JP2023034021A - power transmission mechanism of combine harvester - Google Patents

Abstract

To prevent the lowering of harvesting efficiency due to that the function of a part of a device constituting a combine harvester is reduced due to burden increase, and to enable performing efficient harvesting work with respect to a combine harvester that reaps grain culms, stores grains in a grain tank and performs harvesting work.SOLUTION: A combine harvester reaps grain culms in a reaping conveyance part 8, conveys to a thresher 5 so as to thresh, selects grains and stores in a grain tank 6. The combine harvester has a power transmission mechanism of driving a crawler travel device 3 and the reaping conveyance part 8 from an output shaft of an engine E loaded on a travel vehicle body 2, driving devices at least of a threshing cylinder 26 at the thresher 5 side, a swinging and selecting shelf 32, grain lifting devices 28, 30 and a winnower 27 by a drive motor 40 mounted on a machine frame side part of the thresher 5, and storing grains in the grain tank 6.SELECTED DRAWING: Figure 3

Description

本発明は、圃場に植生する稲や麦等の穀稈を刈り取って穀粒を脱穀して収穫するコンバインの動力伝動機構に関する。 TECHNICAL FIELD The present invention relates to a power transmission mechanism for a combine harvester that cuts the stalks of rice, wheat, and the like growing in a field and threshes and harvests the grains.

コンバインは、特開２０１９―９７４１８号公報に記載の如く、走行車体に刈取装置と脱穀装置とグレンタンクを搭載して、走行車体に搭載した単一のエンジンが出力する動力で伝動軸と伝動ベルトを介して走行装置と刈取装置と脱穀装置等の各部を駆動して収穫した穀粒をグレンタンクに貯留している。 As described in Japanese Patent Application Laid-Open No. 2019-97418, the combine is equipped with a reaper, a threshing device, and a grain tank on the traveling vehicle body, and is powered by a single engine mounted on the traveling vehicle body. The grains harvested by driving each part such as the traveling device, the reaping device, and the threshing device are stored in the grain tank.

特開２０１９―９７４１８号公報JP 2019-97418 A

従来のコンバインは、単一のエンジンの出力で走行装置と刈取装置と脱穀装置等の全ての装置を駆動してグレンタンクへ穀粒を搬送して貯留するが、長い伝動軸や長い伝動ベルトで動力を伝動しているために、動力の伝動ロスが生じ易く、例えば脱穀装置の扱胴負荷が増大すると走行装置の走行速度が低下して刈取装置の穀稈刈取量が低下して収穫効率が低下する。 Conventional combine harvesters use a single engine output to drive all devices such as the traveling device, reaping device, and threshing device to transport and store grain in grain tanks. Because power is transmitted, power transmission loss is likely to occur. For example, if the load on the thresher drum increases, the traveling speed of the traveling device will decrease and the amount of culms harvested by the harvesting device will decrease, resulting in reduced harvesting efficiency. descend.

本発明は、穀稈を刈り取って穀粒をグレンタンクに溜めて収穫作業を行うコンバインにおいて、コンバインを構成する装置の一部が負荷増大によって機能が低下して収穫効率が低下することを防ぎ、効率的な収穫作業を行えるようにすることを課題とする。 The present invention is a combine harvester that harvests culms and stores grains in a grain tank to prevent a decrease in harvesting efficiency due to a decrease in the function of a part of the device that constitutes the combine due to an increase in load. An object of the present invention is to enable efficient harvesting work.

上記本発明の課題は、次の技術手段により解決される。 The above problems of the present invention are solved by the following technical means.

請求項１の発明は、刈取搬送部８で穀稈を刈り取って脱穀装置５に搬送して脱穀し穀粒を選別してグレンタンク６に貯留するコンバインにおいて、走行車体２に搭載したエンジンＥの出力軸からクローラ走行装置３と刈取搬送部８を駆動し、脱穀装置５側に装着した駆動モータ４０で、少なくとも脱穀装置５側の扱胴２６や揺動選別棚３２や揚穀装置２８，３０や唐箕２７の各装置を駆動して、穀粒をグレンタンク６に貯留することを特徴とするコンバインの動力伝動機構とする。 The invention of claim 1 is a combine harvester in which culms are harvested by a harvesting and conveying unit 8, transported to a threshing device 5, threshed, grains are sorted and stored in a grain tank 6, and an engine E mounted on a traveling vehicle body 2 is used. The drive motor 40 mounted on the threshing device 5 side drives at least the threshing drum 26, swing sorting rack 32, and grain lifting devices 28, 30 on the threshing device 5 side. The power transmission mechanism of a combine harvester is characterized in that each device of the winch 27 is driven and the grain is stored in the grain tank 6 .

請求項２の発明は、駆動モータ４０を扱胴ギヤケース３５に取り付けて扱胴２６の入力軸を直接駆動し、その後に脱穀装置５の他装置に動力を分配して駆動することを特徴とする請求項１に記載のコンバインの動力伝動機構とする。 The invention of claim 2 is characterized in that the drive motor 40 is attached to the threshing cylinder gear case 35 to directly drive the input shaft of the threshing cylinder 26, and then the power is distributed to the other devices of the threshing device 5 to drive them. It is set as the power transmission mechanism of the combine according to claim 1.

請求項３の発明は、駆動モータ４０の出力で唐箕２７の唐箕駆動軸２７ａを直接駆動し、その後に脱穀装置５の他装置に動力を分配して駆動することを特徴とする請求項１に記載のコンバインの動力伝動機構とする。 The invention of claim 3 is characterized in that the winnow drive shaft 27a of the winnow 27 is directly driven by the output of the drive motor 40, and then the other devices of the threshing device 5 are driven by distributing the power. It is considered as the power transmission mechanism of the combine of description.

請求項４の発明は、駆動モータ４０の出力で揺動選別棚３２の揺動駆動軸３２ａを直接駆動し、その後に脱穀装置５の他装置に動力を分配して駆動することを特徴とする請求項１に記載のコンバインの動力伝動機構とする。 The invention of claim 4 is characterized in that the swing drive shaft 32a of the swing sorting rack 32 is directly driven by the output of the drive motor 40, and then the power is distributed to the other devices of the threshing device 5 to drive them. It is set as the power transmission mechanism of the combine according to claim 1.

請求項５の発明は、駆動モータ４０の出力で揚穀装置２８，３０の揚穀駆動軸２８ａを直接駆動し、その後に脱穀装置５の他装置に分配駆動することを特徴とする請求項１に記載のコンバインの動力伝動機構とする。 According to the invention of claim 5, the output of the drive motor 40 directly drives the grain lifting drive shafts 28a of the grain lifting devices 28 and 30, and then the threshing device 5 is distributed and driven to other devices. It is set as the power transmission mechanism of the combine as described in .

請求項１の発明で、走行車体２に搭載したエンジンＥでクローラ走行装置３と刈取搬送部８を駆動し、脱穀装置５側に装着した駆動モータ４０で扱胴２６や揺動選別棚３２や揚穀装置２８，３０や唐箕２７を駆動しているので、例えば、クローラ走行装置３の走行抵抗が大きくて走行速度が低下することがあっても脱穀装置５側の扱胴２６や揺動選別棚３２や揚穀装置２８，３０や唐箕２７は駆動モータ４０で駆動されるので、脱穀装置５での脱穀や穀粒選別が正常に機能して選別した穀粒をグレンタンク６に溜めるので、コンバインとして良好に機能する。 In the invention of claim 1, the engine E mounted on the traveling vehicle body 2 drives the crawler traveling device 3 and the reaping and conveying unit 8, and the driving motor 40 mounted on the threshing device 5 side drives the threshing drum 26, swing sorting shelf 32, and so on. Since the grain lifting devices 28 and 30 and the winnowing device 27 are driven, for example, even if the traveling speed of the crawler traveling device 3 is large and the traveling speed is reduced, the threshing device 5 side threshing cylinder 26 and the rocking sorting device are driven. Since the shelf 32, the grain lifting devices 28 and 30, and the winnow 27 are driven by the drive motor 40, the threshing and grain sorting in the threshing device 5 function normally, and sorted grains are stored in the grain tank 6. Works well as a combine.

請求項２の発明で、脱穀装置５側で最も負荷の変動が大きい扱胴２６が直接駆動モータ４０で駆動されるので、負荷の変動による脱穀機能の低下が少なく、他の脱穀装置の各機能が良好に働くので、穀粒の収穫効率を低下することが無い。 In the invention of claim 2, since the threshing cylinder 26 having the largest load fluctuation on the side of the threshing device 5 is directly driven by the drive motor 40, the threshing function is less deteriorated due to the load fluctuation, and each function of the other threshing devices works well, it does not reduce the harvesting efficiency of grains.

請求項３の発明で、脱穀装置５の穀粒選別風を発生する唐箕２７が直接駆動モータ４０で駆動されるので、選別風の低下が無く、穀粒の選別が低下することなく、良好な穀粒が収穫できる。 In the invention of claim 3, the winnow 27 that generates the grain sorting wind of the threshing device 5 is directly driven by the drive motor 40, so that the sorting wind does not decrease and the grain sorting performance does not deteriorate, and the grain sorting performance is improved. Grain can be harvested.

請求項４の発明で、脱穀装置５で穀粒を選り分ける揺動選別棚３２が直接駆動モータ４０で駆動されるので、排桿と共に排出される穀粒が少なく、収穫量が低下することが無い。 In the invention of claim 4, since the oscillating sorting rack 32 for sorting out the grains in the threshing device 5 is directly driven by the drive motor 40, less grains are discharged together with the discharge rod, and the yield is reduced. None.

請求項５の発明で、脱穀装置５で脱穀後の穀粒を搬送する揚穀装置２８，３０が直接駆動モータ４０で駆動されるので、脱穀装置５内での穀粒移動が低下することなく、脱穀装置５内で穀粒の滞留が無く、グレンタンク６に溜められ、収穫作業を順調に進められる。 In the invention of claim 5, since the threshing device 5 conveys the grains after threshing, the threshing devices 28 and 30 are directly driven by the drive motor 40, so that the movement of the grains in the threshing device 5 does not decrease. , there is no retention of grains in the threshing device 5, the grains are stored in the grain tank 6, and the harvesting work can proceed smoothly.

本発明の実施形態にかかるコンバインの右側面図である。It is a right view of the combine concerning embodiment of this invention. 同コンバインの平面図である。It is a top view of the same combine. 同コンバインの動力伝動図である。It is a power transmission diagram of the same combine. 駆動モータで揺動選別棚を直接駆動する同コンバインの右側面図である。It is a right side view of the same combine which drives a rocking|swiveling sorting rack directly with a drive motor. 駆動モータで一番揚穀装置を直接駆動する同コンバインの右側面図である。It is a right view of the same combine which directly drives a first grain-hoisting apparatus with a drive motor. 駆動モータでフィードチェンを直接駆動する同コンバインの右側面図である。It is a right view of the same combine which directly drives a feed chain with a drive motor.

以下、本発明の実施形態を図面に示す実施例を参照しながら説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings.

まず、図１及び図２に基づき本発明を備えたコンバインの全体構成について説明する。 First, the overall configuration of a combine having the present invention will be described with reference to FIGS. 1 and 2. FIG.

コンバイン１の走行車体２の下方には、左右一対のクローラ走行装置３，３を配設し、走行車体２上には、右側前部に操縦部４を、操縦部４の後方にグレンタンク６を、左側前部に脱穀装置５を、脱穀装置５及びグレンタンク６の後方に排稾処理装置７をそれぞれ配設している。操縦部４及び脱穀装置５の前方には、植立穀稈を分草引起しながら刈り取り後方の脱穀装置５に向けて搬送する刈取搬送部８を昇降自在に設けている。 A pair of left and right crawler traveling devices 3, 3 are arranged below the traveling vehicle body 2 of the combine harvester 1. On the traveling vehicle body 2, a control unit 4 is provided at the right front portion, and a grain tank 6 is provided behind the control unit 4. , a threshing device 5 is disposed in the left front part, and a husk disposal device 7 is disposed behind the threshing device 5 and the grain tank 6, respectively. In front of the control unit 4 and the threshing device 5, a reaping/conveying unit 8 is vertically provided for conveying planted culms toward the threshing device 5 behind the reaping while raising the planted culms.

次に、図３に基づきコンバインの動力伝動機構について説明する。 Next, the power transmission mechanism of the combine will be described with reference to FIG.

エンジンＥの出力軸１１の左右一側から排出伝動装置１２を経由して穀粒排出装置１３を駆動し、グレンタンク６の穀粒を排出するようにしている。また、左右他側の出力軸１１から走行ベルト伝動装置１４を経て静油圧式の走行無段変速装置１５に動力を伝達し、走行無段変速装置１５を変速レバー１７（図１に示す）で手動変速した走行動力をミッションケース１６内の走行伝動装置を経由して左右クローラ走行装置３，３に伝達している。 A grain discharging device 13 is driven from one of the left and right sides of an output shaft 11 of the engine E via a discharging transmission device 12 to discharge grains from the grain tank 6 . Further, power is transmitted from the output shaft 11 on the other side of the right and left to the hydrostatic continuously variable traveling transmission 15 via the traveling belt transmission device 14, and the traveling continuously variable transmission 15 is operated by the shift lever 17 (shown in FIG. 1). The manually-shifted traveling power is transmitted to the left and right crawler traveling devices 3, 3 via the traveling transmission device in the mission case 16.

また、出力軸１１の左右他側から刈取搬送部８の動力を取り出し、刈取伝動装置１８を経由して刈取搬送部８駆動用の静油圧式の刈取無段変速装置１９へ伝達している。しかして、刈取無段変速装置１９で変速された刈取動力が刈取伝動ケース８ａの刈取出力軸８ｂ、刈取動力伝動装置８ｃを経て刈取搬送部８の刈取入力軸２０へ伝達され、刈取無段変速装置１９で変速された動力により刈取搬送部８の穀稈引起し装置、刈刃装置、穀稈搬送装置等が駆動される。 Further, the power of the reaping and conveying unit 8 is extracted from the other left and right sides of the output shaft 11 and transmitted via the reaping transmission device 18 to the hydrostatic continuously variable reaping transmission 19 for driving the reaping and conveying unit 8 . The reaping power changed by the reaping continuously variable transmission 19 is transmitted through the reaping output shaft 8b of the reaping transmission case 8a and the reaping power transmission device 8c to the reaping input shaft 20 of the reaping transport unit 8, whereupon the reaping continuously variable transmission is performed. The culm lifting device, the cutting blade device, the culm conveying device, etc. of the reaping and conveying unit 8 are driven by the power changed by the device 19 .

脱穀装置５の機枠には駆動モータ４０が取り付けられ、唐箕２７の唐箕駆動軸２７ａが直接駆動され、扱胴ギヤケース３５に扱胴伝動装置３４で伝動され、扱胴２６が駆動され、処理胴伝動装置２２ａで二番処理胴２４と排塵処理胴２５が駆動される。さらに、搬送伝動装置３６で一番揚穀装置２８と唐箕２９と二番揚穀装置３０が駆動され、選別伝動装置３７で排塵ファン３１と揺動選別棚３２と排稾処理装置７が駆動される。さらに、排塵ファン３１の伝動軸からフィードチェン２１に動力を伝達している。 A drive motor 40 is attached to the machine frame of the threshing device 5, and the winnow drive shaft 27a of the winnow 27 is directly driven. The second processing cylinder 24 and the dust disposal cylinder 25 are driven by the transmission device 22a. Further, the conveying transmission device 36 drives the first grain-hoisting device 28, the winnow 29 and the second grain-hoisting device 30, and the sorting transmission device 37 drives the dust exhaust fan 31, the swing sorting rack 32 and the grain disposal device 7. be done. Further, power is transmitted from the transmission shaft of the dust exhaust fan 31 to the feed chain 21 .

なお、駆動モータ４０を扱胴ギヤケース３５に取り付けて扱胴２６をまず駆動し、さらに脱穀装置５の各装置に動力を伝動する構成でも良い。 The drive motor 40 may be attached to the threshing cylinder gear case 35 to first drive the threshing cylinder 26 and then transmit power to each device of the threshing device 5 .

図４は、脱穀装置５の機枠に駆動モータ４０を取り付けて、この駆動モータ４０の出力軸を揺動選別棚３２を駆動する揺動駆動軸３２ａに連結した実施例で、扱胴２６や唐箕２７や一番揚穀装置２８や二番揚穀装置３０や排塵ファン３１や揺動選別棚３２等に伝動するようにしている。 FIG. 4 shows an embodiment in which a drive motor 40 is attached to the machine frame of the threshing device 5, and the output shaft of the drive motor 40 is connected to the swing drive shaft 32a for driving the swing sorting rack 32. The power is transmitted to the winnow 27, the first grain-lifting device 28, the second grain-lifting device 30, the dust exhaust fan 31, the oscillating sorting rack 32, and the like.

図５は、脱穀装置５の機枠に取り付けた駆動モータ４０の主力軸を一番揚穀装置２８を駆動する揚穀駆動軸２８ａに連結した実施例で、扱胴２６や唐箕２７や二番揚穀装置３０や排塵ファン３１や揺動選別棚３２等に伝動するようにしている。 FIG. 5 shows an embodiment in which the main power shaft of the drive motor 40 attached to the machine frame of the threshing device 5 is connected to the grain lifting drive shaft 28a that drives the first grain lifting device 28. The power is transmitted to the grain lifting device 30, the dust exhaust fan 31, the rocking sorting shelf 32, and the like.

図６は、脱穀装置５の機枠に取り付けた駆動モータ４０の主力軸をフィードチェン２１を駆動するフィードチェン駆動軸２１ａに連結した実施例で、扱胴２６や唐箕２７や一番揚穀装置２８や二番揚穀装置３０や排塵ファン３１や揺動選別棚３２等に伝動するようにしている。 FIG. 6 shows an embodiment in which the main power shaft of the drive motor 40 attached to the machine frame of the threshing device 5 is connected to the feed chain drive shaft 21a for driving the feed chain 21. 28, the second grain lifting device 30, the dust exhaust fan 31, the swing sorting shelf 32, and the like.

以上の実施例の他に、駆動モータ４０で直接駆動する軸として、排稾搬送装置２３や排稾処理装置７の駆動軸に取り付ける構成でも、エンジンＥの負荷を軽減して収穫効率の良いコンバインとすることが出来る。 In addition to the above-described embodiments, the shaft directly driven by the drive motor 40 may be attached to the drive shaft of the rice waste conveying device 23 or the waste rice processing device 7 to reduce the load on the engine E and improve the harvesting efficiency of the combine. It is possible to

Ｅ エンジン
２ 走行車体
３ クローラ走行装置
５ 脱穀装置
６ グレンタンク
８ 刈取搬送部
２６ 扱胴
２８ 一番揚穀装置
３０ 二番揚穀装置
３２ 揺動選別棚
４０ 駆動モータ E engine 2 traveling vehicle body 3 crawler traveling device 5 threshing device 6 grain tank 8 reaping and conveying unit 26 handling drum 28 first grain lifting device 30 second grain lifting device 32 rocking sorting shelf 40 drive motor

Claims (5)

刈取搬送部（８）で穀稈を刈り取って脱穀装置（５）に搬送して脱穀し、穀粒を選別してグレンタンク（６）に貯留するコンバインにおいて、走行車体（２）に搭載したエンジン（Ｅ）の出力軸からクローラ走行装置（３）と刈取搬送部（８）を駆動し、脱穀装置（５）の機枠側部に装着した駆動モータ（４０）で、少なくとも、脱穀装置（５）側の扱胴（２６）や揺動選別棚（３２）や揚穀装置（２８，３０）や唐箕（２７）の各装置を駆動して穀粒をグレンタンク（６）に貯留することを特徴とするコンバインの動力伝動機構。 An engine mounted on a traveling vehicle body (2) in a combine harvester in which culms are harvested by a harvesting and transporting unit (8), transported to a threshing device (5) for threshing, grains are sorted and stored in a grain tank (6). The output shaft (E) drives the crawler traveling device (3) and the reaping and conveying unit (8), and the drive motor (40) mounted on the side of the machine frame of the threshing device (5) drives at least the threshing device (5 ) side handling drum (26), rocking sorting rack (32), grain lifting devices (28, 30) and winnowing (27) are driven to store grain in the grain tank (6). A power transmission mechanism of a combine harvester characterized by: 駆動モータ（４０）を扱胴ギヤケース（３５）に取り付けて扱胴（２６）の入力軸を直接駆動し、その後に脱穀装置（５）の他装置に動力を分配して駆動することを特徴とする請求項１に記載のコンバインの動力伝動機構。 A driving motor (40) is attached to a threshing cylinder gear case (35) to directly drive the input shaft of the threshing cylinder (26), and then the power is distributed to drive other devices of the threshing device (5). The power transmission mechanism for a combine according to claim 1. 駆動モータ（４０）の出力で唐箕（２７）の唐箕駆動軸（２７ａ）を直接駆動し、その後に脱穀装置（５）の他装置に動力を分配して駆動することを特徴とする請求項１に記載のコンバインの動力伝動機構。 Claim 1 characterized in that the winnow drive shaft (27a) of the winnow (27) is directly driven by the output of the drive motor (40), and then the power is distributed to the other devices of the threshing device (5). The power transmission mechanism of the combine according to . 駆動モータ（４０）の出力で揺動選別棚（３２）の揺動駆動軸（３２ａ）を直接駆動し、その後に脱穀装置（５）の他装置に動力を分配して駆動することを特徴とする請求項１に記載のコンバインの動力伝動機構。 The swing drive shaft (32a) of the swing sorting rack (32) is directly driven by the output of the drive motor (40), and then the power is distributed and driven to other devices of the threshing device (5). The power transmission mechanism for a combine according to claim 1. 駆動モータ（４０）の出力で揚穀装置（２８，３０）の揚穀駆動軸（２８ａ）を直接駆動し、その後に脱穀装置（５）の他装置に分配駆動することを特徴とする請求項１に記載のコンバインの動力伝動機構。 The output of the drive motor (40) directly drives the grain lifting drive shaft (28a) of the grain lifting device (28, 30), and then distributes the drive shaft (28a) to the other devices of the threshing device (5). 2. The power transmission mechanism of the combine according to 1.

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