JPH0449870Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a raking and conveying device for a grain culm reaper such as a combine harvester.

BACKGROUND TECHNIQUE Conventionally, as a raking and conveying device in a grain culm reaper such as a combine harvester, a disassembleable case ni consisting of an upper cover and a lower cover supported on a vertical axis such as a drive shaft is used, for example, as shown in Fig. 11. It is well known that a plurality of raking carriers E, H... are provided in the direction of the culm of the grain culm to be transported. A method is provided in which the upper cover for the conveyor is fixed to the underside of a collar body welded to the holder of the vertical axis A using tightening tools such as bolts and nuts.

Problems to be Solved by the Invention However, with the above-mentioned structure, each cover and halves are disposed in a narrow and intricate space at the rear of the case and above the cutting blade. Coupled with the fact that the rollers are tightened in a polymerized state at narrow intervals, there is a problem in disassembling and maintaining the scraping conveyor. In particular, when disassembling, repairing, cleaning, etc. the conveyor in the second or lower stages from the top, even if you only want to remove the upper cover in the second or lower stages, all parts located above the cover must be disassembled and removed. However, the work is troublesome and requires a lot of time and effort.

Means for Solving the Problems Therefore, the present invention has been developed to provide a raking conveyor for a grain culm reaper that is equipped with multiple tiers of raking conveyors each having a disassembleable case consisting of an upper cover and a lower cover supported on a vertical axis. In the device, the outer shape of the flange supporting the cover is formed into a non-perfect circular shape, and the cover has an opening area larger than the surface area of the flange, and only when the cover is rotated by a predetermined angle around the vertical axis, the flange body is opened. In contrast, the above-mentioned problems are solved by providing a passage hole for the collar body and detachably attaching a cover to the upper side of the collar body.

Operation When disassembling, repairing, cleaning, etc. the raking conveyor in the second or lower stages from the top, simply remove the fasteners on the upper cover of the raking conveyor and the upper cover can be moved upward along the vertical axis. Since it can be moved, each part of the scraping conveyor (chain ring, scraping conveyance chain, roller, scraping claw, etc.) can be maintained, and the inside of the case can be cleaned easily. In addition, when assembling or disassembling the cover, if you rotate the cover around the vertical axis by a predetermined angle and then move it up and down along the vertical axis, the cover can pass through the flange body through the flange passage hole without getting caught on the flange body. This allows the cover to be attached and removed while the vertical shaft holder, etc. to which the flange is fixed, remains installed.

Example The drawing shows an example of a 4-row cutting combine harvester.
Reference numeral 1 denotes a pre-processing section of a combine that is attached to the front of the traveling machine body 2 via a hydraulic cylinder C so as to be freely movable up and down, and 1a is a pre-processing frame that supports each pre-processing section. Reference numeral 3 denotes a lifting device, at the rear lower part of which is a cutting blade 4, and above the cutting blade 4 are upper covers 6, 7 and a lower cover 6' supported on a vertical shaft (drive shaft) 5.
A scraping conveyor 10, 10', 11, 11' having a disassembleable case 8, 9 consisting of a scraping passage a
They are provided in two stages, one on each side, one on the left and one on the left. 12 is a star foil, 13 is a stock conveyor chain, and 14 is a cross-feeding conveyor, which is connected to the scraping conveyor 1.
0, 11, stock transfer chain 13 and star wheel 12 are designed to rotate in synchronization with the rotation of vertical shaft 5. Reference numeral 15 denotes a lifting conveyance device having a handling depth adjustment function, which includes a stock base conveyor 15a and a tip conveyor 15.
The standing grain culm in the field is raised by a pulling device 3 and cut by a cutting blade 4, and the cut grain culm b is moved to the stock head by a star wheel 12 and a stock transport chain 13. The grains are conveyed to one rear side while being held by the upper and lower scraping conveyors 10, 10', 11, and 11', and then passed through the lifting conveyor 15 to the feed chain 17 of the threshing section 16 at the rear.
It is now being forwarded to 18 is a gear case.

FIGS. 3 and 4 show the structure of the scraping conveyor, and show the outer periphery of both upper and lower ends of the upper holder h, which rotatably supports the vertical shaft 5 via a bearing 19, and the outer periphery of the upper end of the lower holder h'. Flange bodies 20, 21, and 22 for attaching the cover are fixed to the brackets 20, 21, and 22 by means such as welding, respectively, and the lower holder h' is attached to the bracket 23.
It is supported by the preprocessing frame 1a via.
At the downwardly projecting end of the vertical shaft 5 is a stock transport chain 1.
No. 3 drive chain wheels 13a are fixedly attached thereto, and the star foil 12 is integrally fixed to the lower surface of the drive chain wheels 13a. Reference numeral 24 denotes a drive chain wheel of the upper scraping conveyor (the first scraping conveyor from the top) interposed between the bearing 19 and the metal 25, and 28 denotes a lower scraper interposed between the bearings 19, 19. With the drive chain wheel of the raking conveyor (the second stage from the top) 11,
Boss portions 24a, 26a of these chain rings 24, 26
are integrated with the vertical shaft 5 by keys 27, respectively.

In addition, each driving chain wheel 24, 26 and a driven chain wheel 24',
Scraping conveyance chains 27 and 28 each having conveying claws 27a and 28a mounted thereon in a freely raising and lowering manner are wound between the two ends 26'.

29 is a guide roller, 30 is thientite, 3
1 is a C ring for retaining, 32, 33, 34, 3
Reference numerals 5, 36, 37, 38, and 39 are fasteners for fixing the cover, each consisting of a bolt, a nut, or the like.

By the way, the lower cover 6' of the upper scraping conveyor 10
The outer shape of the flange body 20 that supports the flange body 20 is formed into a non-perfect circular shape (for example, an elliptical shape, a rectangular shape, a triangular shape, etc.).

On the other hand, the upper cover 7 of the lower scraping conveyor 11 has an opening area larger than the surface area of the flange body 20 and can pass through the flange body 20 only when the cover 7 is rotated by a predetermined angle around the vertical axis 5. Tsuba body passage hole 40
is provided. Further, the upper cover 7 is detachably attached to the upper side of the collar body 21 as shown in the figure. In the case shown in FIG. 5 and FIG.
A flange body passage hole 40 provided in the upper cover 7 of 1 is configured to have an elliptical shape that is slightly larger than the flange body 20. In this example, when the cover 7 is set, the long diameter direction of the flange body 20 and the longitudinal direction of the cover 7 are made to coincide with each other in consideration of the support strength of the cover 7, and the flange body passage hole provided in the cover 7 is 40 is opened with its major diameter direction perpendicular to the longitudinal direction of the cover 7, that is, with a phase shifted by 90 degrees with respect to the flange body 20, so that the cover 7 passes through the flange body 20 during assembly etc. After that, the cover 7 can be set on the flange body 21 by turning it 90 degrees around the vertical axis 5. Numerals 41, 42, and 43 are holes for attaching fasteners such as bolts. In FIG. 5, the symbol P indicates the relative rotation locus (outermost end locus) of the long diameter portion of the elliptical collar body 20 when the cover 7 rotates, and R indicates the relative rotation locus (the outermost end locus) of the short diameter portion when the cover 7 rotates. Since the surface of the cover body 7 is shown in a perspective view in the drawing, these trajectories P and R
It also has an elliptical shape for convenience.

In addition, when the collar body 21 that supports the upper cover 7 of the lower scraping conveyor 11 is set to have the same shape and size as the collar bodies 20 and 22, the collar body that is the supporting part of the covers 7, 7', and 6' The bodies 20, 21, and 22 can be composed of the same parts, and even if the upper cover 7 of the lower scraping conveyor 11 is attached above the collar body 21, the support rigidity of each cover 7, 7', and 6' can be made the same. be able to. Alternatively, the flange body 21 may be set larger than the flange body 20 so that the flange body 21 closes the flange passage hole 40 from below when the upper cover 7 is set (see FIGS. 7A and 7B).

8 to 10 show another embodiment, in which the flange body 20 (and 21) and the flange body passage hole 40 are configured in a substantially triangular shape.
In addition, in this illustrated example, the upper and lower scraping conveyance bodies 10,
Reference numeral 11 shows a structure in which, unlike the embodiment described above, there is no driven chain ring or the like, and the scraping and conveying chains 27' and 28' are tensioned exclusively by thientites 30' and 30'a. In the figure, 44, 45, and 46 are arms, rollers, and bullets constituting the thientites 30' and 30'a, respectively, and 40' is a hole provided in the lower cover 6' of the upper scraping conveyor 10.

In the above configuration, the assembly process of the scraping conveyors 10 and 11 will be briefly described below with reference to FIG. 3 for convenience.

That is, assembling the lower holder h' and the vertical shaft (drive shaft) 5 to the pretreatment frame 1a -> installing the lower cover 7' of the lower scraping conveyor 11 -> installing the chain ring 26 and its related parts -> the upper holder The order is as follows: attaching the upper cover 7 → attaching the lower cover 6' of the upper scraping conveyor 10 → attaching the chain ring 24 and related parts → attaching the upper cover 6.

By the way, since the flange body passing hole 40 provided in the upper cover 7 of the lower scraping conveyor 11 is larger than the outer shape of the flange body 20, it is necessary to fit the hole 40 into the upper holder h with the flange body 20 aligned with the flange body 20. The cover 7 can pass through the flange body 20, and after passing through the flange body 20, the cover 7 can be moved around the vertical axis 5 at a predetermined angle (90° in this embodiment,
60° in other embodiments shown in FIGS. 8 to 10)
By turning it, the upper cover 7 of the lower scooping conveyor 11 can be easily set on the collar body 21. When disassembling, it can be done in the reverse order of the above.

On the other hand, the lower scraping conveyor 11 (chain rings 26, 26',
Chain 28, conveyance claw 28a, guide roller 29
etc.), it is not necessary to disassemble and remove the upper raking carrier 10 and the upper holder h one by one, but simply tightening the tightening tool 35 etc. for fixing the upper cover 7 of the lower raking carrier 11. The upper cover 7 can be attached to the lower cover 6' of the upper scraping conveyor 10 by simply removing it.
Since it can be moved to the vicinity, maintenance such as maintenance and cleaning of the lower scraping conveyor 11 can be performed easily and quickly.

Incidentally, maintenance, cleaning, etc. of the upper scraping conveyor 10 can be easily performed by removing the upper cover 6.

Effects of the Invention As described above, the present invention is applicable to a raking conveyance device for a grain culm reaper, which has multiple tiers of raking conveyors each having a disassembleable case consisting of an upper cover and a lower cover supported on a vertical axis. , the outer shape of the flange supporting the cover is formed into a non-perfect circular shape, and the cover has an opening area larger than the surface area of the flange, and only when the cover is rotated by a predetermined angle around the vertical axis, the flange is rotated by a predetermined angle. In addition to providing a pass-through hole for the flange body, a cover is detachably attached to the upper side of the flange body, making it easy to assemble and disassemble the scraping conveyor, as well as to facilitate maintenance such as cleaning and repair. It became possible to do it quickly.

[Brief explanation of the drawing]

Figure 1 is a side view of the pre-processing section of a combine equipped with the present invention, Figure 2 is a plan view of the same as above, Figure 3 is a sectional view of the main part, and Figure 4 is a partially cutaway cross section of the scraping conveyor. Figure 5 is a partially cutaway perspective view of the upper cover of the lower scraping conveyor, Figure 6 is a plan view of the upper holder to which the collar body is fixed, and Figure 7A is the collar body fixed to the top and bottom of the upper holder. Cross-sectional diagrams of main parts when the sizes of are different, 7th
Figure B is a perspective view of the main parts in the same as above, Figure 8 is a plan view of the main parts in another embodiment, Figure 9 is a sectional view in the same, and Figure 10 is an exploded perspective view of the scraping conveyor in the same, FIG. 11 is a sectional view of a conventional example. In the figure, 5 is the vertical axis, 6 is the upper cover of the upper raking conveyor, 6' is the lower cover of the upper raking conveyor, 7 is the upper cover of the lower raking conveyor, and 7' is the lower raking conveyor. A lower cover, 8 and 9 a case, 10 an upper scraping conveyor, 11 a lower scraping conveyor, 20 a collar body,
21 is the collar body, and 40 is the collar body passage hole.

Claims (1)

[Scope of utility model registration request] In a raking conveyance device for a grain culm reaper, which has multiple stages of raking conveyors each having a disassembleable case consisting of an upper cover and a lower cover supported on a vertical axis,
The outer shape of the flange supporting the cover is formed into a non-perfect circular shape, and the cover has an opening area larger than the surface area of the flange and passes through the flange only when the cover is rotated at a predetermined angle around the vertical axis. A raking and conveying device for a grain culm reaper, characterized in that a flange body passing hole is provided, and a cover is detachably attached to the upper side of the flange body.