JPH07115832A - Reaping suspension device in combine or the like - Google Patents

Abstract

PURPOSE:To provide the subject device so designed that the lower conveying channel for reaped grain culms is made flat and the scheme of a suspension link between the vehicle body and reaper is made simple, thereby preventing accumulation of weeds introduced together with grain culms conveyed. CONSTITUTION:The upper end of a reaping frame 2 in the rear of a reaper is supported so as to be vertically revolvable around a support shaft, the outer peripheral surface 4a at left and right positions of a reaping gear case 4 connected to the lower end of this reaping frame 2 are respectively revolvably connected through the bracket 7 of a suspension link 6 supportedly suspended on a traveling frame 5, and front frames 9 to be fitted with a cutting blade device are extendingly and forwardly provided respectively from the left and right ends of the gear case 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvesting suspension device such as a combine and the like, and a harvesting gear case is connected to a lower end portion of a harvesting frame of the harvesting device, and the harvesting gear case and a traveling frame on the vehicle body side are connected to each other. It can be used for things such as those provided with a suspension link for suspending and supporting the vertical rotation of the reaping device.

[0002]

2. Description of the Related Art Conventionally, in a mowing device, as shown in FIG. 6, a mowing gear case connected to a lower end of a mowing frame and a front frame are separately provided. However, it is general that the cutting gear case is fixed on the front frame. However, when the reaping gear case is arranged on the front frame in this way, not only is the conveying path of the cut culms obstructed by the reaping gear case, but not only resistance during the conveyance of the culms, but also the traveling frame. By suspending the front frame with a suspension link that supports the harvesting device by suspending it on the frame,
The accumulation of weeds caught between the suspension part or the front frame and the cutting gear case hinders the transportation of the culm.

Therefore, the present invention is intended to prevent the transportation of grain stalks from being obstructed by extending the front frame from the mowing gear case toward the front and suspending the mowing gear case by the suspension link. Is.

[0004]

The present invention is directed to a cutting device 1
An upper end of the rear mowing frame 2 is rotatably supported around a support shaft 3, and outer peripheral surfaces 4a of left and right positions of a mowing gear case 4 connected to a lower end of the mowing frame 2 are supported by a traveling frame 5. Each of the suspension links 6 is rotatably suspended by a bracket 7, and a front frame 9 for attaching the cutting blade device 8 is provided extending forward from the left and right ends of the mowing gear case 4. And a harvesting suspension device such as a combine.

[0005]

The action and effect of the invention: The mowing frame 2 is rotated up and down about the support shaft 3, and the up and down rotation of the mowing frame 2 raises and lowers the mowing device 1 with respect to the soil surface to perform mowing work. At the time of this mowing operation, by extending the front frames 9 from the left and right ends of the mowing gear case 4 connected to the lower end of the mowing frame 2 to the front, the lower conveying passage of the grain stem becomes flat. In addition, the bracket 7 of the pair of left and right center-folding suspension links 6 for restricting the wobbling of the reaping device 1 is rotatably supported by the outer peripheral surface 4a of the reaping gear case 4 at appropriate positions. ,
It is possible to smoothly convey the grain culms by reducing the conveyance resistance caused by the weeds being caught and accumulated in the suspension portion of the suspension link 6.

As described above, the reaping gear case 4 which has hitherto protruded above the front frame 9 and has been an obstacle to the transportation of the culm,
A simple suspension structure in which the suspension link 6 which is formed in the same plane as the front frame 9 and which has been complicated by connecting to the front frame 9 in the past is directly connected to the mowing gear case 4. As a result, the transportation path of the grain culms is obstructed by the mowing gear case 4, and the complicated suspension part of the suspension link 6 and the front frame separate from the mowing gear case 4 are provided.
The weeds can be smoothly harvested without the obstruction of the transportation of the grain culms due to the accumulation of the weeds caught in the space 9 and the like.

Since the position of the mowing gear case 4 is lower and the mowing device 1 can be constructed lower than in the conventional case, the combine as a whole can be advantageously constructed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. A traveling device 11 having a pair of left and right traveling crawlers 10 for traveling on a soil surface is arranged on the lower side of the traveling frame 5 of the combine, and is sandwiched by a feeding chain 12 on the traveling frame 5. The threshing device 13 for threshing the grain culm supplied and then sorting and collecting the grain thus threshed is installed. In addition, a mowing device 1 that cuts a napped culm on the front side of the threshing device 13 and changes the shavings to a sideways posture while transferring the culm to the rear side and transfers it to the feed chain 12 is soil. It is mounted on the front end of the traveling frame 5 so that it can be raised and lowered with respect to the surface. Further, the operating device 1 for controlling the operation of the combine on one side of the reaping device 1.
4 and an operation seat 15 for this operation are provided, and the mowing device 1, the threshing device 13, the traveling device 11, and the operating device 1 are provided.
A vehicle body 16 of the combine is constituted by 4 and the like.

A mission case 17 for traveling is provided at the front end of the traveling frame 5, and a support bearing stand 18 is fixedly provided at the upper end of the mission case 17, and the support bearing stand 18 is provided. At the position of the upper end of the cutting frame, a rear end of the mowing frame 2 having a pipe-like shape extending obliquely upward, that is, a supporting shaft 3 having the upper end projecting left and right is rotatably supported up and down. A mowing device 1 for mowing a plurality of rows of napped culms with the main frame 2 is configured.

The front portion, that is, the lower end portion of the mowing frame 2 is
The reaping gear case 4 provided over the entire width of the reaping device 1 is joined to a substantially middle position of the reaping gear case 4, and the pipe-shaped left and right intermediate frames are formed from both ends of the reaping gear case 4 toward the front obliquely upward direction.
The frame 19 is extended, and the upper case 20 is joined across the upper ends of the left and right intermediate frames 19 to form a gate shape.

A front frame 9 is extended from the right and left ends of the mowing gear case 4 toward the front, and a grass body 21 for weeding a vertical culm at the front end of the front frame 9. A plurality of hay support pipes 22 fixed to each other are joined at appropriate intervals to a hay connection pipe 23 for connecting and fixing the rear ends thereof, and a napped culm is provided below the hay support pipe 22 near the joining portion. A cutting blade device 8 for cutting off is provided.

From the vicinity of the upper part of the cutting blade device 8 diagonally upward and rearward, the cut grain culms are separated into a plurality of rows, scraped, respectively, and scraped, and then collected at one location and the tip lug 24a and the stock source are conveyed. Upper and lower two-stage scraping and conveying section 24 having chain 24b
In addition to the above, the upper and lower two-stage supply transport unit 25 having a spike tip transport lug 25a for transporting the spike tip side and the stock root side of the grain culm collected by the scraping transport section 24, and The grain chains are placed in the feed chain 12 at a position where they can be delivered.

A plurality of rows of raising means for raising and raising the raising lugs 26, which mainly raise the raised culm culms, from the vicinity of the rear portion of the grass body 21 to the diagonally rearward direction so as to project to the left or right. The devices 27 are arranged laterally, and the auxiliary pulling lugs 28 that are vertically arranged in an L shape with respect to each of the pulling devices 27 and separate the culm of the grain stem from the adjacent cutting strip are raised and projected forward. The auxiliary pulling device 29 to be actuated is arranged in combination in the vicinity of the pulling device 27.

Further, from the input transmission shaft installed in the cutting frame 2 to the lower transmission shaft installed in the cutting gear case 4, the intermediate transmission shaft installed in the intermediate frame 19 from the lower transmission shaft. Further, the intermediate transmission shaft is connected to the upper transmission shaft provided in the upper case 20, respectively, and the cutting blade device 8, the scraping conveying unit 24, the supplying conveying unit 25, The pulling device 27, the auxiliary pulling device 29, etc. are configured to be driven respectively. (The transmission shafts are not shown in the drawings.) A pair of left and right suspension links 6 for suspending and supporting the mowing gear case 4 from the traveling frame 5 are appropriately spaced from each other and suspended on left and right suspension holders 30 at the front end of the traveling frame 5. One end of the rear 6a of the link is rotatably supported by a suspension shaft 31, and the other end and one end of the front 6b of the suspension link are foldably connected by a connecting shaft 32, and the other end is U-shaped. The bracket 7 in the shape of a circle is fixed. The outer peripheral surface 4a of the reaping gear case 4 corresponding to the bracket 7 is formed so as to be freely fitted and supported by the bracket 7 so as to be rotatable, and the reaping gear case 4 is supported by the bracket 7 and escapes to its open side. It is configured by inserting a set pin 33 for prevention.

A reinforcing rod rear portion 34 for connecting and reinforcing approximately the middle position of the left and right suspension link rear portions 6a is fixed, and this reinforcing rod rear portion 3a is fixed.
4 and the front end side of the traveling frame 5, a cutting and raising cylinder 35 that is expanded and contracted by hydraulic pressure for raising and lowering the cutting device 1 around the support shaft 3 with respect to the soil surface is connected and provided. A reinforcing rod front 36 for connecting and reinforcing is fixedly provided at a position adjacent to the bracket 7 of the left and right suspension link fronts 6b.

Auxiliary raising case 37 of the auxiliary raising device 2
As shown in FIG. 5, at the end of the lug guide 38 that raises the auxiliary pull-up lug 28, the lug pull-up rubber 39 that instantly repels the auxiliary pull-up lug 28 that has once fallen again is provided on the upper side of the inside. The guide 38 is configured to be arranged at a constant distance. Next, the operation of the above configuration will be described.

The grass body 21 is brought close to the soil surface, the vehicle body 16 is moved forward by the traveling device 11, and the napped culms are cut by the cutting device 1. This cutting is performed by transmitting power from the input transmission shaft to each part. At the same time, the raised grain culms are divided by the edible body 21, the culled grain culms are raised by the raising device 27 and the auxiliary raising device 29, and the raised culm is cut by the cutting blade device 8 at the same time. The scraping and conveying unit 24 scrapes the grain culm, and the feeding and conveying unit 25 conveys the culm to the feed of the threshing device 13.
It is delivered to the dochen 12 for threshing.

During such a mowing operation, the left and right suspension link rear portions 6a, one end of which is supported by the suspension holder 30 of the traveling frame 5 by the suspension shaft 31, are the mowing lifting cylinders 35.
Is rotated upward through the reinforcing rod rear 34 by the extension action of
By this rotation, the connecting shaft 3 is attached to the other end of the suspension link rear 6a.
Front and rear suspension links 6b, one end of which is connected by 2
Is pushed upward, and by the bracket 7 at the other end of the suspension link front 6b, the cutting gear case 4 having the outer peripheral surface 4a at the left and right positions loosely supported is rotated on the inner surface of the bracket 7, and the cutting frame 2 Rotates upward around the upper support shaft 3 to raise the reaping device 1. When descending, the reverse procedure is applied.

In the lowered position of the cutting device 1, the cut culms are held at their tips by the tip transfer lugs 24a of the scraping transfer section 24, and are held by the stock transfer chains 24b so as to move backward. Be transported. At the time of this backward transportation, the grain culm strain source pinched by the strain source transport chain 24b is the hay support pipe 22 → the hay coupling pipe 23 → the front frame 9
→ The cutting gear case 4 passes through in this order, but at this time, the grass connecting pipe 23, the front frame 9 and the cutting gear case 4 are on substantially the same plane and there is no unevenness, so there is little conveyance resistance at the stock origin and it runs smoothly. The grain culm can be transported.

The cutting gear case 4 and the bracket 7 in front of the suspension link 6b are joined by dropping the outer peripheral surface 4a of the cutting gear case 4 into the U-shaped receiving portion of the bracket 7 and closing the open side with the set pin 33. Because of this simple structure, weeds brought in by the transported grain culm are not caught by the protrusions or narrow gaps and accumulated, and the transportation of the grain culm is not hindered. In particular, by providing the reinforcing rod front 36 adjacent to the lower side of the mowing gear case 4, the rear of the mowing gear case 4 is opened, and complicated weeds as in the conventional case are prevented. It is easy to do and there is no fear of accumulation.

Further, in the auxiliary pulling device 29 for separating the tangle of the grain culms from the adjacent cutting strip, the auxiliary pulling lug 28 which stands up and projects at the lower part of the auxiliary pulling case 37 and falls and retires at the upper part.
However, when the napped grain culm is lodged, it lifts while handling the entangled grain culm, so that stock dropouts and shreds are likely to occur, and these grain culms are transferred to the upper part by the lug 28 and the rug 28
Of the auxiliary pull-up case 37 in the vicinity of the fallen retreat, which accumulates in a bridge state, leading to a problem. Therefore, the lug 28 that has once fallen down and retired at the terminal end of the lug guide 38 is
At the next moment, the lug raising rubber 39 again raises and projects the grain culm bridged in the opening of the auxiliary raising case 37 to prevent the accumulation of the grain culm.

[Brief description of drawings]

FIG. 1 is a side view showing the entire combine.

FIG. 2 is a side view showing the entire reaping device.

FIG. 3 is a plan view showing the entire reaping device.

FIG. 4 is a perspective view showing a suspension relationship of the reaping device.

FIG. 5 is a side sectional view showing a part of an auxiliary raising device of the reaping device.

FIG. 6 is a side view showing an entire conventional reaping device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mowing device 2 Mowing frame 3 Support shaft 4 Mowing gear case 4a Outer peripheral surface 5 Running frame 6 Suspension link 7 Bracket 8 Cutting blade device 9 Front frame

Claims (1)

[Claims] 1. A left and right outer peripheral surface 4a of a mowing gear case 4 that supports an upper end of a mowing frame 2 at the rear of the mowing device 1 so as to be vertically rotatable about a support shaft 3 and that is connected to a lower end of the mowing frame 2, While being rotatably suspended by brackets 7 of suspension links 6 supported on the traveling frame 5,
A harvesting suspension device such as a combine, characterized in that a front frame 9 for attaching the cutting blade device 8 is provided so as to extend forward from the left and right ends of the harvesting gear case 4.