JP2905969B2 - Combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine which can drive a feed chain in synchronization with a cutting section.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open No. 63-13253
As disclosed in Japanese Patent Publication No. 0, the transmission is transmitted from the rear input shaft to the entire reaping unit. The transmission that drives both crawlers and the input shaft of the entire reaping unit are operatively connected to each other. And the harvesting / conveying speed of the reaping unit, the feed chain of the threshing unit to which the culm is supplied from the reaping unit is structured to be driven from a transmission unit in the threshing unit. I was

[0003]

However, since the cutting and conveying speed of the cutting unit and the rotation speed of the feed chain are not synchronized, the transfer performance to the feed chain deteriorates depending on the cutting and conveying speed of the cutting unit. The culm is clogged at the successor, and the culm is supplied to the threshing part in a small amount faster or slower, so that the power consumption increases, the threshing accuracy in the threshing part, There was a problem that the sortability deteriorated.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and is capable of driving a feed chain of a threshing unit in synchronization with a cutting unit. Therefore, a threshing unit is provided. At the front of the aircraft, there is an input shaft that transmits power to the mowing unit and a drive wheel that is linked to this
A feeder that is suspended between the drive wheel on one side of the body and a first wheel body separated from the drive wheel toward the rear side of the body and conveys the culm cut by the cutting unit to the threshing unit; In a combine including a chain, the drive wheel is disposed at a height position corresponding to the input shaft, is above the drive wheel and the input shaft, and is disposed on the reaper side with respect to the drive wheel. And a third wheel body for moving the feed chain between the second wheel body and the drive wheel toward the first wheel body. I do.

[0005]

According to the first aspect of the present invention, since the drive wheel interlocking with the input shaft for transmitting power to the mowing unit is located at a height corresponding to the input shaft, the driving wheel is connected to the transfer start end of the grain culm transfer unit of the feed chain. The step between the second wheel body and the end of the cereal culm conveying path in the cutting unit can be reduced, and the cereal culm conveyed from the reaping unit is smoothly transferred to the conveying start end of the cereal culm conveying unit of the feed chain and conveyed. In addition, it is possible to rotate the drive wheels without interfering with the drive system of the Karamin device arranged at the lower part on the front side of the threshing unit, or without making the feed chain longer than required. Can be. That is, when the drive wheel interlocking with the input shaft is disposed above the input shaft, the second wheel body disposed above the drive wheel and serving as the transport start end of the grain culm transport portion of the feed chain is provided by the reaper. In this case, the second wheel body and the end of the grain culm transport path are separated from each other upward from the end of the grain culm transport path, and a large step is generated. If it is located at the bottom of the threshing unit, the drive wheels will interfere with the drive system of the Karamin device, and to prevent this interference, the position of the Karamin device must be specially changed. In addition, the distance between the drive wheel and the second wheel body becomes longer than a required length, and the feed chain becomes longer than the required length. However, as described above, the drive wheel is connected to the input shaft. By placing it at the corresponding height, the grain of the feed chain The step between the second wheel body, which is the starting end of the feeding unit, and the end of the culm conveying path in the cutting unit can be reduced, and it can interfere with the drive system of the Karamin machine or make the feed chain the required length. The drive wheels can be rotated without making them longer. In addition, since the drive wheels of the feed chain are linked to the input shaft that transmits power to the reaping unit, the feed chain can be driven in synchronization with the running speed of the machine body and the reaping transport speed of the reaping unit.
Therefore, the transfer of the grain culm from the reaping unit to the threshing unit is performed smoothly and satisfactorily, and the power consumption can be reduced, and the threshing accuracy and the sorting performance in the threshing unit can be further improved. .

[0006]

Next, an embodiment of the present invention shown in FIGS. 1 to 3 will be described.

FIG. 3 is a side view of the combine. A threshing unit B equipped with a feed chain 4 and the like is mounted on a machine body supported by both crawlers 1, and a raising case is provided in front of the threshing unit B. 6, cutting blade 7, scraping wheel, vertical transport chain 8
A mowing unit A equipped with such a component is provided, a boarding operation unit C is provided laterally of the mowing unit A, and a Glen tank 9 is provided behind the mowing unit A, and is provided at a rear portion of the boarding operation unit C. A transmission 2 that can be transmitted from the engine 10 to the threshing unit B via a pulley belt 11 so as to drive the drive wheels 12 of the crawlers 1.
And the engine 10 through a pulley belt 13. One end of an input shaft 3, which is mounted on a transmission case 14 serving as a rotation fulcrum of a vertically movable cutting unit A, and the transmission 2 are connected to a pulley belt 15. And a bevel gear 16 from the middle of the input shaft 3.
The transmission shaft 17 can be transmitted to each part of the cutting unit A via the transmission shaft 17 so that the running speed of the machine body and the cutting and conveying speed of the cutting unit A are synchronized, but the feed chain 4 is located inside the threshing unit B. It is configured not to be driven from.

The feed chain 4 is supported between a drive wheel 18 pivotally supported by a front portion of the body and interlocking with the input shaft 3 and a first wheel body 40 spaced apart from the rear portion of the body. And transports the culm cut by the cutting unit A to the threshing unit B, and is disposed on one side of the machine body. In addition, the feed chain 4 is connected to a drive wheel 18 at the lower portion of the starting end.
The drive wheels 18 and the input shaft 3 are configured so as to be drivingly connected via a transmission device 5. Specifically, as shown in FIG. 2, the drive wheel 18 is disposed at a height position corresponding to the input shaft 3, is above the drive wheel 18 and the input shaft 3, and is A second wheel body 41, which is disposed on the cutting section side and on which the feed chain 4 is hung, and a feed chain 4 between the second wheel body 41 and the drive wheel 18 is moved toward the first wheel body 40. A third wheel body 42 is provided.

Therefore, since the power is transmitted from the input shaft 3 to the feed chain 4, the feed chain 4 is driven in synchronization with the running speed of the machine body and the cutting and conveying speed of the cutting unit.
The transfer of the grain culm from the cutting section A to the threshing section B is performed smoothly without difficulty, and threshing in the threshing section B is favorably performed.

FIGS. 4 to 7 show another example, in which a transmission driving case 22 is mounted on a transmission drive case 22 which can be transmitted from an engine side via a propeller shaft 20 and transmitted from an output pulley 21 on the side to the HST. It is related.

That is, below the case mounting plate 23 on which the case 22 is placed and fixed, the two parallel support pieces 2 are provided.
The two sets are suspended in the direction perpendicular to 4, 24,
A support cylinder 26 equipped with a cylindrical vibration isolating rubber is fixed between the lower portions of the chassis 4, 24, and parallel support pieces 29, Two sets 29 are set up in the orthogonal direction, mounting bolts 30 are inserted into both the support pieces and the vibration isolating rubber 25, and the two vibration isolating rubbers 25, 25 are interposed therebetween so as to float from the chassis 27, 27. The transmission drive case 22 is attached so that the gear sound is transmitted to the chassis 27 and vibration and noise are not generated.

[0012]

As described above, according to the present invention, since the drive wheel which is linked to the input shaft for transmitting power to the mowing unit is at the height position corresponding to the input shaft, the feed start end of the grain culm transfer unit of the feed chain is provided. The step between the second wheel body and the end of the grain conveying path in the cutting section can be reduced, and the grain stem conveyed from the cutting section is smoothly transferred to the conveying start end of the grain stem conveying section of the feed chain and conveyed. In addition, the drive wheels are rotated without interfering with the drive system of the Karamin device arranged at the lower front side of the threshing unit, or without making the feed chain longer than required. be able to.
In addition, since the drive wheels of the feed chain are linked to the input shaft that transmits power to the reaping unit, the feed chain can be driven in synchronization with the running speed of the machine body and the reaping transport speed of the reaping unit. Therefore, the transfer of the grain culm from the cutting unit to the threshing unit is performed smoothly and favorably, and the power consumption can be reduced, and the threshing accuracy and the sorting performance in the threshing unit can be further improved. .

One end of the input shaft 3 of the entire reaping unit A is operatively connected to the transmission 2, and the other end is operatively connected to the drive wheel 18 at the start end of the feed chain. A rotation fulcrum for raising and lowering A, and further, a bevel gear 16 is provided at this rotation fulcrum to transmit power to each operating part of the reaping unit A. (a) Vertical movement about the rotation fulcrum of the reaping unit A When the input shaft 3 is connected to the transmission 2 and the feed chain 4
, And is held at the rotation fulcrum of the reaper A without moving. Therefore, there is no change in the position of the input shaft 3 due to the raising and lowering of the mowing part A, so that the mowing part A can be moved up and down with a simple structure without providing a special mechanism for absorbing the positional change of the input shaft 3. At the same time, the feed chain 4 can be driven smoothly in synchronization with the running speed of the machine body and the cutting and conveying speed of the cutting unit A.

(B) The transmission path from the transmission 2 to the feed chain 4 can be shortened. Therefore, in combination with the fact that a special support member for supporting the rotating fulcrum side of the raising and lowering of the mowing part A is not required, the structure can be further simplified, and the cost can be further reduced.

(C) The transmission 2 and a drive source for driving the transmission 2 and a feed chain 4
Can be efficiently allocated to both crawlers. Therefore, it is possible to avoid an increase in the size of the combine, and it is easy to perform maintenance of the transmission 2, the drive source, the feed chain 4, and the like.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a main part of an embodiment of the present invention.

FIG. 2 is a side view of a part of FIG.

FIG. 3 is a side view of the combine.

FIG. 4 is an explanatory diagram showing another example.

FIG. 5 is a plan view of a part of FIG. 4;

FIG. 6 is a sectional view taken along line VI-VI in FIG. 5;

FIG. 7 is a plan view of an anti-vibration rubber.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Crawler 2 Transmission 3 Input shaft 5 Transmission device 15 Transmission belt 18 Drive wheel 16 Bevel gear A Cutting part B Threshing part

Claims (1)

(57) [Claims] 1. A front part of an airframe provided with a threshing unit,
Reaper and an input shaft and a drive wheel in conjunction with this transmitting power to unit, the driving wheel and 該駆 on one side of the machine body
A combiner comprising a feed chain that is hung between first wheels separated from the rear side of the body with respect to a driving wheel and that conveys the culm cut by the cutting unit to the threshing unit;
The drive wheel is arranged at a height position corresponding to the input shaft, an upper side of the drive wheel and the input shaft, the feed chain is disposed on the reaper side with respect to the driving wheel Kake設And a third wheel body for moving a feed chain between the second wheel body and the drive wheel to the first wheel side.