JPH0949A - Feed chain-driving device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feed chain-driving device of a combine harvester, capable of synchronously driving a feed chain with a reaping section, eliminating a rotation support shaft for lifting only the reaping section, and further simplifying a transmission mechanism to the feed chain. SOLUTION: One end of an input shaft 3 for the whole of a reaping section A is transmission-connected to a transmission 2, and the other end is also transmission-connected to a driving wheel 18 at the starting part of a feed chain 4. The input shaft 3 between its transmission connection part to the transmission 2 and its transmission part to the driving shaft 18 is used as a rotation support point for lifting the reaping section A. A bevel gear 16 for transmitting the driving force to the respective operation parts of the reaping section A is disposed at the rotation support point on the input shaft 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine feed chain driving apparatus capable of driving a feed chain of a threshing section in synchronization with a traveling speed of a machine body and a cutting and conveying speed of a cutting section.

[0002]

2. Description of the Related Art Conventionally, for example, the actual exploitation Sho 63-13253.
As disclosed in Japanese Patent No. 0, the rear cutting shaft has a structure in which power is transmitted from the rear input shaft to the entire cutting unit, and the transmission for driving both crawlers and the input shaft of the entire cutting unit are transmission-coupled, and the traveling speed of the machine body. In the combine configured so that the mowing and conveying speed of the mowing unit is synchronized, the feed chain of the threshing unit to which the grain culms are supplied from the mowing unit is structured to be driven by the transmission unit in the threshing unit. Was there.

[0003]

However, since the mowing and conveying speed of the mowing section and the rotation speed of the feed chain are not in synchronism with each other, the transfer performance to the feed chain deteriorates depending on the mowing and conveying speed of the mowing section. If the grain culms are clogged in the inheritance part, and the grain culms are supplied to the threshing part earlier or later, they will be supplied in a small amount, which will increase the consumption power and the threshing accuracy in the threshing part. There was a problem that the sortability deteriorated.

[0004]

The present invention solves such a problem and enables the feed chain of the threshing section to be driven in synchronization with the reaping section. Therefore, both crawlers 1 are driven. Transmission 2 and reaper A
In the combine that is configured such that one end of the entire input shaft 3 is transmission-coupled via a power transmission belt 15 and the traveling speed of the machine body and the cutting and conveying speed of the cutting unit A are synchronized, A drive wheel 18 is provided at the starting end of the feed chain 4 in the threshing section B for supplying grain culms, and the drive wheel 18 and the other end of the input shaft 3 are transmission-coupled via a transmission device 5 and the input shaft 3 between the transmission connecting portion to the transmission 2 and the transmission connecting portion to the drive wheel 18 is used as a rotation fulcrum of the raising and lowering of the mowing unit A, and the rotation fulcrum portion of the input shaft 3 is connected to the rotation fulcrum of the mowing unit A. A bevel gear 16 that transmits power is provided to each operating portion.

[0005]

According to the first aspect of the present invention, the power transmitted from the transmission 2 for driving both crawlers to the input shaft 3 of the entire cutting section A is fed to the feed chain 4 via the drive wheel 18, and further to the bevel gear 16. Therefore, the feed chain 4 can be driven in synchronism with the traveling speed of the machine body and the mowing and conveying speed of the mowing unit A, because each of them can be transmitted to each operating unit of the mowing unit A via. Therefore, the reaper A
The success of the grain culm from the threshing section B to the threshing section B will be smoothly and favorably carried out, and the power consumption will be reduced and the threshing section B will be reduced.
It is possible to further improve the threshing accuracy and the sorting performance in. Further, the input shaft 3 of the entire mowing unit A has one end thereof being transmission-coupled to the transmission 2 and the other end being transmission-coupled to the drive wheel 18 at the starting end of the feed chain, so that the respective transmission coupling units are provided with a mowing unit. Since the rotation fulcrum of the raising and lowering of the section A is provided and a bevel gear 16 is further provided at the rotation fulcrum section of the input shaft 3 so as to be transmitted to each operating section of the mowing section A, the rotation fulcrum of the mowing section A is centered. When moving up and down, the input shaft 3 is held at the rotation fulcrum of the cutting unit A without moving with respect to the transmission 2 and the feed chain 4. Therefore, since the position of the input shaft 3 does not fluctuate as the cutting unit A moves up and down, the cutting unit A can be moved up and down with a simple structure without providing a special mechanism for absorbing the position fluctuation of the input shaft 3. At the same time, the feed chain 4 can be smoothly driven in synchronization with the traveling speed of the machine body and the mowing and conveying speed of the mowing section A.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention shown in FIGS. 1 to 3 will be described.

FIG. 3 shows a side view of the combine, in which a threshing section B equipped with a feed chain 4 and the like is mounted on a machine supported by both crawlers 1, and a raising case is provided in front of the threshing section B. 6, cutting blade 7, scraping wheel, vertical transport chain 8
Is equipped with a mowing unit A equipped with a boarding operation unit C on the lateral side of the mowing unit A, and a Glen tank 9 behind it. A transmission 2 which is installed so that it can be transmitted from the engine 10 to the threshing part B via a pulley belt 11 and can drive the drive wheels 12 of both crawlers 1.
The transmission 2 is connected to the engine 10 via a pulley belt 13 so that one end of an input shaft 3 mounted on a transmission case 14, which serves as a pivotal fulcrum of a vertically movable cutting section A, and the transmission 2 are connected to the pulley belt 15. And the transmission of the bevel gear 16 from the middle of the input shaft 3.
It is configured such that the traveling speed of the machine body and the mowing and conveying speed of the mowing section A are synchronized with each other by being able to be transmitted to each part of the mowing section A by means of the transmission shaft 17 through the. It is configured not to be driven from.

The feed chain 4 is stretched by being driven by a drive sprocket 18 at the lower portion of the starting end side, and the drive sprocket 18 and the input shaft 3 are transmission-coupled via a transmission device 5.

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 traveling speed of the machine body and the mowing and conveying speed of the mowing section.
The inheritance of the culm from the reaping section A to the threshing section B is performed smoothly and smoothly, and the threshing section B satisfactorily threshes.

FIGS. 4 to 7 show other examples of the structure for mounting the mission drive case 22 which can be transmitted from the engine side through the propeller shaft 20 and transmitted from the side output pulley 21 to the HST. It is related.

That is, below the case mounting plate 23 on which the case 22 is placed and fixed, both supporting pieces 2 parallel to each other are provided.
Two sets of support pieces 2
A supporting cylinder 26 equipped with a cylindrical anti-vibration rubber is fixedly provided between the lower portions of 4, 24, and parallel support pieces 29, 29 are provided on the upper surface of a base plate 28 mounted between the chassis 27, 27. Two sets of 29 are erected in the orthogonal direction, and mounting bolts 30 are inserted into both the support pieces and the rubber vibration isolator 25 so as to be floated from the chassis 27, 27 by interposing both the rubber isolator 25, 25. The transmission drive case 22 is attached so that the sound of gears is transmitted to the chassis 27 and vibration and noise are not generated.

[0012]

As described above, according to the present invention, the feed chain 4 can be driven in synchronization with the traveling speed of the machine body and the mowing and conveying speed of the mowing section A. Therefore, the grain culm from the mowing section A to the threshing section B can be removed. The succession can be smoothly and favorably performed, so that the power consumption can be reduced and the threshing accuracy and the sorting performance in the threshing section B can be further improved.

One end of the input shaft 3 of the entire mowing section A is transmission-coupled to the transmission 2, and the other end is transmission-coupled to the drive wheel 18 at the starting end of the feed chain. A is used as a rotation fulcrum for raising and lowering, and a bevel gear 16 is further provided at this rotation fulcrum to transmit to each operating part of the mowing section A. (a) Vertical ascending and descending around the rotation fulcrum of the mowing section A At this time, the input shaft 3 has the transmission 2 and the feed chain 4
However, the position is held at the rotation fulcrum of the mowing unit A without moving. Therefore, since the position of the input shaft 3 does not fluctuate as the cutting unit A moves up and down, the cutting unit A can be moved up and down with a simple structure without providing a special mechanism for absorbing the position fluctuation of the input shaft 3. At the same time, the feed chain 4 can be smoothly driven in synchronization with the traveling speed of the machine body and the mowing and conveying speed of the mowing section A.

(B) The transmission path from the transmission 2 to the feed chain 4 can be shortened. Therefore, the structure can be further simplified in combination with the fact that no special support member supporting the rotation fulcrum side of the raising and lowering of the mowing unit A is required, and the cost can be further reduced.

(C) Transmission 2, a drive source for driving the transmission 2, and a feed chain 4
And can be distributed to both crawlers and can be arranged efficiently. Therefore, it is possible to avoid increasing the size of the combine, and it is easy to maintain the transmission 2, the drive source, the feed chain 4, and the like.

[Brief description of drawings]

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

FIG. 2 is a partial side view of FIG.

FIG. 3 is a side view of the combine.

FIG. 4 is an explanatory diagram showing another example.

5 is a plan view of a portion of FIG.

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]

 1 crawler 2 transmission 3 input shaft 5 transmission device 15 transmission band 18 drive wheel 16 bevel gear A reaping section B threshing section

Claims (1)

[Claims] 1. A transmission (2) for driving both crawlers (1) and one end of an input shaft (3) of the entire reaper (A) are transmission-coupled via a transmission belt (15), and at the same time, In a combine configured such that the traveling speed and the mowing and conveying speed of the mowing section (A) are synchronized, the starting end part of the feed chain (4) in the threshing section (B) that supplies grain culms from the mowing section (A). A drive wheel (18) is provided on the drive shaft, and the drive wheel (18) and the other end of the input shaft (3) are transmission-coupled via a transmission device (5), and a transmission (2) on the input shaft (3) is provided. ) To the drive wheel (18).
A bevel gear (16) that is transmitted to each operating portion of the mowing unit (A) is provided at the rotation fulcrum of the raising and lowering of the mowing unit (A), and the rotation fulcrum of the input shaft (3) is further provided. Feed chain drive.