JP2831210B2 - Harvester foliage direction control mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foliage direction control mechanism for a harvester for harvesting crops such as onions.

[0002]

2. Description of the Related Art For example, in an onion digging and harvesting machine, a comb-shaped digging member is provided at the front of the body, a lifting conveyor is provided at the rear of the digging member, and the foliage is further lifted while the onion is further lifted behind. It is provided with a processing conveyor for cutting and storing.

[0003] In such a harvester, good foliage cutting,
An alignment brush is provided above the lifting conveyor and the processing conveyor so that the onion stems and leaves can be aligned in one direction so as to enable reliable transport and to drop soil.

[0004]

According to the foliage aligning brush of the prior art, it is easy to align foliage oblique to the transport direction in the transport direction, but it is lateral to the transport direction. Therefore, the aligning effect on the foliage fitted in the conveyor of the conveyor is low, and the foliage cutting may be difficult or uneven.

[0005] When onions are transferred from the lifting conveyor to the processing conveyor, the onions may be locally overlapped and received, so that the foliage overlaps to make it impossible to cut the foliage normally, or the onions are damaged or spilled. Sometimes. The present invention arranges a plurality of foliage guide rods in the width direction of the conveyor along the upper side of the processing conveyor, thereby preventing the foliage from falling down at the time of transferring the crop from the lifting conveyor, and setting the receiving position on the processing conveyor. An object of the present invention is to provide a foliage direction control mechanism of a harvester that can be dispersed.

[0006]

The concrete means for solving the problem in the present invention is to transport the crop 13 to the foliage cutting device 20 behind the lifting conveyor 15 for lifting the crop 13 harvested from the ridge 12 rearward and upward. Processing conveyor 17
And a foliage aligning means 1 in the middle of the processing conveyor 17.
In foliar direction control mechanism arranged the harvester to 8, along the upper side from the starting end of the process conveyor 17, crop
The receiving position is divided into a plurality of sections in the conveyor width direction, and
A plurality of foliage guide rods 53 that can be mounted are arranged in the conveyor width direction .

[0007]

When the onions 13 harvested from the ridges 12 are lifted to the rear and upward by the conveyor 15 and delivered to the processing conveyor 17, the onions 13 are dispersed by the foliage guide rods 53 and are placed on the processing conveyor 17 between the foliage guide rods 53. The foliage 13a hangs backward in the transport direction.

The foliage 13a, which does not hang down rearward in the transport direction and is oriented sideways, rests on the foliage guide rod 53, and due to the sliding contact resistance with the foliage guide rod 53,
It is controlled by the foliage alignment means 18 so as to face backward in the transport direction.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 3 and 4, a harvester 1 is a self-propelled work vehicle having a crawler traveling device 3 driven by an engine 2, and a digging portion 5 is provided at a front portion of a traveling body 4, and a processing portion is provided from a middle portion to a rear portion. The processing unit 6 includes a control unit 7 on the right side of the processing unit 6 and an unloading unit 8 on the rear side.

The digging part 5 is composed of a pair of left and right dividers 1.
1 and a ridge 12 disposed between the left and right dividers 11.
A comb-shaped digging member 14 for digging an onion (crop) 13 therein, a lifting conveyor 15 for lifting the onion 13 digged up by the digging member 14 rearward and upward, and an onion 13 disposed above the lifting conveyor 15 And the first foliage aligning means 16 for aligning the direction of the foliage 13a and for removing attached soil.

The processing unit 6 receives the onion 13 from the lifting conveyor 15 and transports it while holding it.
7, a second foliage aligning means 18 disposed above the processing conveyor 17, an inverting mechanism 19 for inverting and transporting the onion 13 from the upper horizontal transport section 17A to the lower horizontal transport section 17B, and a lower horizontal transport section. A foliage cutting device 20 arranged below the portion 17B, a foliage lowering device 21 for forcibly hanging down the foliage 13a of the onion 13 at the time of inversion, and an onion 1 after foliage cutting
3 for receiving the feed 3 from the processing conveyor 17
And

A cradle 25 of the container 24 of the unloading section 8 is fixed to the right side of the traveling body 4. The container receiving table 25 is located above the groove between the ridges 12, and a stay 28 to which an operation panel 26 of the control section 7 and a driver's seat 27 are attached is fixed to a front portion thereof. In FIGS. 1 to 6, the lifting conveyor 15 is disposed in a rear-upward inclined shape, and a number of horizontal rails 33 are connected between a driving sprocket 31 and a driven sprocket 32 supported by left and right side plates 30 of the body 4. A pair of left and right chains 34 are wound around the onion 13, and the onion 13 dug and scooped up from the ridge 12 by the excavating member 5 is loaded, transported upward and transferred to the processing conveyor 17.

The first and second foliage aligning means 16, 18
Is provided so as to be able to adjust the vertical position in each halfway of the lifting conveyor 15 and the processing conveyor 17, and is formed by a brush that is in sliding contact with the onion 13 being conveyed, and turns the horizontal foliage 13 a backward in the conveyance direction. To align. The processing conveyor 17 of the processing unit 6 includes a frame 3 having left and right side plates.
6, a drive sprocket 38 of a drive shaft 37 supported by
A pair of left and right chains 43 are wound around a driven sprocket 40 of the driven shaft 39 and idle sprockets 41 and 42, and a transport tool 44 is provided between the left and right chains 43 at a constant pitch.

The transporter 44 receives a ball portion of the onion 13.
A and the hugging device 44B embrace and convey, and the receiving device 44A and the hugging device 44B have a substantially symmetrical shape, and are pivotally supported so as to be rotatable in the opposite direction by a pivot 46 connected to the left and right chains 43, It is formed of a trapezoidal body 47 having a trapezoidal shape in a side view, which is pivotally supported on the pivot 46 in the longitudinal direction, and a receiving rod 48 fixed to the bent portion and the tip of the body 47.

The left and right ends of the tips of the receiving members 44A and the holding members 44B are fixed to the frame 36 by guide rails 49A,
49B, etc., open at the end of the return transport section 17C of the processing conveyor 17, and lift and transport the transport section 17D.
The onion 13 is received and closed at the start end, and is temporarily opened in the middle of the lower horizontal transport section 17B above the horizontal feed conveyor 22.

Above the processing conveyor 17, a plurality of foliage guide rods 53 are arranged in the width direction of the conveyor. The foliage guide rod 53 is formed of a round bar, a pipe, or a rod having an arcuate upper surface, and a mounting rod 54 is fixed to the rear upper part of the way. The foliage guide rod 53 has a front portion lifted at a lower front portion of the frame 36 and attached to the frame 36 below the conveyor 15 via a bracket 55, and an intermediate portion is attached to a horizontal rail 56 constituting the frame 36 via an attachment rod 54. Are linked. The rear end of the foliage guide rod 53 is a free end, but may be connected to the frame 36 via a connecting member.

Although the three foliage guide rods 53 are provided in the width direction of the conveyor, a plurality of foliage guide rods other than three may be provided, and the interval is larger than the spherical part of the onion 13 and the distance between the spherical part of the onion 13 and the foliage 13a. The dimensions are set to be sufficiently shorter than the sum of the lengths. Therefore, a plurality of foliage guys arranged in the width direction of the conveyor
The driving rod 53 extends from the starting end of the processing conveyor 17 to the upper side thereof.
Along, the onion receiving position is divided into multiple in the conveyor width direction
The onion 13 is lifted from the conveyor 15 to the conveyor 4 of the processing conveyor 17.
4, when the onion 13 is distributed in the width direction
When the onion 13 is kept horizontal and the placed onion 13 is in the horizontal direction, the foliage 13a is always placed on the foliage guide rod 53, and it is avoided that the entire length of the foliage 13a comes into contact with the receiving rod 48. Is done.

Thus, the foliage 13a is a foliage guide rod 5
3, it is lifted from the carrier 44 and given an opportunity to come into contact with the second foliage aligning means 18, and the lateral foliage 13 a is moved rearward in the transport direction by the second foliage aligning means 18. Thus, all the leaves 13a are aligned so as to face rearward in the transport direction. In addition, foliage 1
When 3a is placed on the foliage guide rod 53, the foliage 13a receives contact resistance during transportation, and the resistance also causes the foliage 13a to move backward in the transportation direction, which helps to align the foliage 13a.

A variation of the foliage guide rod is shown in FIG. 7. The foliage guide rod 53A is formed of a rod bent in an arc shape, and is provided with a receiving member 44A and a holding member 44B of each carrier 44, respectively. It is provided so as to be staggered, and a plurality of sets are arranged at intervals in the width direction of the conveyor. Also in this foliage guide rod 53A, the foliage 13a of the onion 13 received in the carrier 44 in a horizontal direction is placed and the second foliage alignment means 1 is placed.
8, the direction can be controlled, and when the onion 13 is received from the lifting conveyor 15, the onion 13 can be distributed and placed.

1 to 4 and 6, a reversing mechanism 19 is provided between the end of the upper horizontal transfer section 17A where the driven sprocket 40 is located and the start end of the lower horizontal transfer section 17B. The reversing mechanism 19 includes a cross-shaped reversing body 60 in a side view,
The driven shaft 39 is integrally rotatably fixed to the driven shaft 39.
The reversing body 60 is displaced by approximately 90 degrees on the outer periphery of the driven shaft 39 to fix the band-shaped sandwiching plate 62, and a push plate 63 is bolted to a pair of sandwiching plates 62 at opposing positions. The outer end of the plate 63 is bent in a U-shape so as to extend rearward in the rotation direction to form a deeply pressed portion 63A. Note that the push plate 63 may be directly fixed to the driven shaft 39 by omitting the pair of sandwich plates 62.

The pushing plate 63 having the deep pushing portion 63A and the sandwiching plate 62 on the leading side in the rotation direction abut on the outer surface of the shape retaining body 47, and around the driven shaft 39 while sandwiching a set of conveying tools 44. The carrier 44 is turned on.
Can be reversed from the upward posture to the downward posture while holding the. The inverted transport device 44 is closed so that the holding device 44B is guided by the lower guide rails 64A and 64B, and the receiving device 44A is pressed by the pressing portion 63A to hold the onion 13 in cooperation with the holding device 44B, that is, cooperatively. The posture is maintained, and the conveyance tool 44 is not opened until the conveyance tool 44 reaches the horizontal feeding conveyor 22.

The foliage cutting device 20 is of a reciprocating type in which a movable blade 66 is reciprocated right and left with respect to a fixed blade 65 fixed to the frame 36.
Is cut leaving a certain length. The cut onion 13 is dropped when it comes on the horizontal conveyor 22,
Container 2 on cradle 25 by traverse conveyor 22
4 is harvested.

The foliage lowering device 21 is disposed behind the foliage cutting device 20 so that the foliage 13a of the onion 13 which has been inverted by the reversing mechanism 19 is supplied to the foliage cutting device 20 in a correct hanging posture. Posture correction. In the foliage lowering device 21, a crank arm 68 is fixed to a rotating shaft 67 rotatably supported by a frame 36, and a comb tooth 69 is rotatably supported on the crank arm 68. The pivot arm 70 pivotally connected to the frame 36 pivotally supports the frame 36 via a pivot shaft 71.

The rotary shaft 67 is capable of transmitting power from the engine 2 through a chain transmission means 72. The rotation of the crank arm 68 causes the swing body 69 to swing.
The tip rotates while drawing a locus 73 shown in FIGS.
To the foliage cutting device 20 side. Note that the present invention is not limited to the above-described embodiment, and can be variously modified. For example, the rear end of the foliage guide rod 53 may extend to the rear of the second foliage aligning means 18, and the rear end may be connected to the second foliage aligning means 18 or may be arranged at both ends in the width direction of the processing conveyor 17. Good, and also applicable to crops such as carrot, garlic, turnip, radish, etc., in addition to onions.

[0025]

According to the present invention described in detail above , the crop receiving position extends from the starting end of the processing conveyor 17 to the upper side thereof.
Is divided into a plurality of sections in the conveyor width direction and foliage can be received.
Foliage guide rods 53 arranged in the conveyor width direction
Therefore, the foliage 13a can be prevented from falling down when the crop 13 is delivered from the lifting conveyor 15, and the foliage 13a can be surely aligned rearward in the transport direction by the foliage aligning means 18. In addition, the processing conveyor 17 for the crop 13 Can be dispersed, and the overlapping of the foliage 13a and the damage of the crop 13 can be prevented.

[Brief description of the drawings]

FIG. 1 is a sectional side view showing an embodiment of the present invention.

FIG. 2 is a sectional side view of a rear part of a processing unit.

FIG. 3 is a side view showing the entire harvester.

FIG. 4 is a plan view showing the entire harvester.

FIG. 5 is a plan view of a processing conveyor.

FIG. 6 is a perspective view of a reversing mechanism and a foliage cutting device.

FIG. 7 is a perspective view showing a modification of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Harvester 5 Digging part 6 Processing part 13 Onion (crop) 13a Foliage 15 Lifting conveyor 17 Processing conveyor 18 Second foliage aligning means 19 Inversion mechanism 20 Foliage cutting device 21 Foliage lowering device 53 Foliage guide rod

Claims (1)

(57) [Claims] 1. A processing conveyor (17) for transporting a crop (13) to a foliage cutting device (20) is provided behind a lifting conveyor (15) for lifting a crop (13) harvested from a ridge (12) rearward and upward. Provided, this processing conveyor (17)
In the foliage direction control mechanism of the harvester in which the foliage aligning means (18) is arranged in the middle of the processing , the crop receiving position is divided into a plurality of sections in the width direction of the conveyor from the starting end of the processing conveyor (17) to the upper side thereof.
The foliage guide rod (53), which can receive foliage on the conveyor
A foliage direction control mechanism for a harvester, wherein a plurality of the foliage directions are arranged in a width direction .