JPH0795805A - Crop harvester - Google Patents

Abstract

PURPOSE:To provide a crop harvester in which a cutter for cutting off the stem and leaves from the root is provided below the route for conveying harvested crops and a specific guide is provided in front of the cutter whereby the accuracy of the cutting operations is improved, even when the roots widely varies in their sizes. CONSTITUTION:A cutting unit 10 is provided below the route for conveying the harvested crops so that the stem and leaves of a crop such as carrot are cut off from the root on a certain point, and a couple of guides 31 which can freely expand the width of the route depending on the size and shape of a harvested crop is provided before the cutting unit 10 so that the guides 31 are set respectively rotatably to each one end of the flexible lines 33 extending to both ends of a couple of the fixing parts 32, while the other ends of the flexible links 33 are rotatably set to the guide plate 34 a provided under the guide plate 34, namely on the face contacting with the roots. A coil spring 35 is set between the flexible links 33 to energize the guide plate 34 and the pins of the supporting arms 36 are inserted into a couple of supporting holes bored on the guide plate 34 and the one ends of a couple of swinging arms 37 are slidably inserted into the fixing parts 32 while the other ends thereof are fixed to the support arm 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention, when an agricultural product such as root vegetables is extracted from a field and harvested, and is conveyed to the rear of the machine to cut the stems and leaves from the root, the roots should be properly arranged regardless of their size. The present invention relates to a self-propelled agricultural product harvester that can be guided to a cutting processing device.

[0002]

2. Description of the Related Art Conventionally, an agricultural product vegetated in a field on a traveling machine is sandwiched by a pair of left and right endless bands and pulled out from the field to be harvested, while the harvested agricultural product is lifted toward the rear of the machine. There has been proposed a harvesting machine equipped with a harvesting / transporting zone for transporting, and provided with a cutting device below the transporting route of the harvesting / transporting zone, which cuts the stems and leaves from the root of the agricultural product at a predetermined position.

[0003]

In the conventional agricultural product harvesting machine as described above, the agricultural products harvested from the field are
The size and shape are various, so when the agricultural products that are sandwiched and conveyed by a pair of left and right endless belts are guided to the cutting device, their postures are not constant and the stems and leaves are accurately measured. I couldn't disconnect. The present invention has been made for the purpose of solving the above problems.

[0004]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a traveling machine body with agricultural products vegetated in a field, which is sandwiched by a pair of left and right endless bands and pulled out from the field to be harvested. In a harvester equipped with a harvesting / transporting zone that transports the harvested agricultural products while hoisting them towards the rear of the machine, cut the foliage from the root of the agricultural product at a predetermined position below the transporting route of the harvesting / transporting zone. Equipped with a cutting device,
It is characterized in that a pair of left and right guide bodies whose passages can be expanded and contracted according to the size and shape of the agricultural product are provided on the front side of the cutting apparatus.

[0005]

With the above construction, the agricultural product harvesting machine of the present invention is provided with a pair of left and right guide bodies in which the passage can be expanded and contracted according to the size and shape of the agricultural product in front of the cutting device. The guide body expands and contracts the passage according to the size and shape of the object, holds the harvested product in a substantially constant posture regardless of its size, guides it to the cutting processing device, and performs the cutting process 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 is an agricultural product harvesting machine (in this embodiment, it is applied to a carrot harvesting machine).
Then, this agricultural product harvesting machine 1 is equipped with crawlers 2 and 2 which form a pair of right and left and enable super-spindle turning. An engine 3 is mounted in the center of the machine body between the crawlers 2 and 2, and a hydraulic unit 4 driven by the engine 3 is mounted in the vicinity thereof. A transmission 5 is provided at a rear position of the engine 3 between the crawlers 2 and 2 so that the crawlers 2 and 2 are driven to change speed and steer. In addition, a pair of left and right sides that conveys while squeezing and pulling out the foliage part S of the carrot C vegetated in the field from the lower front near one side of the airframe to the rear part of the airframe, passing through the foliage of the carrot C vegetated in the field The pull-out conveyance belts 6 and 6 are supported by the support frame 7 in two upper and lower stages.

Below the front of the pull-out conveyor belts 6 and 6,
Providing a digging blade 8 for digging under the carrot C in the field,
Further, on the upper side of the tip rotation part of the pull-out conveyance belts 6, 6,
Scraping belts 9 and 9 for scraping the foliage S of the carrot C are provided coaxially, and a large number of scraping protrusions 9a, 9a ... Are provided on the outer peripheral portions of both the scraping belts 9. A foliage processing device 10 for cutting the foliage S from the root R of the carrot C at a predetermined position is provided below the transportation rear ends of the pull-out transport belts 6, 6, and the foliage S is cut below the foliage treatment device 10. The container 11 that accommodates the root portion R that is dropped due to being placed is placed on the container placing table 12 and arranged.

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

The basal portions of the foliage discharge belts 17, 17 are coaxially provided on the rear end rotating portions of the pull-out conveyor belts 6, 6 to extend to the rear end side of the machine body, and the root portion R is cut by the foliage processing device 10. The stalks and leaves S are sandwiched and conveyed and discharged to the rear of the machine body. Below the foliage discharge belts 17, 17, a foliage discharge cover 18 is provided to prevent the discharged foliage portion S from falling into the container 11.
A control section 19, a step 20, a control seat 21 and the like are provided on the side of the machine body opposite to the pull-out conveyor belts 6 and 6.

The pull-out conveyor belts 6 and 6 include
Power is transmitted to one of them via a transmission system 22, and the pulling-out conveyor belt 6 from this one pulling shaft 23 to a transmission unit 24.
The power is transmitted to the other pull-out conveyance belt 6 via the so that the pull-out conveyance belts 6 and 6 rotate inward relative to each other. Further, power is coaxially transmitted from the pull-out conveyor belts 6 and 6 to the foliage discharge belts 17 and 17, and is also transmitted to the foliage processing device 10 by a transmission system (not shown). The foliage processing device 10 includes a pair of cutting and positioning rolls 25, 25 that rotate inward together.
And the disc-shaped cutter blade 26, the root portion R of the carrot C conveyed by the pull-out conveyor belts 6, 6 is positioned by the convex portion, and the forage portion S is cut from a predetermined position by the cutter blade 26. I am trying.

On the other hand, the excavation 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 vertically adjusted by the expansion and contraction operation of the hydraulic cylinder 29 interposed between the lower arm 27 and the machine body. Has become. Further, a vibration crank mechanism 30 is connected to the upper link 28, and the excavating blade 8 is reciprocally moved (vibrated) back and forth around a support portion with the lower arm 27.
The lower part of the root R of the carrot C vegetated in the field is dug up to pull out the carrot C with the pull-out transport belts 6 and 6 with a small resistance.

The root portion R of the carrot C, which is conveyed while the foliage S is sandwiched between the pull-out conveyor belts 6 and 6, is
It is designed to be automatically introduced into the foliage processing apparatus 10 during the movement process, but the guide body 31 shown in FIGS. 1 and 2 is provided in front of the cutting and positioning rolls 25, 25 of the foliage processing apparatus 10. Has been. The guide body 31 has one end of the expansion links 33, 33 pivotally attached to both ends of a pair of left and right fixing members 32 fixed to the machine body, and a guide plate 34 pivots at the other ends of the extension links 33, 33. I support you. 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 expandable links 33, 33 and urges the guide plate 34. The pin portions 36a, 36a of the support arm 36 are loosely fitted in the pair of support holes 34b, 34b provided in the guide plate 34, and the pair of sliding rods 3 each having one end fixed to the support arm 36.
The other end side of 7, 37 is slidably fitted into the fixed member 32. The passage can be freely expanded or contracted according to the size and shape of the agricultural product (carrot C) passing between the guide plates 34, 34.

Further, as shown in FIGS. 6 and 7, the root R of the carrot C, which is conveyed while the foliage S is clamped by the pull-out conveyor belts 6, 6, is guided to the passage between the guide plates 34, 34. A pair of left and right sponge rollers 38, 38 whose paths can be freely expanded and contracted according to the size and shape of the carrot C are provided below the pull-out conveyor belts 6, 6 immediately before being cut.
The sponge rollers 38, 38 are respectively supported by support arms 38a and are urged so that the sponge rollers 38, 38 approach each other. Then, when the carrots C that are conveyed while being sandwiched by the foliage portions S overlap,
These are arranged one by one between the sponge rollers 38, 38 so that the roots R of the carrot C are fed one by one into the passage between the guide plates 34, 34.

Further, as shown in FIGS. 1 and 2, in the cutting and positioning rolls 25, 25 as well, the portion that holds the root R of the carrot C is composed of sponge rollers, which are supported by support frames 25a, 25a, respectively. The passage between the cutting and 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-back spacing of 6 are adjustable.
Then, the cutting height of the foliage S cut from the root R of the carrot C can be adjusted, and by this adjustment, in addition to the ginseng, the cutting height can be adjusted to a desired cutting height according to the type, regionality, marketability, etc. of root vegetables. I am able to disconnect.

Agricultural product (carrot) harvester 1 having such a configuration
First, in accordance with the cropping system, the pull-out conveyor belts 6, 6 are moved to appropriate positions by lateral movement of the support frames 14, 14 with respect to the rear lateral frame 13 and lateral movement of the hydraulic cylinder 16 with respect to the front lateral frame 15. Fix it. In this embodiment, as shown in FIG. 3, two rows of ginseng C vegetated in the field are simultaneously harvested. Then, with the pull-out conveyor belts 6 and 6, the excavating blades 8, the scraping belts 9 and 9, the foliage processing device 10, and the foliage discharge belts 17 and 17, respectively, being driven, the worker sits on the control seat 21 and operates the control section. 19 is operated and the machine performs harvesting while traveling by the crawlers 2 and 2.

As shown in FIG. 4, the lower part of the two rows of ginseng row C cultivated in the field is excavated by the excavating blade 8 which is 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, since the scraping belts 9 and 9 are provided with the projections 9a, 9a ... For scraping, the scraping property is improved.

The foliage portion S of the carrot C scraped by the scraping belts 9 and 9 is sandwiched between the starting ends of the pulling and carrying belts 6 and 6, and is lightly pulled out from the field and lifted up toward the rear of the machine body. Be transported. And the root R of carrot C
Reaches the sponge roller 38, 38 position, the roller 3
The roots of carrot C are rearranged one by one between 8 and 38
Are fed one by one into the passage between the guide plates 34, 34 of the guide body 31. In the carrot C passing between the guide plates 34, 34, the guide plates 34, 34 expand or contract according to the size and shape thereof, and the carrot C is reliably held and supplied to the foliage processing apparatus 10. Then, the cutting positioning rolls 25, 25 rotating inward relative to each other are guided so as to be drawn, and the upper edge of the root R is positioned between the convex portions of the cutting positioning rolls 25, 25. In this state, the foliage S is cut at a predetermined position by the cutter blade 26, the root R falls and is housed in the container 11, and the foliage S remaining on the pull-out conveyor belts 6, 6 is further conveyed and foliage discharged. It is discharged to the field behind the machine via the belts 17, 17.

Further, since the gap s between the cutting positioning rolls 25, 25 and the cutter blade 26 of the foliage processing apparatus 10 can be adjusted, the cutting height of the foliage S cut from the root R of the carrot C can be adjusted. You can choose freely. By this adjustment, it is possible to cut to a desired cutting height according to the type of carrot, root vegetables, regional characteristics, marketability and the like.

[0019]

As described above, according to the agricultural product harvesting machine of the present invention, the cutting processing device for cutting the foliage portion from the root portion of the agricultural product at a predetermined position is provided below the transportation route of the harvesting / transporting zone, and this cutting is performed. A pair of left and right guides that can expand and contract the passage according to the size and shape of the produce is installed on the front side of the processing device, so that the size and shape of the produce conveyed by the harvesting / conveyance zone can be changed (large or small). ), The guide body expands and contracts according to the change, and the agricultural product is sandwiched and sent to the cutting processing device, and the cutting accuracy in the cutting processing device can be improved.

[Brief description of drawings]

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

FIG. 2 is a side view of the same.

FIG. 3 is an overall plan view of an 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]

 1 Agricultural Product (Carrot) Harvester 2 Crawler 3 Engine 4 Hydraulic Unit 5 Transmission 6 Extraction Conveyor Belt 7 Support Frame 8 Digging Blade 9 Scraping Belt 10 Stem and Leaf Processor 11 Container 12 Container Placement Table 13 Rear Side Frame 14a Support Frame 14 Support Frame 15 Front horizontal frame 16,29 Hydraulic cylinder 17 Stem-and-leaves belt 18 Stem-leaf discharge cover 19 Steering section 20 Step 21 Steering seat 22 Transmission system 23 Rotating shaft 24 Transmission section 25 Cutting positioning roll 25a Support frame 26 Cutter blade 27 Lower arm 28 Upper link 28 30 Vibration Crank Mechanism 31 Guide Body 32 Fixing Member 33 Telescopic Link 34 Guide Plate 34a Resin Plate 34b Support Hole 35 Coil Spring 36 Support Arm 36a Pin Part 37 Sliding Rod 38 Sponge Law 38a supporting arm C carrot S foliage R roots

Claims (1)

[Claims] 1. An agricultural product vegetated in a field is clamped by a pair of left and right endless bands on a traveling machine body, pulled out from the field and harvested, and the harvested agricultural product is conveyed while being lifted toward the rear of the machine body. In a harvester equipped with a harvesting / transporting zone, below the transporting route of the harvesting / transporting zone, provided is a cutting processing device for cutting the stems and leaves from the root of the agricultural product at a predetermined position. An agricultural product harvesting machine, which is provided with a pair of left and right guide bodies whose passages can be freely expanded and contracted according to their size and shape.