JP4908317B2 - Cutting apparatus and remaining trunk processing apparatus provided with the same - Google Patents

Description

  The present invention relates to a cutting device that pulls in from one end portion of a processing object and conveys the processing object so that the end portion is preceded, and chops and transfers the processing object, and a remaining trunk processing device including the cutting device.

  Examples of processing objects processed by such a cutting apparatus include crops that harvest only leaf parts such as leaf tobacco and tea. Such a crop will leave a stem that remains rooted in the vine after harvesting, but in order to newly cultivate the crop, this residual stem is processed to return the cocoon to a state where it can be cultivated. There is a need. As a method for this residual stem treatment, it is conceivable that the residual trunk is sown into the soil, but it has been pointed out that leaf tobacco, especially leaf tobacco, grows at the root of the residual trunk. It is recommended that the trunk be pulled out of the heel and recovered.

  This retraction work has been done manually by hand, but the roots that extend from the remnant trunk to the soil are radiating and heavy labor. A remaining trunk processing apparatus including a cutting device that collects and cuts the waste has been developed (see Patent Document 1).

  As shown in FIG. 3A (side view) and FIG. 3B (plan view), the remaining trunk processing device 70 is attached to the rear portion of the traveling machine body 90, and as the traveling machine body 90 travels forward. The remaining trunk processing is performed while moving forward. The remaining trunk processing device 70 is applied to the body frame 10 that travels across the fence U in which the remaining trunk Z to be treated is planted, and the remaining trunk Z that is pushed down forward in the traveling direction by the forward traveling of the traveling body 90. The excavation device 15 that digs up the root Zn of the remaining trunk Z and pulls the remaining stem Z into the machine from the root side, the cutting device 71 that conveys and cuts the drawn residual trunk Z, and the cutting device 71 And a storage device 60 for storing the processed fragment of the remaining trunk Z.

  The cutting device 71 transports the remaining trunk Z drawn by the digging device 15 to the rear side so that the root Zn precedes, and a plurality of conveying rollers 21 for dropping soil adhering to the remaining trunk Z while being conveyed. 22 and a plurality of cutting blades 27 that are radially arranged and arranged at predetermined intervals in the axial direction on a rotary drive shaft 26 that is rotatably supported downstream of the transport rollers 21 and 22 in the transport direction. A cutting rotor 73, a blower 75 that blows out fragments cut by the cutting rotor 73 and transferred in one direction of the body width, and a shooter 77 that transfers the fragments blown out from the blower 75 to a predetermined position. Has been.

JP 2005-185244 A

  The blower 75 of the conventional remaining trunk processing device 70 is provided independently of the cutting rotor 73 at one axial end of the cutting rotor 73. For this reason, the remaining trunk processing device 70 has a problem that the structure is complicated, the number of parts is increased, and the cost is increased.

The fragments of remaining stem Z which are chopped by the cutting rotor 73 is adapted to move the blower 75 side by the flow of air generated by the rotation of the cutting rotor 73, the conveying rollers 21 and 22 When the remaining trunk Z is transported to the cutting rotor 73 while the soil attached to the remaining trunk Z is not sufficiently dropped when the remaining trunk Z is transported, the blower of the fragments shredded by the soil having a large mass In some cases, the movement toward the 75 side is obstructed, and fragments are clogged around the cutting rotor 73.

  The present invention has been made to solve such a problem, and includes a cutting device that suppresses the cost increase of the cutting device and does not cause clogging of fragments even if dirt or the like is mixed in the cutting device. Another object of the present invention is to provide a remaining trunk processing apparatus.

  In order to solve such a problem, the present invention has the following features. One of the features is that the airframe (for example, the airframe frame 10 in the embodiment) is opposed to the airframe with a predetermined gap in the vertical direction and is rotatably supported, and the object to be processed (for example, the remaining trunk Z in the embodiment). And a plurality of cutting blades radially attached to a rotary drive shaft that is rotatably supported downstream of the pair of transport rollers in the transport direction. And a pair of blowers disposed on both sides of the plurality of cutting blades, and a width substantially equal to the distance between the widthwise outer ends of the pair of blowers, and the processing object is shredded by the plurality of cutting blades And a shooter that guides a piece of the processing object released by the pair of blowers and discharges it in a desired direction substantially at the same time. Here, the distance between the width direction outer side edge part of a pair of blower means what included the width direction distance by which the cutting blade between the blowers is arrange | positioned, and the width direction distance of a pair of blower itself. .

  According to this feature, by providing a pair of blowers on both sides of the plurality of cutting blades, it is possible to improve the blowout performance of the blower compared to the case where the blower is provided only on one side of the plurality of cutting blades. it can. For this reason, even if soil with a large mass is mixed, the soil can be moved to the shooter side by the blower. The shooter has a width substantially equal to the distance between the outer ends in the width direction of the pair of blowers, and the processing object discharged by the pair of blowers substantially simultaneously with chopping the processing object with a plurality of cutting blades. By guiding the fragments and releasing them in a desired direction, it is possible to quickly release the fragments of the processing object moved to the shooter side and the contaminated soil from the shooter. Therefore, it is possible to prevent a possibility that the cutting device is clogged with fragments.

  One of the features is that a blower is provided on both axial sides of the rotary drive shaft to which a plurality of cutting blades are attached.

  According to this feature, the blower is provided on both sides in the axial direction of the rotary drive shaft to which a plurality of cutting blades are attached, so that the part for cutting the object to be processed and the blower can be configured integrally. The structure can be simplified, and the cost increase of the cutting device can be suppressed.

  In addition, one of the features is that each of the tip portions of the plurality of cutting blades is bent toward the blower side in the axial center distribution of the rotary drive shaft.

According to this feature, each tip of the plurality of cutting blades is bent toward the blower side in the axial direction of the rotation drive shaft, so that fragments cut by the cutting blade and mixed soil can be removed from the rotation drive shaft. It moves to the blower side with approximately evenly divided on both sides in the axial direction with the center in the axial direction as the boundary. Thus, blower, half the amount of fragments chopped at the same time by a plurality of cutting blades at Ino yo it was blown to the shooter side, a situation in which fragments clogging the cutting device improved balloon performance of blower It can prevent more effectively.

Further, one of the features is a digging device that is mounted on a traveling machine body and digs a root portion of the remaining trunk with respect to a remaining trunk that is pushed down toward the front side in the traveling direction by the traveling of the traveling machine body, and the digging apparatus A cutting device that performs processing on the remaining trunk that has been dug up by the pair of cutting rollers, and the cutting device draws and conveys the root portion of the remaining trunk that has been dug up by the excavating device from the root side, and the pair of conveying rollers. A plurality of cutting blades radially attached to a rotary drive shaft that is rotatably supported downstream of the conveying roller in the conveying direction; a pair of blowers provided on both sides of the plurality of cutting blades; The width of the blower is substantially the same as the distance between the outer ends of the blower, and a desired amount is obtained by guiding fragments of the remaining trunk discharged by the pair of blowers substantially simultaneously with chopping the remaining trunk with a plurality of cutting blades. Remnants with shooters discharging in the direction Characterized in that it is a processing device.

  According to this feature, the remaining trunk processing device includes a digging device and a cutting device, and the cutting device is provided between a pair of blowers provided on both sides of the plurality of cutting blades and the widthwise outer ends of the pair of blowers. And having a shooter that guides the fragments of the remaining stem discharged by the pair of blowers and discharges them in a desired direction substantially simultaneously with chopping the remaining trunk with a plurality of cutting blades. The blower blow-out performance is improved, and the mixed large-volume soil can be moved to the shooter side by the blower, and the remaining trunk fragments and mixed soil moved to the shooter side are quickly released from the shooter. be able to. Therefore, it is possible to provide a remaining trunk processing apparatus that is free from the possibility that fragments or the like are clogged in the cutting apparatus.

  According to the cutting apparatus and the remaining trunk processing apparatus equipped with the same according to the present invention, by having the above-described features, the structure of the cutting apparatus is simplified to suppress the cost increase, and there is no possibility that the cutting rotor is clogged. An apparatus and a remaining trunk processing apparatus including the apparatus can be provided.

  Hereinafter, a preferred embodiment of a cutting apparatus according to the present invention will be described with reference to FIGS. This embodiment demonstrates the remaining trunk processing apparatus carrying the cutting device used in order to shred the remaining trunks, such as leaf tobacco, a sunflower, and corn, among various cutting devices. For convenience of explanation, the directions of arrows shown in FIG. 1 (side view) and FIG. 2 (a) (plan view) will be described below as the front-rear direction and the left-right direction.

  As shown in FIGS. 1 and 2A, the remaining trunk processing device 1 is attached to a three-point link coupling mechanism (not shown) provided at the rear portion of the traveling machine body 90 so that the traveling machine body 90 moves forward. The remaining trunk processing work is performed according to the above. The remaining trunk processing apparatus 1 is mounted on the body frame 10 that travels across the fence U in which the remaining trunk Z to be treated is planted, and is pushed down forward in the traveling direction by the forward movement of the body frame 10. The excavation device 15 that digs up the root Zn of the residual stem Z and draws the residual stem Z into the machine from the root side, and the cutting device that transports the drawn residual stem Z and performs a cutting process on the residual trunk Z 20 and a storage device 60 for storing a fragment of the remaining trunk Z processed by the cutting device 20.

  The body frame 10 is attached to both the left and right sides of the lower frame 11 and extends upwardly, the lower frame 11 having a hole 11a formed therein, the pair of left and right rear wheels 12 attached to the lower part of the rear side. It has a pair of left and right outer frames 13. Since the rear wheel 12 is rotatably provided on the lower frame body 11, the machine body frame 10 follows the traveling machine body 90 well and can perform stable work. Further, when not working, the front frame lower portion 11 can be detachably provided with a rotatable front wheel, which facilitates movement in a state separated from the traveling machine body 90.

  On the front side of the lower frame body 11, there is provided a mounting portion 17 that is attached to a three-point link coupling mechanism provided at the rear portion of the traveling machine body 90. The mounting portion 17 has an input portion 18 provided with an input shaft at the center in the left-right direction on the upper side, and the input shaft transmits power from the PTO shaft of the traveling machine body 90 via a transmission shaft (not shown). It has become.

  Between the pair of left and right outer frames 13, the excavating device 15 and the cutting device 20 described above are mounted. The digging apparatus 15 includes a digging rotor 16 that is disposed at the foremost part of the machine body frame 10 to dig up the root Zn of the remaining trunk Z and draw the remaining trunk Z into the machine from the root Zn. The digging rotor 16 is rotatably supported between the front end portions of the pair of outer frames 13.

  The digging device 15 is driven by the power transmitted to the input shaft of the input unit 18 being transmitted via a power transmission mechanism provided between the input unit 18 and the digging device 15. When power is transmitted to the excavation rotor 16, the excavation rotor 16 rotates in a direction (arrow A direction) scooping up the root Zn of the remaining trunk Z from the lower side to the upper side. As a result, the remaining trunk Z is transported to the downstream side in the rotational direction of the excavation rotor 16 so that the root Zn is dug up from the ridge and preceded by the root Zn, and is drawn into the body frame 10.

  The cutting device 20 is provided behind the digging device 15 and drops the soil adhering to the remaining trunk Z while transporting the remaining trunk Z drawn by the digging device 15 to the rear side so that the root Zn precedes. A pair of upper and lower conveying rollers 21 and 22 that perform processing, a cutting rotor 25 that shreds and transfers the remaining trunk Z conveyed by these conveying rollers 21 and 22 in a predetermined direction, and a fragment that is transferred by the cutting rotor 25 And a shooter 50 for transporting the to a predetermined position.

  The pair of upper and lower transport rollers 21 and 22 are arranged to be opposed to each other with a predetermined gap in the vertical direction on the upper rear side of the digging rotor 16 and are rotatably supported, and the root Zn side of the remaining trunk Z is placed in the gap. The remaining trunk Z is conveyed rearward so that it is pulled in and the root portion Zn precedes. Further, behind the pair of transport rollers 22, a guide rotor 23 for guiding the remaining trunk Z transported rearward to the cutting rotor 25 is rotatably provided.

  A plurality of protrusions 21a and 22a are provided on the surface portions of the transport rollers 21 and 22 and extend radially with a predetermined interval in the circumferential direction and linearly arranged in the axial direction. The protrusions 21a and 22a have a function of contacting the remaining trunk Z and feeding it to the rear side, and a function of dropping the soil attached to the remaining trunk Z.

  A pair of guide plates 19 are attached to the left and right sides of the outer frame 13 between the transport roller 21 and the digging rotor 16 so as to incline inward as it advances rearward. These guide plates 19 function to bring the remaining trunk Z that has been dug up and drawn by the dug rotor 16 toward the center in the width direction of the body frame 10.

  The cutting rotor 25 is a plurality of cutting blades 27 that are arranged radially at predetermined intervals in the axial center of the rotational drive shaft 26 that is rotatably supported at the rear position of the guide roller 23. And a pair of left and right blowers 30 provided on the rotary drive shaft 26 outside the cutting blades 27. The rotary drive shaft 26 rotates in the direction (arrow B direction) in which the plurality of cutting blades 27 cut the remaining trunk Z conveyed by the conveying rollers 21 and 22 from the upper side to the lower side.

  The cutting rotor 25 is surrounded by the outer case 28 as shown in FIGS. 2A and 2B (partial rear view). The outer case 28 is attached with both ends in the width direction connected to the inner surfaces of the pair of left and right outer frames 13, and the outer case 28 and the outer frame 13 form a box-like body surrounding the cutting rotor 25. The box-like body has an opening at the front side and the upper rear side of the central portion in the width direction. The front opening of the box-shaped body is a receiving opening for receiving the remaining trunk Z transported by the transport roller 21, and the upper opening on the rear side is a discharge for discharging fragments of the shredded remaining trunk Z. This is the outlet 28a. The discharge port 28 a has an opening having substantially the same width as the distance L between the widthwise outer ends of the pair of left and right blowers 30. Guide plates 24 for guiding the conveyed remaining trunk Z to the center side where the cutting blade 27 is provided are attached to the inner surfaces of the pair of outer frames 13 on the front sides of the left and right sides of the receiving opening of the box-shaped body. Yes. For this reason, there is no possibility that the remaining trunk Z conveyed by the conveying roller 21 contacts the blower blade 31.

  The cutting rotor 25 also has a function of transferring a fragment of the chopped remaining trunk in addition to a function of chopping the remaining trunk Z. This fragment transfer function is performed by the cutting blade 27 and the blower 30. The distal end portion 27a of the cutting blade 27 is bent toward the blower 30 side by axial central distribution with the axial central portion of the rotary drive shaft 26 as a boundary. For this reason, when the cutting rotor 25 rotates, an airflow that flows from the central portion in the axial direction of the rotary drive shaft 26 toward the blower 30 is generated, and the fragments of the remaining trunk Z move in a substantially uniform manner along the left and right.

  The blower 30 includes a blower blade 31 attached to both ends in the axial direction of the rotary drive shaft 26, and the outer case 28 described above surrounding the outer periphery of the blower blade 31. For this reason, when the rotation drive shaft 26 rotates, the air blowing blade 31 rotates to generate an airflow in the outer case 28, and the cut fragment of the remaining trunk Z moves to the discharge port 28a side. As described above, the rotation drive shaft 26 of the cutting rotor 25 is used as the rotation shaft of the blower 30, and the outer case 28 surrounding the cutting rotor 25 is also used as a case surrounding the blower blades 31. It is possible to suppress an increase in cost of the remaining trunk processing apparatus 1 including the cutting apparatus 20.

  As shown in FIG. 1, a shooter 50 is connected to the upper rear side of the outer case 28 and discharges the shredded pieces in communication with the discharge port 28a. The shooter 50 is formed in a U-shaped cross section and extends rearward and obliquely upward. Similar to the discharge port 28a, the shuter 50 has substantially the same width as the distance in the width direction between the pair of left and right blowers 30. The upper side of the shooter 50 is curved in a convex shape, and the upper end is above the housing device 60. Placed in position. For this reason, the fragment of the remaining trunk Z that flows in the shooter 50 and moves upward is discharged from the upper part of the shooter 50 and transferred to the storage device 60.

  On the rear side of the body frame 10, the above-described storage device 60 that stores the remaining trunk fragment discharged from the shooter 50 is disposed. The accommodating device 60 has an accommodating portion 52 that is held by a support portion 51 provided at the rear end portion of the body frame 10 so as to be hooked.

  Next, the operation in the case where the remaining trunk processing work is performed by the remaining trunk processing apparatus 1 equipped with the cutting device 20 of the present invention will be described. First, the remaining trunk processing device 1 is attached to the rear part of the traveling machine body 90, and the traveling machine body 90 is installed at a position where the traveling machine body 90 can straddle the ridge U. When the traveling machine body 90 is moved forward along the heel U and the power from the traveling machine body 90 is transmitted to the remaining trunk processing device 1, the remaining trunk Z is pushed forward by the traveling movement of the traveling machine body 90. The remaining trunk Z pushed down to the front side is dug up by the excavation rotor 16 rotating in the direction of the arrow A, and the root Zn of the remaining trunk Z is scooped up from the lower side to the upper side, and the remaining trunk Z is dug up. The rotor 16 is drawn downstream in the rotation direction.

  Then, the remaining trunk Z that is dug up from the ridge U by the rotation of the dug rotor 16 and conveyed so that the root Zn precedes is drawn in by the pair of upper and lower conveying rollers 21, and is paired by the pair of upper and lower conveying rollers 21 and 22. It is sent out to the rear side while being held. Further, foreign matters such as soil adhering to the remaining trunk Z are splashed off by the protrusions 21a and 22a provided on the surfaces of the transport rollers 21 and 22. The dropped soil or the like falls and falls on the ridge U through the hole 11a of the lower frame 11. For this reason, this soil does not accumulate around the transport rollers 21 and 22, and the operation of each part of the transport rollers 21 and 22 can be maintained smoothly.

Then, the remaining trunk Z transported by the transport roller 22 is supplied to a cutting rotor 25 that rotates while being guided by a guide roller 23 and a guide plate 24.
With this rotation, the cutting rotor 25 also rotates the blower blade 31 of the blower 30 to generate a swirling flow of air in the outer case 28. The width of the discharge port 28a and the shooter 50 communicating with the discharge port 28a has substantially the same width as the distance between the outer ends in the width direction of the pair of blowers 30. Further, the cutting blade 27 is bent toward the blower 30 side by axial center distribution with the axial center portion of the rotary drive shaft 26 as a boundary. For this reason, the fragments of the remaining trunk Z shredded by the cutting blade 27 are divided approximately equally on both sides in the axial direction with the axial center of the rotational drive shaft 26 as a boundary, and the discharge port is generated by the swirling flow generated by the blower 30. Move to the side. In other words, the fragment of the remaining trunk Z is moved to the discharge port side by the swirling flow substantially simultaneously with being cut by the cutting blade 27.

  Further, even if foreign matter such as soil having a large mass is mixed in the cutting rotor 25 in a state where foreign matter such as soil attached to the remaining stem Z is not completely removed from the remaining stem Z, the soil or the like is discharged into the discharge port. It is transferred to the 28a side. The shredded fragments of the remaining trunk Z and foreign matters such as soil are discharged from the discharge port 28a and flow through the shooter 50 for discharge. Therefore, there is no possibility that the cutting device 20 is clogged with fragments, soil, or the like.

  As described above, the pair of blowers 30 are provided on both the left and right sides of the cutting rotor 25 having the plurality of cutting blades 27, and the widthwise outer ends of the pair of blowers 30 are disposed on the rear upper portion of the outer case 28 surrounding the cutting rotor 25. By providing a discharge port 28a having substantially the same width as the distance between them, and providing a shooter 50 having the same width as this discharge port 28a and communicating with the discharge port 28a, the blowing performance of the blower 30 is improved. A fragment of the remaining trunk Z and foreign matter such as mixed soil can be quickly discharged from the shooter 50, and the remaining trunk processing apparatus 1 can be provided without the possibility of clogging the fragments in the cutting device 20.

The side view of the remaining trunk processing apparatus carrying the cutting device concerning one embodiment of the present invention is shown. The remaining trunk processing apparatus concerning one embodiment of the present invention is shown, the figure (a) is a top view of the remaining trunk processing apparatus, and the figure (b) is the partial rear view of the remaining trunk processing apparatus. The remaining trunk processing apparatus which mounted the conventional cutting device is shown, The same figure (a) is a side view of a residual trunk processing apparatus, The same figure (b) is a top view of a residual trunk processing apparatus.

Explanation of symbols

1 Remaining trunk processing device 10 Airframe frame (airframe)
DESCRIPTION OF SYMBOLS 15 Excavation device 20 Cutting device 21, 22 Conveyance roller 26 Rotation drive shaft 27 Cutting blade 30 Blower 50 Shuter 90 Traveling machine body Z Remaining trunk (object to be processed)
Zn root

Claims (4)

A pair of transport rollers that are arranged opposite to each other with a predetermined gap in the vertical direction and are rotatably supported, and draw one side end of the object to be processed into the gap,
A plurality of cutting blades radially attached to a rotary drive shaft rotatably supported downstream of the pair of transport rollers in the transport direction;
A pair of blowers disposed on both sides of the plurality of cutting blades;
The processing object having the same width as the distance between the outer ends in the width direction of the pair of blowers, and the processing object discharged by the pair of blowers substantially simultaneously with chopping the processing object by the plurality of cutting blades. A cutting device comprising: a shooter that guides and releases a fragment in a desired direction.   The cutting device according to claim 1, wherein the blower is provided on both axial sides of a rotary drive shaft to which the plurality of cutting blades are attached.   3. The cutting device according to claim 1, wherein each of the tip ends of the plurality of cutting blades is bent toward the blower side in an axial center distribution of the rotation drive shaft. An excavation device that digs up the root of the remaining trunk with respect to the remaining trunk that is attached to the traveling aircraft and pushed down toward the front in the traveling direction by the traveling aircraft, and the residual trunk that is excavated by the excavating device It has a cutting device for processing
The cutting device is supported by a pair of conveying rollers that draws and conveys the root portion of the remaining trunk dug up by the excavating device from the root side, and is rotatably supported on the downstream side in the conveying direction than the pair of conveying rollers A plurality of cutting blades radially attached to the rotary drive shaft, a pair of blowers provided on both sides of the plurality of cutting blades, and a distance substantially equal to the distance between the widthwise outer ends of the pair of blowers. And a shooter that guides and discharges a fragment of the remaining stem discharged by the pair of blowers in a desired direction substantially simultaneously with chopping the remaining trunk by the plurality of cutting blades. Stem processing device.

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