JPH0965738A - Harvester for agricultural product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvester for agricultural products having a simple structure so that the number of parts becomes less for making it a low cost, also capable of simply conducting the exchanging operation of a lever and in addition, surely holding the lever at the exchanged position. SOLUTION: This harvester for agricultural products is constituted by arranging a digging up conveyer apparatus provided with an endless conveyer having a digging blade at its tip and installing a vibrating mechanism in its inside, and capable of conducting on-and off-operations and positioned as continued to the digging blade, over from the front of and the lower part of a machine body through the upper part of middle of the machine body to the rear part of the machine body in a self travelling machine body. The vibration mechanism has a vibrating body fitted and inserted to the under side of the bar-conveyer from the side of the bar-conveyer and capable of changing the positions of the on-position giving up and down vibrations to the transferring bar-conveyer and the off-position not giving the vibration by the rotation of the lever. The lever is provided with a toggle spring for exchanging and holding the vibration body in the on-position and off-position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural product harvesting machine for harvesting and selecting root vegetables such as sweet potatoes, potatoes, konjac potatoes from a field, and storing them in a container, and more particularly to a digging conveyor device. The present invention relates to an agricultural product harvesting machine in which a vibrating body that vertically vibrates a bar conveyor provided therein can be displaced between an entry position and a cutting position.

[0002]

2. Description of the Related Art Conventionally, as a crop harvester for collecting root vegetables such as sweet potatoes, potatoes, konjac potatoes from the field, picking them up and storing them, a self-propelled machine, from the lower front of the machine to the upper center of the machine to the rear of the machine. And has a digging blade at the tip,
It has been proposed to dispose a digging conveyor device that is provided with an endless bar conveyor that is internally provided with a vibration mechanism capable of entering and cutting operations in succession to the digging blade.

The vibrating body of the vibrating mechanism can be rotated by a lever so as to be displaced between an entry position where vertical vibration is applied to a moving bar conveyor and a cutting position where vertical vibration is not applied. The switching lever of the vibration mechanism is provided with a fixing means for fixing the switching lever at each switching position because the switching lever should be easily switched by the vibration of the machine body or the like.

[0004]

When the fixing means is provided on the switching lever of the vibration mechanism of the bar conveyor as described above, not only the number of parts increases and the structure becomes complicated, but also the cost increases. In addition, there is a problem that the switching operation of the lever is troublesome.

The present invention has been proposed in order to solve the above-mentioned problems, and has a simple structure with a reduced number of parts, resulting in low cost. Further, the lever switching operation can be easily performed, and the switching position can be improved. It is an object of the present invention to provide an agricultural product harvester that can be reliably held in a farm.

[0006]

In order to achieve the above object, the present invention has a self-propelled aircraft having a digging blade at the tip from the front of the lower portion of the fuselage to the rear of the fuselage through the upper center of the fuselage. In an agricultural product harvesting machine provided with an excavation conveyor device provided with an endless bar conveyor having a vibrating mechanism capable of entering and cutting continuously with the excavating blade, the vibrating mechanism comprises a bar from the side of the bar conveyor. Fitted under the conveyor, rotated by a lever, and has a vibrating body that is displaceable between a moving bar conveyor that vertically vibrates into a moving position and a cutting position that does not vibrate, It is characterized in that a toggle spring for switching and holding the vibrating body between the entering position and the cutting position is interposed in the lever.

[0007]

In the agricultural product harvesting machine of the present invention, the switching operation for switching the vibrating body to the entry position or the cutting position by the lever can be easily performed only by rotating the lever. Then, the toggle spring is stably held at each switching position.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a potato harvester according to an embodiment of an agricultural product harvester of the present invention. In these figures, a body 2 of a potato harvester 1 is equipped with a crawler 3 which is paired with left and right and is capable of spin (super-trust) turning. The driving force to the crawlers 3 is transmitted from the engine 4 mounted on one side of the fuselage 2 via a transmission (not shown) provided between the crawlers 3 at a lower position near the rear of the fuselage 2. It has become.

Further, a digging conveyor device 10 for digging agricultural products in a field is provided from the lower front part of the machine body 2 between the crawlers 3 to the rear part of the machine body, and the conveyor device 10 is also driven as described above. It is performed by the driving force of the engine 4.

The digging conveyor device 10 is composed of a digging blade 11 which is inclined forward and an endless link rod, and descends at a predetermined angle toward an inclined conveying section 12 having slats at predetermined intervals and the end. An endless bar conveyor is constituted by the sorting and conveying section 13 thus arranged.

Further, the excavation conveyor device 10 is vertically rotatable about a rotary shaft (rotational fulcrum) (not shown) at the rear end thereof, and is vertically adjustable by expanding / contracting a hydraulic cylinder (not shown). Has become.

The bracket 41 protruding forward from the left and right sides of the digging conveyor device 10 is provided with a ridge tracking device 40 that follows the movement of the machine body 2 along the length direction of the ridge to be harvested. There is. The pair of wheels 42 of the ridge-following device 40 are in rolling contact with both inclined shoulders of the ridge to be harvested, and can be adjusted in the vertical direction by the vertical adjustment mechanism 43, and can be spaced in the horizontal direction by the slide mechanism 44. It is adjustable.

In a transmission (not shown) that receives power from the engine 4 to change gears, a combination of a hydraulic continuously variable transmission (HST) (not shown) for performing continuously variable gears and a speed change gear provides a continuously variable output. The power transmission is connected / disconnected via the side clutch and the differential device to continuously drive the crawler 3
It is possible to change gears step by step, and to make spin turns (super-incredible turns).

The transmission power (not shown) is transmitted to the excavation conveyor device 10 and the traveling speed of the conveyor can be continuously and steplessly adjusted. By combining the crawler 3 with stepless or stepped traveling, the excavation work speed can be freely set.

Work spaces 6 and 7 are provided at symmetrical positions on the rear side of the machine body 2 with the conveyor device 10 sandwiched therebetween. Work spaces 8 and 9 are provided at symmetrical positions. Work chairs 6a, 7a, 8a, 9a are arranged in the work spaces 6, 7, 8, 9 respectively, and each worker sits on the work chairs 6a, 7a, 8a, 9a to dig. It is possible to perform a sorting operation of agricultural products conveyed by the take-conveyor device 10.

By the way, the workers in the work spaces 8 and 9 remove vines, foliage, large soil blocks, stones, etc. other than the potatoes from the harvested products conveyed by the inclined conveyance section 12,
Perform pretreatment work such as separating the stalk from the stalk. Further, the workers in the work spaces 6 and 7 select the potatoes for which the pre-processing work has been performed and perform the filling work into the container. Further, the work space 6 also serves as the cockpit of the harvester 1, and the operation unit 20 is provided in the front.

Further, the work spaces 6, 7, 8 and 9 are provided with clutch levers for switching transmission of power such as traveling of the harvester 1 or conveyance of the conveyor device 10.
This clutch lever is used for the working posture of the worker and the harvester 1.
For layout reasons such as the position of the center of gravity of the vehicle, it is preferable to provide them in the machine body 2 near the inside of the work space, respectively. The levers 61 and 71 are provided, and in the case of the work spaces 8 and 9 in the middle, the clutch levers 81 and 9 are provided at the diagonal position of the conveyor device 10 in the rearward direction.
1 is provided.

In each of the clutch levers, the clutch lever 61 and the clutch lever 71 are linked so as to rotate in conjunction with each other in the same direction, and the clutch lever 8
Both 1 and the clutch lever 91 are linked so as to rotate interlockingly in the same direction. Further, the clutch lever 61 and the clutch lever 71, and the clutch lever 81 and the clutch lever 91 are linked by a link, and each clutch lever operates in the same direction so that the clutch engagement / disengagement operation is performed. Has become.

The left and right sides of the conveyor device 10 have side frames 5 and 5, respectively.
Is supported by a hydraulic cylinder (not shown) that extends and contracts in the vertical direction around the shaft 5a. Further, on the left and right sides of the front part and the rear part of the conveyor device 10, respectively, container mounting tables 50, 50, 6 are provided.
0 and 60 are arranged. Further, the conveyor device 10
A container mounting table 30 is also provided behind the container. Each of these container mounting tables 30, 50, 60 has a structure that can be folded toward the machine body 2 side.

A vibrating mechanism 70 shown in FIG. 3 is provided in the first half of the side frames 5 and 5, that is, in the inclined conveying section (endless bar conveyor) 12 of the conveyor device 10. The vibrating mechanism 70 includes a lever 73 that is rotatable between stoppers 74 and 74 in the front-rear direction around a rotating shaft 72 that is pivotally supported between the side frames 5 and 5. Is inserted into the lower side of the bar conveyor from the side with respect to the bar conveyors inside the side frames 5 and 5, and is rotated by the lever 73 to give a vertical vibration to the moving bar conveyor. A vibrating body 75 that is displaceable is provided at the position and the cutting position where vibration is not applied. Further, a toggle spring 76 is interposed between the lever 73 and the side frame 5 to switch and hold the vibrating body 75 between the entry position and the cutting position.

In the vibrating mechanism 70 having the above-described structure, it is possible to select whether or not to vibrate the inclined conveying section (endless bar conveyor) 12 depending on the soil quality of the field excavated by the conveyor device 10. The lever 73 is rotated in the front-rear direction. At that time, the lever 73 is securely held by the toggle spring 76 in a state in which the vibrating body 75 is displaced to the entry position that vertically vibrates the moving bar conveyor and the cutting position that does not vibrate, and The lever 73 does not rotate and switch due to vibration or the like.

[0022]

As described above, according to the agricultural product harvester of the present invention, the switching of the vibration mechanism for vertically vibrating the bar conveyor is inserted from the side of the bar conveyor to the lower side of the bar conveyor. The lever is rotated by a vibrating body, and the lever is provided with a toggle spring that switches and holds the vibrating body between the entry position and the cutting position. Switching between and can be performed by a simple operation of rotating the lever. Further, the toggle springs hold the respective switching positions securely.

Moreover, the structure is simple, and a separate fixing means for fixing the levers to the respective switching positions is not required, the number of parts is reduced, and the cost is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a potato harvester according to an embodiment of an agricultural product harvester of the present invention.

FIG. 2 is a plan view showing the same potato harvester.

FIG. 3 is a side view of a vibration mechanism of a bar conveyor.

[Explanation of symbols]

1 potato harvester 2 machine body 3 crawler 4 engine 5 side frame of conveyor device 5a shaft 6-9 working space 6a-9a working chair 61-
91 clutch lever 10 conveyor device 11 digging blade 12 inclined transport unit 13 sorting transport unit 20 control unit 40 ridge following device 41 bracket 42 wheel 43 vertical adjustment mechanism 44 sliding mechanism 30, 50, 60 container mounting table 31 spare container mounting table 70 Vibration Mechanism 72 Rotating Shaft 73 Lever 74
Stopper 75 Exciter 76 Toggle spring

Claims (1)

[Claims] 1. A vibration mechanism for a self-propelled aircraft having a digging blade at the tip from the front of the fuselage to the rear of the fuselage through the upper portion of the fuselage center, and a vibrating mechanism capable of entering and cutting continuously with the digging blade. In the agricultural product harvesting machine provided with the digging conveyor device provided with the endless bar conveyor, the above vibrating mechanism is inserted from the side of the bar conveyor to the lower side of the bar conveyor and rotated by the lever. , Has a vibrating body that can be displaced between a moving bar conveyor that vertically vibrates and a vibration-free cutting position, and switches the vibrating body between the moving position and the cutting position on the lever. An agricultural product harvesting machine characterized by having a toggle spring held therein.