JP2006006267A5 - - Google Patents

Description

Crop stem mower

  The invention of the present application is a harvesting machine for crops consisting of relatively long trunks, such as tobacco, and dries leaves that grow and grow on the upper part of the trunk in the transporting process of harvesting and harvesting the plant side. Therefore, it is a technique related to a crop trunk mower provided with a groove cutting blade for cutting a groove through which a hanging string for hanging the trunk upside down is passed.

Conventionally, for example, the technique disclosed in Japanese Utility Model Laid-Open No. 5-34830 discloses a technique in which the left and right guide rods are formed following a pair of left and right guide rods formed at the front of the traveling vehicle body. A scraping conveyance mechanism using a pair of belts is provided, and a cutting blade for cutting and a groove cutting blade for forming a string threading groove are provided below the conveyance mechanism. The tobacco stem cutting harvester harvests the trunk of the cigarette with the transport mechanism, cuts it with the front cutting blade, and cuts the groove with the subsequent groove cutting blade. Thus, as shown in the accompanying drawing (see FIG. 11) of the publication, the trunk of the cigarette is cut at the lower part with a groove for passing the string diagonally with respect to the trunk body. Can be hung upside down through.
Japanese Utility Model Publication No. 5-34830

  The conventionally known devices described in the above-mentioned publications are extremely effective devices with a configuration that can sufficiently exhibit the purpose, function, and effect aimed at.

  However, in the known technique, the groove cutting blade is provided on the lower side of the scraping and conveying mechanism constituted by a pair of left and right belts, so that the distance between the position of the groove and the upper leaf portion is long ( When the tobacco trunk is hung upside down after harvesting, there is a problem that the position of the leaf part becomes too low and the leaf part gets on the ground and gets dirty.

  Further, the known technique conveys the cigarette trunk while holding the upper part of the cigarette, and the lower side is clipped to become a free end and is conveyed in a free state hanging from the conveying chain. When the cutting blade hits the trunk, it may be pushed and escape, and there is a problem that it cannot be cut to a stable groove position and groove depth.

Therefore, the invention described in claim 1 of this application, the vehicle body 1 of the pair provided on the front portion of the minute grass rods 2,2 sandwiching the arranged crops behind a pair of right and left to be conveyed the clamping conveying apparatus comprising a conveying endless belt 3,3 disposed, a cutting winding device 6 in the front lower portion to face the conveying path only setting of the clamping and conveying device, is in the upper portion after該刈winding device 6 further transportable the groove cutting blade 7 to cut grooves in the stem of the crop to be fed to the transport path side so as to face the conveying path by the front view downwardly inclined Jikuka, one or towards top of the groove cutting edges 7 and the groove switching position A crop trunk mower is provided, which is provided with a transport endless belt 8 for transporting the trunk of the opposing crop on one side.

Next, the invention described in claim 2 is characterized in that a guide guide 10 for supporting a trunk of a crop is provided above the groove cutting edge 7 on the other side in the left-right direction of the machine endless belt 8. The crop trunk mower described in 1 is used.

Next, in the invention described in claim 3, the distance (H) between the transport endless belt 8 and the guide guide 10 is formed so that the vicinity of the groove cutting position by the groove cutting blade 7 is narrower than the conveyance start end side. and crop the stem cutting machine according to claim 2, wherein the the.

First, by the invention described, if the are conveyed to the machine body backward mowed from the field to hold the stem from both the upper and lower portions of the action of the groove cutting edges 7 in claim 1, because grooves switching operations of the tobacco stem is stably performed, it is possible to equalize the position and depth of the groove of the groove, it can be performed accurately drying operation after harvest. Then, by the child over the portion of the grooved located in an open state, it is possible to grooving at a position closer to the leaves growing in the upper side of the groove cutting edge, the stem in the reverse of it was harvested In the case of hanging, there is an effect that the problem of the conventional type can be solved, such as the position of the leaf part becomes too low and the leaf part gets on the ground and gets dirty.

Then, the invention described in claim 2, by addition to the first aspect of the invention, provided with a draft in the guide 10 on the top of the groove cutting edges 7 in the horizontal direction of the machine body the other side of the conveyor the endless belt 8, Tobacco since the upper portion of the stem is held in the conveying endless member 8 and the guide guide 10, be contacted with the groove cutting edge 7 rather name to escape tobacco stem, it is carried out accurately to Mizosetsu work I can .

According to the third aspect of the present invention, the gap in the vicinity of the groove cutting blade is formed narrower than the gap between the conveyance endless belt 8 on the conveyance start end side and the guide guide 10. can be the top of the tobacco stem is smoothly convey the induced easy for Runode, tobacco stem between the guides 10 and transport the endless belt 8. Further, since the pinching force between the guides 10 and transport the endless belt 8 is increased in groove cutting edge vicinity, it performs the groove switching operations while reliably clamping the upper stem, to equalize the position and depth of the groove Can

  Embodiments of the present invention will be specifically described below with reference to the drawings.

The present invention relates to a crop stem mower to harvest harvests tobacco stem, the stem of the tobacco are growing in the field of a ridge, the clamping and conveying device depending on the course of conveying by nipping state, below the nip position A cutting harvester that cuts the upper side of the plant stock side with the cutting device 6 and cuts and cuts a groove through which the string for hanging upside down is dried on the trunk of the cigarette on the side closer to the leaf part above the clamping position. is there.

  First, as shown in FIGS. 1 to 3, the traveling vehicle body 1 is configured such that a pair of left and right front wheels 11, 11 and rear wheels 12, 12 are provided as shafts and travels by rear wheel drive. In this case, as shown in FIG. 2, the rear wheels 12, 12 divide the traveling power from the first engine 13 mounted on the rear part of the traveling vehicle body 1 via the traveling mission device 14 into both the left and right sides. It is configured to be transmitted from the first transmission case 15 to the left and right sides via the second transmission case 16.

  On the other hand, as can be seen from the drawing, the front wheels 11 and 11 can travel while supporting the traveling vehicle body 1 by pivotally mounting the base portion on the front end portion of the front wheel support rod 17 pivotally attached to the lower front portion of the traveling vehicle body 1. It is configured. In the case of this embodiment, the front wheel support rod 17 is configured to be adjustable, and the height of the front portion of the traveling vehicle body 1 can be freely adjusted by adjusting the front wheels 11 and 11 up and down. ing.

  As shown in FIG. 2, the front wheels 11, 11 and the rear wheels 12, 12 are respectively connected to the base portion of the front wheel support rod 17 and the base portion of the second transmission case 16 and protrude downward. The lower ends of the arms 18, 18 are connected by a linkage 19, and the ground angle between the front wheel support rod 17 and the second transmission case 16 is changed by rotating the vertical adjustment handle 20 at the rear of the vehicle body. The vehicle height can be adjusted.

  In the present embodiment, a mechanism for adjusting the vertical position by manual operation as described above is adopted. However, a sensor for detecting the attitude of the vehicle body to the ground and a hydraulic mechanism for driving the wheels up and down are provided for automatic control. You can also.

  In this way, the traveling vehicle body 1 determines the work position (the position of the cutting height, which will be described later) in accordance with the height of the culm in the field by adjusting the heights of the front wheels 11, 11 and the rear wheels 12, 12. Things that can be done.

  Reference numeral 21 denotes a left and right handle, which has a configuration in which operation levers of each part are concentrated around the handle.

As shown in FIG. 2, the first engine 13 described above is configured to take rotational power from the traveling mission device 14 side to the front side and transmit each of the conveying devices described later. Therefore, the clamping and conveying device described later and other conveying devices have an advantage that the tobacco trunk can be conveyed by being transmitted in a vehicle speed following type and automatically following and shifted to a speed according to the work efficiency (traveling speed).

  Next, main working devices of the present embodiment will be described.

First, the vehicle body 1, Figure 1, to 3, a pair of left and right partial grass rods 2,2 provided on both left and right sides of the front, the transport device vertically in two stages is brought closer to the immediately rearward position It constitutes a provided. In this case, as shown in FIGS. 1 to 4, the sandwiching and transporting device arranges the transport start end portions of the pair of left and right sandwich transport chains 3 and 3 so that the front end portions are opened in a plan view in a letter C shape, We approach the rear lower position of the weed ridges 2 and 2 and provide an extension extending from the middle part to the rear so that the tobacco stem W planted on the ridge U can be clamped from both left and right sides. It has a configuration. And the conveyance path | pass described in this specification has pointed out the path | route which the trunk W passes between the clamping conveyance chains 3 and 3 of the right-and-left both sides as mentioned above.

The nipping and conveying apparatus employs a configuration in which the conveying claws 3a and 3b of the pair of left and right nipping and conveying chains 3 and 3 are opposed to each other with a half pitch shift, although not shown. The pair of left and right nipping and conveying chains 3 and 3 may be configured such that the nipping width can be adjusted by shifting the half-pitch length chain in the traveling direction (front-rear direction).

  As described above, the pair of left and right nipping and transporting chains 3 and 3 can be securely clamped even when the diameter of the trunk is small by sandwiching the trunk by shifting the opposing transport claws 3a and 3b by a half pitch. In addition, there is a feature that can be pinched and conveyed accurately. And when the structure which shifts this by half pitch is employ | adopted, the clamping conveyance chains 3 and 3 have the characteristics which can work | operate, adjusting the clamping width corresponding to the diameter of the trunk of a tobacco.

Then, cutting device 6, as shown in FIG. 1, and 2, immediately below the said clamping and conveying device, disc cutting blade is provided Jikuka, the cutting edge portion by the clamping and conveying device The trunk can be trimmed so as to face the conveyance path to be formed. In addition, 6a has shown the 2nd cutting blade which cut | disconnects the remaining trunk which has been cut away by the cutting device 6.

As shown in FIGS. 1 to 3, the groove cutting blade 7 has two disk cutting blades stacked so that the cut end has a thickness, the conveyance path side is low, and the shaft is mounted in an inclined state in a front view. It is configured such that a cut groove can be formed obliquely downward in the trunk direction with respect to the tobacco trunk that is provided and conveyed. In addition, this kerf is used for the groove | channel through which the hanging string for hanging upside down is passed when drying a trunk after harvesting.

  The groove cutting blade 7, the cutting device 6, and the second cutting blade 6 a are obtained from a second engine 13 a mounted on the left side of the front portion of the traveling vehicle body 1 as can be seen from FIGS. 1 to 3. It is configured to be transmitted through a series of transmission mechanisms. Usually, in this type of work machine, the driving load accompanying cutting requires a much larger driving load than the driving driving load and the load accompanying nipping and conveying. It is configured to be driven by a second engine 13a mounted separately. As described above, the stem mower according to the embodiment of the present invention is configured so that the cutting load is not affected by traveling and conveyance, and the entire operation is smoothly performed by mounting the two engines and driving them in a shared manner. And work efficiently.

Next, the transport device is configured to be provided above the above-described sandwiching transport device and the groove cutting blade 7, winding the transport chain 8 on one side, and providing the guide guide 10 along the opposite side.

The conveying device is in position above clamping and conveying device, in the case of the embodiment constructed stem tobacco facing the guides 10 and the transport chain 8 to a device for conveying the clamped state, Zhang guides 10 As a structure that is pressed and pressed against the chain 8 by a pressure spring, the structure can be adapted to the size of the diameter of the trunk.

And the conveyance apparatus comprised from the above-mentioned conveyance chain 8 and the guide guide 10 is a space | interval (H) of both conveyance parts from a conveyance start end part to the front of the groove cutting blade 7, as shown in FIG. When the position closer to the grooving position by the grooving blade 7 is reached on the lower conveyance side than that position, the distance (h) between the two is approached, and the trunk being conveyed is arranged from both the left and right sides. It is configured such that it can be held and conveyed.

As shown in FIG. 4, the guide guide 10 constitutes a series of guide mechanisms by connecting two of the start end guide 10a and the end guide 10b on the transport path . In other words, the guide guide 10 has a portion having a wide interval (H) with the transfer chain 8 as a start end guide 10a, and a portion arranged close to the interval (h) as an end portion guide 10b. The material is configured to be separately tensioned on the conveyance chain 8 side. The end portion guide 10b is provided so as to extend long rearward as shown in FIG. 3 so that the trunk after grooving can be conveyed so as to eliminate overturning while being supported above the kerf.

  As described above, the guide guide 10 includes the start end guide 10a and the end end guide 10b which are separately formed and individually repelled on the transport chain 8 side. It has a feature that it is transported and no longer has an adverse effect on each other.

  Further, in the conventional apparatus of this type, there is no member corresponding to the guide guide 10 that guides the trunk being conveyed so as not to fall down to the discharge port 23 as in the case of the present embodiment. In the conveyance process, there was a case where it was broken from a kerf portion that was weak in strength, and there was a loss that did not become a product.

On the other hand, as described above, the present plan is characterized in that the guide guide 10 is extended to the vicinity of the discharge port 23 to prevent the trunk from being bent and the loss is extremely reduced. The guide guides 10, in the embodiment, provided to extend up to a position equivalent transfer terminal end portion of the clamping and conveying device in the lower position, while the clamping and conveying device continues to transport to support the upper part of the stem It is configured.

In the embodiment shown in FIGS. 5 to 7, the side where the transmission case 22 supporting the groove cutting edge 7 is supported (the left side in the advancing direction) is not provided with any conveyance chain or guide guide on the upper side. Only one nipping and conveying chain 3 is provided on the side (nipping and conveying apparatus), and the nipping and conveying chain 3 (right side) corresponding to the nipping and conveying chain 3 (left side) is conveyed to the upper side on the opposite side across the conveying path. It has two upper and lower structures provided with an endless belt (conveyance chain) 8.

  Thus, in the case shown in FIG. 1, the conveyance endless belt 8 is provided only on the side corresponding to the groove cutting edge 7 so that the position of the groove and the leaf growing on the upper part of the trunk can be approached. There is. In addition, when the groove cutting blade 7 is pressed to cut the groove, the trunk of the cigarette cannot escape because the two upper and lower sides on the opposite side are received by the transport belt. In addition, the groove is cut in a stable state.

  As shown in FIGS. 1 and 4, the transport chain 8 has only a lower transport claw from which the upper transport claw (corresponding to a chain transport lug) is removed. If comprised in this way, since the conveyance chain 8 can engage and convey the position which approached the leaf growing on the trunk of a cigarette, the kerf which lets the string for suspension pass in the part near a leaf There are features that can be formed.

  Next, as shown in FIGS. 6 and 7, the fall prevention guides 25 a and 25 b are provided at the entrances of the right and left discharge passages 24 a and 24 b provided continuously to the end of the discharge port 23. It is provided so as to be pivotally attached to the frame so as to partition the discharge passages 24a and 24b and switch the opening. Therefore, the fall prevention guides 25a and 25b have the advantage that the discharge passages 24a and 24b can be freely switched, and have the advantage that the tobacco trunk can be discharged from either the left or right side. There is a feature that can be released from both.

  The fall prevention guides 25a and 25b are collected at the discharge port 23 and the start end of the discharge passage 24 if one of them is closed when the auxiliary worker is not in time for receiving or taking out or when two or three trunks are to be assembled. There is an advantage that can be summarized.

As shown in FIG. 3, the discharge guide 28 according to another embodiment has a portion that receives a cigarette's trunk in an arc shape, and can be freely switched to the position of the end portion of the conveyance path in the left-right direction. It is composed. In the case of this configuration, if the discharge guide 28 is directed toward the auxiliary worker who performs the harvesting operation, the trunk of the cigarette is discharged in that direction, so that the work can be performed easily.

  As shown in FIG. 9, the already-described second cutting blade 6a is a disk blade that cuts the upper part of the trunk into a high-cutting state with the cutting device 6 at the front and cuts off the stem on the stock side that remains in the field. Although there is a blade 30 attached to this, the harvested trunk jumps away. Therefore, the harvested trunk is skipped away from the trimming position, and does not stay on the traveling vehicle body 1 side, so that there is an advantage that it is not wound around the rotating part or caught between the guides.

  Reference numeral 31 denotes a guide member that guides the stocker-side trunk to the second cutting blade 6a.

  As described above, in the embodiment according to claim 1 of the present invention, after cutting, the trunk of the cigarette is conveyed in a state where both the upper side and the lower side of the portion where the groove cutting blade 7 acts are held. Therefore, the grooving action can be performed in a very stable state. Therefore, in the embodiment, there is almost no variation in the position of the groove and the depth of the groove, and the drying operation after harvesting is performed accurately. And, since the distance between the position of the kerf cut by the groove cutting blade 7 and the leaf growing on the upper side approaches the embodiment of the present plan, the position of the leaf becomes higher when hung upside down, The drying efficiency can be increased, and the leaves are not soiled due to grounding.

  Next, in the embodiment according to claim 2 of the present invention, since the trunk of the tobacco that is cut and transported is sandwiched both at the top and bottom, it escapes even if the driven groove cutting edge 7 hits. Therefore, the groove position and the groove depth are always stable because the groove can be accurately cut.

Next, in the embodiment according to claim 3 of the present invention, since the interval between the start end portions of the transport device on the upper side is wide, the trunk of the cigarette, in particular, the upper part close to the leaf portion is guided to the inside of the transport device. It becomes easy to be done and can be smoothly conveyed. When the conveying device is close to the grooving blade 7, the conveying chain 8 and the guide guide 10 are brought close to each other to narrow the interval, and the conveying device has a strong clamping force. In this state, the groove cutting action can be performed reliably and stably.

Cut front view of main parts Partially broken side view Plan view of main parts Plan view of main parts Cut front view of main parts Plan view of main parts Partially broken side view plan view

Explanation of symbols

1 Traveling vehicle body 2, 2 split grass cage 3, 3 transport endless belt (nipping transport chain)
6 Cutting device 7 Groove cutting edge 8 Transport endless belt (transport chain)
10 guide

Claims (3)

The clamping conveying apparatus comprising a pair of conveying endless belt 3, 3 for conveying nip the disposed crops behind the pair of partial grass rods 2,2 which is provided at a front portion of the vehicle body 1 is provided, wherein only set to face the transport passage mowing winder 6 to the front lower part of the clamping and conveying device, it is in the upper portion after該刈winding devices 6 further grooves cutting edge 7 to cut grooves in the stem of the crop to be sent transportable conveying the conveying passage side so as to face the conveying path by the front view downwardly inclined Jikuka to convey the person or one the groove switching position facing the side of the crop stem top of the groove cutting edge 7 and one side support A crop trunk mower characterized by providing an endless belt 8. The crop trunk cutting machine according to claim 1, wherein a guide guide (10) for supporting the trunk of the crop is provided above the groove cutting edge (7) on the other side of the transport endless belt (8) in the lateral direction of the machine body . Distance between guides 10 and pre Ki搬 feed endless belt 8 (H) is, according to claim 2, wherein said that the narrower the vicinity of the groove switching position by the groove cutting blade 7 relative to the conveying starting end side Crop stem mower.