JP2000060249A - Nip-carrying device of vegetable harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a former problem that a nipping force of a nipping belt is set at about the same at every parts and respectively suitable nipping force is not maintained in a pulling out state and a nipping state in a former type structure. SOLUTION: This nip-carrying device 4 is set from a front lower part of a traveling vehicle body having a running device transmitted from a traveling mission device to a back upper part. The nip-carrying device 4 is composed of a right and left pair of nipping belts 4a and 4b in which a beginning end part is faced to a field and an end part is upwardly extended, and nipping vegetables planted in the field and compulsorily pulling out, then carrying upward and relaying to a successive carrying device. The nipping belt is set to have a nipping force at the beginning part stronger than a nipping force at an end part and can carry the vegetables while nipping from both of right and left sides.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holding and conveying device for a vegetable harvester, and belongs to the technical field of vegetable harvesters. 2. Description of the Related Art A conventional vegetable harvester uses a pair of left and right holding belts to hold root vegetables, for example, carrots and radish, on a vehicle body equipped with a traveling device. A pull-out type root vegetable harvesting machine that forcibly pulls out and harvests from the field by the cooperative action of the rotating car body and the clamping belt that is driven to rotate, and the auxiliary worker removes the vegetables manually harvested from the field Vegetable harvesters of the type that are placed on the harvesting conveyor device and conveyed to the car body side and collected, and vegetables growing in the soil such as onions and potatoes, etc. There is a harvester or the like configured to harvest while digging by a progressive digger. [0003] In the above-mentioned conventional pull-out type root vegetable harvesting machine, the vegetables planted in the field are clamped at the starting ends of a pair of left and right clamping belts and transported upward as it is. While being pulled out, it is further conveyed and transferred to a succeeding conveying device. In this conventional configuration, the clamping force of the clamping belt is set to be substantially the same in any part, and the clamping state when the first vegetable is pulled out from the field, the clamping state when transporting the intermediate part, and the vegetable in the terminal part are determined. In the holding state when the sheet is passed on to the succeeding transport device, a suitable holding force is not maintained, and there is a problem that does not fit the actual situation. [0004] In order to solve the above-mentioned problems, the present invention employs the following technical means. That is, the traveling vehicle body 1 has traveling devices 3 and 3 ′ transmitted from the traveling mission device 2, and a harvesting and conveying device 4 is provided from a lower front portion to an upper rearward portion thereof. A pair of left and right holding belts 4a and 4b each having a portion facing the field, and a terminal portion extending upward. 5, the holding belts 4a and 4b are configured such that the holding force at the starting end portion is set stronger than the holding force at the end portion, and the holding belts 4a and 4b can hold and transport the vegetables from both left and right sides. It is a holding and conveying device of the machine. Since the present invention is constructed as described above, the pair of left and right sandwiching belts 4a and 4b can be pulled out at the start end of the transfer, transferred at the intermediate portion, and transferred at the end portion. The holding force suitable for each of the above is maintained, so that the vegetables can be reliably picked up and harvested without dropping or falling off during the entire transportation process. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the configuration will be described. As shown in FIG. 6, the traveling vehicle body 1 is provided with a pair of left and right traveling devices 3, 3 on a driving sprocket 7 of a wheel shaft provided on both sides of a traveling mission device 2 provided at a low position in the front part. '. And
The traveling devices 3 and 3 'are made of rubber molded rubber.
It is composed of LA. The traveling transmission device 2 is connected so that rotational power is transmitted from an engine (not shown) mounted on the traveling vehicle body 1 and includes a traveling clutch (not shown) therein. 'Clutch operation is possible. The traveling vehicle body 1 is operable with a driver's seat 8 provided on the front right side, and a series of transporting devices such as a harvesting transporting device 4 described later and a storage space for harvested vegetables are provided on the rear space from the left side. Are arranged. Therefore, first, as shown in FIGS. 1 to 4, the harvesting and conveying device 4 comprises a pair of left and right holding belts 4a, 4b.
With the start end facing the ground in the lower front part, the rear part is sequentially inclined and extended toward the upper rear part, and the end part is located in the upper rear part of the traveling vehicle body 1 to pinch and transport the ginseng. It has a configuration (see FIG. 6). In this case, the holding belts 4a and 4b hold the neck part (the root part of the foliage) of the carrot planted in the field at the start end thereof and excavate it while pulling it from the ground as it moves. It is configured to be conveyed upward and backward. The specific configuration will be described below. First, the clamping belts 4a and 4b shown in FIG. 1 are divided into three zones, a front zone 9, a center zone 10, and a rear zone 11, as is apparent from the drawing. The holding force suitable for the zone is set. That is, the front zone 9 is provided so as to stretch the belt by setting the tension pressure of the tension rollers 12 arranged on the back side of the sandwiching belts 4a and 4b so as to stretch the belt. In order to be able to hold, it is configured to be able to hold the strongest among the three zones. Next, the central zone 10 is formed by connecting to the front zone 9 from the time when the carrot is pulled out.
Nipping belt 4 from the back side by each tension roller 13
a, 4b are tensioned to set the clamping force weaker than that of the front zone 9. The reason for this is that if the carrots to be conveyed are set with a strong clamping force in the long section from the front zone 9 to the central zone 10 as in the conventional type, the foliage may be cut off. Had occurred. Next, the rear zone 11 is set to have a smaller clamping force in three zones, and tension rollers 15 and 15 'are attached to both ends of the pendulum arm 14 respectively. Pressure. The pendulum type arm 14 swings by pivotally connecting the intermediate portion to the support frame 16, and when the tension pressure of one tension roller 15 is large, the other tension roller 15 'is used. Is configured to have a relatively low tension. Thus, the rear zone
By setting the pin 11 to be weaker than the clamping force of the front zone 9 and the center zone 10, the transport can be sufficiently performed while the succeeding transport device 5 (neck alignment belt) is provided. It is possible to make the inheritance to the user easy and stable. As shown in FIGS. 4 and 5, the above-mentioned pendulum type arm 14 is engaged with an adjusting slot 17 formed in a support frame 16 by an adjusting screw 18 so as to move forward and backward. With such a configuration, it can be conveniently adjusted according to the positional relationship with the transport device 5 (neck alignment belt), the size of foliage, and the like. Next, as shown in FIG. 2, the holding belts 4a and 4b are combined without a zone corresponding to the central zone 10 to form a front zone 9 and a rear zone 11. This is an embodiment composed of two zones. Next, the holding belts 4a and 4b in FIG.
At the start end, a support plate 19 bearing and supporting each tension roller 12 on one side can be rotated by a rotation fulcrum 20. That is, the support plate 19 is configured such that the rotation fulcrum 20 is provided on one side (the rear part in the transport direction) and the long hole 21 is formed on the other side (the front part in the transport direction), so that the support plate 19 can be opened outward. Therefore, the holding belts 4a, 4a
b indicates that when the pinching error occurs at the start end,
The support plate 19 can be easily opened by rotating the support plate 19 from the rotation fulcrum 20 by using the long hole 21, and maintenance such as removal of a foreign substance held therebetween can be performed. Next, as shown in FIG. 6, the foliage raising device 22 includes a raising lug 23 at a front portion of the traveling vehicle body 1.
Is configured to rotate and protrude while protruding in the traveling direction (forward), and to start the holding belt 4
It is located on both sides in front of the start ends of a and 4b, and is provided with a rear slope and extending upward. Numeral 24 denotes a weeding rod, the base of which is attached to the lower part of the foliage raising device 22 and extends forward, and the rear end is guided by scooping the foliage at the tip. Reference numeral 25 denotes a subsoiler. Next, as shown in FIG. 6, the cutting device 26 is provided below the intermediate portion of the harvesting and conveying device 4 and is being conveyed upward while being clamped at its neck by the clamping belts 4a and 4b. It cuts off the tail and root (hair root) of the carrot. Although not specifically shown, the cutting device 26 is provided below the wire rods arranged in the transport direction.
The cutting device 26 of the container is installed inside, and the portion of the "tail" (root) protruding downward from between the wire rods is cut. In the case of the embodiment shown in FIG. 6, the cutting device 26 pivotally connects one side (lower side in the transport direction) of the cutting device body 27 to the frame 28 and adjusts the length of the other side (upper side in the transport direction). The inclination angle with respect to the harvesting / conveying device 4 can be adjusted by fitting into the hole 29. Next, the earth dropping device 30 is shown in FIGS.
As shown in the figure, below the intermediate portion of the sandwiching belts 4a and 4b, the carrot is formed in the form of a ladder and is detachably attached to the frame 28, and is conveyed upward by the sandwiching belts 4a and 4b. Is made to collide with and fall down the adhering soil. The neck alignment belt 31 (corresponding to the transport device 5; the same applies hereinafter) is provided so that the start end faces the end portion of the harvest transport device 4 and extends rearward in a substantially horizontal state, and is provided by the holding belts 4a and 4b. The structure is such that the ginseng that is being conveyed upward is inherited and pinched to change the conveyance direction. The neck alignment belt 31 is composed of a pair of left and right belts, and has a configuration in which the neck portion of the ginseng is nipped and transported from the left and right. Next, a pair of disk cutters 32 and 32 'are provided on the rear of the above-mentioned neck aligning belt 31 so as to be supported by a tapping belt 33 from the end of the neck aligning belt 31. It is configured to cut the foliage of the carrot being transported. Reference numeral 34 denotes a leaf discharge belt. Three
5 is a conveyor belt, which is the above-mentioned disk cutter 32;
The ginseng extends from below 32 'toward the right side of the traveling vehicle body 1 (the position behind the driver's seat 8), and transports ginseng to a storage box (container) (not shown). Next, the operation will be described. First, the vegetable harvester starts the ginseng harvesting work by starting the engine and driving the rotating parts of the machine body while moving forward in the field. Then, the ginseng in the field is caused by its foliage being engaged with the weeding rod 24 located at the lower part in the front part, and is induced backward, and subsequently, from the lower part where it touches the ground at the front part, To reach the raising lug 23 which is rotating upward. In this manner, the ginseng reaches the starting end of the holding belts 4a and 4b, is held by the pair of left and right holding belts 4a and 4b, and is sequentially pulled upward. At this time, as shown in FIGS. 1 and 2, the holding belts 4a and 4b are moved to the front zone 9 at the transport start end.
In this case, since the tension rollers 12a and 4b are provided so as to stretch the belts by setting the tension pressure of the tension rollers 12 to be strong, the ginseng can be pulled out while maintaining a sufficient clamping force. it can. In the process of being transported upward, the carrot reaches the cutting device 26 on the way, the root (hair root) is cut, and is further transported upward, is transferred to the neck alignment belt 31 and is transported backward. The direction is changed. At this time, the holding belts 4a and 4b are set so that the rear zone 11 has a smaller holding force in each zone, and tension rollers 15, 15 'are provided at both ends of the pendulum arm 14, respectively. The ginseng is pinched and conveyed so that the ginseng is pinched and the handover to the neck alignment belt 31 is facilitated while the pinching force changes alternately. Then, the ginseng reaches the tapping belt 33 from the neck alignment belt 31 and is transferred and carried,
The foliage is cut off by the disk cutters 32 and 32 '. Then, the ginseng is inherited on the conveyor belt 35, is conveyed to the side of the traveling vehicle body 1, and is continuously harvested in the storage box. Further, the foliage portion is conveyed to the rear of the machine body by the leaf discharge belt 34 and is discarded in a field scene after harvesting. During a series of operations as described above, the holding belts 4a and 4b according to the present invention can be reliably pulled out by holding them with a strong holding force at the pulling-out portion at the transport start end, and can be pulled out at the rear connecting portion. When it reaches, the holding force is set to be weak, so that the subsequent transport device 5 (the neck alignment belt 3
It has a practical effect that can be passed smoothly to 1).

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is one embodiment of the present invention and is a plan view. FIG. 2 is a plan view of an embodiment of the present invention. FIG. 3 is a plan view showing an operation according to an embodiment of the present invention. FIG. 4 is a plan view of an embodiment of the present invention. FIG. 5 is a side sectional view showing one embodiment of the present invention. FIG. 6 is a side view of one embodiment of the present invention. FIG. 7 is a side view of one embodiment of the present invention. FIG. 8 is a perspective view of one embodiment of the present invention. [Description of Signs] 1 traveling vehicle body 2 traveling mission device
3, 3 'traveling device, 4 harvest transport device 4a,
4b nipping belt 5 conveying device,

Claims (1)

Claims: 1. A traveling vehicle body 1 has traveling devices 3, 3 'transmitted from a traveling mission device 2, and a harvesting / transporting device 4 is provided from a front lower portion to a rear upper portion. The harvesting / conveying device 4 is composed of a pair of left and right holding belts 4a and 4b each having a start end facing the field and an end extending upward, and holding and forcibly pulling the vegetables planted in the field. The nipping belts 4a and 4b are configured such that the nipping belts 4a and 4b are set such that the nipping force at the start end portion is stronger than the nipping force at the end portion, and hold the vegetables from both left and right sides. Nipping and transporting device for vegetable harvesting machines that can be transported.