JPS5912038Y2 - Combine harvester straw conveyor - Google Patents

Description

[Detailed description of the invention] This invention is a combine harvester that is equipped with a reaping device in front of the threshing machine, and a straw cutter, a straw collecting table, etc. attached to the rear of the threshing machine, and discharges straw from the threshing machine to the rear of the threshing machine. Regarding equipment.

Generally, waste straw was carried out toward the cut side behind the feed chain, but for example, as in Japanese Utility Model Application Publication No. 47-20766, the waste straw chain was made to protrude significantly behind the threshing machine, and It has been difficult to reduce the size of the combine harvester by making it more compact.

The present invention addresses the above-mentioned conventional problems, and consists of two upper and lower straw scavenging chains that are connected to the rear end of the feed chain that is stretched on the left side of the machine, and are connected to the upper and lower straw chains that are substantially orthogonal to each other. The straw discharging chain is pivoted vertically and horizontally, and the feeding end of the feed chain and the feeding start end of the upper wandering straw chain are inserted into these ring-shaped enclosures, and the upper wandering chain is pivoted vertically and horizontally. The drive sprocket and idler that interlock and connect the straw chain to the lower straw discharge chain are supported so as to be able to adjust tension freely, the tension spring is pressed into contact with the upper straw discharge chain, and the lower straw discharge chain is interlocked and connected to the feed chain. By making the shaft-supporting directions different by about 90 degrees, the conveying sections of the chains that are perpendicular to each other can be overlapped to ensure the straw transfer operation, which prevents the straw from falling off and generating dust at the transfer sections of the chains. The straw removal system can be moved smoothly along the L-shaped conveyance path, and the straw removal section at the rear of the machine can be made compact in plan view. The machine body can be easily miniaturized, and by adjusting the tension force of the lower straw evacuation chain by changing the support positions of the sprocket and idler, the upper straw evacuation chain can also be properly maintained under tension by the tension spring. It is an object of the present invention to provide a straw removal conveying device for a combine harvester in which the tension force of each of the chains can be easily adjusted with a simple structure.

Embodiments of the present invention will be described below based on the drawings.

Figure 1 is a right side view of the combine, Figure 2 is a left side view of the same,
Figure 3 is a plan view of the same, in which 1 is the machine base, 2 is a truck frame equipped with a pair of running crawlers 3, 3 on both left and right sides, 4 is a main beam that supports the lifting section A, and 5 is this A lifting cylinder 6 is stretched between the main beam 4 and the truck frame 2, and 6 is a threshing machine mounted on the machine base 1. Inside this, a handling cylinder 7 is mounted on a shaft rack along the longitudinal direction of the machine base 1. are doing.

Reference numeral 8 denotes a reaping device for two-row mowing, which includes a plurality of grass division plates 9, 9, and 10, a cutting blade 11, and a reaping frame 12, and connects the reaping frame 12 to the main beam 4 via a worm case 13 or the like. On the other hand, the entire reaping device 8 is raised and lowered about the pivot shaft 14 by operating the cylinder 5 that supports the middle of the main beam 4.

Reference numeral 15 denotes a grain culm transfer device, which is equipped with a feed chain 16 and a culm rod 17, and is stretched along the handling opening on the left side of the threshing machine 6.

18 is a step located at the front right side of the threshing machine 6; 19 is a gasoline engine mounted on the machine base 1 at the rear of the step 18; a driver's seat 20 is mounted on the engine 19; A driving operation section 23 including left and right side clutch levers 21, 22 is formed at the front of the vehicle.

Further, 24 is a paddy receiving stand provided on the right side of the threshing machine 6 and at the rear of the engine 19, and the upper part of this paddy receiving stand 24 has two paddy throwing ports 25. A grain outlet body 26 with 25 is facing.

This outlet body 26 is connected to a grain frying conveyor device 27 that takes out fine grains from the first mouth.

Furthermore, 28 is a drive sprocket for the traveling crawler 3;
Reference numeral 29 indicates an idle roller that supports the running crawler 3 together with the sprocket 28, and 30 indicates a plurality of track rollers that are brought into sliding contact with the lower inner surface of the running crawler 3.

Next, a worm case 13 is installed above the cutting blade 11, and a star wheel 31 on the driving side is attached to the worm case 13.
In addition, driven star wheels 32 are provided on the right side, and each star wheel 31, 32 is connected to the left and right grain culm lifting devices 3.
3. It is equipped to correspond to 34.

A lower conveyance chain 35 is arranged below the star wheel 31 on the drive side.

Furthermore, a vertical conveyance chain 36 whose length can be adjusted is stretched obliquely at the rear upper part of the star wheels 31 and 32, and the lower part of the upper end is supported by a gear box 37 attached to the rotation pivot shaft 14, and A long/short culm adjustment lever 38 is connected to the lower end side of the chain 36, and the lever 38 is engaged with a long/short culm adjustment plate 39 fixed to the back of the right pulling device 34, and the star foil 31. The chain 36 is stretched between the rear part of the chain 32 and the starting end of the feed chain 16 so that its length can be freely adjusted.

On the other hand, 40 is a waste straw processing device installed at the rear of the threshing machine 6, and this processing device 40 includes a cylinder cutter 41 that scrapes and cuts the waste straw, and an upper and lower part installed above the cutter 41 in two stages. Straw removal chain 42. 43 and the cutter 41
The straw removal chains 42 and 43 are connected to the end of the feed chain 16, and the straw removal chains 42 and 43 are connected to the feed chain 16. 43 are extended substantially at right angles, and the culm conveyance path is shaped into a substantially right angle L shape.

Further, as shown in FIGS. 4 to 8, the upper straw chain 42 is stretched between a U-shaped rod guide 44 provided at the starting end and a drive sprocket 45 provided at the terminal end, while the lower straw The chain 43 is stretched parallel to the chain 42 via a drive sprocket 46 and an idler 47 that are interlocked with the feed chain 16.

And the drive sprocket 46 of the lower straw removal chain 43
is interlocked and connected to the idler 48 at the end of the feed chain 16 via a bevel gear of a gear box 49, while the drive sprocket 45 of the upper straw removal chain 42 has a larger diameter than the idler 47 at the lower side. and the shaft 70
are integrally connected to the idler 47 through the feed chain 16, and the lower and upper straw scavenging chains 43. 42, and the structure is such that the feed speed of the upper straw removal chain 42 is faster than the feed speed of the lower straw removal chain 43.

In addition, each of the straw removal chains 42. A culm base guide 49 and a straw removal guide 50 are provided along the culm base guide 43, and the culm base guide 49 has a shape that can be expanded and contracted, and this tip auxiliary guide 49 a
By appropriately stretching the culm, the culm is sent to the focusing device 51, while the auxiliary guide 49a is moved to the main body side guide 49.
By storing the culm in the cylinder cutter 41, it is possible to switch operations such as feeding the culm into the cylinder cutter 41 and cutting it.

Here, reference numeral 67 is an adjustment bolt for appropriately fixing the auxiliary guide 49a to the main body side guide 49.

Then, the straw chain 4 is removed from the feed chain 16.
2. Shimawari Straw Chain 43 inherited the culm of straw that was inherited from 43.
The straw is fed by the upper straw chain 42 at a faster speed, and the straw is fed to the cylinder cutter 41 or the converging device 51 while sequentially tilting the culm posture so that the culm is at the top.

In addition, the rod guide 49 and the straw removal guide 50 each have a culm attached to each chain 42. 43 side is provided.

This device 52 includes a pair of guide rods 53, 53, 54, 54 that support the respective guides 49, 50, and a straw removal chain 42 attached to the guide rods 53, 53, 54, 54.
, 43 side leaf spring 55. 56, and a guide case 57 that supports the leaf springs 55, 56 via receiving plates 55a, 56a and is fixed to the threshing machine 6 side via a cantilever shaft 68 or the like. The straw chain 42. 43
By pressing it against the side, you can easily remove the leaf spring 55. 56 can be installed, and the guide 49. By increasing the effective stroke of the device 52, the device 52 is designed to increase its pinning effect and to make the device 52 itself more compact.

Furthermore, 58 is a chain guide provided on the upper straw removal chain 42, and 59 is a chain guide provided on the lower straw removal chain 43, and each chain guide surface 58a, 59a is connected to each straw removal chain 42. It is shaped so as to come into contact with the back side of the conveyance side of 43.

The chain guides 58, 59 are U-shaped brackets 6.
This bracket 60 is fixed to the side wall 62 on the body side via a support ball 61.

Further, a sliding rod 64 for fixing the drive sprocket 45 of the upper straw removal chain 42 and the bearing member 3 of the idler 47 of the lower straw removal chain 43 is provided on the bracket 60 so as to be adjustable left and right, and the sliding rod 64 is moved as appropriate. By adjusting each of said chains 42. It is designed to give tension to 43.

Furthermore, 65 is a tension spring provided on the non-conveying side inside the upper straw chain 42, and the tip side of the spring 65 is curved, and the convex curved surface is connected to the chain 42.
The chain guide 58 is shaped so as to be in sliding contact with the chain 42 and constantly apply tension to the chain 42, and is attached to the chain guide 58 via a support member 66 so as to absorb slack in the chain 42.

By the way, the idler 48 at the feed end of the feed chain 16 and the drive sprocket 45 of the upper straw chain 42
is installed at the same horizontal position as the straw removal chain 4.
2. A bar guide 44 supporting the feed start end on the other end side and the end end of the feed chain 16 are connected in a chain, and the feed start end of the upper straw chain 42 and the feed end of the feed chain 16 are connected in a ring shape. By mutually inserting them into the enclosure, the culm can be transferred easily and reliably between the two.

In addition, the feed chain 16 and the straw removal chain 42,
A culm cover 69 having an L-shaped plane is provided on the outside of the feed chain 43 to cover these and to convert the horizontal culm into an upright state as the feed chain 16 moves.

The present invention is constructed as described above, and the straw removal chain 42 is connected to the feed chain 16. Drives 43,
The culm is transferred to the terminal end by the feed chain 16 with the tip portion inserted into the threshing machine 6, and a straw removal chain 42 is connected to the feed chain 16 in a chain shape and extends at a substantially right angle. 43, and when the auxiliary guide 49a is extended from the culm guide 49, the culm transfer of the high-speed upper stage straw removal chain 42 concentrates the waste straw to be sent with the culm at the beginning. It is caused to fall and accumulate in the device 51.

On the other hand, with the auxiliary guide 49a stored in the main body guide 49, the straw removal chain 42. When driving 43,
The chain 42. with the culm at the beginning. The waste straw sent by the cylinder cutter 43 falls into the cylinder cutter 41, is cut into appropriate lengths, and is scattered through the discharge port onto the field.

As is clear from the above embodiments, the present invention has two upper and lower straw scavenging chains 42 and 43 that are connected to the rear end of the feed chain 16 stretched on the left side of the machine and are substantially orthogonal thereto. 16 in the vertical direction and said straw removal chain 42. 43 in the horizontal direction, the feed end of the feed chain 16 and the feed start end of the upper straw chain 42 are inserted into the ring-shaped enclosure, and the upper straw chain 42 is connected to the lower straw chain. A drive sprocket 45 and an idler 47 which are interlocked and connected to the shaft 43 are supported so as to be tension-adjustable, a tension spring 65 is pressed against the upper straw exhaust chain 42, and the lower straw exhaust chain 43 is interlocked and connected to the feed chain 16. The chains 16 are made orthogonal by having their supporting directions different by approximately 90 degrees.
, 42 can be overlapped to ensure the transfer operation of the removed straw, preventing the removed straw from falling off and generating dust at the receiving portions of the respective chains 16 and 42, and transporting the removed straw in an L-shape. To be able to move smoothly along a system path, to have a compact straw moving part at the rear of the machine in a plan view, and to easily downsize the combine machine by shortening the longitudinal length of the machine compared to the conventional one. In addition, by changing the support positions of the sprocket 45 and the idler 47 to adjust the tension of the lower straw removal chain 43, the upper straw removal chain 42 can also be properly maintained under tension by the tension spring 65, and each of the above Chain 42. This has practical effects such as the tension force of 43 can be easily adjusted with a simple structure.

[Brief explanation of the drawing]

Fig. 1 is a right side view of a combine harvester showing an embodiment of the present invention, Fig. 2 is a left side view of the same, Fig. 3 is a plan view of the same, Fig. 4 is an enlarged explanatory view of the main parts, and Fig. 5 is a front view of the combine harvester. 6 is a cross-sectional view taken along the line II--II of the previous figure, FIG. 7 is an exploded plan view of the main part, and FIG. 8 is a partially enlarged view of the main part. 16...Feed chain, 42, 43...
... Straw removal chain, 45 ... Drive sprocket, 47 ... Idler, 65 ... Tension spring.

Claims (1)

[Scope of utility model registration request] At the rear end of the feed chain 16 stretched on the left side of the machine, there are two upper and lower straw removal chains 42, which are substantially orthogonal thereto. 43 are connected in a row so that the feed chain 16 is vertically connected, and the straw removal chain 42. 43 in the horizontal direction, the feed end of the feed chain 16 and the feed start end of the upper straw chain 42 are inserted into the ring-shaped enclosure, and the upper straw chain 42 is inserted into the lower straw. A drive sprocket 45 and an idler 47 which are interlocked and connected to the straw chain 43 are supported so as to be tension-adjustable, a tension spring 65 is pressed into contact with the upper straw discharge chain 42, and the lower straw discharge chain 43 is interlocked and connected to the feed chain 16. A combine harvester straw conveying device featuring: