JP6999744B2 - Sugar cane harvester - Google Patents

Description

The present invention relates to a sugar cane harvester.

Conventionally, a technique has been known in which a plurality of pairs of upper and lower rolls are arranged in the front-rear direction in order to transport sugarcane cut by a cutting device backward while holding it in a sideways posture (for example, Patent Document 1 and Patent Document 2). reference).

Jikkai Akira 58-167528 Gazette Japanese Unexamined Patent Publication No. 59-45813

However, in the case of the techniques in Patent Documents 1 and 2, it is not a configuration in which a cover or the like covers a plurality of pairs of rolls, a chain for rotationally driving the rolls, a sprocket, a shaft, a side plate, or the like. Therefore, the dust generated when transporting the cut sugar cane is discharged upward and sideways, and the dust flies around and pollutes the surroundings.

It is an object of the present invention to provide a sugar cane harvester capable of ensuring rigidity and preventing deformation with a simple configuration in a configuration supporting a cutting device for cutting the stem stem at the upstream portion of the transport of the transport device. And.

The problem to be solved by the present invention is as described above, and next, the means for solving this problem will be described.

That is, in claim 1, a cutting device for cutting the stem stem, a transport device for transporting the stem stem cut by cutting the stem stem by the cutting device, and a stem stem transported by the transport device. A sugar cane harvester provided with a processing device for cutting the stem, wherein the transport device is configured by arranging a transport member between side plates and is supported by a frame member, and below the frame member, the transport member is described . A reaping device is provided, and the reaping device is supported between the frame members so as to cut the stem stem at the upstream portion of the transport of the transport device, and the frame is on the side of the reaping device. A connecting member for connecting the member and the side plate is provided, and the upper portion of the connecting member is fixed to the front portion of the frame member and the rear portion is fixed to the front portion of the side plate .

As the effect of the present invention, the following effects are exhibited.
That is, the cutting device of the sugar cane harvester is cantilevered between the frame members so as to cut the stem stem at the upstream portion of the transport of the transport device, but the frame member, the side plate, and the connecting member are separated. Since it is configured to reinforce each other, it is possible to increase the rigidity of the frame member with a simple configuration and prevent deformation.

A side view showing the overall configuration of a sugar cane harvester. Front view showing the overall configuration of a sugar cane harvester. Perspective view of base cutter, scraping rotor and transfer device. Perspective view with the cover of the transport device removed. A perspective view of the front transport device with the right cover removed. Side view of the front transport device with the left cover removed. Side view of the front transport device with the left cover and left plate removed.

First, the overall structure of the sugar cane harvester 1 will be described with reference to FIGS. 1 and 2. In addition, the front-rear direction is defined with the F direction as the front, and the description will be given. The sugar cane harvester 1 supports a machine frame 30 on a traveling unit 10 made of a crawler type traveling device, and a cutting device, a transport device, a processing unit, a wind selection device 7, and a discharge unit 80 are attached to the machine frame 30. The cutting section mounting frame 31 is fixed in the vertical direction on the left and right sides of the front portion of the machine frame 30, and the top cutter 17 is mounted forward from the upper portion of the cutting section mounting frame 31 via the parallel link mechanism 32. A pair of left and right raising devices, crop dividers 2 and 2, are mounted on the front portion of the mounting frame 31 via an elevating link mechanism 12. The traveling unit 10 may be a foil type.

Since the crop divider 2 is symmetrically configured, one of the left and right sides will be described. The crop divider 2 is provided on the upper part of the weeding frame 2a in which the augers 2b and 2c are arranged substantially parallel to the weeding frame 2a and rotatably supported on the front part of the weeding frame 2a which is arranged tilted backward. It is driven by the hydraulic motors 2d and 2e. A side-viewing substantially triangular-shaped weeding tool 40 is projected forward from the lower part of the weeding frame 2a. In this way, it pulls into the cabin while causing sugar cane.

The top cutter 17 is arranged so as to be able to move up and down in front of and above the crop divider 2, and the parallel link mechanism 32 is moved up and down so as to be adjustable in height by expanding and contracting the hydraulic cylinder. The top cutter 17 is provided with a cutting blade at the center of the lower left and right, and is provided with a guide rod 33, a guide plate 34, and the like protruding outward from the left and right sides of the cutting blade so as to bring the upper part of the sugar cane toward the center of the left and right. In this way, the unnecessary leaf part on the upper part of the sugar cane is moved to the center of the left and right sides of the machine body and cut by the cutting blade.

Behind between the left and right crop dividers 2 and 2, a scraping rotor 13, a base cutter 3 serving as a cutting device, and a front transfer device 4 are supported by an upper frame 14. A pair of left and right upper frames 14 are provided, and the rear portion is pivotally supported on the machine frame 30 at the front end position of the rear transfer device 5 so as to be vertically rotatable. A hydraulic cylinder is interposed between the front portion of the upper frame 14 and the machine frame 30, and by expanding and contracting the hydraulic cylinder, the base cutter 3, the suction rotor 13, and the front transfer device 4 are raised and lowered to a height. Is adjustable.

The base cutter 3 serving as the cutting device is a vertical axis rotary cutting device that cuts the root of the stem of sugar cane at the upstream portion of the transport of the front transport device 4, and the base cutter 3 is from the front portion of the upper frame 14. The left and right support cylinders 3a / 3a vertically suspended downward, and a plurality of cutting blades 3b / 3b ... Fixed on the outer periphery of the support disc fixed at the lower end of the support cylinders 3a / 3a. It is composed of a rod-shaped spiral 3c / 3c fixed on a disk, a hydraulic motor that rotationally drives the cutting blade 3b and the spiral 3c, and the like. The suction rotor 13 includes a rotating shaft having an axial center in the left-right direction at the front ends of the left and right upper frames 14 and being rotatably supported, and a blade body fixed on the rotating shaft. The rotary shaft is rotationally driven by a hydraulic motor.

The transfer device includes a front transfer device 4 and a rear transfer device 5, a cabin 19 is arranged above the front portion of the front transfer device 4, and an engine 15 is arranged above the rear portion of the front transfer device 4. The rear portion of the front transport device 4 is located at the front portion of the rear transport device 5. The configurations of the front transfer device 4 and the rear transfer device 5 will be described later. In this way, the stem of sugarcane is scraped by the rotation of the scraping rotor 13, and the stem 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 by the rotation of the spiral 3c and 3c ( The root) is flipped up. The sugar cane that has been bounced up is drawn from the root into the front transport device 4 arranged immediately after that, is sent diagonally backward and upward by the feed roller of the front transport device 4, and is inherited by the rear transport device 5 and diagonally backward and upward. Will be transported to.

A chopping device 6 serving as a processing unit is arranged at the rear portion of the rear transfer device 5. The chopping device 6 comprises a cutter. The cutter has blade blades fixed on a pair of upper and lower cutter shafts that have a center of axis in the left-right direction, and when the sugar cane passes between the upper and lower blade blades that rotate, it is cut to a predetermined size and is blown backward. There is.

The wind selection device 7 includes a blower case 7a provided at the rear upper portion of the chopping device 6 and a blower housed 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 is a discharge port for leaves, dust, and the like. The blower case 7a is rotatable about the axis in the vertical direction, 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 is generated from the bottom to the top, and the leaves and dust after shredding are sucked upward to the side. Allows drainage toward or posterior, and heavy stems fall to the anterior part of the lower drainage section 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 composed of a slat conveyor in which plates are fixed at predetermined intervals on an endless flat belt, and the discharge conveyor 8 is supported on a swivel table 20 whose lower portion is provided at the rear of the machine frame 30. The swivel base 20 is supported so as to be rotatable left and right with the vertical direction as the axis. The discharge conveyor 8 is rotated left and right by the expansion / contraction drive of the hydraulic cylinder, and the discharge direction can be changed. A hopper 18 is provided on the front portion of the discharge conveyor 8 so as to receive sugar cane falling from the wind selection device 7. A flap 21 is provided on the rear end of the discharge conveyor 8 so that the discharge direction can be changed by rotating the flap 21 back and forth.

As shown in FIGS. 3 to 7, in the front transfer device 4, the upper roll 402 and the lower roll 403 arranged vertically facing each other between the left and right side plates 401 and 401 are spaced apart from each other in the front-rear direction. Multiple sets are arranged. In the upper roll 402, the rotating shaft 404 is inserted and fixed at the axial center position of the tubular body 417, and the transport plates 407, 407 ... Will be set up. In the lower roll 403, disks 406, 406, ... Are fixedly attached to the rotating shaft 405 at predetermined intervals, and the outer side of the disk 406, 406, ... 407 ... Are laid horizontally at predetermined angles. In this way, the upper roll 402 and the lower roll 403 are rotated in opposite directions so that the cut sugar cane can pass between the upper roll 402 and the lower roll 403 and be conveyed backward.

The left and right sides of the rotation shaft 404 of the upper roll 402 pass through the 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 configured in a substantially triangular shape in a side view, one end of the rotating shaft 404 is rotatably supported by one top of the arm 408, the other top is rotatably supported by the swing shaft 409, and the remaining top 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 pass through the holes 401b and 401b opened in the side plates 401 and 401 and are fixed to the arms 408 and 408. The holes 401a and 401b are formed into arcuate elongated holes in the vertical direction about the swing shaft 409. A stopper 411 is arranged below the arm 408 to regulate the downward rotation of the arm 408 downward.

In this way, the upper roll 402 is supported so as to be vertically swingable around the swing shaft 409. Further, 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. , Are arranged substantially symmetrically in the front-rear direction with respect to the swing axis 409. Similarly, the third and fourth are arranged substantially symmetrically in the front-back direction.

A sprocket 412 is fixed to one end of the rotary shaft 404, sprocket 413 and 413 are fixed to both left and right sides of the swing shaft 409, and a chain 415 is wound between the sprocket 412 and the sprocket 413. It is possible to transmit power. Further, in the front-rear direction, a drive shaft 416 is laid horizontally between the side plates 401 and 401 between the swing shaft 409 and the swing shaft 409, and sprockets 414 and 414 are fixedly installed at one end of the drive shaft 416 to drive the drive shaft 416. The other end of the shaft 416 is connected to the output shaft of the hydraulic motor 417. In this embodiment, the hydraulic motor 417 is fixed to the right side plate 401. A chain 419 is wound between the sprocket 414 on the drive shaft 416 and the 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 the hydraulic motor can be rotationally driven.

Support shafts 422, 422, which rotatably support the intermediate gears 421, 421, and 421 between the rotation shafts 405, 405, 405, and 405 of the lower rolls 403, 404, 403, and 403 arranged side by side in the front-rear direction. 422 is fixed to the side plate 401. Gears 420 are fixed to one end (left end) of each rotation shaft 405 of the lower roll 403, and the gears 420, 420, 420, and 420 are meshed with the intermediate gears 421, 421, and 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. In this way, the power from the hydraulic motor 423 is transmitted to the rotary shaft 405 via the gear 420 and the intermediate gear 421 to rotationally drive the lower roll 403.

The upper portion of the side plates 401 and 401 is fixed to the upper frames 14 and 14, and the upper portion of the front transfer device 4, that is, the upper portion of the upper roll 402 is covered with the 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 the present embodiment, the upper cover 424 may be divided into one or a plurality of pieces, and the present invention is not limited to the upper cover 424.

Further, the drive means such as the arm 408, the stopper 411, the sprocket 412, 413, 414, and the chain 415, 419, and the power transmission means, which are arranged on the upper left side of the left side plate 401, are covered with the upper left side cover 425. The drive means and power transmission means such as the gear 420 and the intermediate gear 421 arranged in the lower part on the left side of the left side plate 401 are covered by the lower left side cover 427, and are covered by the step portion between the upper left side cover 425 and the lower left side cover 427. , An inclined cover 428 having an outwardly downward 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 to provide driving means and power transmission means. It is designed so that it can be stored. Further, a crosspiece member 429 is fixed to the outer surface of the edge portion 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, the driving means and the power transmission means such as the arm 408, the stopper 411, the sprocket 412 / 413, and the chain 415 arranged on the upper right side of the right side plate 401 are covered with the right side cover 426.426. An edge portion 401c is also formed on the right side plate 401, and a crosspiece member 429 is also attached.

The base cutter 3 is disposed between the front portions of the left and right upper frames 14 and 14, and the upper portion is covered with the 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 the mounting stay 432 shown in FIG. 6, and the rear portion is fixed to the front edge portion 401c of the side plate 401. The upper portion of the side cover 431 is fixed to the front lower portion of the reinforcing member 430.

The rear transfer device 5 has substantially the same configuration as the configuration in which two upper and lower pairs of the upper roll 402 and the lower roll 403 of the front transfer device 4 are arranged in the front-rear direction, and includes an arm, a reinforcing rod, an intermediate gear, and the like. Further, the upper cover 440, the upper left side cover 441, the right side cover 442, the lower left side cover 443, and the inclined cover 444 are provided, and the cover configuration is substantially the same as that of the front transport device 4, and the mounting configuration is substantially the same. In the front transport device 4, the rear portions of the upper frames 14 and 14 are rotatably supported by the machine frame 30 so that they can be moved up and down, and the rear transport device 5 is fixed to the machine frame 30 in a downward direction.

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

As described above, the base cutter 3 as a cutting device, the transport device consisting of the front transport device 4 and the rear transport device 5 for transporting the stems cut by the base cutter 3 in a sideways posture, and the stems transported by the transport device. A sugar cane harvester 1 provided with a processing unit including a chopping device 6 for cutting a trunk to a predetermined size, and in the case of a front transfer device 4 (same for the rear transfer device 5) as a transfer device, between the left and right side plates 401 and 401. The upper roll 402 and the lower roll 403 are configured to rotate in opposition to each other, and the upper roll 402 can swing up and down with respect to the lower roll 403 depending on the amount of stem stem to be transported. Holes 401a and 401b in the direction 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 surface is provided, it is possible to prevent dust from entering the driving portions of the upper roll 402 and the lower roll 403, and it is possible to reduce wear and extend the life. Further, it is possible to prevent dust from accumulating on the arm 408 and hindering the vertical swing of the upper roll 402, and to prevent dust from being caught in the chains 415 and 419 to increase the rotational resistance. Further, since the stepped portion is covered with the inclined cover 428, it is possible to prevent dust from accumulating on the cover, and it is possible to save the trouble of cleaning. 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 improved.

Further, the front transport device 4 as the transport device (the same applies to the rear transport device 5) is configured to transport the stem trunk between the left and right side plates 401 and 401, and the upper cover 424 that covers at least the upper side between the left and right side plates 401 and 401. Is provided, so that it is possible to prevent dust, dirt, etc. from being mixed into the transport device from the outside. Further, it is possible to prevent dust from scattering from the transport device to the outside, particularly to the engine side arranged above the front transport device 4.

Further, the base cutter 3 is hung between the left and right upper frames 14 and 14 constituting the front transfer device 4, and 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 left and right upper frames 14 and 14 are fixed. Since the reinforcing members 430 and 430 for connecting the left and right side plates 401 and 401 are provided and the reinforcing member 430 is provided in the range including the mounting portion of the side cover 431 that covers the side of the base cutter 3, the base cutter 3 is the upper frame. Although it is cantilevered between 14 and 14, the upper frame 14 can be reinforced by the reinforcing member 430, and even if the base cutter 3 plunges into hard soil, it will not bend, and it is necessary to increase the strength of the upper frame 14 unnecessarily. It is possible to increase the rigidity with a simple configuration and prevent deformation.

Further, the side plate 401, the edge 401c, the upper left side cover 425 (right side cover 426), the lower left side cover 427, and the inclined cover 428 have a box structure and have high rigidity, and the reinforcing member 430 is fixed to this 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) reinforce 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, the side cover 431 can be configured to be small and the cost can be reduced.

1 Sugar cane harvester 3 Base cutter 4 Front transfer device 5 Rear transfer device 6 Chopping device 14 Upper frame 401 Side plate 402 Upper roll 403 Lower roll 424 Upper cover 425 Upper left side cover 427 Lower left side cover 428 Inclined cover 430 Reinforcing member

Claims (1)

It is provided with a cutting device for cutting the stem stem, a transport device for transporting the stem stem cut by cutting the stem stem by the cutting device, and a processing device for cutting the stem stem transported by the transport device. It ’s a sugar cane harvester,
The transport device is configured by arranging a transport member between the side plates, and is supported by the frame member.
The cutting device is provided below the frame member.
The cutting device is supported between the frame members so as to cut the root of the stem stem at the transport upstream portion of the transport device.
A connecting member for connecting the frame member and the side plate is provided on the side of the cutting device.
The upper part of the connecting member is fixed to the front part of the frame member, and the rear part is fixed to the front part of the side plate.
A sugar cane harvester that features this.

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