JPH0612965B2 - Grain culm transport device for reaper - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a grain culm conveying device for conveying a slaughtered grain culm to a thresher in a multi-row reaper.

A multi-row reaper with three or more lines is formed by a pair of left and right root conveyors (front) arranged behind the cutting blade in the shape of a C, and a C-shape behind the raising device above it. It is provided with a pair of left and right tip conveying devices (front) that are arranged. For example, in the case of four-row cutting, the four-row culms that are raised by the raising device and cut by the cutting blade are the left and right roots, The root part and the tip part are conveyed by two rows by the grain culm conveying device (front). Then, a tip conveying device (rear) that extends backward so as to form a reverse Y time line with these.
And the root transport device (rear) are arranged vertically, and the grain culms that have been transported two by two merge into four bundles,
The tip and the root carrier (rear) The head part and the root part are respectively taken over and carried to the thresher. The grain culm transporting device (rear) is rotated about the thresher side pivotal support so that the relative position to the end of the grain culm transporting device (front) is in the grain direction of the grain stalk. It changes and the handling depth during threshing is adjusted.

However, in the conventional grain culm transporting device configured as described above, the grain culm transporting device (rear) rotates to handle and adjust the depth, so that the grain culm transporting device (front), the end, and the tip transfer. If the culm is not conveyed smoothly unless it is separated from the starting end of the device (rear) to some extent, and if the culm is a long culm, it is not taken over and the tip of the culm is raised. May interfere with equipment and cause shedding. However, there has been a drawback that the root carrier device (front) is brought into contact with the root carrier device (rear) side in order to facilitate the handing over, and thus shedding occurs or the tip portion is not taken over and remains stuck.

The present invention has been made in view of the above points, and is rotated above the transport terminal end portion of the front tip transport device desired by the transport start end portion of the rotatable rear grain culm transport device that also serves as the handle depth adjusting device. The provision of the scraping body provides a grain culm transporting device of a reaper that smoothly transfers the grain stalks from the front part to the rear part to improve the transporting performance. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 to 3 show an embodiment of a grain culm conveying device according to the present invention, and FIG. 1 is a side view of a part of a threshing machine running part of a combine harvester and a reaper, in which this is carried out. Is A in Fig. 1
A plan view is shown in FIG. 3, and FIG. 3 is an enlarged sectional view taken along line BB in FIG. In the figure, a threshing machine 3 having a threshing device and a sorting device is mounted on a traveling frame 2 that supports the left and right traveling crawlers 1, and a feed chain for transporting the threshing culms is provided on the side thereof. 4 is stretched. A mowing drive shaft 5, which is rotationally driven from the driving side, is horizontally supported by a mowing bearing provided at the upper front end of the threshing machine 3, and a pivot bearing provided at the mowing bearing is generally denoted by reference numeral 6 The post-mowing frame 7 of the reaper is pivotally supported rotatably. The lower end of the post-pruning frame 7 and the traveling frame 2 are connected by a hydraulic cylinder (not shown) so that the post-pruning frame 7 is rotated by operating the hydraulic cylinder. After cutting, inside the frame 7,
A transmission shaft 8 drivingly connected to the reaping drive shaft 5 is rotatably supported. Reference numeral 9 denotes a conductive frame which is flange-joined to the lower end of the post-pruning frame 7 at right angles thereto, and has a pair of left and right raising drive frames 10 extending in the machine width direction at its left and right ends. 11 is flange-joined, and a drive shaft 12 drivingly connected to the transmission shaft 8 by a bevel gear is rotatably supported in the series of frames 10, 9, 11. The weed rod stay 13 formed by a horizontal pipe 14a and a plurality of vertical pipes 14b is integrally formed on the weed rod stay 13 projecting forward from the outer ends of the left and right raising drive frames 10 and 11. Supported and each vertical pipe 14
At the tip of b, a grass body 15 is fixed which separates the grain culms in the field as the machine stand advances. Reference numeral 16 denotes a plurality of raising devices each having a plurality of lugs 16a and a raising chain 16c which runs in a chain case 16b. The raising devices 16 project obliquely upward from the respective frames 9, 10, 11. Both upper and lower ends are supported by a pipe 17 and a supporting rod 18 projecting from the vertical pipe 14b, and is configured to lift and convey the fallen grain culms to stand up.

The raising device 16 is drivingly connected to the drive shaft 12 in each of the frames 9, 10 and 11 to raise the pipe 17.
It is configured to be driven by a conduction shaft that penetrates the inside.

Further, at the rear part of the vertical pipe 14b, a clipper-shaped cutting blade 19 driven from the drive shaft 12 side is supported in parallel with the horizontal pipe 14a and close to the ground, so that the root part of the standing culm is cut. Is configured to take.

The raising drive frames 10, 1 behind the cutting blade 19
From FIG. 1, a pair of left and right support pipes 20 and 21 are provided so as to project obliquely upward, and a tip end portion thereof has a root transport device (front right) generally designated by 22 and a root transport device denoted by 23 ( The front and left) chain frames (not shown) are fixed to each other in a V shape. Of these, the root transport device (front right) 22 is equipped with a drive sprocket 25 axially attached to the tip of a conductive shaft 24 that is drivingly connected to the drive shaft 12 and penetrates through the support tube 20. A root chain 31 is stretched between the plurality of sprockets 26, 27, 28, 29 and 30 supported by the chain frame. The other root transport device (front left) 23 is provided with a drive sprocket 33 which is rotatably attached to the tip of a conductive shaft 32 which is drivingly connected to the drive shaft 12 and penetrates through the support tube 21. A root chain 40 is stretched between the sprocket 33 and a plurality of sprockets 34, 35, 36, 37, 38, 39 supported by the chain frame.

Then, on the starting end sprocket 26, 34 of both of the root transport devices (front) 22, 23, a rotary belt 41, 42 formed in the shape of a gear, and a sweeping belt having a large number of lugs integrally formed. 43 (not shown in FIG. 2) are concentrically and integrally provided, respectively.
By the rotation of 32, the root chains 31 and 40 and the rotary scraper 4142 rotate in the directions indicated by arrows B, C, D, and E in FIG. 2, respectively.

Although not shown, the left and right main chains 31, 4
Inside the triangular space surrounded by 0, the root chain 3
1, 40, a triangle-shaped scaffolding board for holding the root part of the grain culm is erected so that the edges are along the running ends of the root chains 31, 40. 44 is a left and right rotary scraper 4
A rotary scraper which has the same shape as that of 1, 42 and which is a non-driving rotary scraper, and which is loosely mounted on the shaft supported by the horizontal pipe 14a.
The arrow F is shown in the figure by the grain culm that is engaged with
The rotational force in the direction indicated by is given.

The sprockets 25, 28 and 33, 36 are all arranged on the non-operating side of the root chains 31, 40, and the front and rear sprockets 27, 29 and 35, 37 provide a sufficient wrap angle. There is.

A pair of left and right tip support tubes 45, which are enlarged and shown in FIG. 3, are fixed to the chain frame and project obliquely upward at the same position as the left and right sprockets 28, 36, and the central portions thereof are respectively provided. In the figure, a chain case 48 including a frame and a cover, which are respectively provided on the tip conveying device (front right) indicated by the reference numeral 46 and the tip conveying device (front left) indicated by the reference numeral 47, is formed into a V-shape. And is integrally formed. In each tip support tube 45, a tip drive shaft 49 to which the sprockets 28 and 36 are fixed is axially supported via ball pairing, and a drive sprocket 50 is mounted on the tip drive shaft 49 in a chain case. Four
It is located and fixed within 8. Between the drive sprocket 50 and a driven sprocket (not shown) pivotally attached to the front end of the chain case 48, a tip chain 52 having a large number of lugs 51 arranged at regular intervals is stretched. When the tip drive shaft 49 rotates, the tip drive shaft 49 travels in the same direction as the root conveyance direction indicated by unmarked marks B and C in the figure. When traveling, the lug 51 stands up while traveling around the front semicircle due to the action of the lug guide in the chain case 48, travels on the working side, and falls down when traveling around the rear semicircle and falls inside the chain case 48. Is stored in.

An unillustrated tip guide is supported on the tip chain 52 along the traveling path of the tip of the lug 51, and the tip of the grain culm is held and conveyed by the lug 51 and the tip guide. ing.

Further, a rotary scraping body 53 is fitted and fixed to the tip corners of the left and right tip driving shafts 49 by a snap ring so as to be prevented from coming off, and the grain tip ends released from its holding by the fall of the lug 51. Is rotated in the same direction as the orbiting direction of the lug 51 so as to be scraped into a conveying path of an ear tip conveying device (rear) 58 described later.

That is, this rotary scraping body 53 is located above the starting end portion of the tip conveying device (rear) 58 as shown in FIG. 1, and its tooth tips have the tip conveying device (rear) as shown in FIG. It is arranged so as to face the transportation operation area of 58.

Reference numeral 54 is a tip guide plate formed by a plate material in a V-shaped cross section, which is fixed to the chain case 16b of the raising device 16 and the chain case 48 of the tip conveying device (front left) 47 to connect them. In addition, a slit is provided therein for engaging the rotary scraping body 53 and retracting the rotary scraping body 53 to and from the tip transport path.

The positions of the left and right rotary scrapers 53 are set so as to be between the adjacent pulling devices 16 in a front view.

On the other hand, from the reaping bearing which rotatably supports the reaping drive shaft 5, a support pipe 56 which pierces the conveyance drive shaft 55 which is drivingly connected to the reaping drive shaft 5 and which axially supports is provided so as to project obliquely upward. The root transfer device (rear) 57 and the tip transfer device (rear) 58 are supported by this, and the support tube 56 is rotatably supported, so that both transfer devices can be operated by the operation from the cockpit. (Rear) 57 and 58 are integrated into a symbol P in FIG.
It is configured so that it can be rotated in the direction of arrow H around the point indicated by. The root transport device (rear) 57 is the transport drive shaft 5
The root chain 60 stretched between the sprocket on the 5 and the sprocket 59 at the front end of the chain frame (not shown), and the root of the grain stalk by the sling rod (not shown) supported along the running end thereof. It is configured so as to hold the portion and convey it in the direction indicated by arrow G in the figure, so that the conveyance start end portion has a phase overlapping with the conveyance end portion of the root conveyance device (front) 22, 23 in the conveyance direction. It is arranged. Further, the tip transfer device (rear) 58 is a chain case 61 which is supported by the support tube 56 and has its front end faced in the vicinity of the rotary scraper 53.
A tip chain (not shown) having a large number of lugs 62 arranged at regular intervals and running in a chain case 61 is provided, and a tip guide (not shown) is provided outside the lug 62. It is supported along the running path of the tip of.

The lug 62 and the tip guide are configured to hold the tip portion of the grain culm and convey it in the direction of arrow G. Further, the two transport devices (rear) 57, 58 are integrally rotated as described above, so that the relative position between the transport start end portion and both transport devices (front) 22, 23, 46, 47 is the transport grain. It changes to the grain direction of the culm, so that the handling depth at the time of threshing is adjusted.

Reference numeral 63 denotes a flat tip guide plate provided by connecting the chain case 16b of the raising device 16 and the chain case 48 of the tip transport device (front right) 46,
The trailing edge is erected so as to face the vicinity of the circulation path of the lugs 51 and 62, and is configured to lean and guide the tip portion of the transported grain stem.

Reference numeral 64 indicates a raising pipe 17 and a weeding rod 14.
Is a winding prevention cover that is provided by connecting it to the vertical pipe 14b, and is formed in a U-shaped cross section with a flat plate so as to cover a part of the rotary scraping body 44 and the scraping belt 43 in the central portion. , It is open to the front and rear and one side. By doing so, the left and right grain culm transport paths are blocked, and weeds etc. scratched by the right rotary scraper 41 are in the central rotary scraper 4.
It is configured to prevent winding around the shaft of No. 4, etc.

Further, since the cover 64 is open at the rear side, straw debris and weeds do not get stuck in the cover 64.

The operation of the reaper having the above-described structure will be described by taking a triple-row cutting as an example. When the machine stand moves forward, it is planted in the field 3
The grain culm regulations are stripped by the four grass bodies 15 and guided one by one between the adjacent vertical pipes 14b. The lug 16a of the raising device 16 rises while standing up at the lower end of the chain case 16b, so that two of
The ridges are erected by lifting and transporting the tip portion by the lugs 16a of the raising device 16 in the center and the left side where the lugs 16a rise in opposition to each other. Further, the remaining one strip is raised by the raising device 16 on the right side.

On the other hand, the root portion of the three-row grain culm is cut by the cutting blade 19 after being conveyed one by one by the three scraping belts 43.
As in the case of cutting, the tip portion is pulled up and released from the lug 16a of the device 16, and two rows of this grain culm are scraped in the directions E and F by the rotary scrapers 42 and 44 which rotate in mesh with each other. .

The remaining one strip is scraped by the rotary scraper 41 in the direction of arrow D. The two-row grain culm that has been scraped by the rotary scraping bodies 42 and 44 has the root portion and the tip portion of the root transport device (front left) 2
3 and the tip transfer device (front left) 47 respectively capture and transfer, and the one row of grain culm that is scraped by the rotary scraper 41 has the root part and the tip part of the root transfer device (front right). 22 and the tip conveying device (front right) 46 are supplemented and conveyed.

The left and right root transfer devices (front) 22, 23 merge at the tops of the V-shape, and then extend to the positions of the sprockets 30 and 38 with the working sides facing rearward. Is transported along.

Further, the tip portion is released from its holding by the inverted shape of the lug 51 before the root portion, but since the rotary scraping body 53 rotates in the circumferential direction of the lug 51 there, it is scraped backward. It is rarely taken over and conveyed by the lug 62 of the tip conveying device (rear) 58 that circulates while standing up from the opposite direction. After that, the root part is also taken over from the transport devices (front) 22, 23 to the transport device (rear) 57 and transported.

Then, when the grain culm in the field is changed from, for example, a short culm to a long culm, the grain culm conveying device (rear) 57 is operated by the operation from the cockpit.
When 58 is integrated and pivoted around the pivot point P in the direction in which the free end side rises, the root transport device (front) 32, 33, for example, holds a portion of 20 cm from the stock, but after taking over. In the root transport device (rear) 57 of, for example, 40 from the root
Since the position of cm will be held, and if it is transported and supplied to the threshing machine 3 as it is, the result will be that the grain culm is moved in the direction of the plant base and supplied, so that the tip position with respect to the handling barrel becomes long culm. The feed depth is adjusted to suit.

Then, in this embodiment, the raising device 16 and the chain case 48 of the tip conveying device (front left) 47 are connected by the tip guide plate 54 so that the teeth of the rotary scraping body 53 are projected and retracted from the slits. Because it was done, grain culm carrier (front left) 2
The grain culms conveyed by 3, 47 and raked by the rotary scraping body 53 lean against this tip guide plate 54 regardless of whether they are long culms or short culms and are conveyed, so that they can be prevented from falling over and take over smoothly. In addition, the winding around the shaft 49 or the rotary scraping body 53 is prevented, and the strength of the raising device 16 and the tip conveying device (front left) 47 becomes a reinforcing member.

In addition, in the present embodiment, an example in which the present invention is applied to a reaper for cutting 3 to 4 rows is shown, but reaping of 4 to 5 rows including 5 grass bodies and 4 rotary scrapers is performed. The same can be applied to the machine.

As is apparent from the above description, according to the present invention, in the grain culm transporting device of the reaper, the transporting start end portions of the rotatable grain culm transporting devices (rear) 57, 58 that also serve as the handling depth adjusting device. Since the rotary scraping body 53 is provided in the vicinity of the conveying end portions of the tip conveying devices (front) 46, 47 facing the front, the grain culm transfer ends of the front and rear grain culm conveying devices are separated from each other for adjusting the handling depth. However, the rotary scraping body 53 scrapes the grain stalks and transfers them to the rear part, so that the transfer is performed very smoothly and the transport performance is improved. Further, as in the embodiment, the rotary scraping body 53 drives the transmission shafts 24 and 3 for driving the tip conveying devices (front) 46 and 47.
If it is configured to be rotationally driven from the 2 side, the rotation transmission structure is extremely simple and does not hinder the transportation of the grain stems.

[Brief description of drawings]

1 to 3 show an embodiment of a grain culm conveying device of a reaper according to the present invention, and FIG. 1 is a side view of a combine threshing machine / part of a traveling unit and a reaper that implement the same. 2 is a plan view taken along line A of FIG. 1, and FIG. 3 is an enlarged sectional view taken along line BB of FIG. 46, 47 ... Tip transport device (front) 53 ... Rotating scraper 58 ... Tip transport device (rear)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Laid-Open No. 58-63315 (JP, A) Actually developed 51-18210 (JP, U)

Claims (1)

[Claims] 1. A left and right front grain culm transporting device arranged in a V shape, and a transporting end portion which is rotatably supported so that a starting end portion is near a transporting end portion of the front grain culm transporting device. In the grain culm transporting device of a reaper equipped with a rear grain culm transporting device which is also used as a handling depth adjusting device, a tip end transporting device (46, 47) of each of the front grain culm transporting devices has a transporting end portion. The rotary scrapers (53) are provided above each of the above, and the rotary scrapers (53) are located above the starting end portion of the tip transfer device (58) of the rear grain culm transfer device. A position where one of them faces the front side of the tip transporting device 58 and the other of which faces the front side of the tip transporting device 58, and the position of each tooth tip in the transporting working range of the tip transporting device (58). Conveying device for reaping section, characterized in that