JP2018078837A - Sugar cane harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange a cover covering a side face and an upper side of a conveyance device in a sugar cane harvester and prevent scattering of dust in a periphery.SOLUTION: A sugar cane harvester 1 includes: a base cutter 3; a conveyance device comprising a front conveyance device 4 and a rear conveyance device 5 conveying a stem reaped by the base cutter 3 in a laterally fallen posture; and a processing part comprising a chopping device 6 cutting a stem conveyed by the conveyance device in a predetermined dimension. In the front conveyance device 4 serving as the conveyance device, a plurality of upper rolls 402 and lower rolls 403 rotate while facing each other between right/left side plates 401, 401. A hole in a vertical direction is arranged in the right/left side plates 401, 401 for enabling the upper rolls 402 to oscillate vertically with respect to the lower rolls 403 according to a conveyed stem amount. Covers 425, 427, 428 are arranged which cover at least a drive device driving the lower roll 403 to rotate. An upper face of an inclined cover 428 in a step part in the covers includes an inclined face facing an outer lower part.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a conveying device that conveys a stem stem from which sugarcane has been cut back to the rear.

  Conventionally, a technique in which a plurality of a pair of upper and lower rolls are arranged in the front-rear direction in order to convey the sugarcane cut by the cutting device backward while being sandwiched in a sideways posture is known (for example, Patent Document 1 and Patent Document 2). reference).

Japanese Utility Model Publication No. 58-167528 JP 59-45813 A

However, the techniques in Patent Documents 1 and 2 are not configured to cover a pair of rolls, a chain, a sprocket, a shaft for rotating the rolls, a side of the side plate, and the like with a cover or the like. Therefore, the dust generated when the cut sugarcane is transported is discharged upward and sideward, and the dust moves around and stains the surroundings. Further, when dust adheres to the drive unit, wear occurs, leading to a reduction in life. Also, as in Patent Document 1, when the upper roll is configured to be able to swing up and down, dust may leak from the long hole that guides the roll shaft, and dust may accumulate on the chain case, causing the surroundings to become dirty. It was.
Therefore, an attempt is made to provide a sugarcane harvester that is provided with a cover that covers the side and upper side of the conveying device in the sugarcane harvester so that dust does not scatter around.

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
In other words, in claim 1, a sugarcane harvesting device is provided that includes a cutting device, a transport device that transports a stem stem cut by the harvesting device in a horizontal position, and a processing unit that cuts the stem stem transported by the transport device to a predetermined size. The conveying device is configured to rotate a plurality of rolls oppositely between the left and right side plates, and in order to allow the upper roll to swing with respect to the lower rolls depending on the amount of stems to be conveyed, holes are formed in the left and right side plates. A cover is provided to cover at least the means for rotationally driving the lower roll, and an outer downward inclined surface is provided on the upper surface of the cover.

  In claim 2, a sugarcane harvesting machine comprising: a harvesting device; a transporting device that transports a stem stem cut by the harvesting device in a horizontal position; and a processing unit that cuts the stem stem transported by the transporting device with a predetermined dimension. The conveying device is configured to convey the stem between the left and right side plates, and is provided with a cover that covers at least the upper side between the left and right side plates.

  In Claim 3, the vertical axis | shaft rotary cutting device which cut | disconnects the stem of the stem in the conveyance upstream part of the said conveying apparatus is hung between the right-and-left upper frames which comprise a conveying apparatus, and the upper part of the left-right side plate is said A reinforcing member that is fixed to the left and right upper frames and that connects the left and right upper frames and the left and right side plates is provided, and the reinforcing member includes at least a cover mounting portion that covers the side of the vertical rotary cutting device. Is provided.

As effects of the present invention, the following effects can be obtained.
That is, dust can be prevented from entering the drive portion of the roll, and wear can be reduced and the life can be extended. Further, it is possible to prevent dust from accumulating on the arm that supports the roll and cannot be swung up and down, or to prevent the dust from being caught in the chain of the driving means and increasing the rotational resistance. Further, dust can be prevented from accumulating on the cover covering the driving portion, and the labor of cleaning can be saved. Further, the side plate has a box structure, and the rigidity can be increased.

The side view which showed the whole structure of the sugarcane harvesting machine. The front view which showed the whole structure of the sugarcane harvesting machine. The perspective view of a base cutter, a take-in rotor, and a conveying apparatus. The perspective view of the state which removed the cover of the conveying apparatus. The perspective view of the state which removed the right cover of the front conveyance apparatus. The side view of the state which removed the left cover of the front conveyance apparatus. The side view of the state which removed the left cover and left side board of the front conveyance apparatus.

First, the overall structure of the sugarcane harvester 1 will be described with reference to FIGS. 1 and 2. In the description, the front-rear direction is defined with the F direction as the front.
The sugarcane harvesting machine 1 supports a body frame 30 on a traveling unit 10 formed of a crawler traveling device, and a cutting device, a transport device, a processing unit, a wind sorting device 7 and a discharge unit 80 are attached to the body frame 30. A cutting part mounting frame 31 is vertically fixed to the left and right of the front part of the machine body frame 30, and a top cutter 17 is mounted to the front from the upper part of the cutting part mounting frame 31 via a parallel link mechanism 32. Crop dividers 2 and 2 serving as a pair of left and right pulling devices are attached to the front portion of the attachment frame 31 via the lifting link mechanism 12. The traveling unit 10 may be a foil type.

  Since the crop divider 2 is configured symmetrically, only one of the left and right sides will be described. The crop divider 2 is supported at the front part of the weeding frame 2a which is tilted backward, and the augers 2b and 2c are arranged in parallel with the weeding frame 2a so as to be rotatable, and is provided at the upper part of the weeding frame 2a. Driven by the hydraulic motors 2d and 2e. A weeding tool 40 having a substantially triangular shape in side view protrudes forward from the lower part of the weeding frame 2a. In this way, it is pulled into the plane while causing sugarcane.

  The top cutter 17 is arranged to be movable up and down in front of the crop divider 2, and the parallel link mechanism 32 is moved up and down so that the height can be adjusted by expansion and contraction of the hydraulic cylinder. The top cutter 17 includes a cutting blade at the lower left and right center, and includes a guide bar 33 and a guide plate 34 that protrude from the left and right sides of the cutting blade to the left and right outer sides so that the upper part of the sugar cane is moved to the left and right center. In this way, unnecessary leaf portions on the upper part of the sugarcane are brought to the left and right center of the machine body and cut by the cutting blade.

  Behind the left and right crop dividers 2, 2, a scraping rotor 13, a base cutter 3 serving as a cutting device, and a front conveying device 4 are supported by an upper frame 14. A pair of left and right upper frames 14 are provided, and the rear part is pivotally supported by the body frame 30 at the front end position of the rear conveying device 5 so as to be vertically rotatable. A hydraulic cylinder is interposed between the front portion of the upper frame 14 and the body frame 30, and the base cutter 3, the take-in rotor 13, and the front conveying device 4 are moved up and down by expanding and contracting the hydraulic cylinder. Can be adjusted.

The base cutter 3 includes a plurality of support cylinders 3a and 3a that are suspended downward from the front portion of the upper frame 14, and a plurality of support cylinders that are fixed to the outer periphery of a support disk that is fixed to the lower ends of the support cylinders 3a and 3a. The cutting blades 3b, 3b,..., Rod-like spirals 3c and 3c fixed on the support disk, and a hydraulic motor that rotationally drives the cutting blades 3b and spirals 3c.
The scraping rotor 13 is composed of a rotating shaft that has an axial center in the left-right direction at the front ends of the left and right upper frames 14 and is rotatably supported, and a blade body fixed on the rotating shaft, The rotating shaft is rotationally driven by a hydraulic motor.

The transport device includes a front transport device 4 and a rear transport device 5. A cabin 19 is disposed above the front portion of the front transport device 4, and an engine 15 is disposed above the rear portion of the front transport device 4. The rear part of the front conveying device 4 is located at the front part of the rear conveying device 5. The configurations of the front transport device 4 and the rear transport device 5 will be described later.
In this way, the sugarcane stem stem is scraped by the rotation of the scraping rotor 13, the stock is cut by the rotation of the cutting blades 3b and 3b of the base cutter 3, and at the same time the lower end of the stem stem by the rotation of the spirals 3c and 3c ( Root) is jumped up. The sugarcane bounced up is drawn from the base into the front conveying device 4 arranged immediately after that, and is sent obliquely rearward and upward by the feed roller of the front conveying device 4 and is inherited by the rear conveying device 5 and obliquely rearward and upward. It is conveyed to.

  A chopping device 6 serving as a processing unit is disposed at the rear of the rear conveying device 5. The chopping device 6 is composed of a cutter. The cutter has a blade blade fixed on a pair of upper and lower cutter shafts having an axial center in the left-right direction, and when the sugar cane passes between the upper and lower blade blades rotating, it is blown backward while being cut at a predetermined size. Yes.

  The wind selection device 7 includes a blower case 7a provided at the upper rear portion of the chopping device 6 and a blower accommodated in the blower case 7a. The lower and upper sides of the blower case 7a are opened, the lower part of the blower case 7a is communicated with the chopping device 6, and the upper side serves as a discharge port for leaves and dust. The blower case 7a can be rotated about the vertical axis, and the discharge direction can be changed. The blower is housed in the blower case 7a with the vertical direction as the axis, and by rotating the blower, a high-speed air flow from the bottom to the top is generated, and the leaf and dust after being shredded are sucked upward. The heavy stem stem falls to the front part of the lower discharge part 80.

  The discharge unit 80 includes a discharge conveyor 8, a hopper 18, a swivel base 20, a flap 21 and the like. The discharge conveyor 8 is constituted by a slat conveyor having plate bodies fixed on an endless flat belt at a predetermined interval. The discharge conveyor 8 is supported on a swivel base 20 provided at the lower part of the machine frame 30, The swivel base 20 is supported so as to be able to turn left and right about the vertical direction as an axis. The discharge conveyor 8 is rotated left and right by an expansion / contraction drive of a hydraulic cylinder so that the discharge direction can be changed. A hopper 18 is provided on the front part of the discharge conveyor 8 so as to receive sugar cane falling from the wind separator 7. A flap 21 is provided on the rear end of the discharge conveyor 8, and the discharge direction can be changed by rotating back and forth.

  As shown in FIGS. 3 to 7, the front transport device 4 includes an upper roll 402 and a lower roll 403 that are arranged vertically opposite to each other between left and right side plates 401 and 401 with a predetermined interval in the front-rear direction. Multiple sets are arranged. In the upper roll 402, the rotation shaft 404 is inserted and fixed at the axial center position of the cylinder 417, and the conveying plates 407, 407,. Established. In the lower roll 403, discs 406, 406... Are fixed on the rotary shaft 405 at a predetermined interval, and the outer side of the discs 406, 406. 407... Are laid out radially every predetermined angle. Thus, by rotating the upper roll 402 and the lower roll 403 in opposite directions, the sugarcane after cutting can be passed between the upper roll 402 and the lower roll 403 and conveyed backward.

  The left and right sides of the rotating shaft 404 of the upper roll 402 pass through holes 401a and 401a opened in the side plates 401 and 401, and are rotatably supported by the arms 408 and 408. The arm 408 is formed in a substantially triangular shape in a side view, and one end of the rotation shaft 404 is rotatably supported on one top portion of the arm 408, the other top portion is rotatably supported on the swing shaft 409, and the remaining top portion is reinforced. One end of the rod 410 is fixed. The left and right sides of the swing shaft 409 are rotatably supported by the side plates 401 and 401, and the left and right sides of the reinforcing rod 410 are fixed to the arms 408 and 408 through holes 401 b and 401 b opened in the side plates 401 and 401. The holes 401a and 401b are formed as arc-shaped elongated holes in the vertical direction around the swing shaft 409. A stopper 411 is disposed below the arm 408 and restricts the downward rotation of the arm 408 downward.

  Thus, the upper roll 402 is supported so as to be swingable up and down around the swing shaft 409. In the present embodiment, four upper rolls 402 are arranged in the front-rear direction, and the first upper roll 402, the arm 408, and the reinforcing rod 410 from the front are the second upper roll 402, the arm 408, and the reinforcing rod 410. These are disposed substantially symmetrically with respect to the swing shaft 409. Similarly, the third and fourth are also arranged approximately symmetrically in the front-rear direction.

  A sprocket 412 is fixed to one end of the rotating shaft 404, and sprockets 413 and 413 are fixed to the left and right sides of the swing shaft 409. A chain 415 is wound between the sprocket 412 and the sprocket 413. Power can be transmitted. Further, in the front-rear direction, a drive shaft 416 is laid across the side plates 401 and 401 between the swing shaft 409 and the swing shaft 409, and sprockets 414 and 414 are fixed to one end of the drive shaft 416 for driving. The other end of the shaft 416 is connected to the output shaft of the hydraulic motor 417. The hydraulic motor 417 is fixed to the right side plate 401 in this embodiment. A chain 419 is wound between a sprocket 414 on the drive shaft 416 and a sprocket 418 fixed on the swing shaft 409 so that power can be transmitted. In this way, power is transmitted from the hydraulic motor 417 to each upper roll 402 via a chain, a sprocket, or the like so that it can be rotated.

  Between the rotating shafts 405, 405, 405, 405 of the lower rolls 403, 404, 403, 403 arranged side by side in the front-rear direction, support shafts 422, 422, which rotatably support the intermediate gears 421, 421, 421 422 is fixed to the side plate 401. A gear 420 is fixed to one end (left end) of each rotating shaft 405 of the lower roll 403, and the gears 420, 420, 420, 420 are engaged with the intermediate gears 421, 421, 421, respectively. . Then, the other end of any one of the rotating shafts 405 is connected and fixed to the output shaft of the hydraulic motor 423. The hydraulic motor 423 is fixed to the right side plate 401. Thus, the power from the hydraulic motor 423 is transmitted to the rotary shaft 405 via the gear 420 and the intermediate gear 421 so as to drive the lower roll 403 in rotation.

  The upper portions of the side plates 401 and 401 are fixed to the upper frames 14 and 14, and the upper portion of the front conveying device 4, that is, the upper side of the upper roll 402 is covered with an upper cover 424. In other words, the left and right sides of the upper cover 424 are fixed to the upper surfaces of the side plates 401 and 401. Although the upper cover 424 is divided into three in this embodiment, it may be divided into a single piece or a plurality of pieces, and is not limited.

  Driving means such as an arm 408, a stopper 411, sprockets 412, 413, and 414, chains 415 and 419, power transmission means, and the like disposed on the upper left side of the left side plate 401 are covered with an upper left side cover 425. Driving means and power transmission means such as a gear 420 and an intermediate gear 421 disposed at the lower left side of the left side plate 401 are covered by a lower left side cover 427 and are formed at a step portion between the upper left side cover 425 and the lower left side cover 427. An inclined cover 428 having an outwardly inclined surface is provided. An edge portion 401c is formed around the side plate 401, and a storage space is formed between the left side plate 401, the upper left side cover 425, the lower left side cover 427, and the inclined cover 428, and driving means and power transmission means are provided. It can be stored. Furthermore, a crosspiece member 429 is fixed to the outer surface of the edge 401c so that the upper left side cover 425, the lower left side cover 427, and the inclined cover 428 can be firmly fixed.

  Further, driving means and power transmission means such as the arm 408, the stopper 411, the sprockets 412 and 413, the chain 415 and the like arranged on the upper right side of the right side plate 401 are covered with right side covers 426 and 426. An edge 401c is also formed on the right side plate 401, and a crosspiece member 429 is also attached.

  Between the front parts of the left and right upper frames 14, 14, a base cutter 3 serving as a vertical axis cutting device is disposed, and the upper part is covered with an upper cover 433. The left and right sides of the base cutter 3 are covered with reinforcing members 430 and 430 and side covers 431 and 431. The front portion of the reinforcing member 430 is fixed via an attachment stay 432 shown in FIG. 6, and the rear portion is fixed to the front edge portion 401 c of the side plate 401. The upper part of the side cover 431 is fixed to the front lower part of the reinforcing member 430.

  The rear conveying device 5 has substantially the same configuration as the configuration in which the upper and lower pairs of the upper roll 402 and the lower roll 403 of the front conveying device 4 are arranged in the front and rear, and includes an arm, a reinforcing rod, an intermediate gear, and the like. In addition, an upper cover 440, an upper left side cover 441, a right side cover 442, a lower left side cover 443, and an inclined cover 444 are provided. The front conveying device 4 is supported by the body frame 30 so that the rear portions of the upper frames 14 and 14 are rotatable, and can be moved up and down. The rear conveying device 5 is fixed to the body frame 30 so as to be lowered forward.

  In such a configuration, sugarcane scraped by the scraping rotor 13 and cut by the base cutter 3 is transported rearward by the front transport device 4 and the rear transport device 5 with the stem stem lying down. At this time, when the stem amount increases, the upper roll 402 swings up and down around the swing shaft 409 by the arm 408 according to the amount. Thus, it can be conveyed backward without clogging. During this transport, the upper portions of the front transport device 4 and the rear transport device 5 are covered with the upper covers 424 and 440, so that foreign matters and dust are prevented from being scattered.

  As described above, the base cutter 3 serving as a cutting device, the transport device including the front transport device 4 and the rear transport device 5 for transporting the stem stem cut by the base cutter 3 in a lying position, and the stem transported by the transport device In the case of a sugarcane harvesting machine 1 having a processing unit comprising a chopping device 6 for cutting a trunk with a predetermined dimension, when the front conveying device 4 (same as the rear conveying device 5) is used as the conveying device, the left and right side plates 401 and 401 are between The plurality of upper rolls 402 and the lower rolls 403 are configured to rotate opposite to each other, and the upper rolls 402 are vertically moved to the left and right side plates 401 and 401 so that the upper rolls 402 can swing up and down with respect to the lower rolls 403 depending on the amount of stems to be conveyed Direction holes 401a and 401b are provided, and covers 425, 427, and 428 are provided to cover the driving means for rotationally driving the upper roll 402 and the lower roll 403. Since the upper surface of the inclined cover 428 at the stepped portion of the bar is provided with an outwardly downward inclined surface, it is possible to prevent dust from entering the driving portions of the upper roll 402 and the lower roll 403, thereby reducing wear and extending the life. be able to. Further, it can be prevented that dust accumulates on the arm 408 and obstructs the vertical swing of the upper roll 402, and it is possible to prevent the dust from being caught in the chains 415 and 419 and increasing the rotational resistance. Further, since the stepped portion is covered with the inclined cover 428, dust can be prevented from accumulating on the cover, and the labor of cleaning can be saved. Further, the side plate 401, the upper left side cover 425, the lower left side cover 427, and the inclined cover 428 form a box structure, and the rigidity can be increased.

  Further, the front transport device 4 (same as the rear transport device 5) as a transport device is configured to transport stems between the left and right side plates 401 and 401, and at least the upper cover 424 that covers the upper side between the left and right side plates 401 and 401. Therefore, it is possible to prevent dust, dirt, and the like from entering the transfer device from the outside. Further, it is possible to prevent dust from being scattered from the transfer device to the outside, in particular, to the engine side disposed above the front transfer device 4.

  In addition, a base cutter 3 serving as a vertical axis cutting device that cuts the stem stock at the upstream conveyance portion of the front conveyance device 4 is suspended between the left and right upper frames 14 and 14 constituting the front conveyance device 4. The upper portions of the left and right side plates 401 and 401 are fixed to the left and right upper frames 14 and 14, and the reinforcing members 430 and 430 for connecting the left and right upper frames 14 and 14 and the left and right side plates 401 and 401 are provided. Since 430 is provided in a range including the attachment portion of the side cover 431 that covers the side of the base cutter 3, the base cutter 3 is cantilevered between the upper frames 14, 14. It can be reinforced by the reinforcing member 430, and even if the base cutter 3 is pushed into hard soil, it does not bend, and it is not necessary to increase the strength of the upper frame 14, and it is easy. Made up the rigidity in the configuration, it is possible to prevent deformation. Further, the side plate 401, the edge 401c, the upper left side cover 425 (the right side cover 426), the lower left side cover 427, and the inclined cover 428 have a box structure with high rigidity, and the reinforcing member 430 is fixed to the box structure. Therefore, the upper frame 14, the reinforcing member 430, the side plate 401, and the cover (upper left side cover 425, right side cover 426, lower left side cover 427, inclined cover 428) are reinforced with each other to further increase the strength. Can be up. Further, since the reinforcing member 430 partially covers the side of the base cutter 3 and serves as a cover, the side cover 431 can be configured to be small, and the cost can be reduced.

DESCRIPTION OF SYMBOLS 1 Sugarcane harvesting machine 3 Base cutter 4 Front conveyance apparatus 5 Rear conveyance apparatus 6 Chopping apparatus 14 Upper frame 401 Side plate 402 Upper roll 403 Lower roll 424 Upper cover 425 Left upper side cover 427 Left lower side cover 428 Inclined cover 430 Reinforcement member

Claims (3)

  A sugarcane harvester comprising a mowing device, a transporting device that transports a stem stem cut by the mowing device in a lying position, and a processing unit that cuts the stem stem transported by the transporting device with a predetermined dimension, the transporting device comprising: A plurality of rolls are oppositely rotated between the left and right side plates, and holes are provided in the left and right side plates so that the upper rolls can swing relative to the lower rolls depending on the amount of stems to be conveyed. A sugarcane harvesting machine, characterized in that a cover is provided to cover the means for rotational driving, and an upper and lower inclined surface is provided on the upper surface of the cover.   A sugarcane harvester comprising a mowing device, a transporting device that transports a stem stem cut by the mowing device in a lying position, and a processing unit that cuts the stem stem transported by the transporting device with a predetermined dimension, the transporting device comprising: A sugarcane harvesting machine characterized in that the stem is conveyed between the left and right side plates, and a cover is provided to cover at least the upper side between the left and right side plates.   A vertical rotary cutting device that cuts the stem stem stock at the transport upstream part of the transport device is suspended between the left and right upper frames constituting the transport device, and the upper portions of the left and right side plates are fixed to the left and right upper frames. And a reinforcing member that connects the left and right upper frames and the left and right side plates, and the reinforcing member is provided in a range including at least a cover mounting portion that covers the side of the vertical rotary cutting device. The sugarcane harvesting machine according to claim 1 or 2.

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