JP2008142052A - Crop stem cutting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crop stem cutting machine having a simple structure and widely applicable to a wide variety of species including the dangling of leaves, etc., independent of the forms. <P>SOLUTION: The crop stem cutting machine is composed of a traveling machine body 2 capable of traveling on a field and supporting a stem cutting part 3 to cut and take a standing crop stem and a stem end treating part 4 placed at the back of the cutting part and transfer the cut stem backward while treating the stem end. A holding part 5 to hold the crop stem cut with the stem cutting part 3 in a state laying in the lateral direction of the machine is placed between the stem cutting part 3 and the stem end treating part 4. The stem end treating part 4 is provided with a transfer mechanism 34 to place the crop stem in a treatable state laying in the lateral direction of the machine body and transfer the culm and leaf part of the crop stem backward. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a crop trunk cutting machine that performs stem end processing while cutting a planted crop trunk by field running.

As shown in Patent Document 1, there is known a crop trunk mower that performs stem end processing while cutting a planted crop trunk by field running. This crop trunk mower has a front and rear stem cutting part and a stem end processing part on the traveling machine body, and automatically advances the cutting of the planted crop trunk and the grooving of the stem end by the advance of the machine body, After harvesting the attached tobacco trunk, etc., the groove formed at the trunk end can be hung on a drying house and suspended and dried.
JP 2005-117955 A

  However, crop cultivators with the above configuration are limited in scope because varieties with drooping leaves from planted crop trunks are unavoidably damaged due to the entanglement of the leaves in the stem harvesting section and trunk end processing section. There was a problem of being. Further, when cutting at a low position, the cutting length becomes long, and there arises a problem that the leaf touches the ground when dragged during transportation or suspended in a drying house.

  A problem to be solved is to provide a crop stem mower having a simple configuration that can be widely applied to various varieties including drooping of leaves without depending on the mode.

  The invention according to claim 1 is a field run of a stem cutting unit (3) that cuts and takes in a planted crop trunk, and a trunk end processing unit (4) that feeds back while performing stem tip processing behind it. In the crop stem mower supported by the possible traveling machine body (2), the stem mower (3) is trimmed by the stem mower (3) at an intermediate position between the stem harvester (3) and the stem end processor (4). A placement part (5) that can place the crop trunk sideways in the body width direction is provided, and the stem end processing part (4) is disposed so that it can be processed in the state of lying down in the body width direction. In addition, a conveyance mechanism (34) for feeding the stems and leaves of the crop trunk is attached.

  By the advancement of the traveling machine body, the stem cutting unit cuts and takes the crop trunk, the operator receives this on the mounting unit, and after the orientation of the leaves is adjusted, it is handed over to the trunk end processing unit, and its transport mechanism Together with this, the crop trunk is post-processed while being treated at the end.

According to a second aspect of the present invention, in the configuration of the first aspect, the traveling machine body (2) is provided with a prime mover (15) for supplying power and a transmission (14) for shifting transmission of the power. The prime mover (15) and the transmission (14) are arranged in a lateral range of the stem cutting position of the stem cutting unit (3).
In the crop trunk mower having the above configuration, the stem mowing unit cuts the lower part of the planted crop trunk and the machine passes over the remaining stock. At this time, the prime mover and the transmission are within the lateral range of the stem mowing position. Therefore, there is no interference with the residual strain even if the position is lower than the stem cutting part.

According to a third aspect of the present invention, in the configuration of the first aspect, the trunk end processing section (4) includes a cutting mechanism (32) for cutting a predetermined position of the trunk end and a grooving mechanism (33) for grooving. The operating positions of the cutting mechanism (32) and the grooving mechanism (33) are shifted in the longitudinal direction of the machine body.
The trunk end processing unit processes the trunk end by the cutting mechanism and the grooving mechanism, and at this time, due to the positional shift between the two, the trunk end is cut by the cutting mechanism and then the grooving mechanism performs the grooving.

  According to the configuration of claim 1, it is possible to arrange the direction of the leaf by operator intervention at the placement portion. Therefore, the leaf can be cut from cutting to trunk processing without depending on the aspect of various varieties including tobacco. You can work in the field efficiently without damaging it.

  According to the structure of claim 2, when the planted stem is cut and the aircraft passes over the residual stock, the motor and the transmission are in the lateral range of the stem cutting position. Therefore, there is no interference with the remaining strain even at a position lower than the stem cutting part, so that the height of the aircraft can be suppressed and a compact aircraft configuration can be achieved.

  According to the configuration of claim 3, in combination with the effect of claim 1, the stem end is cut by the cutting mechanism due to the positional deviation between the cutting mechanism and the groove cutting mechanism of the trunk end processing portion, and then the groove cutting is performed by the groove cutting mechanism. Therefore, the groove can be stably sliced at a predetermined depth without causing stem breakage due to unstable grooving under the vibration of the cutting process.

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
1 and 2 are a plan view and a side view, respectively, showing a configuration example of a crop trunk mower according to the present invention. A crop trunk mower 1 includes a traveling machine body 2 capable of traveling on a farm field, a trunk harvesting unit 3 mounted on the front part of the traveling machine body 2 for harvesting and harvesting a crop trunk planted on the farm field, and a rear side thereof. A trunk end processing unit 4 that is to be post-processed while performing trunk end processing is supported by the traveling machine body 2, and a placement unit 5 is configured between the trunk cutting unit 3 and the trunk end processing unit 4.

  Specifically, the traveling machine body 2 has a left and right guide wheels 12 and 12 that can be adjusted in height to travel across the eaves on the left and right machine body frames 11 and 11 that are parallel to each other, and a transmission unit for high-level support. The left and right drive wheels 13, 13 are arranged at the front and rear, a transmission 14 for shifting the driving power and a power source engine 15 are mounted, and a steering handle 16 is attached to the rear. The arrangement of the transmission 14 and the engine 15 is configured so that the height of the fuselage is suppressed, so that there is no interference with the passing range of the residual stock, that is, the range that is shifted laterally from the take-in position of the stem cutting portion 3 In addition, the engine 15 and the trunk end processing unit 4 are arranged on the opposite sides of the left and right for balance of the aircraft. The steering handle 16 is arranged in the vicinity of the positions of the left and right drive wheels 13 and 13 in order to suppress the overall length of the machine body, so that the harvested crop trunk can be handled inside.

  The stem trimming unit 3 is a feed chain mechanism that includes a guide unit 21 that guides the planted crop trunk to the take-in position by the advancement of the traveling machine body 2 and a left-right opposed arrangement chain that holds the crop stem from the left and right sides at the take-up position and feeds it backward. 22 and a rotary blade 23 that forms a cutting mechanism for cutting the crop trunk interposed in the transfer process. The feed chain 22 is driven for backward feeding at the same speed as the machine traveling speed, while the rotary blade 23 is continuously driven for rotation.

  The stem end processing unit 4 is provided with a parallel feed chain mechanism 31 in which two rows of vertically arranged chains for holding and feeding a crop trunk lying in the widthwise direction in the horizontal direction are arranged in parallel, and a crop trunk provided in the transfer process. A rotary blade 32 that forms a cutting mechanism for sizing that cuts off the trunk end of the shaft, and a groove cutting mechanism that includes a groove cutting blade 33 that forms a groove for hanging in the vicinity of the cutting end.

  The position of the parallel feed chain mechanism 31 is arranged offset from the center line of the machine body so that the crop trunk on the uncut side does not get in the way when the crop trunk is placed horizontally. The rotary blade 32 is arranged outside the parallel feed chain mechanism 31 in the inner range of the left and right drive wheels 13 and 13 so that chips at the time of sizing fall within the width of the heel, and the grooving accuracy after sizing is increased. In order to ensure, the groove cutting blade 33 is arranged at the center position of the parallel feed chain mechanism 31.

  The rotary blade 32 and the grooving blade 33 are configured by shifting their respective operation positions in the front-rear direction of the machine body, whereby the trunk end is cut by the cutting device, and then the grooving mechanism performs the grooving. Therefore, the groove can be stably cut at a predetermined depth without causing stem breakage due to unstable grooving under the vibration of cutting. In this case, if the rotary blade 32 and the groove cutting blade 33 have a coaxial configuration with different outer diameter dimensions, the same effect as described above can be obtained with a simple configuration and a shortening of the overall length. It is possible to prevent groove breakage at the time of sizing by forming the diameter and adjusting the size first. In addition, a transmission case of the transmission 14 is disposed between the left and right body frames 11 and 11 below the upper end of the parallel feed chain 31 so as not to disturb the work in the relationship with the parallel feed chain 31. . Similarly, the height position of the engine 15 is determined.

  A transport mechanism 34 for transporting the stems and leaves of the crop trunk that is undergoing the stem end processing is attached to the stem end processing unit 4. The transport mechanism 34 is configured by a belt conveyor that is arranged in parallel to the side of the parallel feed chain mechanism 31, and the transport operation is driven to feed backward at the same speed as the feed chain mechanism 31. This transport mechanism 34 is a flat belt that covers the transmission case of the transmission 14 and prevents the leaves of the crop trunk such as tobacco from being caught on the unevenness thereof. At the discharge end of the transport mechanism 34, a shelf-shaped or box-shaped storage unit 35 is formed with a width that extends to the trunk end processing unit 4 so that one person can work by automatically storing the processed crop trunk.

  The mounting unit 5 is configured in a range extending to the engine 15 as a work table on which the crop trunk cut by the stem cutting unit 3 can be mounted on the side in the body width direction. This placement unit 5 is a place where an operator located in the work area P outside the stem end processing unit 4 arranges the leaves hanging from the crop trunk, and the stem end processing unit 4 Use as a waiting place for. In this way, by intervening the operator, it becomes possible to deal with the processing of a wide variety of crop stems of various varieties, and can be used as a stand when the supply to the stem end processing unit 4 is not in time, It can also be used for harvesting operations that do not involve stem processing.

Next, an engine power transmission system will be described.
As shown in FIGS. 3 and 4, the plan view and side views of the engine power transmission system are transmitted from the main shaft 15 a of the engine 15 to the input shaft 14 a of the transmission 14 behind the transmission shaft T 1. And is transmitted by a transmission member T2 such as a belt to a relay shaft 15b provided so as to cross the body in front of the main shaft 15a. The relay shaft 15b is transmitted from below the rotary blade 23 of the stem cutting part 3 to the drive shaft 23a by a belt T3 having a clutch tension pulley 42a, and the other end of the relay shaft 15b is clutched from the machine crossing position. Is transmitted to the input shaft 4a disposed at the front portion of the trunk end processing unit 4 by the belt T4 including the tension pulley 43a for use. The common shaft 32a of the rotary blade 32 and the groove cutting blade 33 having the coaxial structure is driven from the input shaft 4a by the belt T5, and is driven to rotate in the follow-up direction so that the cutting waste is discharged to the side opposite to the operator.

  The transmission 14 drives the left and right drive wheels 13 and 13 for travel via the travel main clutch 41a and a reduction gear train (not shown) and branches travel synchronization power to the output shaft 14b. The output shaft 14b is transmitted from the lower part of the machine body to the feed input shaft 22a of the feed chain 22 of the front trunk cutting unit 3 by a chain T6 including a tension sprocket 42b for clutch, and the feed of the rear trunk end processing unit 4 The input shaft 31a is transmitted by a chain T7 provided with a tension sprocket 43b for clutch. The feed input shaft 31a drives the parallel feed chain mechanism 31 and the transport mechanism 34 in common.

  Further, at one base portion of the steering handle 16, three systems of levers 41, 42, and 43 for clutch operation are provided. The first lever 41 is connected to a travel clutch 41a of the transmission 14 for travel control, and a sub-lever 44 for operating the travel clutch 41a is disposed at the front of the trunk end processing unit 4. The second lever 42 is connected to the rotary blade 23, the tension pulley 42 a of the feed chain 22, and the tension sprocket 42 b for controlling the operation of the stem cutting unit 3. The third lever 43 is connected to the tension pulley 43a and the tension sprocket 43b of the input shaft 4a and the feed input shaft 31a for operation control of the trunk end processing unit 4.

  The levers 42 and 43 can independently drive the front stem harvesting unit 3 and the rear stem end processing unit 4 so that the crop trunk can be quickly harvested without stem end processing on the day before rainy weather. In addition, it can be taken back to the house, etc., and can be collectively processed by stationary work in the house.

  In the crop trunk mower 1 having the above-described configuration, the stem cutting unit 3 cuts the crop trunk while restraining the crop trunk as the traveling machine moves forward, and sends the harvested crop trunk to the placement unit 5 side. The operator stands in the work area P between the front and rear wheels on the left side of the machine body, and the operator receives the cut crop trunk and lays it sideways in the vehicle width direction on the mounting portion 5, and after setting the direction of the leaves, the trunk in a laid state By passing to the end processing unit 4, the crop trunk is post-processed while being dimensioned and grooved by the cooperative operation of the transport mechanism 34 and stored in the storage unit 35. Therefore, by the operator's intervention in the placement portion 5, various varieties including tobacco whose leaves hang down can be efficiently operated from the cutting to the stem end processing without damaging the leaves without depending on the mode. .

Next, another configuration example of each component device will be described. In the following description, the same members as those described above are denoted by the same reference numerals, and description thereof is omitted.
As shown in the side view of the main part of FIG. 5, another example of the configuration of the steering handle is configured such that the side of the transport mechanism 34 is folded. The steering handle 16 having the above-described configuration is folded when the harvesting trunk is long, so that the handling can be easily performed even when the end side of the crop trunk is sent out from the transport mechanism 34.

Next, another configuration example of the trunk end processing unit will be described.
As shown in the plan view of the main part of FIG. 6, another configuration example of the trunk end processing unit 4 is provided with an auxiliary V-belt 51 at a position between the parallel feed chains 31 for grooving to ensure parallel feed. The crop trunk can be guided to the chain 31. One pulley shaft of the auxiliary V-belt 51 is coaxial with the driven sprocket shaft 31b of the parallel feed chain 31, so that a transmission system can be easily configured.

Next, another configuration example of the housing portion will be described.
As shown in the side view of the main part of FIG. 7, the accommodating part 52 is accompanied by a counter 53 attached at the position immediately before it. The counter 53 counts the number of times the end of the crop trunk has come into contact, and can also be configured with a proximity sensor or the like. With this counter 53, when the crop trunk accommodated in the accommodating portion 52 reaches a certain amount, it can be lowered to the field.

  In addition, a weight detection means is provided in the storage section 52 to notify the storage amount to the operator. In addition, a certain amount of crops is determined by the counter 53, the weight, etc. so that it can be known when the crop trunk is full. The main clutch 41a is disengaged when the trunk enters the accommodating portion 52. Specifically, a spring 54 and a wire 55 are provided in the housing portion 52, and the wire 55 is connected to the main clutch 41a. When the housing portion 52 receives a certain weight, the main clutch 41a is turned off and the operation is stopped. Configure.

  Next, another configuration of the auxiliary V-belt can reliably prevent the fall of the crop trunk by arranging the main part plan view outside the parallel feed chain 31 as shown in FIG. In this case, the auxiliary V-belt 51 is configured to be slidable so that the position can be adjusted in the vehicle width direction. Further, by driving the auxiliary V belt 51 from the support shaft 34b of the flat belt conveyor 34, the belt can be easily attached and detached, and the maintainability can be improved with a simple configuration.

  Next, the emergency lever as a safety device will be described. As shown in the side view of the operation mode of FIG. 9, the emergency lever 56 is a clutch for running and cutting blades with the back of the operator's working position P as an auxiliary operation lever portion. A safety device that cuts off at the same time is configured. Further, the front wheel 12 on the working area P side is of a front / rear position slide adjustment type as shown in the plan view of the main part of FIG. The front wheel 12 can be extended earlier during work to widen the work space P, and shorter during turning to reduce the turning radius.

  Further, as shown in the plan view of the main part of FIG. 11, the stem cutting part 3 is provided with a guide frame 57 for feeding along the feed chain 22 and by arranging a guide body 57g with a spring S interposed therebetween. The crop trunk after cutting and cutting can be manually pulled out while being pushed backward, even while being conveyed by the feed chain 22. The delivery side is the side that is easy for the operator to take out and put on the conveyor. When the operator grasps and places the lower end of the crop trunk, the front side is easy to place, so the groove cutting blade is offset accordingly.

  As shown in the plan view of the machine body shown in FIG. 12, a conveyor conveyer 58 is provided behind the stem cutting unit 3 so that the crop trunk W received from the operator is sent to the rear stem end processing unit 4. The transport conveyor 58 is arranged substantially horizontally so that the operator can easily place the leaves L upward toward the end of the crop trunk. Even if the height is uneven or the height is uneven by the conveyor 58, the stem end processing unit 4 can perform sizing and grooving at a desired length without involving the leaves of the crop trunk. it can.

  Further, the conveying conveyor 58 is provided with a grooving position mark on the base side for grooving position alignment, or the end of the conveyor is set as a grooving position. In this case, a root position guide 59 for pressing the lower end of the crop trunk W is provided so that the groove cutting position can be easily adjusted. The root position guide 59 is configured such that the guide leg 59s can be adjusted to change the guide position in order to facilitate fine adjustment in addition to the height adjustment of the airframe.

  A receiving container 60 for collection and transportation is attached to the lower part of the trunk end processing unit 4 as shown in the side view of the main part of FIG. The container 60 does not scatter the cut trunk waste into the field, so that it does not interfere with the transportation of the transport vehicle or the work vehicle.

It is a top view of the example of composition of a crop trunk mower. It is a side view of the crop trunk mower of FIG. It is a top view of a power transmission system. It is a side view of the power transmission system of FIG. It is a principal part side view of another structural example of a steering handle. It is a principal part top view of another structural example of a trunk end process part. It is a principal part side view of another structural example of a accommodating part. It is a principal part top view of the auxiliary | assistant V belt of another structure. It is a side view of the operation mode of an emergency lever. It is a principal part top view of the front wheel by the side of work. It is a principal part top view of a stem cutting part. FIG. It is a principal part side view of a trunk end process part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Crop stem mower 2 Traveling machine body 3 Stem cutting part 4 Stem edge processing part 5 Placement part 11 Body frame 12 Guide wheel 13 Drive wheel 14 Transmission 15 Engine 22 Feed chain mechanism 23 Rotary blade 31 Parallel feed chain mechanism 32 Rotary blade 33 Groove cutting edge 34 Transport mechanism (flat belt conveyor)
L leaf P work area W crop trunk

Claims (3)

The trunk cutting part (3) for cutting and taking up the planted crop trunk, and the trunk end processing part (4) for sending back while performing the trunk end treatment on the rear side of the trunk (2) In supporting crop stem mower,
At the intermediate position between the stem cutting part (3) and the stem end processing part (4), a placing part (in which the crop trunk cut by the stem cutting part (3) can be placed in a horizontal direction in the body width direction ( 5), and the trunk end processing section (4) is provided with a transport mechanism (34) for disposing the crop trunk in a state where the crop trunk is laid down in the width direction of the machine body and feeding the stems and leaves of the crop trunk backward. Crop stem mower characterized by being attached.   The traveling machine body (2) is provided with a prime mover (15) for supplying power and a transmission (14) for shifting transmission of the power, and the prime mover (15) and the transmission (14) 2. The crop trunk cutter according to claim 1, wherein the crop stem cutter is arranged in a lateral range of the stem cutting position of the section (3).   The trunk end processing section (4) includes a cutting mechanism (32) for cutting a predetermined position of the trunk end and a groove cutting mechanism (33) for cutting a groove, and the cutting mechanism (32) and the groove cutting mechanism (33) 2. A crop trunk mower according to claim 1, wherein the respective operation positions are shifted in the longitudinal direction of the machine body.

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