JPS60221016A - Grain conveyor of combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a culm conveying device for transporting reaped husks from the reaper side in a combine harvester, and then taking over and transporting the husks from the threshing machine.

A combine harvester includes a tip conveying device that conveys the tip of the harvested culm, and a root conveying device that conveys the root portion of the harvested culm. For combine harvesters with three or more rows of cutting, these conveying devices are further divided into a front stage and a rear stage, and the culms conveyed by the front stage conveying device join together and are transported by the later stage's tip and root conveying devices, respectively. Of these, the root portion is taken over and transported by the transport device of the threshing machine. In addition, the latter conveying device is supported as a whole so that it can swing freely around the end of the conveyance, and by swinging it, the conveying culm can be moved in the axial direction and handled during threshing. Configured to adjust depth.

In such a culm conveying device, an elastic rod-shaped transfer guide is provided protruding from the root conveying device side in order to smoothly transfer the culm from the root conveying device of the latter stage to the conveying device of the threshing machine. The husk culm is extended over the conveying endless belt of the threshing machine side conveying device, and the transfer husk culm is pressed against the running end of the endless belt, and the husk culm is held between these and taken over. In the handover guide, the base end attachment part moves together with the conveying device each time the handling depth is adjusted, and the suppression position of the culm also changes due to changes in relative position due to manufacturing or assembly errors between the reaper and the threshing machine. changes. Of these, movement due to handling depth adjustment can be absorbed by the elasticity of the transfer guide, but movement due to manufacturing errors, etc. is in a direction that cannot be absorbed by the elasticity of the transfer guide. Even if it is displaced, it moves a lot at the tip, so with conventional equipment that cannot be adjusted, the transfer of the culm cannot be carried out smoothly, and the culm falls off and is lost, and the culm gets clogged and transport becomes stagnant. There was a drawback that it was difficult to use.

The present invention has been made in view of the above points, and a supporting member having elongated holes extending in two directions is provided on the side of the U-shaped rod supporting the clamping rod for the reaper side conveyance device, and the threshing machine side conveyance device By supporting the proximal end of the culm succession guide extending along the support member in a movable and adjustable manner, the position of the culm succession guide can be easily adjusted and the relative position of the reaper and threshing machine can be improved. Container that has always made it possible to take over the culm smoothly regardless of changes in the culm? The present invention provides a ζ-in shell culm conveying device. Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 7 show an embodiment of the culm conveying device according to the present invention. The figure is the first
3 is an enlarged plan view from A in Fig. 1, Fig. 4 is a front view from B in Fig. 3, Fig. 5 is an enlarged plan view of the thick part in Fig. 2, and Fig. 6 is a plan view from A in Fig. 3. The figure is a CC sectional view of FIG. 5, and FIG. 7 is an elevational view taken from D in FIG. 6. In the figure, a threshing 2 is mounted on a running frame 2 that supports rollers 1 running on the left and right sides of the combine.
A seven-frame frame 4 of a threshing machine 3 containing a sorting device is mounted on the frame 4, and on the side of the frame 4, an endless conveyor belt 5 for conveying the husks for threshing is stretched. This is a clamping rod that is formed in a letter shape and clamps the root part of the shell culm between it and the endless transport belt 5.

A reaping drive shaft 9 , which is drivingly connected to the driving side by a pulley 8 , is rotatably supported by a reaping bearing T on a bearing stand 6 erected at the front end of the traveling frame 2 .

Reference numeral 10 denotes a tubular reaping frame that supports the main dispersion section of the reaper, and is generally designated by reference numeral 11. A transmission shaft, which is drivingly connected to the reaping drive shaft 9, is supported through the shaft. The lower end of the reaping frame 10 and the traveling frame 2 are connected by a hydraulic cylinder (not shown), and by moving the piston rod forward and backward, the reaping machine 11 is raised and lowered to adjust the cutting height. is configured to be regulated. Further, in a reaping gear box 12 joined to the lower end of the reaping frame 10 perpendicularly thereto, a lifting drive shaft 13 which is drivingly connected to a transmission shaft within the reaping frame 1o is supported through the reaping gear box 12.

A pre-reaping frame 14 is supported by and parallel to both ends of the reaping gear box 12, and a plurality of dividing rods 15 extend forward from the pre-reaping frame 14. A grass cutting body 16 is fixed to the front end of the grass rod 15 for separating the culms in the field. 1T is a lifting device that is supported by a lifting pipe 18 that extends diagonally upward from the reaping gear box 12, and that stands up a fallen culm;
Reference numeral 9 denotes a cutting blade shaped like a clipper, which intersects perpendicularly with the dividing rod 15 and cuts off the root portion of the erected culm. A plurality of scraping bearings 20 that protrude diagonally upward from the rear of the cutting blade 19 include
A scraping belt 21 scrapes the root of the erected culm into the cutting position of the cutting blade 19, and a gear-shaped rotary scraper rotates in the direction shown by the arrow in the figure to scrape the cut culm into the conveyance path. body 22
are arranged above and below, respectively.

The culm conveying device F7 that conveys the scraped culms toward the threshing machine 3 is composed of a conveying device (front) 23 and a conveying device (rear) 23. Of these, the conveying device (front) 23, a tip conveying device (front) 24, a tip conveying device (front pressure) 25, which are arranged in a V-shape, and a root conveying device (front) 26, which is arranged in a V-shape below them; It is composed of a root conveying device (front pressure) 21. The tip conveyor (front) 24, 25 that conveys the tip of the culm has a large number of lugs 28.
The endless belt and lugs 28 that run inside the chain case with
It consists of a tip guide (not shown) supported along the tip running locus, and a root conveying device (front 926.27: rotary raking) that conveys the root of the culm. It consists of an endless belt 3° stretched between a rotating body 29 coaxial with the body 22 and a plurality of rotating bodies, and a clamping rod (not shown) supported along the running end of the endless belt 3°. There is a transport device (
1 with front) 24.26 and conveyance device (front pressure) 25.27
The culms conveyed in rows or in pairs merge at the end of the transport and are taken over by the transport device (rear) 23aJC.

Reference numeral 31 denotes a rotary scraper that is supported by the lifting pipe 18 via a conduction case 32 and scrapes the tip of the culm into the transport device (rear) 24.

Next, the transport device (rear) 231aK will be explained. A transmission case 33 is integrally provided at the inner end of the reaping bearing 7, and the reaping drive shaft 9 is connected to the transmission case 33.
A gearbox 34 housing a transmission device for transmitting the rotation of the transport device fit (rear) 23alC is rotatably connected and extends in the width direction of the machine.

A case 36 of a tip conveying device (rear) 35 is fixedly supported on a supporting portion integrally formed on the upper surface of the free end side of the gearbox 34 and extends diagonally downward. , the output shaft 37 of the transmission device is now pivoted with both ends protruding from both sides of the abox 34. An endless band 41 having a large number of lugs 40 is stretched between a rotating body 38 located inside the case 36 and pivotally attached to the output shaft 3T and a rotating body 39 at the lower end inside the case 36. , on the outside of the case 36,
A rod-shaped tip guide (not shown) is supported along the running trajectory of the tip of the lug 400.

A support plate 42, which is made of plate material and bent in different steps, is integrally fixed to the lower surface of the gearbox 3T, and a main pipe 43 whose tip is bent into an L-shape is supported at one end of the support plate 42. It is perpendicular to the plate 42 and protrudes diagonally downward by welding. 44 is a U-shaped rod made by bending the pipe material into a U-shape,
One end is welded and fixed to the tip of the main pipe 43 via a pair of square plates 45 (J), and the other end of the U-shaped rod 44 is fixed to a spring case, which will be described later. Further, an L-shaped bracket 4 is fixed to the U-shaped rod 44 in close proximity to the square plate 45.
6 is bolted to the case 36 to firmly support its central portion. On the other hand, a bracket 48 having a U-shaped cross section is integrally formed by welding on the L-shaped support rod 41 welded to the support plate 42 on the side of the gearbox 34. (rear) is supported by this bracket 48 and the main pipe 43. That is, the root conveying device (rear) 49 is equipped with a round bar-shaped chain frame 50, and a pair of support plates 51 each having an arcuate end at the center thereof are provided in parallel to protrude for welding. has been done. And chain frame 50
In this case, the support plate 51 is fitted into the bent portion near the tip of the main pipe 43 and fixed by welding, and one end is welded to the bracket 48. As a result, the chain frame SOB and the non-pipe It is formed into a triangular shape and is firmly supported by the 4L support plate 42. Rotating bodies 54 , 55 are pivotally connected to arms 52 , 53 fixed to one end of the chain frame 50 and the bracket 48 at the other end, and these rotating bodies 54 , 55 and the gear box 34 A rotary body 56 pivotally attached to the output shaft 3T of
An endless belt 57 is stretched between the two. Reference numeral 58 denotes an endless band rail on which the endless band 5T is stretched and guided, and is supported by bolts on the chain frame 50 and supported over the entire length y between the rotating bodies 54 and 55. Further, at a position concentric with the output shaft 3T, an L-shaped tension arm 59 is pivotally supported on the case 36 side, and a tension pulley 60 pivotally attached to the free end of the tension arm 59 is connected to the endless band 5.
Attached to T, tension arm 59 and case 3
Endless band 5
7 is biased toward the side that makes it tension.

One end of the U-shaped rod 44 is supported by the main pipe 43, and a rectangular support plate 62 is welded to the other end of the U-shaped rod 44.
A pair of long holes 62a extending in the shell culm transport direction and a pair of long holes 62b extending perpendicularly thereto are bored in the support plate 62. An L-shaped bracket 63 is fixed to one of the elongated holes 62b with a bolt, and a hollow rectangular spring holder 64 is attached to the bracket 63. It is fixed with a bolt inserted into the hole. 65 is a vibro 5m along the running end of the endless band 510, and a pair of legs 65b.
A clamping rod is integrally formed with the spring holder 64, and the legs 65b are slidably inserted into the spring holes at both ends of the spring holder 64.
A clamping spring 66 is mounted on both legs 6Ib within the spring holder 64 to bias the clamping rod 65 toward the endless band 5T.

By doing this, the clamping rod 65 is pressed against the endless belt 5T, and as the endless belt 57 runs, the culm is clamped and conveyed.

In the other elongated hole 62m of the support plate 62, a support arm 67 consisting of a pipe 67a extending in the culm transport direction, that is, the longitudinal direction of the elongated hole, and a mounting plate 67b welded to the base end thereof is movable and adjustable by bolts. The support arm 67 is also fixed to the spring holder 64 by a bolt 68 so as to be movably adjustable. A U-shaped holder 69 integrally formed at the distal end of the support arm 67 has a proximal end portion of a takeover guide 70 formed by bending an elastic bar material into an L shape fixed thereto. The handover guide 70 extends along the endless belt 5 on the side of the threshing machine 3. The handover guide TO is pressed against the running end of the endless belt 50 by its own elasticity, and guides the root of the culm transported by the transport device 49 on the reaper 11 side, and guides the root of the culm transported by the transport device 49 on the side of the threshing machine 3. The proximal end of the support arm 6T and the bracket 63, which are configured to be transferred between the band 5 and the clamping rod 5&, and which support the support arm 6T, are connected to the elongated hole 62a of the support plate 62,
By moving it along 62bK, the relative position with respect to the endless band 5 can be adjusted in each direction. A cover 11 formed of a plate material is attached to the support arm 6T.
are fixed, the spring holder 64, the support arm 67,
The base of the takeover guide TO and a part of the conveyance path of the conveyance device 4g are intersected.

On the other hand, the rod T2 protruding from the bracket 46 is equipped with a roller 74 attached to a lever 73 pivotally supported on the reaping bearing T on the threshing machine 3 side. When the roller T4 is operated, the roller T4 is raised and lowered, and the entire conveying device (rear) 24 is swung integrally to adjust the handling depth.

The operation of the combine harvester configured as described above will be explained by taking three-row cutting as an example. As the machine moves forward, the three culms that have been raked by the weeding body 16 are guided one by one between the adjacent weeding rods 15, and after being pulled up by the pulling device 17, the root portion is moved to the cutting blade 19. be reaped. The cut culm is released from the device 1T by pulling up the tip, and at the same time is scraped into the conveyance path by the rotating scraper 22, and one of the three strips is passed through the conveyor device (front cloth) 24, 26. .2 article is the conveyance device (front pressure) 25.
27 and transported. The three conveyed culms meet at the end of conveyance, and the tip and root portions are taken over by a tip conveyor (rear) 35 and a root conveyor (rear) 49, respectively. The tip of the inherited culm is 2g 40
It is held by a tip guide and conveyed while passing through a U-shaped rod 44, and the root portion is conveyed while being held between an endless band 51 and a clamping rod 64. At the end of the conveyance, the tips of the culms are supplied to the handling chamber of the threshing machine 3, and the root portions are transferred to the endless band 5, where they are threshed while being conveyed. When taking over this root part, since the taking over guide TO extends over the endless band 5 and is elastically pressed against the endless band 5, the culm is guided by this taking over guide 10 and is taken over smoothly. During harvesting, for example, if the shell culm in the field changes from a short culm to a long culm, turn the lever 65 clockwise in Fig. 1 from the operator's seat, and the V4
, the gearbox 34 integrated with the rod VE, the placket 46, the main pipe 43, and the support plate 42 rotates around the joint with the conduction case 33, and the tip conveyor fixedly supported by the gearbox 34 rotates. The device (rear) 35 and the root conveyance device (rear) 49 connected to the gearbox 34, a support rod 47, and a bracket 48 rotate in a direction to raise the conveyance starting end. Therefore, the conveying device (rear) 35, 49 has to hold the tip of the short culm at the transition point of the husk from the conveying device (front) 23, and then convey it to the threshing machine 3. When this happens, the husk culms move toward the root during transportation, and during threshing, the short culms are also handled shallowly, making it possible to cope with the long culms.

When adjusting the handling depth, the conveying device (rear) 23
The transfer guide 70 integrated with 'o- also swings, but since the direction of the swing is in the direction of distance from and near the running end of the endless belt 5), the displacement is absorbed by elasticity.

Furthermore, when initially assembling the reaper 11 and the threshing machine 3 or when reassembling them after disassembling them for maintenance or the like, the transfer guide 70 may not be correctly parallel to the endless band 5 due to manufacturing or assembly errors. In this case, the elongated holes 62a, 62 extend in directions perpendicular to each other.
By providing b on the proximal support part of the takeover guide TO,
By loosening the bolts that engage with these long holes 62a and 62b, the transfer guide TO can be moved in each direction and corrected to the correct position.Furthermore, in this embodiment, the cover 71 is As a result of the provision, the transport transition part of the shell culm is covered with this, so it is safe to avoid having your hands pinched.As is clear from the above explanation, the present invention allows In the culm conveying device, a support member having elongated holes in two directions is provided on the side of the U-shaped rod 44 that supports the holding rod 65 for the reaper side conveying device [49], and the endless belt 5 of the threshing machine side conveying device is provided.
By movably supporting the base end of the culm transfer guide 700 extending along the support member, the relative position between the transfer guide 10 and the endless band 5 can be adjusted very easily in each direction. Therefore, if the position is misaligned due to manufacturing error or assembly error, it can be corrected to the correct position, ensuring smooth handover of the culm at all times, and improving conveyance and handover performance.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the culm conveying device according to the present invention. The figure is the first
Figure 3 is an enlarged plan view from A in Figure 1, Figure 4 is a front view from B in Figure M3, Figure 5 is an enlarged plan view of the fine part in Figure 2, and Figure 6. is a CC sectional view of FIG. 5, and FIG. 7 is an elevational view of FIG. 3... Threshing machine, 5φ, fist, endless belt, 11... Reaping machine, 44@... U-frame, 49--... Root conveyor (rear), 62... Support Board, 62m, 62b @
---Long hole, (i 3 II * l+ @ bracket, 65... clamping rod, 67... support arm, TO
@・ψ・Transfer guide.

Claims (1)

[Claims] A support member is provided on the side of the U-shaped rod that supports the clamping rod for the reaper side conveyance device, and the movement of the base end of the culm succession guide extending along the endless band of the threshing machine side conveyance device is adjusted by the support member. A combine harvester culm conveying device characterized by being freely supported.