JPH08252016A - Vegetable harvester - Google Patents

Abstract

PURPOSE: To make the constitution of a driving part for vibrating a digging up part arranged in the front part of a vegetable harvester compact. CONSTITUTION: This vegetable harvester arranging a digging up blade 8 for digging up the root part of a vegetable in the front part of a travelling part and a vegetable pretreating part capable of conveying a leaf part pinched by a leaf part conveying belts 2, 5 to a working table in the rear part, and the vibrating digging up blade 8 is arranged in the front end of the pretreating part, a conveyer 3 conveying the root part rearward by supporting it from below is arranged, and the driving part of the vibrating digging up blade 8 is arranged in the lower position than that of the leaf conveying belts 2, 5 and in the circulating space of the root supporting conveyer 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive structure of a digging section of a vegetable harvester for mechanically harvesting leaf vegetables such as spinach and shungiku, root vegetables such as radish and carrot, and vegetables such as onion.

[0002]

2. Description of the Related Art Conventionally, a pretreatment unit is arranged at the front of a traveling unit, and the pretreatment unit is provided with a conveying device for conveying from the front end to the rear, and a digging portion is provided at the lower front of the conveying device. The digging section is located below the roots of the vegetables and floated by vibrating them, and the leaves are clamped by a conveyor belt or placed on a conveyor and conveyed backward to harvest the vegetables. The technique for doing so is known. For example, the actual Kaisho 60-
No. 168321, No. 60-177725, No. 56-66215, and Japanese Patent Laid-Open No. 2-4.
This is like the technique described in Japanese Patent Publication No. 9507.

[0003]

In the conventional vegetable harvesting machine, the excavation portion is vibrated so that it is lifted from the bottom of the root and floated. In order to drive the excavation portion, it is driven above the excavation portion. A shaft is arranged and the drive shaft is driven from the machine side, or the drive shaft is projected laterally from the support portion of the excavating blade and power is transmitted to the drive shaft to drive the excavating blade. However, the drive structure of the excavation part is large and complicated, and the width of the drive shaft becomes wider due to the drive shaft projecting to the side, which makes it easier to hit vegetables and other obstacles on the side part. If the drive unit was located above the excavation unit, the front end was difficult to see, and it was difficult to check the alignment and the transport state. Therefore, the present invention intends to make the configuration of the drive unit for vibrating the excavation unit compact.

[0004]

The problem to be solved by the present invention is as described above. Next, as a means for solving the problem, the digging blade 8 is arranged at the front part of the traveling section B. Is a vegetable harvester in which a pretreatment section A for digging the roots of vegetables and sandwiching the leaves by a leaf conveyance belt and conveying them to a workbench G at the rear is arranged, and vibration digging is performed at the front end of the pretreatment section A. A blade 8 is arranged, and a conveyor 3 for supporting the root part from below and conveying it backward is arranged at the rear part thereof, and the driving part of the vibrating excavating blade 8 is located below the leaf part conveyor belt, and the root part supporting conveyor is provided. It is arranged in the orbiting space of. Power is transmitted from the drive shaft of the root support conveyor to the transmission shaft 60 that drives the vibration excavating blade 8 via the chain transmission mechanism, and the chain transmission mechanism is circulated in the root support conveyor and within the circle. It is arranged within the width.

[0005]

Next, the operation will be described. Vegetable Y is a sprouting board 9 for each line
・ It is divided by 9 and cut into a trapezoidal shape in cross section by the coulter at the lower part, and the vibration excavating blade 8 at the rear part loosens and raises the soil block. The vibrating digging blade 8 is supported by the side frames 57 on both sides thereof,
The side frame 57 is extended rearward, and is driven by swinging of the vibration link 13 via a parallel link at a side portion of the root supporting conveyor 3 to cause the vibration link 13 to move.
Is driven by the rotation of a transmission shaft 60 that is laid horizontally in the circulation space of the root support conveyor 3, and the transmission shaft 60 is driven by a drive shaft 54 that drives the root support conveyor 3 via a chain, a sprocket, or the like. Power is transmitted.

[0006]

EXAMPLES Next, examples will be described. 1 is an overall side view of the vegetable harvester of the present invention, FIG. 2 is an overall plan view of the vegetable harvester, FIG. 3 is an overall front view of the vegetable harvester, and FIG. 5 is an overall side view of the pretreatment section A, FIG. 6 is a plan view of the rear section of the pretreatment section A, FIG. 7 is a plan view of the front section of the pretreatment section A, and FIG. 8 is a side view of the same. Is.

1, 2, and 3, the overall structure of the vegetable harvester for harvesting non-heading leafy vegetables will be described. Two front wheels 27 and 27 and two rear wheels are mounted on the aircraft frame F.
The 8.28 is pivotally supported to form a four-wheeled traveling section B.
The machine body frame F includes left and right wheel frames 30 and 30 and a work frame 43. A work table G is fixedly mounted on the upper surfaces of the left and right work frames 43, and a vegetable storage box 26 is placed. The work frame 43 and the wheel frame 3
Vertical frames 34 and 36 are erected on both front and rear sides of the 0.30, and seat support frames 35 project upward from the wheel frames 30 and 30 at intermediate positions in the front and rear of the vertical frames 34 and 36. The seat support frame 35 supports the seats 1L and 1R.

Further, pretreatment slide frames 31 and 33 are installed on the middle and upper parts of the left and right vertical frames 34 and 34, and a reinforcing frame 45 is installed on the lower part between the vertical frames 34 and 34. Has been done. The pretreatment unit A slides left and right on the pretreatment unit slide frames 31 and 33 to enable adjustment of the striations, and the pretreatment unit A can be fixed at any position by a fixing screw (not shown). Vertical frame 3 on the rear side
A reinforcing frame 45 is laterally installed in the lower part between 6 and 36, a front and rear frame 37 is installed between the reinforcing frames 45 and 45, and a battery T and a traveling drive motor M2 are arranged on the front and rear frame 37. However, the battery T can also be mounted on the rear reinforcing frame 45. The rotation of the traveling drive motor M2 is driven by the drive chain cases 44, 44.
It is transmitted to the rear two wheels 28 through 28.

As shown in FIG. 2, the pretreatment section A projecting forward is slidable left and right on the pretreatment section slide frames 31 and 33. Only the treatment section A is slid to the left and right at the end of the field, and the reciprocating work is possible while the pretreatment section A is aligned with the vegetables that have not yet been harvested. Since this vegetable harvester harvests vegetables that are planted in multiple rows on flat ridges in the house, it is not possible to harvest all the vegetables Y on all flat ridges at once. I couldn't do that, and while the four wheels passed through the passage between the flat ridges, the pretreatment section A was gradually moved to the strip on the untreated side, and finally all the vegetables on one flat ridge Harvest Y.

Two operators sit on the seats 1L and 1R projecting from both sides of the machine frame F, balance the left and right sides, and the vegetables Y are processed and transported by the pretreatment section A. Vegetable storage box 2 with a fixed number of stocks
Work to arrange in 6. Further, in the vegetable harvesting machine of the present invention, since vegetables are often planted in a greenhouse, when the pretreatment section A and the traveling section B are driven by an engine, the exhaust gas of the engine causes Since it stays inside and adversely affects the health of the operator, the pretreatment drive motor M1 is used to drive the pretreatment section A and the traveling section B.
And the traveling drive motor M2 are used to prevent exhaust gas from filling the house.

Next, referring to FIGS. 4, 5 and 6, the overall structure of the preprocessing section A will be described. Slide pipes 40 and 4 are attached to the slide frames 31 and 33, respectively.
0 is externally fitted, and the pretreatment portion support frames 41, 41 are vertically fixed and framed on both sides of the slide pipes 40, 40, and the motor mounting plate 29 is vertically provided below the lower slide pipe 40. Then, the pretreatment drive motor M1 is installed on the motor mounting plate 29, and the height of the pretreatment unit A is changed between the lower portion of the motor mounting plate 29 and the lower portion of the drive shaft case 16 of the pretreatment unit A. An elevating cylinder 10 is provided for this purpose. The lifting cylinder 10 is driven by a motor.

In addition, on the upper portion of the motor mounting plate 29,
The support part 32 of the horizontal conveyor 7 is configured. Drive bevel gearboxes 18, 18 are provided on both sides of the support portion 32.
Is fixed, and the drive bevel gearbox 18 on one side is fixed.
The belt is wound from the pretreatment drive motor M1 around the input pulley 48 arranged further to the side to transmit power. A drive pulley 23 of the horizontal conveyor 7 is fixed to a shaft extending horizontally between the drive bevel gear boxes 18, and the driven pulley 2 supported at the rear end of the support portion 32.
4, the horizontal conveyor 7 constituted by a flat belt that rotates in the horizontal direction is driven. On the horizontal conveyor 7, a leaf upper conveyor belt 2 and a leaf lower conveyor belt 5 are provided.
Vegetable Y that is sandwiched and conveyed by
Transported in front of the left and right operators. Drive bevel gearbox 18 ・ shaft 11 ・ 11 protruding upward from 18
In addition, the drive pulley 15 that drives the above-the-leaf transport belt 2
The drive pulley 22 of the lower-leaf transport belt 5 and the drive pulley 25 of the rear lower transport belt 39 are fixed.

The upper leaf conveyor belt 2 is wound between the drive pulley 15 and the front driven pulley 14, and the lower leaf conveyor belt 5 is wound between the drive pulley 22 and the front driven pulley 21. The leaf upper conveying belt 2 and the leaf lower conveying belt 5 are integrally formed with a soft elastic body such as a wide sponge on the surface, and the sponge portion holds the leaf portion of the vegetable Y from both sides and damages it. It is configured to deliver to the back so that it will not be delivered.

Further, the rear lower conveyance belt 39 is wound around the drive pulley 25 and the driven pulley 19, and the drive pulley 20 is coaxially arranged below the driven pulley 19.
Is fixedly installed, the root lowering belt 6 is driven, and the root aligning plate 4 that guides the upper part of the root of the vegetable Y is disposed above the root lowering belt 6 and A root cutting blade 12 is arranged on one side. The root aligning plate 4 is arranged on the left and right, and has a groove gap at the center through which a root portion of a vegetable can pass, and a root portion of a vegetable leaf is configured to be unable to pass through the groove gap. ing. The root cutting blade 12 is forcibly driven and rotated by a motor M3, and has a structure in which two disc blades on the left and right sides are overlapped at the center.
The root cutting blade 12 is not limited to the forced drive system, and may be a non-drive system.

Therefore, when the vegetables Y are conveyed, only the root portion projects downward from the gap between the root aligning plate 4 and the root aligning plate 4, and the root portion is clamped by the root pulling belt 6, Since the root pull-down belt 6 is arranged so as to be gradually inclined away from the root aligning plate 4, the root portion of the vegetable is pulled downward so that the lower end portion of the vegetable leaf is on the root aligning plate 4. At the time of pulling to the position where it comes into contact and then cutting with the root cutting blade 12, positioning of the vegetables is performed and the root portion of the vegetables Y passes between the two root cutting blades 12. Only the part of is cut.

A grass board 9 is arranged at the tip of the pretreatment section A. A coulter 50 is rotatably disposed below the middle part of the swarding board 9, and cuts are made in the width for harvesting on the ridges. The driven pulleys 14 and 21 are arranged below the rear part of the weeding plate 9, and the leading ends of the leaf upper conveying belt 2 and the leaf lower conveying belt 5 are wound around the lower part of the driven pulley 21 and the front end of the root aligning plate 4. A root support transport conveyor 3 is arranged in between. As shown in FIG. 7, the root support conveyor 3 includes a drive shaft case 16 projecting forward from the drive bevel gearbox 18 and a front end of a support frame 16 ', a front bevel gearbox 17 and a chain case 52.
The front frame 53 is fixed forward from the front bevel gear box 17 and the chain case 52.
Then, a drive shaft 54 is horizontally mounted on the rear portion of the front frame 53, a driven shaft 80 is horizontally mounted on the front end, and a sprocket is fixedly mounted on the drive shaft 54 and the driven shaft to wind a wide chain conveyor. A root support conveyer 3 is formed.

The root support conveyor 3 is driven by driving the drive shaft 54 from the drive bevel gearbox 18 through the shaft in the drive shaft case 16 and the bevel gear in the front bevel gearbox 17, and further by driving the drive shaft 54. 54 Drives the auxiliary drive shaft 56 which is horizontally mounted in front of the drive sprocket 51 fixed at the end portion through the chain 64, and drives the root support conveyor 3 by the drive shaft 54 and the sprockets on the auxiliary drive shaft 56. Then, the root portion of the vegetables is placed and conveyed backward.

A vibrating digging blade 8 is arranged in front of the root supporting conveyer 3, and a driving part of the digging blade, which is an essential part of the present invention, is arranged in a circumferential space of the root supporting conveyer 3. are doing. The vibrating digging blade 8 is composed of a U-shaped double-supported blade whose lower portion passes below the transport path. However, the blade is not limited to the U-shaped double-ended blade, and a cantilever blade may be used.

As shown in FIGS. 7 and 8, both sides of the vibrating excavating blade 8 are supported by side frames 57, and the side frames 57 are extended rearward to the side portions of the root-supporting conveyer conveyor 3. A vertical frame 61 which is pivotally supported on the lower portions of the parallel links 58 and 59, and the upper portions of the parallel links 58 and 59 extend upward from the front frame 53 to support the upper leaf portion conveying belt 2 and the lower leaf portion conveying belt 5.・ It is pivotally supported by 62. The vibration link 1 is attached to the parallel link 59 on the rear side.
3 is pivotally connected, and the base of the vibration link 13 is an eccentric cam 63.
Is rotatably fitted over a bearing, and the eccentric cam 6
Numeral 3 is fixed to both ends of a transmission shaft 60 arranged in the circulating space of the root support conveyor 3.

Then, the transmission shaft 60 is laid across the midway part of the front frame 53 of the root supporting conveyor 3.
The root support transport conveyor 3 is driven by the auxiliary drive shaft 56 via the sprocket 51 and the chain 64 from the drive shaft 54 at the rear of the root support transport conveyor 3.
The vibration excavating blade 8 is configured to be driven by a chain transmission mechanism arranged within the circumference and within the width. That is, the sprocket 81 is fixedly installed in the center of the auxiliary drive shaft 56 in the left-right direction, and the sprocket 8 is installed in the center of the transmission shaft 60 in the left-right direction.
2 is fixed and a chain 65 is wound between the sprockets 81 and 82 so as to transmit power to the transmission shaft 60. The chain transmission mechanism covers the chain case 83 to prevent infiltration of mud or the like. Then, the vibration link 13 is driven from the transmission shaft 60 via the eccentric cam 63, the parallel links 58 and 59 rotate in the front-rear direction, and the vibration excavating blade 8 vibrates in the front-rear direction. I am configuring.

When the harvesting operation is performed with such a structure, the vegetable Y is vegetated by the swarding boards 9 and 9, and a cut is made in the field by the coulter 50 at the lower part thereof, and the cutting blade 8 is inserted from below the root. The vibration causes the vegetable Y to rise,
In order to vibrate the digging blade 8, power is transmitted from the drive shaft 54 at the rear portion of the root support conveyor 3 to the auxiliary drive shaft 56 via the sprocket 51 and the chain 64, and is further arranged at the center of the auxiliary drive shaft 56. Sprocket, chain 6
5, the transmission shaft 60 is rotated, and the eccentric cams 63 fixed to both sides of the transmission shaft 60 are rotated to swing the vibration link 13,
The excavating blade 8 is vibrated via the parallel links 58 and 59 and the side frame 57.

As the leaf advances, the leaf portion is sandwiched by the leaf upper conveying belt 2 and the leaf lower conveying belt 5 and conveyed backward, and the root portion is placed on the root supporting and conveying conveyor 3. This root supporting and conveying conveyor. 3, when the soil attached to the root is dropped from the gap to the field scene by the intermediary conveyor, and is sandwiched by the upper-leaf portion transport belt 2 and the lower-leaf portion transport belt 5, the lower leaf processing device 4
7, the leaves that have grown and withered in the initial stage of growth are removed, and the root support plate 3 from the rear end of the root support conveyer 3 is removed.
When passing between, the root is pulled downward and the root is cut off. Then, the vegetables transported further backward and passed through the lower transport belt 39 are finally moved to the front of the operator by the horizontal transport conveyor 7 constituted by the flat belt, and stored in the vegetable storage box 26 by the operator. .

[0023]

Since the present invention is constructed as described above, it has the following effects. That is, since the drive unit of the digging blade is arranged in the circulating space of the root support conveyor, the drive unit is not located above or to the side of the digging unit because the drive unit of the digging blade is arranged as described in claim 1. The visibility of the upper part of the section can be secured, and the confirmation of the digging position and the transport state can be done easily and accurate positioning can be done, and since it does not project to the side, other crops, obstacles, etc. It is possible to prevent abutting against and to have a compact structure.

According to the second aspect of the invention, the chain transmission mechanism is located within the circumference of the root-supporting conveyer, does not project laterally, and the space for arranging the link mechanism for driving the digging blade is easy. It becomes possible to secure the width, the width can be narrowed, the maintenance can be easily performed, and the position of the digging blade, the driving amount, and the like can be easily adjusted.

[Brief description of drawings]

FIG. 1 is an overall side view of a vegetable harvester of the present invention.

FIG. 2 is an overall plan view of the vegetable harvesting machine.

FIG. 3 is likewise an overall front view of the vegetable harvester.

FIG. 4 is an overall plan view of the pretreatment unit A with an upper cover removed.

5 is an overall side view of a pretreatment unit A. FIG.

FIG. 6 is a plan view of a rear portion of the pretreatment unit A.

FIG. 7 is a plan view of a front portion of a pretreatment unit A.

FIG. 8 is a side view of the same.

[Explanation of symbols]

 A pretreatment unit 2 leaf upper conveying belt 3 root supporting conveyer 5 leaf lower conveying belt 8 excavating blade 60 transmission shaft 63 eccentric cam

Claims (2)

[Claims] 1. A pretreatment unit A for arranging a digging blade 8 in the front part of a traveling part B to dig up the root part of vegetables, sandwiching the leaf part with a leaf part conveyance belt and conveying it to a workbench G in the rear part. In the vegetable harvesting machine, the vibration excavating blade 8 is arranged at the front end of the pretreatment section A, and the conveyor 3 for supporting the root portion from below and conveying the rear portion is arranged at the rear portion thereof. The drive unit of the above is disposed in a circumstance of the root supporting and conveying conveyor at a position lower than the leaf conveying belt, and the vegetable harvesting machine. 2. A power transmission shaft 60 for driving the vibration excavating blade 8 according to claim 1, wherein power is transmitted from a drive shaft of the root supporting conveyer via a chain transmitting mechanism, and the chain transmitting mechanism is supported by the root supporting conveyer. A vegetable harvester characterized by being placed within the circumference of and within its width.