JP2001148930A - Side cover of moving reaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a feed chain cover and to improve the maintenance of a discharged straw cutter. SOLUTION: A combine harvester 10 is equipped with a feed chain 26 for conveying and feeding reaped grain culms to a threshing part 20 and a discharged straw cutter 30 for cutting discharged straw after being threshed. Sides of the chain 26 and the cutter 30 are covered with a side cover 50. The side cover 50 is composed of the feed chain cover 51 for covering both the side of the chain 26 and one part of the side of the cutter 30 and a cutter bar 52 for covering the other part of the side of the cutter 30. Thus, the maintenance of the cutter 30 is easily performed only by taking off the cover 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile reaper such as a combine harvester, and more particularly, to a side cover of a mobile reaper that covers a side surface of a feed chain and a waste straw cutting device.

[0002]

2. Description of the Related Art A combine is composed of a feed chain which feeds and transports cereal stalks cut in a pre-processing section to a threshing section, and a discharge straw cutting apparatus which is attached to a rear portion of the machine body and cuts off a waste straw after the threshing processing. The cutter has a rear surface side covered with a cutter case, and side surfaces of the feed chain and the waste straw cutting device are covered with side covers.

[0003] The side cover is divided into two parts, for example, a feed chain cover that covers the side of the feed chain and a cutter cover that covers the side of the discharge straw cutting device. One feed chain cover that covers the side of the straw cutting device was arranged.

[0004]

However, if the side cover is divided into two covers along the front and rear of the fuselage,
It is necessary to remove all two covers at the time of maintenance of the waste straw cutting device, and when the feed chain and the side of the waste straw cutting device are covered with one feed chain cover, the weight of the cover itself increases and It was difficult to cover the back side and the lower side of the waste straw cutting device with one cover.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the invention is to reduce the size and weight of a feed chain cover for covering a side surface of a feed chain and a discharge straw cutting device, and to reduce the size of the discharge chain. An object of the present invention is to provide a side cover of a mobile reaper that can improve the maintenance of a straw cutting device.

[0006]

In order to achieve this object, the present invention provides a feed chain (26) for transporting a harvested culm to a threshing unit (20), and a feed chain (26) mounted on a rear part of the machine body and having a drainage after threshing. Straw cutter for cutting straw (30)
And a side cover (50) that covers the side surfaces of the feed chain (26) and the waste straw cutting device (30).
0) a feed chain cover (51) that covers a side surface of the waste straw cutting device (30) and a part of a side surface of the feed chain (26) and a side surface of the waste straw cutting device (30); A cutter cover (52) attached to the waste straw cutting device (30) and covering a part of the side surface of the waste straw cutting device (30).

[Operation] In the above configuration, the mobile reaper (10) to which the present invention is applied is provided with a feed chain (2).
6) and the side surface of the waste straw cutting device (30) are covered with a side cover (50).
0), the portion covering the side surface of the waste straw cutting device (30) is replaced with the feed chain (26) and the waste straw cutting device (3).
Feed chain cover (51) covering a part of the side of (0)
And a cutter cover (52) for covering the remaining part of the side surface of the waste straw cutting device (30), so that a part of the side surface of the waste straw cutting device (30) is covered with the cutter cover (52). The feed chain cover (5
1) The size and weight can be reduced, and the cutter cover (52) only covers a part of the side surface of the waste straw cutting device (30). Therefore, the feed chain cover (51) is provided.
If only the removal is performed, the maintenance of the waste straw cutting device (30) can be performed.

Note that the reference numerals in parentheses described above are for reference to the drawings, and do not limit the present invention in any way.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a view showing the entirety of a combine to which the present invention is applied. In FIG. 1, a combine 10 has a body 12 supported by a pair of right and left crawler traveling devices 16, 16. In front of the body 12, a pre-processing unit 18 is supported so as to be able to move up and down.
Are provided with a number of dividers 25 for weeding grain culms over substantially the entire width of the body 12 and narrow guides 27 on the left and right end sides of the body 12. A driver's seat 14 and a grain tank 22 are provided on one side of the body 12 from the front to the rear of the body, respectively, and the other side of the body 12 is cut by the pre-processing unit 18. A feed chain 26 that transports the culms that have been transported, and a threshing unit 20 that threshes the cereals transported by the feed chain 26 are provided. The grains threshed in the threshing unit 20 are lifted and transferred via a fryer cylinder 23 and are temporarily stored in a grain tank 22. An engine 21 is provided below the driver's seat 14.

Further, a waste straw cutting device 30 is provided at the end of the waste straw chain (not shown) at the rear of the threshing unit 20, and this waste straw cutting device 30 is shown in FIGS. 2 and 3. As described above, the cutter shaft 37 is rotatably supported between the left and right cutter side plates 32, 32 of the cutter case 31 (only the left cutter side plate is shown).
The swivel shaft 3 is disposed substantially obliquely above the cutter shaft 37 in substantially parallel with the cutter shaft 37.
6 is rotatably supported. This raking shaft 36 has
A plurality of disk-shaped scraping blades 38 are supported at predetermined intervals, and a plurality of disk-shaped cutting blades 39 which are in close proximity to the cutter shaft 37 corresponding to each of the scraping blades 38 are supported. Have been.

An input gear 47 and an input pulley 42 are coaxially mounted on an axial end of the cutter shaft 37. The input pulley 42 is connected to a second spiral shaft 43 below the threshing unit 20. The power transmitted to the input pulley 42 is transmitted by the input gear 47
Is transmitted to the rake shaft 36 by meshing with the driven gear 48 attached to the rake shaft 36. The belt 44 is provided with a tension pulley 45, which can be tensioned and relaxed by operating a lever 46.
When pressed against, the rotation of the cutter shaft 37 is transmitted to the raking shaft 36, and the waste straw is cut by the raking blade 38 and the cutting blade 39, and the cut straw is cut on the ground below the grain culm guide plate 41. Is deposited.

The rear side (rear side of the machine body) of the cutter case 31 is covered with a safety cover 40, and a grain culm guide plate 41 is integrally provided below the safety cover 40. And this cereal stem guide plate 41
A lower cover 49 is attached to the inner left and right ends of the stalk, and the lower cover 49 is adjustable in position with a knob 54 along a long hole 41 a formed in the cereal stem guide plate 41.

The left side surface of the threshing unit 20 in the machine advancing direction includes an upper side cover 50 that covers the side surfaces of the feed chain 26 and the waste straw cutting device 30, a first spiral and a second spiral (not shown), and the like. Lower side cover 5 covering the side of
3 and covered.

In the present invention, a portion of the side cover 50 that covers the side surface of the waste straw cutting device 30 is a feed chain cover that covers the side surface of the feed chain 26 and a part of the side surface of the waste straw cutting device 30. Waste straw cutting device 3
0 and a cutter cover that covers a part of the side face of the waste straw cutting device 30.

In FIG. 1, of the upper side cover 50, the side of the feed chain 26 and the waste straw cutting device 30
And a cutter cover 52 that covers the remaining part of the side surface of the waste straw cutting device 30. The feed chain cover 51
Is detachable with one touch as shown in the figure (new drawing).

The cutter cover 52 covers the input pulley 42, the driven gear 48, and the like disposed outside the cutter side plate 32 (see FIG. 2).
As shown in (a) to (c), the outer plate 52a and the back plate 5
2b and an inner plate 52c, and a rib 52d is bent from an end of the inner plate 52c. The back plate 52
b and the rib portion 52d are provided with a long hole 63 (one) for mounting,
Long holes 64 (two) and long holes 65 (three) are formed.

As shown in FIGS. 5 and 6, the upper portion of the back plate 52b is attached to the mounting plate 32 extending outward from the cutter side plate 32.
a through the elongated hole 63 with two bolts 60, and the intermediate portion of the rear plate 52 b extends through the elongated hole 64 to a portion extending outward from the safety cover 40.
The inner plate 52c is further fastened to the cutter side plate 32 and the lower cover 49 by three bolts 62 through the elongated holes 65 of the ribs 52d. Thus, the cutter cover 52 covers the upper and lower surfaces, the rear surface, and a part of the side surface of the input pulley 42 and the driven gear 48 provided on the side surface of the waste straw cutting device 30.

In order to remove the cutter cover 52, generally, each of the mounting bolts 60, 61, 62 and the lower cover 49 is removed.
However, according to the present embodiment, the bolt mounting portions of the cutter cover 52 need to be removed from the slots 63, 64, 65.
The cutter cover 52 can be removed without removing the lower cover 49 only by loosening each bolt.

The side surfaces of the cutter cover 52 and the feed chain 26 are covered with a feed chain cover 51.

FIG. 7 shows an enlarged side cover. According to this, it is understood that a part of the side surface of the waste straw cutting device 30 is covered with the cutter cover 52 and the side surface of the feed chain 26 is covered with the feed chain cover 51.

FIG. 8 is a view showing the state of attachment and detachment of the feed chain cover 51. The feed chain cover 51 is provided with hooks 66 and 67 at upper and lower positions on the inner surface, respectively. Arm rods 6 at the upper and lower ends of the connecting rod 68 attached to the body frame side.
8a and 68b, respectively, to be attached to the body frame. When removing the feed chain cover 51, the hook 6 above the feed chain cover 51 is removed.
6 is removed from the arm shaft 68a and opened to the side (see a two-dot chain line), the feed chain cover 51 is attached to the lower arm shaft 6a.
When the feed chain cover 51 is opened centering on 8b, and the upper and lower ends of the feed chain cover 51 are gripped and lifted slightly upward, the lower hook 67 and the arm shaft 68b are disengaged and removed. Thus, the feed chain cover 51 can be attached and detached with one touch.

Next, the operation will be described.

The grain stalks mowed in the pre-processing unit 18 of the combine 10 are fed to the feed chain 2 after the handling depth is adjusted.
6 to the threshing unit 20 where the threshing unit 20
In the above, the grain culm is threshed in a state of being bitten between the outer periphery of the rotating handling drum and the receiving net, and the kernels that have leaked from the receiving net are oscillated and stored in the first gutter or the second gutter. Then, it is temporarily stored in the grain tank 22 from the first gutter via the fryer cylinder 23, and is lifted and transferred from the second gutter to be re-sorted. On the other hand, the grain culm after threshing in the threshing unit 20 is conveyed to the rear of the machine body by the feed chain 26 and taken over by the waste straw chain, and supplied to the waste straw cutting device 30 arranged on the end side of the waste straw chain. Is done.

The scraper cutting device 30 includes a scraping blade 38.
And a cutting blade 39 are provided. The scraper blade 38 and the cutting blade 39 cut the waste straw into a predetermined length, and the cut waste straw is discharged to the field scene.

By the way, as described above, the transportation of the culm, threshing,
For example, threshing unit 2
Straw dust and dust will stay in the waste straw cutting device 30 or the like. In particular, in the waste straw cutting device 30, straw waste easily accumulates for waste straw processing, and it is necessary to frequently perform maintenance. Therefore, in the present embodiment, a part of the side surface of the waste straw cutting device 30 that needs to be frequently maintained as described above is covered with a one-touch detachable feed chain cover 51, and the remaining part is detachable cutter. Since the cover 52 is covered, the maintenance of the waste straw cutting device 30 can be easily performed if the feed chain cover 51 is removed.

[0027]

As described above, according to the first aspect of the present invention, the portion of the side cover that covers the side surface of the waste straw cutting device is formed by the side of the feed chain and a part of the side surface of the waste straw cutting device. By comprising a feed chain cover to cover and a cutter cover attached to the waste straw cutting device and covering a part of a side surface of the waste straw cutting device, the cutter cover forms a part of a side surface of the waste straw cutting device. Since only the feed chain cover is removed, maintenance of the waste straw cutting device can be easily performed by removing the feed chain cover. Further, the feed chain cover can be reduced in size, and the weight of the feed chain cover can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a combine to which the present invention is applied.

FIG. 2 is a cross-sectional side view of the waste straw cutting device.

FIG. 3 is a rear sectional view of the waste straw cutting device as viewed from the rear of the fuselage;

4A is a front view of a cutter cover, FIG. 4B is a side view thereof, and FIG. 4C is a bottom view thereof.

FIG. 5 is a side view of a rear portion of the combine.

FIG. 6 is a rear sectional view of the same.

FIG. 7 is a side view showing a state where the upper side cover is attached.

FIG. 8 is a partially cutaway front view showing a state where the feed chain cover is attached to the combine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Combine 12 Airframe 26 Feed chain 30 Discharge stirrer cutting device 31 Cutter case 32 Cutter side plate 40 Safety cover 42 Input pulley 47 Input gear 48 Follower gear 50 Upper side cover 51 Feed chain cover 52 Cutter cover

Claims (1)

[Claims] 1. A feed chain for feeding a harvested grain culm to a threshing unit, a waste straw cutting device mounted on the rear of the machine for cutting a waste straw after threshing, and a side surface of the feed chain and the waste straw cutting device. And a side cover that covers the side of the side wall of the waste straw cutting device, and a part of the side of the side chain of the feed chain and a part of the side of the side surface of the waste straw cutting device. A side cover of the mobile reaper, comprising: a cover; and a cutter cover attached to the waste straw cutting device and covering a part of a side surface of the waste straw cutting device.