JPS5936995Y2 - Reaping conveyance device in combine harvester - Google Patents

Description

[Detailed description of the invention] This invention creates a space below the conveyance path of the device that conveys the grain culm from the cutting blade toward the foot chain of the threshing device.
This invention relates to a reaping and conveying device for a combine harvester, which is configured so that straw and other debris generated during conveyance are removed and dropped downward without accumulating on the reaping section.

In the above-mentioned reaping transport device, the lower part of the transport path is made into a space where straw waste can fall, so it must be constructed so that no shielding member exists in that part. Naturally, the frame members also have to be arranged to avoid areas corresponding to the conveyance path, which creates a disadvantage in that the reaping frame becomes distorted at the bottom of the frame tank and lacks rigidity.Furthermore, there are restrictions on the arrangement of the transmission mechanism of the reaping section. This also creates the problem of complicating the transmission structure.

Therefore, the present invention was carried out with the purpose of providing a reaping conveyance device that can form a space in the lower part of the conveyance path, secure sufficient rigidity of the reaping frame, and have a simple transmission mechanism. .

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of the combine, in which a threshing device 4 is mounted above the machine frame 11 that supports above the crawler 10, and the foot chain 6 of the threshing device 4 is located at the center of the width of the whole machine. The threshing device 4 has a conventional structure including a handling barrel 12, a swing sorting body 13, etc., and a foot chain 6.
A culm 14 is provided oppositely above the threshing device 4, and its end extends to the straw cutter 11 behind the threshing device 4.

In addition, there is a control tube 16 and a seat 17 on the front right side of the entire aircraft.
A paddy tank 18 and the like are installed at the rear of the machine, and an engine 19 is installed at the center of the rear part of the machine.

Below the front part of the machine body on the front side of the threshing device 4, a frame member 8 extending in the front-rear direction extends to the left side, and a rear part 8a' of the frame member 8' extending in the front-rear direction to the right side is connected to a left side flare member. Both frame members 8,
8' is formed in an L-shape, and both rear parts 8a, 8
The rear end of a' is connected by a connecting rod 20, and the rear end 8a'
A space C with nothing below is formed on the right side of the
a.

A flat and thin drive case 9 is installed in the narrow space between 8a', and the human power section 9a is located above the rear of the case 9.
Configure it manually from scratch.

In addition, left and right dividers 21, 21' are attached to the ends of both frame members 8, 8', respectively, and the middle part of a horizontal frame member 22 is installed horizontally across the front side of both frame members 8, 8'. The central frame member 8'' is extended further forward, and an intermediate divider 21'' is attached to the tip thereof, and the cutting blade 1 is installed horizontally along the front surface of the horizontal frame member 22,
At the rear between each divider are tines 23 on the left and right.
A lifting case 24 and 24' having a diameter of 23' is installed obliquely, and both star wheels 2, 2' of the meshing type for scraping are arranged side by side at the upper rear part of the cutting blade 1. Projection belt type auxiliary conveyance bodies 3 and 3' extend diagonally forward from the star wheels 2 and 2', respectively, and as shown by the dotted line A in FIG. It is configured to be located on the longitudinal extension of the chain 6.

A transmission case 24 is protruded from the upper part of the drive case 9 below the rear of the left star wheel 2, and the transmission case 2
The front part of the intermediate transmission case 25 which extends upward from the rear of the star wheel 2 from the side of the transmission case 2 is connected to the transmission case 2.
4, the starting end 5a of the long lower conveyance chino 5 is connected in a transmission manner so as to be rotatable about a horizontal rotation fulcrum O.
The upper end of the intermediate transmission case 25 is connected to the lower surface of the intermediate transmission case 25 slightly upwardly, and the starting end 5a of the intermediate transmission case 25 is provided so as to enter and look into the rear gap between the left star wheel 2 and the auxiliary conveyance body 3 above it, and the lower conveyance chino 5 An adjustment lever extending from the lower surface near the end of the guide plate can be moved and adjusted freely with respect to the locking groove of the guide plate, and the lower conveyance ceno 5 can be rotated around the rotational fulcrum O in accordance with the length of the culm, as in the conventional type. Although it is installed so that the inclination can be changed and adjusted freely, the clamping surface of the lower conveyance cheno 5 is arranged as indicated by the dotted line A, and the space C is configured so that the space C is visible below the lower conveyance cheno.

In addition, a transfer conveyance chain 26 that inherits the culm side of the culm from the lower conveyance chain 5 is extended so as to approach the starting end of the foot chain 6, and the transmission pipe 2 is connected to the drive case 9.
A tip conveying body 7 that transmits power through the conveyor 7 is extended from the lower conveying chino 5 to above the transfer conveying chino 26.
The culm conveying surfaces of the ear tip conveying body 7 and the transfer conveying chino 25 are constructed as shown in the dotted line A above.

Therefore, when the machine is moved forward during combine harvesting work, each divider 21, 21: 21'' separates and the picture lifting case 24, 24' performs a lifting action, and both auxiliary conveyance bodies 3, 3' The cutting blade 1 cuts the grain while scraping it in between, and both star wheels 2゜2' scrape in the grain culm between them and send it out to the rear.
The culm side portion is inherited by the starting end 5a of the lower conveying chino 5 in a state where it is about to be sent rearward by both star wheels 2, 2'.

While the lower conveyor chain 5 is holding and conveying the culm base part, the ear tip conveyor 7 conveys the head side, and when the lower conveyor chain 5 transfers the culm base side to the transfer chain 26, it is then inherited by the foot chain 6. It is separated and supplied to the threshing device 4.

In that case, the grain culms are transported from between the star wheels 2 and 2' to the foot chain 6 in the front-rear direction along the dotted line A as shown in FIG. Since it is in space C, it is transported without any obstructions, and even if straw waste falls, it is discharged to the ground side through space C.

Furthermore, when the rotation of the lower conveyor chain 5 is adjusted according to the length of the culm, the entire chain 5 rotates around the rotation fulcrum O and moves up and down with force on the rear end side as shown by the arrow. , since the starting end 5a is above the star wheel 2 and the rotational fulcrum O is close to the bottom, the transfer posture is almost unchanged without changing much, and the transfer half chain is moved from the terminal end side of the lower transfer chain 5. By changing the clamping position inherited by the culm 26, it is possible to adjust the depth of supply to the threshing device 4 to be approximately the same regardless of whether the culm is long or short.

In this way, the present invention has the left and right frame members 8, 8 forming the rear part of the cutting frame of the cutting blade 1 from the horizontal mounting part.
・ is disposed in a connecting frame such that it is biased toward the side of the machine in a plan view and is elongated in the front and back direction, and is inclined toward the rear height in a side view to form a connecting framework, and the cutting width of the cutting blade 1 is A space C is formed below the lower conveying cheno 5 for conveying the culm, which extends from the pair of star wheels 2, 2' for raking disposed at the upper center of the direction toward the foot chain 6 side of the rear threshing device 4. In the combine harvester constructed as shown in FIG.
A flat drive case 9 is fitted and supported and fixed in the 8' portion, and input is made to the rear end of the drive case 9, and the lower conveyor chino, the ear tip conveyor, and the star are connected from the front end of the drive case. Since the bottom of the tank is designed so that power can be transmitted to the foil, lifting case, etc., the lower conveying cheno 5 can smoothly convey the grain culms inherited from both star wheels 2 and 2' toward the threshing device. Since the lower part of the route is a space C, there is nothing that gets caught in the lower part during conveyance, and straw, grass, etc. can be pulled out downward without blocking the passage or causing disturbance to the culm. The culm can be transported.

Furthermore, in order to make the space C below the conveyance path, even though the frame members making up the reaping frame are arranged offset to the negative side in the width direction, the frame members in the offset portion are flat. Since the drive case 9 is fitted and fixed, the drive case reinforces the space between the frame members, making the entire framework highly rigid and strong.

Furthermore, the drive case is installed along a frame member with a high rear slope, and is structured so that input is input from the rear end and transmission is transmitted from the front end to various mechanisms such as the lifting case and the conveyor, so the entire transmission mechanism is It has a compact structure and has the characteristics of a robust structure with fewer externally exposed parts.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a schematic side view of a combine harvester, FIG. 2 is a schematic plan view thereof, FIG. 3 is a part of FIG. 1, and FIG. FIG. 5 shows a part of FIG. 4. 1... Cutting blade, 2, 2'... Star wheel, 4... Threshing device, 5... Lower conveyor cheno, 6...・Feet chain, C...
・Space, 8, 8' ... Reaping frame, 9...
...Drive case.

Claims (1)

[Scope of utility model registration request] The left and right frame members 8, 8', which form the rear part of the cutting blade 1 horizontal rack installation part of the reaping frame, are located elongated in the front-rear direction and biased towards the side of the machine body in plan view, and are elongated in the front-rear direction when viewed from the side. Then, a connecting frame is arranged so as to be inclined at the rear height, and a foot chain 6 of the rear threshing device 4 is connected from a pair of raking star wheels 2, 2' arranged at the upper center of the cutting width direction of the cutting blade 1. In a combine harvester configured such that the lower part of the lower conveyor cheno 5 for conveying the culm which extends toward the side forms a space C, the connecting frame is constructed so as to be biased towards the side of the machine body and tilted toward the rear height. A flat drive case 9 is fitted, supported and fixed into the left and right frame members 8, 8', and the rear end of the drive case 9 is manually operated.
1. A reaping conveyance device for a combine harvester, characterized in that the reaping conveyance device for a combine harvester is configured such that power can be transmitted from the front end of the drive case to a lower conveyance chino, a tip conveyor, a star wheel, a hoisting case, etc.