclined path 25, the foliage 5a is gradually picked up and aligned with the brush 50B to eliminate foliage cutting mistakes. The reversing mechanism 51 is
A strip plate 51A is provided on the support shaft 22 in a radial arrangement so as to be rotatable together, and the foliage lowering means 52 makes it easy to cut the foliage 5a by swinging a comb tooth body 52B along a locus 52C by a crank arm 52A. To do.

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

[0026]

EFFECTS OF THE INVENTION The present invention is as described above, and when the onion is held and carried by a pair of openable and closable carrying tools,
Foreign matter is not bitten, it can be transported smoothly and durability can be improved.

[Brief description of drawings]

1A and 1B show a first embodiment of the present invention, in which 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, in which FIG. 4A is a plan view of a main part, and FIG. 4B is a front view of the main part.

[Explanation of symbols]

 6 digging device 8 lifting transport means 24 rotating body 27 transport tool 27H guide path 27G guided body 27J guide tool 27K guide path forming member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadahiko Yamane 1-81-1-10, Otori-cho, Sakai-shi, Osaka (72) Inventor Mikiyasu Yoshioka 4-165-3, Kaiyama-cho, Sakai-shi, Osaka

Claims (1)

[Claims] 1. Lifting and conveying means (8) for receiving an onion (5) excavated by a front excavation device (6) and transferring it upward.
And a pair of openable and closable conveying tools (27) for holding the onion (5) in the raised state in the lifting and conveying means (8), which are arranged side by side at a predetermined pitch on a rotating body (24) which circulates and rotates. A transport means (27I), and the pair of transport tools (2
7) In the onion harvester (T) having a guide path (27H) for guiding and closing the guided body (27G), the guide path (27H) is close to the rotating body (24). And guides the guided body (27G), and a pair of conveying tools (2
7) a guide tool (27J) for closing and operating the guide tool (2)
7J) and is provided with a guide path forming member (27K) that is elastically deformed when a stone or the like is caught between the guided body (27G) and this guide path (27H). Onion harvesting machine.