JPH0433406B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combine harvester equipped with a seeding device, and the conventional combine harvester of this type is disclosed in Japanese Patent Application Laid-Open No.
As seen in Japanese Patent No. 16612, it is known that a tiller equipped with a seeder is attached to the rear of a combine harvester to apply fertilizer and sow seeds while tilling. However, in this conventional device, the cut straw cut by the cutter is scraped out by the scraping device and discharged to the field, so the straw discharge tube must be configured to be long backward and downward. The height of the rear end of the straw discharge pipe above the ground has become low, making it impossible to lift the tilling device with a seeding machine high above the ground, and there is an unforeseen problem that the tiller cannot be turned without doing some tilling work when turning. There was a drawback that things happened.

This invention takes the following technical measures for the purpose of solving the above-mentioned drawbacks.

That is, in this invention, a reaping and conveying device 9 having a plurality of weed cutting bodies 10 is provided at the front of a traveling vehicle body 2, a threshing machine 4 is mounted on the upper part of one side of the vehicle body 2, and a threshing machine 4 is mounted on the upper part of the other side of the vehicle body 2. A tank 5 for storing grain is provided, and a control seat 8 is arranged in the front part of the combine harvester 1. A cutter 24 for cutting the straw after threshing into small pieces is extended rearward beyond the rear end of the vehicle body 2 at the upper rear side of the combine harvester 1. A cross-flow fan 23 is provided at the lower front side of this cutter 24, and a cut straw discharge guide plate 25 is provided at a portion reaching from the lower side of the cross-flow fan 23 to the lower side of the cutter 24. A wide space A is formed across the entire width under the straw discharge guide plate 25, and a cultivating device 28 with a seeding machine that sows seeds while cultivating the field is disposed in this space A. The sowing device 53 of the cultivating device 28 is attached to the rear end so as to be movable up and down, and the sowing device 53 of the cultivating device 28 has a plurality of sowing ports 56a provided thereon.
0, 10..., and the tilling device 37 has a plurality of tilling claws 52, 52.
... is arranged behind each of the seeding ports 56a at the same pitch as the seeding ports, and with a phase difference in the width direction of the machine by half of this pitch. did.

Therefore, with the above structure, the present invention allows the cultivation device with a seeding machine to be mounted on the lower rear side of the combine so that it can move up and down without extending long to the rear, resulting in a compact structure and a cutter. The cut straw that is cut into small pieces can be scattered and discharged far behind by a cross-flow fan, and the cut straw does not accumulate unnecessarily on the tilling device with a seeder, allowing accurate sowing work to be carried out while reaping and threshing. can.

In particular, by arranging the seeding port and the tilling claws at the same pitch as the weeding body at the front end of the machine body, and out of phase with each other by half a pitch in the width direction of the machine, the seeding port and the tilling claws can be arranged front and back. If set up, while harvesting is carried out by controlling the direction of movement of the machine using the weed cutting body, seeds are sown on the flat land between the stubble rows, and then the sown area is covered with raised soil made by opening grooves with tillers. This prevents seeds from being sown on stubbles and large stubbles from sitting on top of sown seeds, resulting in effects such as a significant improvement in the germination rate of seeds.

One embodiment of the present invention will be described in detail based on the drawings. Reference numeral 1 denotes a combine harvester, which is constructed as follows. A pair of left and right crarollers 3 are provided at the bottom of the car body 2, an automatic feeding threshing machine 4 is mounted on the upper left side of the car body 2, a grain tank 5 is installed on the upper right side, and a paddy discharge hopper 6 is installed below it. A grain bag pedestal 7 is stretched over the pedestal 7, an engine (not shown) is mounted on the front part of the pedestal 7, and a control seat 8 is provided above it. The device 9 is mounted so as to be movable up and down. In the embodiment, the reaping and conveying device 9 is designed for four-row reaping,
It has five weeding bodies 10, 10... and four pulling devices 11, 11..., and a clipper-type cutting blade 13 is attached to the weeding rod 12 to which the weeding bodies 10, 10 are attached. A grain culm conveying device 14 is provided from the upper part of the grain culm 13 toward the rear and upper side, and is configured to convey the planted grain culm to the rear and upper side while raising it.

Note that 15 and 16 in the figure indicate narrow guides.

Reference numeral 17 denotes a support frame for operation to which a control handle lever 18 and instruments are attached. Reference numeral 19 indicates a cover that covers the feed chain 21.

Reference numeral 20 denotes a straw conveyor, which transports the straw discharged from the straw outlet of the threshing machine to the rear in a sideways state, and the straw conveyor 20 is installed diagonally in plan view with the extension part 21a of the feed chain. It consists of chain 22. These transfer chains extend rearward through the upper side of the No. 4 funnel, and the straw removal transfer chain 22 is located at the top.

23 is a cross-flow fan, which is connected to the straw transfer chain 2;
It is mounted on a rotating shaft that extends in the horizontal direction on the lower side of the threshing machine, and is installed so as to suck in the waste material sorted by the threshing machine and blow it backward over the entire width of the left and right sides.

Reference numeral 24 denotes a disc type cutter, which is located below the terminal end of the straw removal chain 22, and has a number of disc cutter blades 24a fixed at predetermined intervals to one shaft that is mutually inverted, and is cut into the other shaft. A large number of rotors 24b are attached to sandwich the cutter blade 24a.

Reference numeral 25 designates a cut straw discharge guide plate, which is comprised of a sliding portion 25b extending rearward and downward from the rear end of a casing portion 25a that receives the outer periphery of the bottom of the cross flow fan 23, and is provided over approximately the full width of the cross flow fan 23. .

The cross-flow fan 23 has left and right side plates 23a to which it is attached having narrow widths in the front and back, and is detachably provided on the rear end surface A of the threshing machine 4. An example of this attachment/detachment means is the threshing machine 4 as shown in FIG.
The crossflow fan 2 is attached to the pin 26 protruding inside the side plate of the
A hook 27 provided on the bearing member of No. 3 is hooked onto the shaft so that it can be attached and detached very easily. The guide plate 25 is fixed to the side plate 23a.

Further, the disc-type cutter 24 is attached to the above-mentioned reversing shaft installed between the left and right side plates 24a, 24a, and the entire cutter 24 can be attached and detached to the rear of the side plate 23a of the cross-flow fan 23 section. It is set up in This attachment/detachment means is also attached by the same means as the above-mentioned attachment means of the cross-flow fan 23, and the cross-flow fan 23 section is removed and the disk-type cutter 24 is directly attached to the threshing machine 4.
It is configured so that it can be installed on the rear end surface of the In this case, the cut straw cut by the cutter 24 is allowed to fall downward without being thrown backwards.

Reference numeral 126 denotes hitch metal fittings, which are approximately U-shaped in side view, and are fixed to the rear of the vehicle body 2 in plural pieces, into which pipes can be fitted.

Reference numeral 127 indicates a bracket installed upright at the rear end of the vehicle body 2.

Reference numeral 28 denotes a cultivating device with a seeding machine, and its frame 29 includes a pipe 30 that fits into the hitch fitting 126, and vertical frames 31, 31, 32 that are vertically fixed to the rear side of this pipe 30. This vertical frame 3
1, 31 A rotating pipe 34 rotatably attached to the lower end via a cylindrical metal 33, supporting frames 35, 35, extending rearward that are integrally attached to this rotating pipe 34, and this supporting frame. It consists of a rectangular tube member 36 and a pipe 47 which are horizontally suspended and fixed on 35. A tilling device 37 is attached to the lower part of the supporting frames 35, 35. 38 is tillage rotary, 3
9 is a tilling cover, and 40 is a tail wheel.

Reference numeral 41 denotes a hydraulic cylinder device, the cylinder side of which is pivotally connected above the vertical frame 32, the tip of the piston is pivotally connected to the support frame 35, and the tilling device 37 is moved up and down by the coming out and going in of the piston. It is possible.

Reference numeral 42 denotes an engine, which is mounted on the upper part of an engine base 43 integrally provided on the right side of the pipe 30. A belt case 44 which also serves as a frame extends forward and downward from the output shaft of the engine, and a counter shaft 45 is attached to this. The counter shaft 45 is provided so as to be rotatable and transmitted by a belt.

This belt case 44 is connected to the pipe 3.
0 and the engine base 43 are substantially connected to serve as reinforcement for the engine base 43. Note that the counter shaft 45 is rotated at a reduced speed.

Reference numeral 46 denotes a chain case, which is provided between the rotary pipe 34 and the tiller attachment pipe 47 attached to the support frame 35, and a universal joint between the input shaft of the chain case 46 and the counter shaft 45. 48, this chain case 46
The rotary shaft 50 is configured to be belt-transmitted from the output shaft 49 on the rear end side. 51 is a belt case.

A tilling claw 52 attached to a rotary shaft 50,
52... are installed in clusters with a predetermined interval l ₁ in the left and right direction, and the interval l ₁ is approximately the same as the row spacing l ₂ , and the position where they are installed is the same as that of the reaped grain culm. They are arranged in a relationship that roughly matches the rows (rows of rice plants). However, no tilling claws are provided between the rows at the left end. Further, the tilling claws 52, 52 are attached so that the soil at the base of the plant tilled is piled up on the left and right sides, but only the left and right end portions are configured so that the soil is blown inward.

Reference numeral 53 denotes a seeding device, which includes a hopper 54 for storing wheat seeds, and a feeding section 55 attached to the lower part of the hopper.
A transfer pipe 56 that guides and transfers the seeds to be delivered downward.
A supporting frame 5 facing rearward is attached to the square tube member 36.
7 is attached to make it a four-base support. A spike is attached to a drive shaft 58 of this feeding portion 55, and the drive shaft 58 is chain-transmitted from a grounding wheel 59.

The seeding port 56a at the lower end of the transfer pipe 56 of the seeding device 53 is located between the rice plants in front of the rotary 38 by the tilling device 37, and is located at a location away from the position dug by the rotary 38. has been done.

Reference numeral 60 denotes a herbicide spraying device, which is provided with a feeding device 62 at the bottom of a hopper 61, and this feeding device 62 is attached to a support frame 63 which is removably provided on the side frame of the cutter 24; Four herbicide spraying devices 60 are installed, and each feeding device 62
A vinyl pipe 64 is attached to the lower end of the pipe 64, a steel wire 65 is passed through the pipe 64, and the pipe 64 is regulated so as to go backward and downward, and the lower end of the pipe 64 is positioned on the ridge plowed by the rotary 38. are doing. The feeding shaft 66 of the feeding device 62 is provided to be rotated by transmission from the drive shaft 58 by a chain.

The grounding ring 59 is disposed at the rear of the splitting body 10 on the uncut culm side of the combine so as not to pass over the rice plant or after it has been plowed.

The hydraulic cylinder device 41 is operated by the hydraulic circuit shown in FIG.
1a is electromagnetically operated, solenoid L ₁
When the solenoid L 2 is energized, the valve switches to the left, and when solenoid L ₂ is energized, the valve switches to the right, causing the piston to move in and out.
SW ₁ is attached to the side of the control seat 8, and switch SW ₂ is attached to the side wall of the grain tank 5. Note that 67 in the figure is a foldable carrier on which an assistant can ride.

Next, to explain the effect of the above example in detail, first,
Before starting work, wheat seeds and herbicide are supplied into the hoppers 54 and 61, and the engine 4
At the same time as the combine harvester 2 is started, various parts of the combine harvester 1 side are started using the engine under the control seat 8 to perform harvesting and threshing operations. That is, the planted grain culm is divided by the weed cutting body 10 as the vehicle body runs, and is pulled up by the pulling device and then moved to the cutting blade 1.
The grain is harvested at step 3 and sent by the grain conveying device 14, and the tip part is sent into the handling chamber of the threshing machine 5, and the stock part is taken over by the feed chain and sent later. and,
The threshed waste straw is further transferred over the No. 4 funnel by the extension part 21a of the feed chain, and at this time, the tip side coming out of the handling chamber is transferred by the waste straw transfer chain 22. . On the other hand, the threshed paddy will be sent into the grain tank 5.

At the same time as this reaping and threshing operation, the operator
Alternatively, an assistant on the carrier 67 operates switch SW ₁ or SW ₂ to move the tiller and tiller device 28 downward by protruding the piston of the hydraulic cylinder device 41, bringing the rotary 38 into contact with the ground, and starting tilling work. do. At this time, the grounding wheel 59 touches the ground and rotates, and the feeding section 5 of the seeding device 53
The drive shaft 58 of No. 5 is transmitted through a chain. Therefore, wheat seeds are sown from the seeding port 56a of the transfer pipe 56 into the space between the harvested rice plants.
Then, the rice plant portion is tilled by the tilling claws of the rotary 38, and the soil is brought to the inner side between the rows and the seeds are covered with soil. At this time, the seeds sown in the flat areas between the rows are covered with almost uniform soil, so they germinate uniformly and have a good germination rate.

At the same time, the herbicide spraying device 60 is driven, and the herbicide in the hopper 61 is fed out by the feeding device 62, flowing down the inside of the pipe 64, and is scattered onto the covered soil.

Further, the waste straw transported by the waste straw transfer chain 22 is cut into small pieces by a disk-type cutter 24, and at the same time is blown far backward by a cross-flow fan 23.

At this time, since the cut straw is received by the cut straw discharge guide plate 25, the cut straw does not fall straight down, but jumps over the tilling device 37 and falls while scattering onto the field after tilling and seed removal.

At this time, the cut straw discharge guide plate 25 is stretched backward from the lower side of the cross-flow fan 23, and is blown backward by the cross-flow fan 23 without having to extend it backward for a long time. In order to increase the height of part A and install the cultivating device 28 with seeder in this space in a state where it can be moved up and down considerably, when working near the ridge and turning, operate switch SW ₁ or SW ₂ to move the piston. Rotary 38 when retracting and moving up cultivating device 28 with seeding machine
The part can be sufficiently lifted from the field surface and can be turned accurately.

As described above, since the present invention has the above-mentioned structure, although the tilling device with a seeder is attached to the rear part of the combine harvester so as to be movable up and down, it has a compact structure. It has the effect of being able to be lifted high and rotated reliably.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view thereof, Fig. 3 is a side sectional view of the main part, and Fig. 4 is a simplified plan sectional view thereof. , 5th
The figure is a partially simplified slope view of the main part, Fig. 6 is a slope view of the main part, Fig. 7 is a simplified plan view for explaining the function, and Fig. 8 is a simplified plan view of the main part.
The figure is a hydraulic circuit diagram, and FIG. 9 is an electric circuit diagram. Symbols in the diagram: 1 is a combine harvester, 2 is a running vehicle body, 4
is a threshing machine, 7 is a pedestal, 8 is a control seat, 23 is a cross-flow fan, 24 is a cutter, 25 is a guide plate, 28
indicates a tilling device with a seeding machine, and A indicates a space.

Claims (1)

[Claims] 1. A reaping and conveying device 9 having a plurality of weed cutting bodies 10 is provided at the front of the traveling vehicle body 2, a threshing machine 4 is mounted on the upper part of one side of the vehicle body 2, and the threshed grains are stored in the upper part of the other side. A tank 5 is installed, and a pilot seat 8 is installed in front of it.
A cutter 24 for cutting the waste straw after threshing into small pieces is installed at the rear upper part of the combine 1 in which the combine harvester 1 is arranged, extending further back than the rear end of the car body 2, and a cross-flow fan 23 is installed at the front lower part of the cutter 24. At the same time, a cut straw discharge guide plate 25 is provided in a portion reaching from the lower side of the cross-flow fan 23 to the lower side of the cutter 24, and a wide space is provided below the cut straw discharge guide plate 25 over the entire width. A tilling device 28 with a seeding machine for sowing seeds while cultivating the field is disposed in this space A and is attached to the rear end of the traveling vehicle body 2 so as to be movable up and down. The seeding device 53 of No. 28 has a plurality of seeding ports 56a provided therein and is disposed at the rear on the line of advance through which each of the sowing bodies 10, 10..., and the tilling device 37 has a plurality of tilling claws 52, 52. . . . are disposed behind each seeding port 56a at the same pitch as the seeding port, and with a phase difference in the width direction of the machine by half of the pitch.