JP2970982B2 - Agricultural harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for extracting crops such as root crops from a field, harvesting the crops, transporting the crops to the rear of the machine and cutting the foliage from the roots, even if the roots are large or small. The present invention relates to a self-propelled agricultural product harvester that can be guided to a cutting device.

[0002]

2. Description of the Related Art Conventionally, agricultural products vegetated in a field have been sandwiched between a pair of left and right endless belts, pulled out from the field and harvested, and the harvested agricultural products have been lifted toward the rear of the aircraft. A harvester equipped with a harvesting / conveying belt to be conveyed and provided with a cutting device for cutting a foliage portion from a root portion of a produce at a predetermined position below a conveying route of the harvesting / conveying band has been proposed.

[0003]

In the conventional agricultural harvester as described above, the agricultural products harvested from the field are:
The size and shape are large and small, and therefore, when the agricultural product sandwiched and conveyed by the pair of left and right endless belts is guided to the cutting processing device, the posture is not fixed, and the foliage from the root is accurately determined. Could not be cut. The present invention has been made to solve the above problems.

[0004]

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a traveling machine, wherein a crop vegetated in a field is picked up by a pair of left and right endless belts, pulled out from the field, and harvested. In the harvester equipped with the harvesting / transporting belts 6, 6 for transporting the harvested agricultural products while lifting them toward the rear of the machine, below the transporting path of the harvesting / transporting bands 6, 6:
A cutting device 26 for cutting the foliage from the root of the agricultural product at a predetermined position is provided. At the front side of the cutting device 26, telescopic links 33, at both ends of a pair of left and right fixing members 32 fixed to the body side, respectively. 33, a guide plate 34 is pivotally supported on the other ends of the telescopic links 33, 33, and a resin plate 34a is attached to the lower surface of the guide plate 34, so that the telescopic link 3
A pair of support holes 34b, 34b provided in the guide plate 34 by urging the guide plate 34 by extending a coil spring 35 between
A pair of sliding rods 37, 37 each having one end fixed to the support arm 36 with the pin portions 36 a, 36 a of the support arm 36 loosely fitted therein.
Is provided with a pair of left and right guides 31 which are slidably fitted to the fixed member 32 at the other end.

[0005]

With the above arrangement, the agricultural product harvester of the present invention is provided with a pair of left and right guides whose paths are freely expandable and contractable in accordance with the size and shape of the agricultural product at the front side of the cutting device. A guide body expands and contracts the passage according to the size and shape of the object, and the crop is pinched in a substantially constant posture state regardless of its size and guided to the cutting processing device to perform cutting processing with high accuracy.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. 3 to 5, reference numeral 1 denotes an agricultural harvester (applied to a ginseng harvester in this embodiment).
This agricultural product harvester 1 is equipped with crawlers 2 and 2 which form a left-right pair and enable super turning. An engine 3 is mounted in the center of the body between the crawlers 2 and 2, and a hydraulic unit 4 driven by the engine 3 is mounted in the vicinity of the engine. A transmission 5 is provided between the crawlers 2 and 2 at a position rearward of the engine 3 so that the crawlers 2 and 2 can be shifted and steered. Further, a pair of left and right for transporting while picking and pulling the foliage S of the carrot C vegetated in the field from the lower front near the one side of the fuselage to the rear of the fuselage through the upper of the fuselage, and lifts and lifts backward. The pull-out conveyor belts 6, 6 are supported by a support frame 7 in two stages, upper and lower.

[0007] Below the front portions of the pull-out conveyor belts 6, 6,
A digging blade 8 for digging below the ginseng C in the field is provided,
Also, on the upper side of the tip rotating portion of the pull-out conveyor belts 6, 6,
A scraping belt 9, 9 for scraping the foliage S of the carrot C is provided coaxially, and a large number of scraping projections 9a, 9a,. A foliage processing device 10 for cutting the foliage S from a root R of a carrot C at a predetermined position is provided below the rear end side of the pulling transport belts 6 and 6, and the foliage S is cut below the foliage processing device 10. A container 11 for accommodating the root R that is dropped after being placed is placed on a container placing table 12 and arranged.

The pull-out conveyor belts 6, 6 pivotally support the rear portion of the support frame 7 at the upper ends of the support frames 14, 14 erected from the rear horizontal frame 13 of the body so as to be rotatable up and down around a fulcrum 14a. The front portion of the support frame 7 is supported via a hydraulic cylinder 16 with respect to a front horizontal frame 15 of the machine body, and the front end side is vertically moved by the expansion and contraction operation of the hydraulic cylinder 16. Further, the pull-out transport belts 6, 6 move the support frames 14, 14 in the left-right direction, that is, in the width direction of the machine body, with respect to the rear horizontal frame 13, and the base of the hydraulic cylinder 16 with respect to the front horizontal frame 15. It is possible.

The bases of the foliage discharge belts 17, 17 are provided coaxially at the rear end rotating portions of the pull-out conveyor belts 6, 6 and extend to the rear end side of the machine body, and the root R is cut by the foliage processing device 10. The foliage portion S is pinched and transported and discharged to the rear of the machine body. Below the foliage discharge belts 17, 17, a foliage discharge cover 18 for preventing the discharged foliage S from dropping into the container 11 is provided.
A control section 19, a step 20, a control seat 21 and the like are provided on the side of the fuselage opposite to the side of the pull-out and transfer belts 6, 6.

[0010] Then, the pull-out conveying belts 6, 6 include:
Power is transmitted to one of them via a transmission system 22, and the rotation shaft 23 and the transmission unit 24 are
, The power is transmitted to the other pulling and conveying belt 6 so that the pulling and conveying belts 6 and 6 rotate inward each other. In addition, power is transmitted coaxially from the pull-out conveyor belts 6 and 6 to the foliage discharge belts 17 and 17, and power is also transmitted to the foliage processing apparatus 10 by a transmission system (not shown). The foliage processing apparatus 10 includes a pair of cutting positioning rolls 25, 25 that rotate inward together.
And the disk-shaped cutter blade 26, the root portion R of the carrot C conveyed by the pull-out conveyance belts 6, 6 is positioned at the convex portion, and the foliage S is cut from a predetermined position by the cutter blade 26. Like that.

On the other hand, the digging and raising blade 8 is supported by the lower arm 27 and the upper link 28 so as to be vertically movable with respect to the machine body, and is adjusted vertically by the expansion and contraction operation of a hydraulic cylinder 29 inserted between the lower arm 27 and the machine body. Has become. A vibration crank mechanism 30 is connected to the upper link 28 to reciprocate (vibrate) the digging and raising blade 8 back and forth around a support portion with the lower arm 27.
The ginseng C vegetated in the field is dug up below the root R of the ginseng so that the ginseng C can be pulled out by the pulling-out conveyor belts 6, 6 with a small resistance.

The root portion R of the carrot C, which is conveyed while the foliage portion S is pinched by the pull-out conveyance belts 6, 6,
The guide body 31 shown in FIG. 1 and FIG. 2 is provided in front of the cutting positioning rolls 25, 25 of the foliage processing apparatus 10 during the moving process. Have been. The guide body 31 has one end of each of extendable links 33, 33 pivotally attached to both ends of a pair of left and right fixing members 32 fixed to the body side, and a guide plate 34 pivotally attached to the other end of the extendable links 33, 33. Support. A resin plate 34a is attached to the lower surface of the guide plate 34, that is, the surface in contact with the root R of the carrot C. A coil spring 35 is stretched between the telescopic links 33 and 33 to urge the guide plate 34. Pin portions 36a, 36a of the support arm 36 are loosely fitted in a pair of support holes 34b, 34b provided in the guide plate 34, and a pair of sliding rods 3 having one ends fixed to the support arm 36.
The other end of each of the members 7 and 37 is slidably fitted into the fixing member 32. Then, the path of the agricultural product (carrot C) passing between the guide plates 34, 34 is freely expandable and contractable in accordance with the size and shape.

As shown in FIGS. 6 and 7, the roots R of the carrots C, which are conveyed while the foliage S is nipped by the pull-out conveyor belts 6, 6, are guided to the passage between the guide plates 34, 34. A pair of left and right sponge rollers 38, 38 are provided on the lower side of the pull-out conveyance belts 6, 6 just before the transfer, so that the passage can be freely expanded and contracted according to the size and shape of the carrot C.
The sponge rollers 38, 38 are supported by support arms 38a, respectively, and are urged so that the sponge rollers 38, 38 approach each other. And when the carrot C which the foliage part S is pinched and conveyed overlaps,
These are arranged one by one between the sponge rollers 38, 38 so that the root R of the ginseng C is fed one by one into the passage between the guide plates 34, 34.

Further, as shown in FIGS. 1 and 2, the cutting positioning rolls 25, 25 also include sponge rollers at the portions for holding the root R of the ginseng C, and are supported by support frames 25a, 25a, respectively. Thus, the passage between the cutting positioning rolls 25, 25 is urged to expand and contract according to the size and shape of the agricultural product (carrot C) passing therethrough. Cutting positioning rolls 25, 25 and cutter blade 2
The vertical gap s and the front-rear spacing of 6 can be adjusted.
Then, the cutting height of the foliage S cut from the root R of the ginseng C can be adjusted. By this adjustment, the cutting height can be adjusted to a desired cutting height in accordance with the type, regionality, marketability, etc. of root vegetables in addition to ginseng. We can cut it.

An agricultural (carrot) harvester 1 having such a configuration.
First, the pull-out conveyor belts 6, 6 are moved to the appropriate positions by the lateral movement of the support frames 14, 14 with respect to the rear lateral frame 13 and the lateral movement of the hydraulic cylinder 16 with respect to the front lateral frame 15 in accordance with the cropping system. Fix it. In this embodiment, as shown in FIG. 3, two rows of ginseng C vegetated in a field are simultaneously harvested. The operator sits on the control seat 21 while driving the pull-out conveyor belts 6, 6, the excavating blade 8, the scraping belts 9, 9, the foliage processing device 10, and the foliage discharge belts 17, 17, respectively. By operating 19, the aircraft performs harvesting work while traveling by the crawlers 2 and 2.

As shown in FIG. 4, the row of ginseng C vegetated in the field is dug up by the excavating blade 8 being vibrated by the vibrating crank mechanism 30 and the upper link 28 as shown in FIG. The foliage S of the carrot C is scraped by the scraping belts 9, 9. At this time, the protrusions 9a, 9a,... Are provided on the scraping belts 9, 9 for scraping, so that the scraping property is improved.

The foliage S of the ginseng C, which has been scraped by the scraping belts 9, 9, is sandwiched between the starting ends of the pull-out conveyor belts 6, 6, and is lightly pulled out of the field and lifted toward the rear of the machine. Conveyed. And the root R of carrot C
When the roller reaches the position of the sponge rollers 38, 38, the roller 3
Roots of ginseng C are rearranged one by one between 8,38
Are fed one by one into the passage between the guide plates 34 of the guide body 31. The ginseng C passing between the guide plates 34, 34 expands and contracts according to the size and shape of the ginseng, and reliably supplies the ginseng C to the foliage processing apparatus 10. And it is guided so that it may be drawn in between the cutting positioning rolls 25 and 25 rotating inside mutually, and the upper edge part of the root R is positioned between the convex parts of the cutting positioning rolls 25 and 25. In this state, the foliage portion S is cut at a predetermined position by the cutter blade 26, the root portion R falls and is housed in the container 11, and the foliage portion S remaining on the pull-out transport belts 6, 6 is further transported to discharge the foliage. It is discharged to the field behind the fuselage via the belts 17,17.

Further, since the gap s between the cutting positioning rolls 25, 25 of the foliage processing apparatus 10 and the cutter blade 26 is adjustable, the cutting height of the foliage S cut from the root R of the carrot C is reduced. You can choose freely. This adjustment allows cutting to a desired cutting height in accordance with the type, regionality, marketability, and the like of root vegetables in addition to ginseng.

[0019]

As described above, according to the agricultural product harvester of the present invention, the cutting processing device 26 for cutting the foliage from the root of the agricultural product at a predetermined position is provided below the transport path of the harvesting / transporting zones 6, 6. At the front side of the cutting device 26, one ends of telescopic links 33, 33 are respectively pivotally connected to both ends of a pair of left and right fixing members 32 fixed to the body side, and at the other ends of the telescopic links 33, 33. The guide plate 34 is pivotally supported, and a resin plate 34a is attached to the lower surface of the guide plate 34 so that the telescopic link 3
A pair of support holes 34b, 34b provided in the guide plate 34 by urging the guide plate 34 by extending a coil spring 35 between
A pair of sliding rods 37, 37 each having one end fixed to the support arm 36 with the pin portions 36 a, 36 a of the support arm 36 loosely fitted therein.
Is provided with a pair of left and right guides 31 slidably fitted to the fixed member 32 on the other end side.
Even if there is a change (large or small) in the size and shape of the agricultural product conveyed by 6, the guide body 31 expands and contracts in accordance with the change, sandwiches the agricultural product, and sends it to the cutting processing device 26,
The cutting accuracy in the cutting processing device 26 can be improved.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a guide according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an overall plan view of the agricultural product harvester according to the present invention.

FIG. 4 is a side view of the same.

FIG. 5 is a rear view of the same.

FIG. 6 is a side view of a sponge roll portion.

FIG. 7 is a bottom view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Agricultural product (carrot) harvester 2 Crawler 3 Engine 4 Hydraulic unit 5 Transmission 6 Extraction conveyance belt 7 Support frame 8 Digging blade 9 Scraping belt 10 Foliage treatment device 11 Container 12 Container mounting table 13 Rear horizontal frame 14a Supporting point 14 Support frame 15 Front horizontal frame 16, 29 Hydraulic cylinder 17 Foliage discharge belt 18 Foliage discharge cover 19 Steering unit 20 Step 21 Steering seat 22 Transmission system 23 Rotating shaft 24 Transmission unit 25 Cutting positioning roll 25a Support frame 26 Cutter blade 27 Lower arm 28 Upper link Reference Signs List 30 Vibration crank mechanism 31 Guide 32 Fixing member 33 Telescopic link 34 Guide plate 34a Resin plate 34b Support hole 35 Coil spring 36 Support arm 36a Pin portion 37 Slide rod 38 Sponge low 38a supporting arm C carrot S foliage R roots

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-70225 (JP, U) JP-A-7-5316 (JP, U) (58) Fields surveyed (Int.Cl. ⁶ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims] An agricultural product vegetated in a field is picked up from a field by a pair of left and right endless belts, and is harvested by a traveling machine body. The harvested agricultural product is transported while being lifted toward the rear of the machine body. in harvester equipped harvest and transport band (6, 6), the transport path below the harvesting and transportation band (6,6), cutting apparatus for cutting the foliage at a predetermined position from the root of the agricultural
(26) is provided, and in front of the cutting processing device (26) ,
Both ends of a pair of left and right fixing members (32) fixed to the fuselage side
Ends of the telescopic links (33, 33)
And a guide plate (34) at the other end of the telescopic link (33, 33).
And a resin plate (3) on the lower surface of the guide plate (34).
4a) and a coil between the telescopic links (33, 33).
A spring (35) is stretched to urge the guide plate (34) to guide
A pair of support holes (34b, 34b) provided in the plate (34)
The pin portion (36a, 36a) of the support arm (36) is loosely fitted.
And a pair of sliding rods having one end fixed to the support arm (36).
The other end of (37, 37) slides against the fixing member (32).
An agricultural harvester comprising a pair of left and right guides (31) movably inserted .