JP2005137279A - Structure for conveying reaped grain culm for combine harvester - Google Patents

Structure for conveying reaped grain culm for combine harvester Download PDF

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JP2005137279A
JP2005137279A JP2003377616A JP2003377616A JP2005137279A JP 2005137279 A JP2005137279 A JP 2005137279A JP 2003377616 A JP2003377616 A JP 2003377616A JP 2003377616 A JP2003377616 A JP 2003377616A JP 2005137279 A JP2005137279 A JP 2005137279A
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conveyance
conveying
transport
posture
harvested
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Kazuhiko Nishida
和彦 西田
Tomoya Matsubayashi
松林  智也
Hisashi Doi
久 土井
Makoto Oshitani
誠 押谷
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Kubota Corp
株式会社クボタ
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<P>PROBLEM TO BE SOLVED: To prevent grain culm clogging, or the like, attributable to that reaped grain culms conveyed by a grain culm conveying apparatus remain at a position just before a threshing apparatus in an extremely ear tip-delayed posture due to floating straw, or the like, in a combine harvester. <P>SOLUTION: The combine harvester includes a grain culm conveying apparatus 12 comprising a nipping and conveying mechanism 38 for nipping and conveying the foot side of reaped grain culms and a fastening and conveying mechanism 39 for fastening and conveying the ear tip side of the reaped grain culms and functioning to convey the reaped grain culms while changing their posture from raised posture to fallen posture, a threshing apparatus 4 equipped with a longitudinally turning type feed chain 25 functioning to nip and convey the foot side of the reaped grain culms changed to the fallen posture and a receiving port 24 via which the ear tip side of the reaped grain culms is changed to the fallen posture. In this combine harvester, the conveyance terminal end side of the fastening and conveying mechanism 39 represents a two-tier conveying structure comprising a lower side fastening conveyor belt 77 functioning to fasten and convey the foot-sided portion of the reaped grain culms at their ear tip side and an upper side fastening conveyor belt 79 functioning to fasten and convey the ear tip-sided portion of the reaped grain culms at their ear tip side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、刈取穀稈の株元側を挟持搬送する挟持搬送機構と、刈取穀稈の穂先側を係止搬送する係止搬送機構とを備えて、刈取穀稈を起立姿勢から横倒れ姿勢に向けて姿勢変更しながら搬送する穀稈搬送装置を構成し、横倒れ姿勢に姿勢変更された刈取穀稈の株元側を挟持搬送する縦回し式のフィードチェーンと、横倒れ姿勢に姿勢変更された刈取穀稈の穂先側を受け入れる受入口とを備える脱穀装置を搭載してあるコンバインの刈取穀稈搬送構造に関する。   The present invention comprises a holding and conveying mechanism for holding and conveying the stock side of the harvested cereal rice cake, and a locking and conveying mechanism for engaging and conveying the tip side of the harvested rice cake cereal, and the harvested rice cake is tilted from the standing posture. The cereals conveying device that conveys while changing the posture toward the side, and the vertical-type feed chain that pinches and conveys the stock side of the harvested cereal that has been changed to the sideways posture, and the posture changed to the sideways posture The present invention relates to a harvested corn straw transport structure for a combine equipped with a threshing device including a receiving port for receiving the tip side of the harvested grain cereal.
従来、上記のようなコンバインの刈取穀稈搬送構造において、穀稈搬送装置の係止搬送機構は、左右の係止搬送帯によって刈取穀稈の穂先側を左右中央に寄せ集めながら脱穀装置に向けて搬送し、脱穀装置の受入口の近くまで延設した一方の係止搬送帯によって、刈取穀稈の穂先側を受入口の近くまで搬送する1段搬送構造に構成されていた(例えば特許文献1参照)。
特開2000−279020号公報(段落番号0016、図1、図2、図9)
Conventionally, in the harvested corn straw transporting structure of the combine as described above, the locking and conveying mechanism of the corn straw conveying device is directed toward the threshing device while gathering the tip side of the harvested corn straw to the left and right centers by the left and right locking conveying bands. It is configured in a one-stage transport structure that transports the tip side of the harvested cereal culm to the vicinity of the reception port by one locking transport band that extends to the vicinity of the reception port of the threshing device (for example, patent document) 1).
JP 2000-279020 A (paragraph number 0016, FIG. 1, FIG. 2, FIG. 9)
上記の構成では、穀稈搬送装置で搬送される刈取穀稈は、その株元側が、挟持搬送機構で挟持された安定性が高く搬送作用を受け易い状態で搬送されるのに対し、その穂先側が、係止搬送機構の係止搬送帯によって1点支持された安定性の低い搬送作用を受け難い状態で係止搬送されることから、刈取穀稈の搬送姿勢が横倒れ姿勢に近くなる穀稈搬送装置における搬送終端側の穀稈搬送経路において、刈取穀稈に巻き付いていた穂のない枝穀稈や搬送中に発生する切れワラなどが堆積して刈取穀稈の搬送を妨げる所謂浮きワラなどが発生すると、その浮きワラなどの影響を受けて、株元側に対して穂先側の搬送が遅れる穂先遅れ姿勢になることがある。   In the above configuration, the harvested cereals conveyed by the cereal conveying device are conveyed in a state in which the stock side is highly stable and easily subjected to the conveying action that is pinched by the holding and conveying mechanism. Since the side is latched and transported in a state where it is difficult to receive a low-stability transporting action that is supported at one point by the latching and transporting belt of the latching and transporting mechanism, A so-called floating straw that hinders the transportation of the harvested cereal cocoon by accumulation of branchless stalks that have been wrapped around the harvested cereal cocoon or cut straw that occurs during the transportation in the cereal conveyance route on the conveyance termination side in the cocoon transportation device If this occurs, the tip may be delayed due to the effect of the floating straw and the like, and the tip side transport is delayed with respect to the stock side.
そして、その浮きワラなどの影響で刈取穀稈の穂先側が停滞すると、穀稈搬送装置で搬送される刈取穀稈は、その搬送姿勢が極端な穂先遅れ姿勢となり、この極端な穂先遅れ姿勢になった場合には、その株元側が、穀稈搬送装置の挟持搬送機構に対して搬送方向下手側に配備されるフィードチェーンの搬送始端部に届かない状態となって、フィードチェーンで搬送されずに脱穀装置の直前箇所で残留し、穀稈詰まりなどの原因となることがある。   When the tip side of the harvested cereal stagnate due to the floating straw or the like, the harvested cereal cocoon transported by the cereal transporting device has an extreme tip delayed posture, and this extreme tip delayed posture. In such a case, the stock source side does not reach the conveyance start end portion of the feed chain arranged on the lower side in the conveyance direction with respect to the holding conveyance mechanism of the cereal conveyance device, and is not conveyed by the feed chain. It may remain in front of the threshing device and cause clogging.
本発明の目的は、浮きワラなどに起因して、穀稈搬送装置で搬送される刈取穀稈の搬送姿勢が極端な穂先遅れ姿勢になることを防止して、刈取穀稈が、極端な穂先遅れ姿勢になることで、フィードチェーンに受け渡されなくなって脱穀装置の直前箇所で残留することによる穀稈詰まりなどの発生を回避することにある。   The object of the present invention is to prevent the harvest posture of the harvested cereal that is conveyed by the cereal carrier device from being caused by floating straws, etc. By being in a delayed posture, it is to avoid the occurrence of clogging of cereals and the like caused by being left in front of the threshing device without being delivered to the feed chain.
上記の課題を解決するための手段として、本発明では、刈取穀稈の株元側を挟持搬送する挟持搬送機構と、刈取穀稈の穂先側を係止搬送する係止搬送機構とを備えて、刈取穀稈を起立姿勢から横倒れ姿勢に向けて姿勢変更しながら搬送する穀稈搬送装置を構成し、横倒れ姿勢に姿勢変更された刈取穀稈の株元側を挟持搬送する縦回し式のフィードチェーンと、横倒れ姿勢に姿勢変更された刈取穀稈の穂先側を受け入れる受入口とを備える脱穀装置を搭載してあるコンバインの刈取穀稈搬送構造において、前記係止搬送機構の搬送終端側を、刈取穀稈の穂先側における株元寄り部分を係止搬送する下側係止搬送帯と、刈取穀稈の穂先側における穂先寄り部分を係止搬送する上側係止搬送帯とを備える2段搬送構造に構成してある。   As means for solving the above-mentioned problems, the present invention comprises a holding and conveying mechanism for holding and conveying the stock base side of the harvested cereal rice bran, and an engaging and conveying mechanism for engaging and conveying the tip side of the harvested cereal rice cake. , Constituting a cereal conveying device that conveys the harvested cereal rice cake while changing its posture from the standing posture to the lying-down posture, and holding the conveying side of the harvested cereal rice cake whose posture has been changed to the lying-down posture In the harvested grain culm transport structure for a combine harvester equipped with a threshing device that includes a feed chain and a receiving port for receiving the tip of the harvested grain culm that has been changed to a sideways posture, the transport termination of the locking transport mechanism A lower locking conveyance band for locking and conveying the portion near the stock base on the tip side of the harvested cereal basket, and an upper locking conveyance band for latching and conveying the portion near the tip side of the cutting grain side of the harvested cereal meal A two-stage transport structure is used.
この構成によると、刈取穀稈の搬送姿勢が横倒れ姿勢に近くなる穀稈搬送装置の搬送終端側では、刈取穀稈の穂先側は、下側係止搬送帯と上側係止搬送帯とで2点支持された安定性の高い搬送作用を受け易い状態で係止搬送されることから、刈取穀稈の搬送姿勢が横倒れ姿勢に近くなる穀稈搬送装置における搬送終端側の穀稈搬送経路において、刈取穀稈の搬送を妨げる浮きワラなどが発生しても、その浮きワラなどの影響を受け難くなり、又、その浮きワラなどの状態によっては、その浮きワラなどが刈取穀稈の穂先側とともに搬送されるようになる。   According to this configuration, on the transfer terminal side of the cereal conveying device in which the conveying posture of the chopped cereal is close to the sideways posture, the tip side of the chopped cereal straw is divided between the lower locking conveying band and the upper locking conveying band. The culm transport path on the transport end side in the culm transporting device in which the transport posture of the harvested cereal masher is close to the sideways posture because it is locked and transported in a state where it is easily supported by a two-point supported and stable transport action. In this case, even if floating straws that hinder the transportation of harvested cereals occur, they are not easily affected by the floating straws, and depending on the state of the floating straws, the floating straws etc. It will be conveyed with the side.
これによって、その浮きワラなどに起因して、穀稈搬送装置で搬送される刈取穀稈の搬送姿勢が、挟持搬送機構で挟持搬送されることで本来より浮きワラなどの影響を受け難い刈取穀稈の株元側に対して、係止搬送機構で係止搬送される刈取穀稈の穂先側が遅れて搬送される穂先遅れ姿勢になることを抑制でき、刈取穀稈の穂先側が停滞することなどによって極端な穂先遅れ姿勢になることを防止できる。   As a result, due to the floating straw, etc., the harvested cereals that are conveyed by the cereal conveying device are less susceptible to floating straws and the like by being held and conveyed by the nip conveying mechanism. The tip side of the harvested cereal rice bran that is locked and transported by the locking transport mechanism can be prevented from being delayed with respect to the stock side of the cocoon, and the tip side of the harvested cereal rice cake stagnate, etc. Can prevent an extreme point delay posture.
その結果、穀稈搬送装置で搬送される刈取穀稈の搬送姿勢が極端な穂先遅れ姿勢になることに起因して、その刈取穀稈の株元側が、穀稈搬送装置の挟持搬送機構に対して搬送方向下手側に配備されるフィードチェーンの搬送始端部に届かない状態となって、そのフィードチェーンで搬送されずに脱穀装置の直前箇所で残留し、穀稈詰まりなどの原因になることを回避できる。   As a result, due to the transport posture of the harvested cereals that are conveyed by the cereal conveying device becoming an extreme tip delay posture, It will not reach the conveyance start end of the feed chain deployed on the lower side in the conveyance direction and will not be conveyed by the feed chain and will remain at the location immediately before the threshing device, causing clogging of the cereal etc. Can be avoided.
つまり、穀稈搬送装置における搬送終端側の穀稈搬送経路において浮きワラなどが発生しても、穀稈搬送装置によって、刈取穀稈を、その株元側のフィードチェーンへの受け渡しを良好に行える姿勢で搬送することができ、もって、浮きワラなどに起因して発生する脱穀装置直前箇所での穀稈詰まりなどを防止できる作業性に優れたものにできる。   In other words, even if floating straw or the like occurs in the cereal conveyance path on the conveyance end side in the cereal conveyance device, the cereal conveyance device can successfully deliver the harvested cereal to the feed chain on the stock source side. It can be transported in a posture, and therefore, it can be made excellent in workability capable of preventing clogging of cereals at a location immediately before the threshing device caused by floating straw and the like.
本発明をより好適なものにするための手段の一つとして、刈取穀稈の株元側を前記挟持搬送機構から前記フィードチェーンに受け渡す縦回し式の補助搬送装置を装備してある。   As one of the means for making the present invention more suitable, it is equipped with a vertical rotation type auxiliary conveyance device that transfers the stock side of the harvested cereal meal from the clamping conveyance mechanism to the feed chain.
コンバインでは、車速に比例して収穫する単位時間当たりの作物量が変化する。又、穀稈搬送装置は、刈取穀稈を適当な層厚で一連搬送することが望ましく、搬送する穀稈量が低下して搬送中の刈取穀稈の層厚が薄くなり過ぎると、その挟持搬送機構による刈取穀稈の保持力が弱くなり過ぎて刈取穀稈の搬送姿勢が乱れ易くなることから、その搬送姿勢の乱れに起因した搬送不良などを招き易くなる。逆に、搬送する穀稈量が増加して刈取穀稈の層厚が厚くなり過ぎると、その挟持搬送機構による刈取穀稈の保持力が強くなり過ぎて刈取穀稈が搬送され難く詰まり易くなることから、その詰まりに起因した搬送不良などを招き易くなる。   In the combine, the amount of crops harvested per unit time changes in proportion to the vehicle speed. In addition, it is desirable that the grain feeder conveys a series of harvested grains with an appropriate layer thickness. If the amount of grains to be carried decreases and the thickness of the harvested grains becomes too thin, the sandwiched Since the holding power of the harvested cereal mash by the transport mechanism becomes too weak and the transport posture of the chopped cereal cocoon is likely to be disturbed, it is likely to cause a transport failure due to the disorder of the transport posture. Conversely, if the amount of cereals to be conveyed increases and the layer thickness of the harvested cereals becomes too thick, the holding power of the harvested cereals by the holding and conveying mechanism becomes too strong, and the harvested cereals are difficult to be conveyed and easily clogged. For this reason, it becomes easy to cause a conveyance failure or the like due to the clogging.
そこで、穀稈搬送装置の駆動速度を、車速の変速に同調又は略同調して変速することで、車速の変化にかかわらず、穀稈搬送装置が刈取穀稈を適当な層厚で一連搬送するように構成して、穀稈搬送装置での刈取穀稈の搬送性能を向上させることが考えられている。   Therefore, by changing the driving speed of the grain feeder in synchronization with or substantially in synchronism with the speed change of the vehicle speed, the grain feeder conveys a series of harvested grains with an appropriate layer thickness regardless of changes in the vehicle speed. It is considered to improve the conveyance performance of the harvested cereals by the culm conveying device.
これに対し、脱穀装置では、その脱穀性能を確保するために、刈取穀稈の株元側を挟持して搬送するフィードチェーンや、刈取穀稈の穂先側に対して扱き作用を施す扱胴などを、車速の変化にかかわらず、脱穀処理を行うのに適した所定速度で定速駆動することが考えられており、そのため、車速によっては、刈取穀稈を搬送する穀稈搬送装置とフィードチェーンとの間で大きな速度差が生じるようになる。又、穀稈搬送装置が、刈取穀稈を起立姿勢から横倒れ姿勢に向けて姿勢変更しながら搬送するように構成されているのに対し、フィードチェーンは、刈取穀稈を脱穀処理に適した横倒れ姿勢で搬送する縦回し式に構成されている。   On the other hand, in the threshing device, in order to ensure the threshing performance, a feed chain that sandwiches and conveys the stock side of the harvested cereal mill, a handling cylinder that performs a handling action on the tip side of the harvested cereal mill, etc. Is considered to be driven at a constant speed suitable for threshing regardless of the change in vehicle speed. Therefore, depending on the vehicle speed, the grain feeder and feed chain that conveys the harvested grain. A large speed difference occurs between the two. In addition, while the grain feeder is configured to convey the harvested grain while changing the posture from the standing posture to the sideways posture, the feed chain is suitable for the threshing process. It is configured as a vertical rotation type that conveys in a sideways posture.
これらの点から、穀稈搬送装置からフィードチェーンへの刈取穀稈の受け渡しを直接行うように構成すると、その受け渡し箇所において、刈取穀稈の姿勢変更と搬送速度の大幅な変更とが同時に行われることがあり、そのため、その受け渡し箇所においては、刈取穀稈の搬送姿勢が乱れ易くなり、その搬送姿勢の乱れに起因した搬送不良や脱落を招き易くなる。   From these points, when it is configured to directly deliver the harvested cereal to the feed chain from the cereal conveyor, the posture change of the harvested culm and the significant change in the conveyance speed are performed at the same time. Therefore, at the delivery location, the conveying posture of the harvested cereal is likely to be disturbed, and it is likely to cause a conveyance failure or dropout due to the disordered conveying posture.
そこで、本願発明では、穀稈搬送装置の挟持搬送機構からフィードチェーンへの刈取穀稈の株元側の受け渡しを中継する縦回し式の補助搬送装置を装備しているのであり、これによって、例えば、補助搬送装置の変速を穀稈搬送装置の変速とともに車速の変速に同調又は略同調して行う、あるいは、補助搬送装置の駆動速度を穀稈搬送装置の駆動速度とフィードチェーンの駆動速度との間の速度に設定する、などの速度調節を行うように構成すれば、穀稈搬送装置による搬送で起立姿勢から横倒れ姿勢近くまで姿勢変更された刈取穀稈の株元側を、その穀稈搬送装置の駆動速度と同調又は略同調して変速されることで穀稈搬送装置との速度差が比較的小さい状態で一定又は略一定に維持される、あるいは、駆動速度が穀稈搬送装置とフィードチェーンとの間の速度に設定されることで穀稈搬送装置との速度差が比較的小さい状態となる補助搬送装置が受け取るとともに、刈取穀桿の搬送姿勢が横倒れに近い姿勢から横倒れ姿勢に姿勢変更され、その補助搬送装置が、穀稈搬送装置よりも速度差が大きくなることがあるものの、刈取穀稈の搬送姿勢が同じ安定した横倒れ姿勢に設定されたフィードチェーンに受け渡すようになる。   Therefore, in the present invention, it is equipped with a vertical rotation type auxiliary conveyance device that relays the delivery of the harvested cereal culm from the pinch conveyance mechanism of the cereal conveyance device to the feed chain. The auxiliary transport device is shifted in synchronism with or substantially synchronized with the speed change of the vehicle speed along with the shift of the grain transport device, or the drive speed of the auxiliary transport device is determined by the drive speed of the grain transport device and the drive speed of the feed chain. If it is configured to perform speed adjustment such as setting the speed between, the grain side of the harvested cereal rice cake whose posture has been changed from the standing posture to the near-falling posture by conveyance by the cereal conveyance device, By shifting in synchronization with or substantially in synchronization with the driving speed of the conveying device, the speed difference from the cereal conveying device is maintained constant or substantially constant in a relatively small state, or the driving speed is the same as that of the cereal conveying device. feed Auxiliary transfer device that receives a relatively small speed difference from the cereal conveying device by being set to the speed with the chain, and the posture of the harvested cereals to be laid down from a posture close to falling The auxiliary transfer device may be transferred to a feed chain in which the conveying posture of the harvested culm is set to the same stable sideways posture, although the speed difference may be larger than that of the cereal conveying device. become.
つまり、刈取穀稈の受け渡し箇所において、刈取穀稈の姿勢変更と搬送速度の大幅な変更とが同時に行われることを回避して、刈取穀稈の受け渡し時における搬送姿勢の乱れを抑制するようにしているのであり、その結果、その搬送姿勢の乱れに起因した刈取穀稈の搬送不良や脱落を招き難くなる。   In other words, at the delivery point of the harvested cereal meal, avoiding simultaneous changes in the posture of the harvested grain meal and a significant change in the conveyance speed, and suppressing the disturbance of the transport posture during delivery of the harvested grain meal. As a result, it becomes difficult to cause poor conveyance and dropout of the harvested cereal meal due to the disorder of the conveyance posture.
ところで、このように補助搬送装置を装備する場合には、穀稈搬送装置の挟持搬送機構からフィードチェーンへの刈取穀稈の受け渡し距離が大きくなる。そのため、穀稈搬送装置における搬送終端側の穀稈搬送経路において、刈取穀稈の搬送を妨げる浮きワラなどが発生し、その浮きワラなどの影響を受けて刈取穀稈の搬送姿勢が、極端ではないものの比較的大きい穂先遅れ姿勢になった場合にも、その株元側が、フィードチェーンの搬送始端部に届かない状態になることがある。   By the way, when equipped with an auxiliary conveyance device in this way, the delivery distance of the harvested cereal to the feed chain from the pinch conveyance mechanism of the cereal conveyance device increases. For this reason, floating straws or the like that hinder the transportation of the harvested cereals occur in the cereal transportation route on the conveyance terminal side in the cereal transportation device, and the transportation posture of the harvested cereals under the influence of the floating straws is extreme. Even if there is not a relatively large tip delay posture, the stockholder side may not reach the feed chain conveyance start end.
しかしながら、本願発明では、前述したように係止搬送機構の搬送終端側を2段搬送構造に構成して、刈取穀稈の搬送姿勢が浮きワラなどに起因して穂先遅れ姿勢になることを抑制することから、穀稈搬送装置の挟持搬送機構からフィードチェーンへの刈取穀稈の受け渡しを補助搬送機構を介して行うようにしても、フィードチェーンへの刈取穀稈の受け渡しを確実に行えるようになり、フィードチェーンによる刈取穀稈の搬送を良好に行える。   However, in the present invention, as described above, the conveyance terminal end side of the locking conveyance mechanism is configured in a two-stage conveyance structure, and the conveyance posture of the harvested cereal culm is prevented from becoming a tip delayed posture due to a floating straw or the like. Therefore, even if delivery of the harvested cereals from the pinch transport mechanism of the grain feeder to the feed chain is performed via the auxiliary transport mechanism, the delivery of the harvested cereals to the feed chain can be performed reliably. Therefore, the harvested cereal meal can be conveyed with the feed chain.
従って、補助搬送装置を装備することで、刈取穀稈を受け渡す際の搬送姿勢の乱れに起因した刈取穀稈の搬送不良や脱落を回避しながら、補助搬送装置を装備することで招き易くなる、浮きワラなどに起因した脱穀装置の直前箇所での穀稈詰まりなどを防止できる。   Therefore, by equipping the auxiliary conveying device, it becomes easy to invite by equipping the auxiliary conveying device while avoiding poor conveyance and falling off of the harvested cereal cocoon due to the disorder of the conveying posture when delivering the chopped cereal. In addition, it is possible to prevent clogging of cereals at the position immediately before the threshing device due to floating straws and the like.
本発明をより好適なものにするための手段の一つとして、前記下側係止搬送帯と前記上側係止搬送帯とを等速駆動してある。   As one of the means for making the present invention more suitable, the lower latching conveyance band and the upper latching conveyance band are driven at a constant speed.
この構成によると、係止搬送機構による刈取穀稈の穂先側係止搬送を、下側係止搬送帯と上側係止搬送帯との間に速度差を設けて行う場合に比較して、係止搬送機構による刈取穀稈の支持状態を、刈取穀稈に対する下側係止搬送帯及び上側係止搬送帯の支持位置に変化が生じ難い、より安定性の高い2点支持状態にできる。   According to this configuration, the hook-side locking conveyance of the harvested cereal rice bran by the locking conveyance mechanism is performed in comparison with the case where a speed difference is provided between the lower locking conveyance band and the upper locking conveyance band. The support state of the harvested cereal rice bran by the stop conveyance mechanism can be changed to the support position of the lower latching conveyance belt and the upper latching conveyance belt with respect to the harvested wheat straw and can be made a more stable two-point support state.
従って、穀稈搬送装置における搬送終端側の穀稈搬送経路において、刈取穀稈の搬送を妨げる浮きワラなどが発生しても、その浮きワラなどの影響をより受け難くすることができ、又、その浮きワラなどを刈取穀稈の穂先側とともに搬送し易くなり、結果、浮きワラなどに起因した脱穀装置の直前箇所での穀稈詰まりなどをより効果的に防止できる。   Therefore, even if a floating straw or the like that hinders the transportation of the harvested grain straw is generated in the grain trailing path on the transportation terminal side in the grain straw transporting device, it can be made less susceptible to the influence of the floating straw, The floating straw and the like can be easily conveyed together with the tip side of the harvested grain straw, and as a result, clogging of the grain straw immediately before the threshing device due to the floating straw or the like can be more effectively prevented.
図1にはコンバインの全体側面が、図2及び図3にはコンバインの全体平面が示されており、このコンバインは、機体フレーム1に左右一対のクローラ式走行装置2を装備し、機体フレーム1の前部に、植立穀稈を刈り取って後方に向けて搬送する刈取搬送部3を昇降揺動可能かつ左右揺動可能に連結し、機体フレーム1における刈取搬送部3の後方箇所に、刈取搬送部3からの刈取穀稈を受け取って脱穀・選別処理を施す脱穀装置4を搭載し、機体フレーム1における脱穀装置4の右側方箇所に、脱穀装置4からの穀粒を貯留する穀粒タンク5を配備し、機体フレーム1における刈取搬送部3の右側方箇所に搭乗運転部6を形成して構成されている。   FIG. 1 shows the entire side surface of the combine, and FIGS. 2 and 3 show the entire plane of the combine. The combine is equipped with a pair of left and right crawler type traveling devices 2 on the body frame 1, and the body frame 1 Is connected to a front part of the cutting and conveying unit 3 for cutting and conveying the planted cereal toward the rear so that it can swing up and down and swing left and right. A grain tank that receives the harvested cereal from the transport unit 3 and performs threshing / sorting processing, and stores the grain from the threshing device 4 at the right side of the threshing device 4 in the machine frame 1. 5 is provided, and a boarding operation unit 6 is formed at a right side position of the cutting and conveying unit 3 in the machine body frame 1.
図1〜5に示すように、刈取搬送部3は、機体の走行に伴って植立穀稈を分草する複数の分草具7、分草後の植立穀稈を引き起こす複数の引起装置8、引き起こされた植立穀稈の株元側を切断するバリカン形の刈取装置9、刈取穀稈の株元側を後方に向けて掻き込み搬送する複数のパッカー10、刈取穀稈の穂先側を後方に向けて掻き込み搬送する複数の掻込ベルト11、及び、掻き込み搬送された刈取穀稈を起立姿勢から横倒れ姿勢に向けて姿勢変更しながら後方の脱穀装置4に向けて搬送する穀稈搬送装置12、などを刈取フレーム13に装備して構成されている。   As shown in FIGS. 1 to 5, the cutting and conveying unit 3 includes a plurality of weeding tools 7 for weeding the planted cereal as the machine travels, and a plurality of pulling devices that cause the planted cereal after weeding. 8. Clipper-shaped cutting device 9 for cutting the planted side of the planted cereal culm, a plurality of packers 10 that stirs and conveys the planted side of the chopped cereal back, and the tip side of the harvested cereal culm A plurality of the scooping belts 11 that are scraped and conveyed toward the rear, and the chopped cereals that have been scraped and conveyed are conveyed toward the rear threshing device 4 while changing the posture from the standing posture to the sideways posture. The harvesting frame 13 is equipped with the grain culm transport device 12 and the like.
図1〜3及び図6〜13に示すように、刈取フレーム13は、その左右向きの円筒状に形成された昇降支点フレーム部14の左端部位が、機体フレーム1に立設した支柱15の上端部に回動可能に支持され、かつ、昇降支点フレーム部14の右端部位が、機体フレーム1に装備した載置台16と、その載置台16に設けたホルダ17との間に回動可能に支持され、機体フレーム1と刈取フレーム13とにわたって架設した油圧式のリフトシリンダ18の作動で、その左右向きの昇降支点フレーム部14を支点にして昇降揺動する。つまり、リフトシリンダ18の作動で刈取搬送部3を昇降揺動させることができ、その昇降揺動で刈り高さ調節などを行える。   As shown in FIGS. 1 to 3 and FIGS. 6 to 13, the cutting frame 13 has a left end portion of a lifting fulcrum frame portion 14 formed in a left-right cylindrical shape, and an upper end of a column 15 erected on the body frame 1. And the right end portion of the lifting fulcrum frame portion 14 is rotatably supported between a mounting table 16 mounted on the body frame 1 and a holder 17 provided on the mounting table 16. Then, the hydraulic lift cylinder 18 installed over the machine body frame 1 and the cutting frame 13 is actuated to swing up and down with the lifting and lowering fulcrum frame portion 14 as a fulcrum. That is, the cutting and conveying section 3 can be swung up and down by the operation of the lift cylinder 18, and the height of cutting can be adjusted by the up and down swing.
図6〜10に示すように、支柱15は、その軸心周りに回動可能な状態で機体フレーム1の左前端部に立設されており、刈取搬送部3を左右揺動操作する際の支点となる。支柱15の上部には、左方に配置された操作部19の回動操作で、刈取フレーム13の下降揺動を規制しない退避位置〔図10の(イ)参照〕と、刈取フレーム13の下降揺動を規制する作用位置〔図10の(ロ)参照〕とに切り換えられる下降規制部材20が装備されている。下降規制部材20は、通常状態が退避位置に切り換えられた状態であり、作用位置に切り換えられた状態では刈取フレーム13を所定の下降位置で受け止め保持する状態となり、この保持状態では、刈取搬送部3が地上から近い高さ位置で浮上している。   6-10, the support | pillar 15 is standingly arranged in the left front end part of the body frame 1 in the state which can be rotated to the surroundings of the shaft center, and when carrying out the rocking | fluctuation conveyance part 3 right-and-left swing operation It becomes a fulcrum. At the upper part of the support column 15, a retreat position (see FIG. 10 (b)) where the lowering swing of the cutting frame 13 is not restricted by the turning operation of the operation unit 19 arranged on the left side, and the lowering of the cutting frame 13. A lowering restricting member 20 that is switched to an operation position (see FIG. 10B) that restricts swinging is provided. The lowering restricting member 20 is a state in which the normal state is switched to the retracted position, and in the state in which the lowering restricting member 20 is switched to the operating position, the cutting frame 13 is received and held at a predetermined lowered position. 3 has surfaced at a height close to the ground.
図6〜8及び図11に示すように、ホルダ17は、載置台16との間に昇降支点フレーム部14を支持する支持位置と、昇降支点フレーム部14の支持を解除する解除位置とにわたって揺動操作可能で、その遊端部を載置台16にロックピン21で固定することで支持位置に保持できる。   As shown in FIGS. 6 to 8 and 11, the holder 17 swings between a support position for supporting the lifting fulcrum frame portion 14 between the holder 17 and a release position for releasing the support of the lifting fulcrum frame portion 14. It can be moved and can be held in the support position by fixing its free end to the mounting table 16 with a lock pin 21.
図1、図12及び図13に示すように、リフトシリンダ18は、その一端部の刈取フレーム13に対する連結及び連結解除を、連結ピン22の操作で簡単に行えるように構成されている。   As shown in FIGS. 1, 12, and 13, the lift cylinder 18 is configured so that one end of the lift cylinder 18 can be easily connected to and disconnected from the cutting frame 13 by operating the connecting pin 22.
図1、図5及び図14に示すように、脱穀装置4は、横倒れ姿勢に姿勢変更された刈取穀稈の穂先側を、その前壁23に形成された受入口24から受け入れ、かつ、横倒れ姿勢に姿勢変更された刈取穀稈の株元側を、その左側部に配備された搬送突起付きの無端回動チェーンからなる縦回し式のフィードチェーン25と、そのフィードチェーン25の挟持搬送領域に対向配備された挟持レール26との間に挟持するとともに、そのフィードチェーン25の駆動により後方に向けて搬送し、その搬送で扱胴27と受網28との間に案内された刈取穀稈の穂先側に対して、扱胴27の駆動による脱穀処理を施し、その脱穀処理で得られた処理物に対して、揺動選別板29の駆動による篩い選別や、唐箕30の駆動で発生する選別風による風力選別などの選別処理を施し、その選別処理で得られた単粒化穀粒は、回収して穀粒タンク5に供給搬送し、未単粒化穀粒などは、回収して単粒化処理を施した後に揺動選別板29へ還元搬送し、ワラ屑などの塵埃は機外に排出するように構成されている。   As shown in FIGS. 1, 5, and 14, the threshing device 4 receives the tip side of the harvested cereal rice cake whose posture has been changed to the sideways posture from the receiving port 24 formed on the front wall 23 thereof, and The stockholder side of the harvested cereal rice cake whose posture has been changed to the sideways posture, the vertically-feed feed chain 25 composed of an endless rotating chain with a conveyance protrusion disposed on the left side thereof, and nipping and conveying the feed chain 25 Crop between the sandwiched rails 26 disposed opposite to the region and conveyed backward by driving the feed chain 25 and guided between the handling cylinder 27 and the receiving net 28 by the conveyance. Threshing process is performed on the tip side of the cocoon by driving the handling cylinder 27, and the processed product obtained by the threshing process is generated by sieving selection by driving the oscillating sorting plate 29 or by driving the tang 30 Wind sorting with sorting wind Which sorting process is performed, the single grain obtained by the sorting process is collected and supplied to the grain tank 5, and the non-single grain is collected and subjected to the single grain process. After that, it is conveyed back to the oscillating sorting plate 29, and dust such as straw scraps is discharged out of the machine.
尚、挟持レール26は、フィードチェーン25との間で適切な挟持力が得られるように、図外の押しバネによってフィードチェーン25に向けて付勢されている。   The clamping rail 26 is urged toward the feed chain 25 by a push spring (not shown) so that an appropriate clamping force can be obtained between the clamping rail 26 and the feed chain 25.
図5に示すように、このコンバインは、エンジン31からの動力を静油圧式無段変速装置32に伝達し、静油圧式無段変速装置32による変速後の動力を、ミッションケース33に内蔵した走行伝動系(図示せず)を介して左右のクローラ式走行装置2に伝達し、刈取搬送部3には、静油圧式無段変速装置32による変速後の動力をベルトテンション式の刈取クラッチ34を介して伝達し、脱穀装置4には、エンジン31からの動力をベルトテンション式の脱穀クラッチ35を介して伝達するように構成されている。   As shown in FIG. 5, this combine transmits power from the engine 31 to the hydrostatic continuously variable transmission 32, and power after shifting by the hydrostatic continuously variable transmission 32 is built in the transmission case 33. This is transmitted to the left and right crawler type traveling devices 2 via a traveling transmission system (not shown), and the power after shifting by the hydrostatic continuously variable transmission 32 is transmitted to the cutting and conveying unit 3 by a belt tension type cutting clutch 34. The power from the engine 31 is transmitted to the threshing device 4 via a belt-tension type threshing clutch 35.
刈取搬送部3は、刈取クラッチ34を介して伝達された動力を、刈取フレーム13に内蔵された第1作業伝動系36を介して、引起装置8や刈取装置9などに分配供給するように構成され、又、脱穀装置4は、脱穀クラッチ35を介して伝達された動力を、第2作業伝動系37を介して、フィードチェーン25や扱胴27などに分配供給するように構成されている。   The cutting and conveying unit 3 is configured to distribute and supply the power transmitted through the cutting clutch 34 to the pulling device 8 and the cutting device 9 through the first work transmission system 36 built in the cutting frame 13. In addition, the threshing device 4 is configured to distribute and supply the power transmitted via the threshing clutch 35 to the feed chain 25, the handling cylinder 27, and the like via the second work transmission system 37.
上記の構成から、静油圧式無段変速装置32による車速の変速に同調して、刈取搬送部3における穀稈搬送装置12などの駆動速度が変速されることになり、これによって、刈取搬送部3の穀稈搬送装置12では、車速の変化に比例して増減する単位時間当たりの収穫作物量にかかわらず、刈取穀稈を適当な層厚で一連搬送することができ、搬送する穀稈量の大幅な低下に起因した刈取穀稈の搬送姿勢の乱れや、搬送する穀稈量の大幅な増加に起因した刈取穀稈の詰まりなどが生じ難くなり、それらに起因した搬送不良などが効果的に抑制されることから、穀稈搬送装置12での穀稈搬送性能が向上する。又、静油圧式無段変速装置32による車速の変速にかかわらず、脱穀装置4のフィードチェーン25や扱胴27などを、脱穀処理を行うのに適した所定速度で定速駆動することができ、結果、高い脱穀性能を確保できる。   From the above configuration, the driving speed of the culm transporting device 12 and the like in the chopping transport unit 3 is shifted in synchronism with the shift of the vehicle speed by the hydrostatic continuously variable transmission 32, whereby the chopping transport unit In the cereal haul conveying device 12, regardless of the amount of harvested crops per unit time that increases or decreases in proportion to the change in vehicle speed, the harvested cereal haul can be conveyed in series at an appropriate layer thickness. Conveyance of harvested cereals due to a significant drop in the amount of cereals and clogging of harvested cereals caused by a significant increase in the amount of cereals to be conveyed are less likely to occur. Therefore, the grain haul conveyance performance in the grain haul transport device 12 is improved. Regardless of the speed change of the vehicle speed by the hydrostatic continuously variable transmission 32, the feed chain 25 and the handling cylinder 27 of the threshing device 4 can be driven at a constant speed suitable for performing the threshing process. As a result, high threshing performance can be secured.
図1〜4に示すように、穀稈搬送装置12は、刈取穀稈の株元側を挟持搬送する挟持搬送機構38と、その上方に位置して刈取穀稈の穂先側を係止搬送する係止搬送機構39とを備え、挟持搬送機構38は、左右に配備された搬送突起付きの第1無端搬送チェーン40、対応する第1無端搬送チェーン40の挟持搬送領域に対向配備された第1挟持杆41、右側の第1無端搬送チェーン40の搬送終端部から左後上方に向けて延出する状態に配備された搬送突起付きの第2無端搬送チェーン42、その第2無端搬送チェーン42の挟持搬送領域に対向配備された第2挟持杆43、第2無端搬送チェーン42の搬送終端部から後方に向けて延出する状態に配備された搬送突起付きの第3無端搬送チェーン44、及び、その第3無端搬送チェーン44の挟持搬送領域に対向配備された第3挟持杆45、などを備えて構成され、各無端搬送チェーン40,42,44の駆動により、その搬送始端側では、各パッカー10で掻き込み搬送された刈取穀稈の株元側を、左右の第1無端搬送チェーン40と第1挟持杆41との間に挟持して後上方の左右中央側に向けて寄せ集め搬送し、その搬送終端側では、寄せ集め搬送された刈取穀稈の株元側を、第2無端搬送チェーン42と第2挟持杆43との間に挟持して左後上方に向けて搬送し、その左後上方まで搬送された刈取穀稈の株元側を、第3無端搬送チェーン44と第3挟持杆45との間に挟持して後方のフィードチェーン25に向けて搬送する。   As shown in FIGS. 1 to 4, the culm conveying device 12 holds and conveys the tip side of the harvested cereal cocoon, which is located above the nip conveying mechanism 38 that nips and conveys the stock side of the chopped cereal. The holding and transporting mechanism 39 includes a first endless transporting chain 40 with transporting protrusions disposed on the left and right, and a first transporting end facing the sandwiching and transporting region of the corresponding first endless transporting chain 40. The clamping rod 41, the second endless transport chain 42 with transport protrusions arranged in a state of extending from the transport end portion of the first endless transport chain 40 on the right side toward the upper left rear, and the second endless transport chain 42 A second clamping rod 43 disposed opposite to the clamping conveyance region, a third endless conveyance chain 44 with a conveyance protrusion arranged in a state extending rearward from the conveyance terminal end of the second endless conveyance chain 42, and The third endless transport chain 3 is provided with a third clamping rod 45 disposed opposite to the clamping conveyance area 4 and driven by each endless conveyance chain 40, 42, 44, and is scraped and conveyed by each packer 10 on the conveyance start end side. The stock side of the harvested cereal culm is sandwiched between the first endless transport chain 40 on the left and right and the first gripper 41, and is gathered and transported toward the left and right center side of the rear upper side. The stock side of the harvested cereal grains collected and transported is sandwiched between the second endless transport chain 42 and the second clamping basket 43 and transported toward the upper left rear and transported to the upper rear left The stocked side of the harvested cereal culm is sandwiched between the third endless transport chain 44 and the third sandwiching culm 45 and transported toward the rear feed chain 25.
尚、第1〜3の各挟持杆41,43,45は、対応する第1〜3の各無端搬送チェーン40,42,44との間で適切な挟持力が得られるように、図外の押しバネによって対応する第1〜3の各無端搬送チェーン40,42,44に向けて付勢されている。   It should be noted that each of the first to third clamping rods 41, 43, 45 is not shown so that an appropriate clamping force can be obtained between the corresponding first to third endless transport chains 40, 42, 44. It is urged | biased toward each 1st-3rd endless conveyance chain 40,42,44 corresponding by a press spring.
図1〜6及び図14に示すように、挟持搬送機構38の搬送終端部である第3無端搬送チェーン44とフィードチェーン25の搬送始端部との間には、第3無端搬送チェーン44からフィードチェーン25への刈取穀稈の株元側の受け渡しを中継する縦回し式の補助搬送装置46が装備されている。   As shown in FIGS. 1 to 6 and 14, the third endless transport chain 44 feeds between the third endless transport chain 44, which is the transport end portion of the sandwiching transport mechanism 38, and the transport start end of the feed chain 25. A vertical rotation type auxiliary conveyance device 46 that relays the delivery of the harvested cereal rice cake to the chain 25 is provided.
補助搬送装置46は、第3無端搬送チェーン44の搬送終端左横側方に配置された前側従動ローラ47、フィードチェーン25の搬送始端右横側方に配置された後側従動ローラ48、後側従動ローラ48の下方に配置された駆動スプロケット49、前側従動ローラ48と駆動スプロケット49との間に配置されたテンションローラ50、及び、それらにわたって回し掛けられた搬送突起付きの無端搬送チェーン51、などを備えて構成され、その無端搬送チェーン51における搬送始端側の搬送領域が、第3無端搬送チェーン44における搬送終端側の搬送領域と搬送方向で重なり合う状態に、又、その無端搬送チェーン51の搬送終端位置P1が、フィードチェーン25の搬送始端位置P2と、それら無端搬送チェーン51及びフィードチェーン25の搬送方向及び高さ方向で一致し、かつ、その搬送領域での搬送軌跡K1と、フィードチェーン25の搬送始端側での搬送軌跡K2とが略一直線上に位置する状態となるように、機体フレーム1における支柱15の後方に配備された支持台52に、支持プレート53などを介して支持されている。   The auxiliary conveyance device 46 includes a front driven roller 47 disposed on the left lateral side of the conveyance end of the third endless conveyance chain 44, a rear driven roller 48 disposed on the right lateral side of the conveyance start end of the feed chain 25, and a rear side. A driving sprocket 49 disposed below the driven roller 48, a tension roller 50 disposed between the front driven roller 48 and the driving sprocket 49, and an endless conveying chain 51 with a conveying protrusion that is laid around them, and the like The transport end side transport region of the endless transport chain 51 overlaps with the transport end side transport region of the third endless transport chain 44 in the transport direction, and the endless transport chain 51 transports the endless transport chain 51. The end position P1 is the transfer start end position P2 of the feed chain 25, the endless transfer chain 51 and the feed chain. So that the transport path K1 in the transport area and the transport path K2 on the transport start end side of the feed chain 25 are positioned substantially in a straight line. The support frame 52 is supported by a support base 52 provided behind the support column 15 in the machine body frame 1 through a support plate 53 and the like.
無端搬送チェーン51の搬送終端位置P1は、その搬送軌跡K1が、無端搬送チェーン51及びフィードチェーン25の非搬送領域を隠す脱穀装置4のサイドカバー54に隠れる位置であり、又、フィードチェーン25の搬送始端位置P2は、その搬送軌跡K2がサイドカバー54から現れる位置であり、かつ、それらの位置P1,P2は、無端搬送チェーン51の搬送終端側を後側従動ローラ48を介して支持する搬送終端側の支軸55と、フィードチェーン25の搬送始端部を従動スプロケット56を介して支持する搬送始端側の支軸57との間で、無端搬送チェーン51の搬送軌跡K1と、フィードチェーン25の搬送軌跡K2とが交差する位置に設定されている。補助搬送装置46の搬送軌跡K1は、無端搬送チェーン51の駆動時にその搬送突起58の先端によって形成されるものであり、又、フィードチェーン25の搬送軌跡K2は、フィードチェーン25の駆動時にその搬送突起59の先端によって形成されるものである。   The conveyance end position P1 of the endless conveyance chain 51 is a position where the conveyance locus K1 is hidden by the side cover 54 of the threshing device 4 that conceals the non-conveyance region of the endless conveyance chain 51 and the feed chain 25. The conveyance start end position P2 is a position where the conveyance locus K2 appears from the side cover 54, and these positions P1 and P2 are conveyances that support the conveyance end side of the endless conveyance chain 51 via the rear driven roller 48. Between the support shaft 55 on the end side and the support shaft 57 on the transport start end side that supports the transport start end portion of the feed chain 25 via the driven sprocket 56, the transport locus K1 of the endless transport chain 51 and the feed chain 25 It is set at a position where the conveyance locus K2 intersects. The transport path K1 of the auxiliary transport device 46 is formed by the tip of the transport projection 58 when the endless transport chain 51 is driven, and the transport path K2 of the feed chain 25 is transported when the feed chain 25 is driven. It is formed by the tip of the protrusion 59.
補助搬送装置46の駆動スプロケット49は、刈取フレーム13の昇降支点フレーム部14から左方に向けて延出された第1作業伝動系36の第1出力軸60に、補助搬送装置46の左横側方に隣接配備されたチェーン式伝動機構61や、そのチェーン式伝動機構61の左横側方に隣接配備されたギヤ式伝動機構62などを介して連動連結されている。   The drive sprocket 49 of the auxiliary transport device 46 is connected to the left side of the auxiliary transport device 46 on the first output shaft 60 of the first work transmission system 36 extending leftward from the lifting fulcrum frame portion 14 of the cutting frame 13. The chain-type transmission mechanism 61 arranged adjacent to the side and the gear-type transmission mechanism 62 arranged adjacent to the left lateral side of the chain-type transmission mechanism 61 are linked together.
つまり、補助搬送装置46の駆動速度も、刈取搬送部3の穀稈搬送装置12などとともに静油圧式無段変速装置32による車速の変速に同調して変速される。   That is, the driving speed of the auxiliary conveyance device 46 is also changed in synchronization with the shift of the vehicle speed by the hydrostatic continuously variable transmission 32 together with the culm conveyance device 12 of the harvesting conveyance unit 3 and the like.
そして、補助搬送装置46は、脱穀装置4のフィードチェーン25が車速の変化にかかわらず所定速度Aで定速駆動されるのに対し、その無端搬送チェーン51が速度0〜Bの範囲で車速の変速に同調して変速されるように構成され、又、穀稈搬送装置12は、その挟持搬送機構38の第3無端搬送チェーン44が速度0〜Cの範囲で車速の変速に同調して変速されるように構成され、それらの駆動速度A(定速),B(最速),C(最速)の関係が、A<B≒Cで、かつ、速度Bと速度Cの速度差が1パーセント以内となるように設定されている。   The auxiliary transport device 46 is driven at a constant speed A at a predetermined speed A regardless of changes in the vehicle speed, whereas the endless transport chain 51 has a vehicle speed within the range of speed 0 to B. The cereal conveyance device 12 is configured so that the third endless conveyance chain 44 of the pinch conveyance mechanism 38 is synchronized with the speed change of the vehicle speed in the range of speed 0 to C. The relationship between the driving speeds A (constant speed), B (fastest speed), and C (fastest speed) is A <B≈C, and the speed difference between the speed B and the speed C is 1%. It is set to be within.
この構成から、穀稈搬送装置12によって起立姿勢から横倒れ姿勢に向けて姿勢変更しながら搬送された刈取穀稈を脱穀装置4に供給する際には、先ず、穀稈搬送装置12の挟持搬送機構38によって挟持搬送された刈取穀稈の株元側が、速度差の殆どない挟持搬送機構38の第3無端搬送チェーン44と補助搬送装置46の無端搬送チェーン51とで2点支持された安定性の高い状態で、穀稈搬送装置12による搬送で得られた横倒れに近い姿勢から脱穀装置4への供給に適した横倒れ姿勢への若干の刈取穀稈の姿勢変更を行いながら、挟持搬送機構38から補助搬送装置46に受け渡され、次に、その補助搬送装置46から、挟持搬送機構38との間よりも速度差が大きくなることがあるものの、刈取穀稈の搬送姿勢が同じ姿勢(脱穀装置4への供給に適した安定性の高い横倒れ姿勢)に設定されたフィードチェーン25に受け渡されることになる。   From this configuration, when the harvested cereals conveyed while changing the posture from the standing posture to the lying-down posture by the cereal conveying device 12 are supplied to the threshing device 4, first, the sandwiched conveying of the cereal conveying device 12 is performed. Stability in which the stocker side of the harvested cereal rice cake held and transported by the mechanism 38 is supported at two points by the third endless transport chain 44 of the sandwiching transport mechanism 38 and the endless transport chain 51 of the auxiliary transport device 46 with almost no speed difference. Nipping and transporting while slightly changing the posture of the harvested cereals from the posture close to the sideways fall obtained by the conveyance by the cereal conveyance device 12 to the sideways posture suitable for the supply to the threshing device 4 Although the speed difference may be larger than that between the auxiliary conveyance device 46 and the holding conveyance mechanism 38 from the auxiliary conveyance device 46, the conveyance posture of the harvested cereal meal is the same posture. (Threshing Feed was composed passed by it to the feed chain 25 which is set to a higher stable lateral falling posture) suitable for to 4.
要するに、穀稈搬送装置12の挟持搬送機構38からフィードチェーン25への刈取穀稈の受け渡しを直接行うように構成した場合には、その受け渡し箇所において、穀稈搬送装置12による横倒れに近い姿勢から脱穀装置4への供給に適した横倒れ姿勢への刈取穀稈の姿勢変更と、搬送速度の大幅な変更とが同時に行われることがあり、その結果、その受け渡し箇所において、刈取穀稈の搬送姿勢が乱れ易くなり、その搬送姿勢の乱れに起因した搬送不良や脱落を招き易くなるのであるが、上記のように補助搬送装置46を配備すれば、刈取穀稈の受け渡し箇所において、刈取穀稈の姿勢変更と搬送速度の大幅な変更とが同時に行われることを回避でき、結果、その受け渡し箇所での刈取穀稈の搬送姿勢の乱れを抑制できる。   In short, when it is configured to directly deliver the harvested cereal mash from the sandwiching and conveying mechanism 38 of the cereal conveying device 12 to the feed chain 25, the posture close to the lateral fall by the cereal conveying device 12 at the delivery location. Change in the posture of the harvested cereal rice cake to a sideways posture suitable for supply to the threshing device 4 and a significant change in the conveying speed may be performed at the same time. The transport posture is likely to be disturbed, and it is easy to cause a transport failure or dropout due to the disturbed transport posture. However, if the auxiliary transport device 46 is provided as described above, the harvested cereal at the delivery point of the harvested cereal culm. It is possible to avoid simultaneously changing the posture of the cocoon and changing the conveyance speed at the same time, and as a result, it is possible to suppress the disorder of the conveyance posture of the harvested cereal at the delivery point.
又、刈取穀稈の姿勢が変更される穀稈搬送装置12の挟持搬送機構38から補助搬送装置46への刈取穀稈の受け渡し時には、速度差の殆どない挟持搬送機構38の第3無端搬送チェーン44と補助搬送装置46の無端搬送チェーン51とで2点支持された安定性の高い状態であることから、刈取穀稈の姿勢変更に起因して刈取穀稈の搬送姿勢が乱れることを効果的に抑制できる。   Further, the third endless transport chain of the sandwiching and transporting mechanism 38 having almost no speed difference when delivering the harvested sorghum to the auxiliary transporting device 46 from the sandwiching and transporting mechanism 38 of the grain and shelling transporting device 12 in which the posture of the harvested mashing culm is changed. 44 and the endless conveying chain 51 of the auxiliary conveying device 46 are in a highly stable state, and it is effective that the conveying posture of the harvested cereal cocoon is disturbed due to the change in the posture of the harvested cereal cocoon. Can be suppressed.
更に、速度差が比較的大きくなることのある補助搬送装置46とフィードチェーン25との間では、それらの位置関係を、補助搬送装置46の搬送終端位置P1とフィードチェーン25の搬送始端位置P2とが搬送方向及び高さ方向で一致する状態にしたことで、補助搬送装置46とフィードチェーン25とで刈取穀稈を両持ちすることによる刈取穀稈の搬送姿勢の乱れを回避でき、又、その乱れを回避するために補助搬送装置46とフィードチェーン25との間に搬送方向に距離を隔てることに起因した刈取穀稈に対する搬送力の低下を防止できる。しかも、これらの搬送姿勢の乱れや搬送力の低下を回避する上において、補助搬送装置46とフィードチェーン25との間に落差を設ける必要がなく、補助搬送装置46の搬送領域での搬送軌跡K1とフィードチェーン25の搬送始端部での搬送軌跡K2とを略一直線上に位置させた状態にできることから、落差に起因した刈取穀稈の搬送姿勢の乱れを回避できるとともに、補助搬送装置46からフィードチェーン25への刈取穀稈の受け渡し搬送をスムーズかつ美麗に行える。   Further, between the auxiliary conveyance device 46 and the feed chain 25 where the speed difference may be relatively large, the positional relationship between the conveyance end position P1 of the auxiliary conveyance device 46 and the conveyance start end position P2 of the feed chain 25 is determined. In the conveying direction and the height direction, the auxiliary conveying device 46 and the feed chain 25 can avoid the disturbance in the conveying posture of the harvested cereal by holding both the harvested cereals. In order to avoid the disturbance, it is possible to prevent a decrease in the conveyance force for the harvested cereal meal resulting from the separation in the conveyance direction between the auxiliary conveyance device 46 and the feed chain 25. In addition, in order to avoid these disturbances in the transport posture and a decrease in the transport force, it is not necessary to provide a drop between the auxiliary transport device 46 and the feed chain 25, and the transport locus K1 in the transport region of the auxiliary transport device 46. And the transfer locus K2 at the transfer start end of the feed chain 25 can be in a substantially straight line, so that the disturbance in the transfer posture of the harvested cereals caused by the drop can be avoided and the feed from the auxiliary transfer device 46 can be avoided. Delivery of the harvested cereal meal to the chain 25 can be performed smoothly and beautifully.
その上、挟持搬送機構38の第3無端搬送チェーン44及び補助搬送装置46の無端搬送チェーン51とフィードチェーン25との駆動速度の関係を、第3無端搬送チェーン44及び無端搬送チェーン51の最速状態では、それらの駆動速度がフィードチェーン25の駆動速度よりも速くなるようにしたことで、第3無端搬送チェーン44及び無端搬送チェーン51の変速範囲内の速度でフィードチェーン25が駆動されることから、刈取穀稈の受け渡しが行われる無端搬送チェーン51とフィードチェーン25との間での速度差を軽減でき、その速度差に起因した刈取穀稈の搬送姿勢の乱れを抑制できる。   In addition, the relationship between the driving speeds of the third endless transport chain 44 of the clamping transport mechanism 38 and the endless transport chain 51 of the auxiliary transport device 46 and the feed chain 25 is determined as the fastest state of the third endless transport chain 44 and the endless transport chain 51. The feed chain 25 is driven at a speed within the shifting range of the third endless transport chain 44 and the endless transport chain 51 by making the drive speed higher than the drive speed of the feed chain 25. The speed difference between the endless transport chain 51 and the feed chain 25 where the harvested cereal rice cake is delivered can be reduced, and the disturbance in the transport posture of the harvested grain rice cake due to the speed difference can be suppressed.
その結果、刈取穀稈を起立姿勢から横倒れ姿勢に姿勢変更しながら脱穀装置4に向けて搬送する供給搬送を、刈取穀稈の搬送姿勢の乱れや搬送力の低下などに起因した刈取穀稈の搬送不良や脱落を効果的に招き難くしながらスムーズかつ美麗に行える。   As a result, the supply and conveyance that conveys the harvested cereal rice cake toward the threshing device 4 while changing the posture from the standing posture to the sideways posture, It is possible to carry out smoothly and beautifully while making it difficult to cause poor conveyance and dropout.
図2、図3、図5〜8及び図14に示すように、チェーン式伝動機構61は、第1出力軸60と一体回転する第1スプロケット63、その後方に配備された第2スプロケット64、それらのスプロケット63,64にわたって回し掛けられた伝動チェーン65、及び、その伝動チェーン65を緊張させるテンション金具66、などを備えて構成され、支持プレート53に所定姿勢での簡易着脱が可能となるように装備されたテンション金具66を取り外して、伝動チェーン65の張りを緩めることで、第1スプロケット63に対する伝動チェーン65の着脱を簡単に行える。   2, 3, 5 to 8, and 14, the chain transmission mechanism 61 includes a first sprocket 63 that rotates integrally with the first output shaft 60, a second sprocket 64 disposed behind the first sprocket 64, A transmission chain 65 that is turned around the sprockets 63 and 64, a tension metal fitting 66 that tensions the transmission chain 65, and the like are configured, and the support plate 53 can be easily attached and detached in a predetermined posture. The transmission chain 65 can be easily attached to and detached from the first sprocket 63 by detaching the tension fitting 66 mounted on the, and loosening the tension of the transmission chain 65.
図5及び図14に示すように、ギヤ式伝動機構62は、第1伝動軸67を介してチェーン式伝動機構61の第2スプロケット64と一体回転する第1ギヤ68、この第1ギヤ68に噛合するとともに第2伝動軸69を介して補助搬送装置46の駆動スプロケット49と一体回転する第2ギヤ70、及び、それらのギヤ68,70を外囲するギヤーケース71、などを備えて構成されている。   As shown in FIGS. 5 and 14, the gear type transmission mechanism 62 includes a first gear 68 that rotates integrally with the second sprocket 64 of the chain type transmission mechanism 61 via the first transmission shaft 67, and the first gear 68. The second gear 70 that meshes with the drive sprocket 49 of the auxiliary transport device 46 via the second transmission shaft 69 and a gear case 71 that surrounds the gears 68 and 70 are provided. ing.
以上の構成から、支柱15を支点にして刈取搬送部3を左右揺動させる際には、先ず、下降規制部材20を作用位置に切り換えて刈取搬送部3を所定の下降位置に保持し、次に、チェーン式伝動機構61のテンション金具66を支持プレート53から取り外して、第1スプロケット63に対する伝動チェーン65の回し掛けを解除し、連結ピン22による刈取フレーム13とリフトシリンダ18との連結を解除した後、ロックピン21による載置台16に対するホルダ17の固定を解除すればよく、これらの操作を行うだけで、刈取搬送部3と脱穀装置4との間に、穀稈搬送装置12の挟持搬送機構38からフィードチェーン25への刈取穀稈の受け渡しを良好にする補助搬送装置46を装備するものでありながら、刈取搬送部3を、搭乗運転部6の左横側方に隣接して脱穀装置4の前方に位置する作業位置と、搭乗運転部6の左横側方と脱穀装置4の前方とを大きく開放するメンテナンス位置とにわたって左右揺動させることができ、刈取搬送部3と脱穀装置4との間や刈取搬送部3と搭乗運転部6との間に配備された伝動系や操作系などのメンテナンスを容易に行える。   With the above configuration, when swinging the cutting and conveying unit 3 left and right with the support column 15 as a fulcrum, first, the lowering restricting member 20 is switched to the operating position to hold the cutting and conveying unit 3 at a predetermined lowered position. Then, the tension metal fitting 66 of the chain type transmission mechanism 61 is removed from the support plate 53 to release the turning of the transmission chain 65 with respect to the first sprocket 63 and the connection between the cutting frame 13 and the lift cylinder 18 by the connection pin 22 is released. After that, it is only necessary to release the fixing of the holder 17 to the mounting table 16 by the lock pin 21, and only by performing these operations, the pallet conveying device 12 is nipped and conveyed between the harvesting conveying unit 3 and the threshing device 4. While carrying the auxiliary conveyance device 46 that makes the delivery of the harvested cereals from the mechanism 38 to the feed chain 25 good, Swing left and right over a work position located in front of the threshing device 4 adjacent to the left lateral side of the unit 6 and a maintenance position that greatly opens the left lateral side of the boarding operation unit 6 and the front of the threshing device 4. Maintenance of a transmission system, an operation system, and the like provided between the harvesting conveyance unit 3 and the threshing device 4 or between the harvesting conveyance unit 3 and the boarding operation unit 6 can be easily performed.
又、補助搬送装置46を、刈取搬送部3の第1作業伝動系36を介した動力で駆動することで、静油圧式無段変速装置32による車速の変速に同調して刈取搬送部3とともに変速されるように構成しながらも、刈取搬送部3を左右揺動させる際には脱穀装置4側に残すことができるので、刈取搬送部3と一体揺動させる場合に比較して、刈取搬送部3と脱穀装置4との間に補助搬送装置46の揺動を許容するための空間を設ける必要がなく、しかも、組み付け時などにおける補助搬送装置46とフィードチェーン25との位置合わせも行い易くなる。   Further, the auxiliary conveying device 46 is driven by the power through the first work transmission system 36 of the cutting and conveying unit 3, so that the auxiliary conveying device 46 and the cutting and conveying unit 3 are synchronized with the shifting of the vehicle speed by the hydrostatic continuously variable transmission 32. Although it is configured to be shifted, it can remain on the threshing device 4 side when the cutting and conveying unit 3 is swung left and right, so that the cutting and conveying unit is compared with the case of swinging integrally with the cutting and conveying unit 3. It is not necessary to provide a space for allowing the auxiliary conveying device 46 to swing between the threshing unit 4 and the threshing device 4, and the auxiliary conveying device 46 and the feed chain 25 can be easily aligned when assembled. Become.
図4、図6及び図14に示すように、挟持搬送機構38から補助搬送装置46への刈取穀稈の受け渡しを行う受け渡し箇所には、刈取穀稈の株元側を挟持搬送機構38から補助搬送装置46に案内するガイド杆72と、刈取穀稈の株元側を補助搬送装置46に向けて押さえ付ける押さえ板73とが配備されている。ガイド杆72は、刈取フレーム13から無端搬送チェーン51に向けて上下揺動可能に延出された丸鋼材からなり、その延出端側が補助搬送装置46の無端搬送チェーン51によって受け止め支持され、引きバネ74によって走行時の振動などに起因した跳ね上がりが防止されている。押さえ板73は、ガイド杆72から補助搬送装置46に向けて延設された板バネからなり、ガイド杆72と一体揺動し、かつ、その弾性で刈取穀稈の株元側を補助搬送装置46に向けて押さえ付ける。   As shown in FIGS. 4, 6, and 14, the stocker side of the harvested cereal mash is assisted from the sandwiching transport mechanism 38 at the delivery location where the harvested cereal mash is delivered from the clamping transport mechanism 38 to the auxiliary transport device 46. A guide rod 72 that guides the conveying device 46 and a pressing plate 73 that presses the stock side of the harvested cereal rice cake toward the auxiliary conveying device 46 are provided. The guide rod 72 is made of a round steel material extending from the cutting frame 13 toward the endless transport chain 51 so as to be swingable up and down, and its extended end side is received and supported by the endless transport chain 51 of the auxiliary transport device 46 and pulled. The spring 74 prevents jumping due to vibration during traveling. The holding plate 73 is made of a leaf spring extending from the guide rod 72 toward the auxiliary conveying device 46, swings integrally with the guide rod 72, and elastically moves the stock side of the harvested cereal cocoon to the auxiliary conveying device. Press toward 46.
つまり、ガイド杆72は、刈取搬送部3に対して上下揺動可能で、かつ、その延出端側が補助搬送装置46で受け止め支持されることから、刈取搬送部3の昇降揺動による刈り高さ調節にかかわらず適切な案内姿勢に維持されるようになり、結果、刈り高さ調節にかかわらず、ガイド杆72による刈取穀稈株元側の挟持搬送機構38から補助搬送装置46への案内を良好に行える。   That is, the guide rod 72 can swing up and down with respect to the cutting and conveying unit 3, and the extension end side is received and supported by the auxiliary conveying device 46. As a result, it is maintained in an appropriate guide posture regardless of the height adjustment, and as a result, regardless of the cutting height adjustment, the guide rod 72 guides from the holding conveyance mechanism 38 on the side of the harvested culm stock to the auxiliary conveyance device 46. Can be performed well.
そして、その刈り高さ調節にかかわらず適切な案内姿勢に維持されるガイド杆72から押さえ板73を延出することから、押さえ板73は、刈取搬送部3の昇降揺動による刈り高さ調節にかかわらず適切な押さえ付け姿勢に維持されるようになり、結果、刈り高さ調節にかかわらず、押さえ板73の弾性による刈取穀稈の株元側に対する押さえ付け力が略一定となり、その押さえ付け力が弱くなり過ぎることに起因した補助搬送装置46での刈取穀稈の搬送姿勢の乱れや、その押さえ付け力が強くなり過ぎることに起因した補助搬送装置46での刈取穀稈の詰まりなどを防止できる。   The pressing plate 73 extends from the guide rod 72 that is maintained in an appropriate guide posture regardless of the cutting height adjustment. Therefore, the pressing plate 73 adjusts the cutting height by moving the cutting and conveying unit 3 up and down. Regardless of the cutting height, the pressing force against the stock side of the harvested cereal by the elasticity of the pressing plate 73 becomes substantially constant. Disturbance of the transport posture of the harvested cereal rice cake in the auxiliary transport device 46 due to the attachment force becoming too weak, clogging of the harvested cereal rice cake in the auxiliary transportation device 46 due to the excessive pressing force, etc. Can be prevented.
図4及び図14に示すように、挟持搬送機構38には、その第3無端搬送チェーン44から補助搬送装置46の無端搬送チェーン51に受け渡される刈取穀稈の株元側を、挟持搬送機構38及び補助搬送装置46の左側方箇所で下方から受け止め支持する第1支持杆75が装備されており、この第1支持杆75による受け止め支持で、挟持搬送機構38から補助搬送装置46に受け渡される刈取穀稈の穂先側の浮き上がりを防止でき、その浮き上がりに起因した刈取穀稈の位置ずれや脱落を回避できる。   As shown in FIG. 4 and FIG. 14, the nipping and conveying mechanism 38 includes a nipping and conveying mechanism for holding the stock side of the harvested cereal rice cake passed from the third endless conveying chain 44 to the endless conveying chain 51 of the auxiliary conveying device 46. 38 and the auxiliary conveyance device 46 are provided with a first support rod 75 that is received and supported from below on the left side of the auxiliary conveyance device 46, and is received from the holding conveyance mechanism 38 to the auxiliary conveyance device 46 by the reception support by the first support rod 75. It is possible to prevent the cutting side of the harvested cereal rice cake from being lifted up, and to prevent the misalignment or dropping off of the harvested rice cake caused by the lifting.
図4及び図6に示すように、補助搬送装置46には、その無端搬送チェーン51からフィードチェーン25に受け渡される刈取穀稈の株元側を、補助搬送装置46及びフィードチェーン25の左側方箇所で下方から受け止め支持する第2支持杆76が装備されており、この第2支持杆76による受け止め支持で、補助搬送装置46からフィードチェーン25に受け渡される刈取穀稈の穂先側の浮き上がりを防止でき、その浮き上がりに起因した刈取穀稈の位置ずれや脱落を回避できる。   As shown in FIGS. 4 and 6, the auxiliary conveyance device 46 has a stocker side of the harvested cereals passed from the endless conveyance chain 51 to the feed chain 25 on the left side of the auxiliary conveyance device 46 and the feed chain 25. A second support rod 76 that is received and supported from below is provided at the location. With the support supported by the second support rod 76, the tip side of the harvested cereal rice cake passed from the auxiliary transport device 46 to the feed chain 25 is lifted. It is possible to prevent the misalignment and dropping off of the harvested cereals caused by the floating.
図1〜4及び図15に示すように、穀稈搬送装置12の係止搬送機構39は、右端に配備された掻込ベルト11の上方から脱穀装置4の受入口24の近くまで延出する状態に配備された右側係止搬送帯77、右端に配備された掻込ベルト11の上方から右側係止搬送帯77の中間部に向けて延出する状態に配備された左側係止搬送帯78、及び、右側係止搬送帯77の搬送終端側右上方に所定間隔を隔てて並設された上側係止搬送帯79、などを備えて構成され、各係止搬送帯77〜79の駆動により、その搬送始端側では、各掻込ベルト11で掻き込み搬送された刈取穀稈の穂先側に、右側係止搬送帯77の搬送始端側又は左側係止搬送帯78が係止して後方の左右中央側に向けて掻き寄せ搬送し、その搬送終端側では、掻き寄せ搬送された刈取穀稈の穂先側における株元寄り部分に右側係止搬送帯77の搬送終端側が係止し、かつ、掻き寄せ搬送された刈取穀稈の穂先側における穂先寄り部分に上側係止搬送帯79が係止して、その穂先側を穀稈搬送装置12の上方から右側方に徐々に変位させながら後方の脱穀装置4の受入口24に向けて搬送する。   As shown in FIGS. 1 to 4 and FIG. 15, the locking and conveying mechanism 39 of the culm conveying device 12 extends from above the scraping belt 11 provided at the right end to the vicinity of the receiving port 24 of the threshing device 4. The right side locking and conveying belt 77 provided in a state, and the left side locking and conveying belt 78 provided in a state extending from above the scraping belt 11 provided at the right end toward the middle portion of the right side engaging and conveying belt 77. And an upper locking conveyance band 79 arranged in parallel at a predetermined interval on the upper right side of the conveyance end side of the right locking conveyance band 77, and the like, and by driving each of the locking conveyance bands 77 to 79 On the conveyance start end side, the conveyance start end side or the left engagement conveyance band 78 of the right engagement conveyance band 77 is engaged with the tip side of the harvested cereal rice cake that has been conveyed by the respective accumulation belts 11, and the rear side It is scraped and transported toward the left and right center side, and it is scraped and transported at the transport end side. The transfer end side of the right side locking transport band 77 is locked to the stock side portion on the tip side of the harvested cereal rice cake, and the upper side locking transport band 79 is attached to the tip side portion on the tip side of the harvested cereal rice cake that has been scraped and conveyed. Is engaged and conveyed toward the receiving port 24 of the rear threshing device 4 while gradually displacing the tip side from the upper side of the cereal conveying device 12 to the right side.
つまり、係止搬送機構39の搬送終端側は、刈取穀稈の穂先側における株元寄り部分を係止搬送する下側係止搬送帯として機能する右側係止搬送帯77と、刈取穀稈の穂先側における穂先寄り部分を係止搬送する上側係止搬送帯79とを、横倒れ姿勢に近付く刈取穀稈の稈長方向に所定間隔を隔てる状態に配備する2段搬送構造に構成されている。   That is, the conveyance terminal side of the latch conveyance mechanism 39 includes a right latch conveyance band 77 that functions as a lower latch conveyance band that latches and conveys the stock-side portion on the tip side of the harvested cereal rice bran, and The upper locking conveyance band 79 that locks and conveys the portion near the tip on the tip side is configured in a two-stage transfer structure that is arranged in a state that is spaced apart by a predetermined distance in the cocoon length direction of the harvested cereal that approaches the sideways posture.
又、係止搬送機構39は、刈取フレーム13の昇降支点フレーム部14から右上方に向けて延出された第1作業伝動系36の第2出力軸80に、同径に形成された右側係止搬送帯77の駆動スプロケット81と上側係止搬送帯79の駆動スプロケット82とを、その第2出力軸80と一体回転する状態に装備して、右側係止搬送帯77と上側係止搬送帯79とが等速駆動されるように構成されている。   In addition, the locking and conveying mechanism 39 is a right-side engagement formed on the second output shaft 80 of the first work transmission system 36 extending from the lifting fulcrum frame portion 14 of the cutting frame 13 toward the upper right and having the same diameter. The drive sprocket 81 of the stop conveyance band 77 and the drive sprocket 82 of the upper engagement conveyance band 79 are equipped so as to rotate integrally with the second output shaft 80, and the right engagement conveyance band 77 and the upper engagement conveyance band 79 is driven at a constant speed.
上記の構成から、刈取穀稈の搬送姿勢が横倒れ姿勢に近くなる穀稈搬送装置12の搬送終端側では、刈取穀稈は、その穂先側が右側係止搬送帯77と上側係止搬送帯79とで、それらの速度差に起因した係止位置の変化のない安定性の高い搬送作用を受け易い2点支持状態で係止搬送されることになり、これによって、穀稈搬送装置12における搬送終端側の穀稈搬送経路において、刈取穀稈の搬送を妨げる浮きワラなどが発生しても、その浮きワラなどの影響を受け難くなり、又、浮きワラなどが、その状態によっては刈取穀稈の穂先側とともに搬送されるようになる。   From the above configuration, on the conveyance end side of the cereal conveying device 12 in which the conveying posture of the harvested cereal rice cake is close to the sideways posture, the harvested cereal rice cake has the tip side on the right side engagement conveyance belt 77 and the upper engagement conveyance belt 79. Thus, the two-point supported state that is easily subjected to a highly stable transfer operation without change in the locking position due to the speed difference between them is transferred in the cereal transfer device 12. Even if floating straws, etc. that hinder the transportation of harvested cereals occur in the cereal transportation route on the terminal side, they are not easily affected by the floating straws, etc. It will be transported along with the tip of the head.
その結果、浮きワラなどに起因して、穀稈搬送装置12で搬送される刈取穀稈の搬送姿勢が、挟持搬送機構38で挟持搬送されることで本来より浮きワラなどの影響を受け難い刈取穀稈の株元側に対して、係止搬送機構39で係止搬送される刈取穀稈の穂先側が遅れて搬送される穂先遅れ姿勢になることを抑制できる。   As a result, due to floating straw and the like, the harvest posture of the harvested grain straw conveyed by the grain straw transporting device 12 is pinched and conveyed by the pinching and conveying mechanism 38, so that the harvesting is less affected by floating straw and the like. It can suppress that the head end side of the harvested cereal rice cake which is latched and conveyed by the latching and conveying mechanism 39 with respect to the stock side of the grain kernel is delayed in the tip style.
尚、各係止搬送帯77〜79は、無端回動チェーン83に複数の係止爪84を一定間隔を隔てる状態に並設して構成されている。   Each of the locking conveyance bands 77 to 79 is configured by arranging a plurality of locking claws 84 on the endless rotating chain 83 so as to be spaced apart from each other.
ところで、前述したように穀稈搬送装置12の挟持搬送機構38とフィードチェーン25との間に補助搬送装置46を配備すると、挟持搬送機構12からフィードチェーン25への刈取穀稈の受け渡し距離が大きくなる。そのため、図16に示すように、穀稈搬送装置12に、上側係止搬送帯79を備えない1段搬送構造(従来構造)に構成された係止搬送機構85を装備することで、浮きワラなどに起因して、刈取穀稈の搬送姿勢が比較的大きい穂先遅れ姿勢になった場合には、刈取穀稈の株元側がフィードチェーン25の搬送始端部に届かないことがある。そして、この現象が生じると、刈取穀稈がフィードチェーン25で搬送されずに脱穀装置4の直前箇所で残留し、穀稈詰まりなどの原因になる。   By the way, when the auxiliary conveyance device 46 is provided between the pinch conveyance mechanism 38 and the feed chain 25 of the cereal conveyance device 12 as described above, the delivery distance of the harvested cereals from the pinch conveyance mechanism 12 to the feed chain 25 is large. Become. Therefore, as shown in FIG. 16, the floating straw is provided by equipping the cereal conveyance device 12 with a locking conveyance mechanism 85 configured in a one-stage conveyance structure (conventional structure) that does not include the upper locking conveyance band 79. For example, when the transported posture of the harvested cereal rice cake becomes a relatively large tip delayed posture, the stocker side of the harvested cereal rice cake may not reach the conveyance start end portion of the feed chain 25. When this phenomenon occurs, the harvested cereal meal is not conveyed by the feed chain 25 but remains immediately before the threshing device 4 and causes clogging and the like.
そこで、このコンバインにおいては、前述したように係止搬送機構39の搬送終端側を2段搬送構造に構成して、刈取穀稈の搬送姿勢が浮きワラなどに起因して穂先遅れ姿勢になることを抑制しているのであり、その結果、穀稈搬送装置12の挟持搬送機構38からフィードチェーン25への刈取穀稈の受け渡しを補助搬送機構46を介して行うようにしても、フィードチェーン25への刈取穀稈の受け渡しを確実に行えるようになり、フィードチェーン25による刈取穀稈の搬送を良好に行える(図15参照)。   Therefore, in this combine, as described above, the conveyance end side of the locking conveyance mechanism 39 is configured in a two-stage conveyance structure, and the harvesting cereal conveyance posture becomes a tip-lagging posture due to floating straw or the like. As a result, even if the harvested cereals are transferred from the pinching and conveying mechanism 38 of the cereal conveying device 12 to the feed chain 25 via the auxiliary conveying mechanism 46, the feed chain 25 is transferred to the feed chain 25. Therefore, it is possible to reliably deliver the harvested cereal rice cake and to carry the harvested cereal meal well by the feed chain 25 (see FIG. 15).
従って、補助搬送装置46を装備することで、刈取穀稈を受け渡す際の搬送姿勢の乱れなどに起因した刈取穀稈の搬送不良や脱落を回避しながら、補助搬送装置46を装備することで招き易くなる、刈取穀稈が浮きワラなどで比較的大きい穂先遅れ姿勢になってフィードチェーン25に受け渡されなくなることに起因した脱穀装置4の直前箇所での穀稈詰まりなどを防止できる。   Therefore, by equipping the auxiliary transport device 46, the auxiliary transport device 46 can be equipped while avoiding poor transport and dropout of the chopped cereal rice cake due to disturbance in the transport posture when delivering the harvested cereal rice cake. It is possible to prevent clogging at the location immediately before the threshing device 4 due to the fact that the harvested cereal cocoon is in a relatively large tip-delayed posture due to a floating straw or the like and is not delivered to the feed chain 25.
〔別実施例〕
以下、本発明の別実施例を列記する。
〔1〕コンバインとしては、静油圧式無段変速装置32の代わりに例えばベルト式無段変速装置などを装備したものであってもよい。
[Another Example]
Other embodiments of the present invention will be listed below.
[1] The combine may be equipped with, for example, a belt type continuously variable transmission instead of the hydrostatic continuously variable transmission 32.
〔2〕コンバインとしては、刈取搬送部3を機体フレーム1に着脱可能に連結したものであってもよい。 [2] The combine may be one in which the cutting and conveying section 3 is detachably connected to the body frame 1.
〔3〕コンバインとしては、補助搬送装置46を装備せずに、穀稈搬送装置12の挟持搬送機構38からフィードチェーン25への刈取穀稈の受け渡しを直接行うように構成したものであってもよい。 [3] The combine may be configured to directly deliver the harvested cereal to the feed chain 25 from the pinch transport mechanism 38 of the cereal transporter 12 without equipping the auxiliary transporter 46. Good.
〔4〕補助搬送装置46を、その搬送終端部がフィードチェーン25の搬送始端部よりも高くなるように配置し、補助搬送装置の搬送終端からフィードチェーンの搬送始端部に刈取穀稈を落とし込み供給することで、速度差が比較的大きくなることのある補助搬送装置46とフィードチェーン25とで刈取穀稈を両持ちすることによる刈取穀稈の搬送姿勢の乱れを回避するようにしてもよい。 [4] The auxiliary conveyance device 46 is arranged so that its conveyance terminal end is higher than the conveyance start end of the feed chain 25, and the chopped cereal is dropped and supplied from the conveyance termination of the auxiliary conveyance device to the conveyance start end of the feed chain. By doing so, you may make it avoid the disorder | damage | failure of the conveyance attitude | position of the harvested corn straw by holding both of the harvested grain mash with the auxiliary conveyance apparatus 46 and the feed chain 25 with which a speed difference may become comparatively large.
〔5〕補助搬送装置46を、その無端搬送チェーン51が、穀稈搬送装置12における挟持搬送機構38の第3無端搬送チェーン44と同じ速度で駆動されるように構成してもよい。 [5] The auxiliary transport device 46 may be configured such that the endless transport chain 51 is driven at the same speed as the third endless transport chain 44 of the pinch transport mechanism 38 in the cereal transport device 12.
〔6〕補助搬送装置46の駆動速度B(最速)と挟持搬送機構38の駆動速度(最速)との差が1パーセントよりも大きくなるように設定してもよい。 [6] The difference between the drive speed B (fastest) of the auxiliary transport device 46 and the drive speed (fastest) of the nipping and transporting mechanism 38 may be set to be greater than 1%.
〔7〕補助搬送装置46を、刈取搬送部3の刈取装置9や穀稈搬送装置12などとともに車速の変速に略同調して変速されるように構成してもよい。例えば、補助搬送装置46を、車速が所定の微速領域内である場合には、刈取搬送部3の刈取装置9や穀稈搬送装置12などとともに車速の変速にかかわらず所定の低速で定速駆動され、車速が所定の微速領域を超えている場合には、刈取搬送部3の刈取装置9や穀稈搬送装置12などとともに車速の変速に同調して変速されるように構成すれば、刈取搬送部3の刈取装置9や穀稈搬送装置12などとともに低速になり過ぎることに起因して招く虞のある切断不良や搬送不良などを未然に回避できる。又、補助搬送装置46を、車速が所定の高速以下である場合には、刈取搬送部3の刈取装置9や穀稈搬送装置12などとともに車速の変速に同調して変速され、車速が所定の高速を超える場合には、刈取搬送部3の刈取装置9や穀稈搬送装置12などとともに車速の変速にかかわらず所定の高速で定速駆動されるように構成すれば、刈取搬送部3の刈取装置9や穀稈搬送装置12などとともに高速になり過ぎることに起因して招く虞のある激しい騒音の発生などを未然に回避できる。 [7] The auxiliary conveyance device 46 may be configured to be shifted in synchronism with the shift of the vehicle speed together with the harvesting device 9 of the harvesting conveyance unit 3, the cereal conveyance device 12, and the like. For example, when the vehicle speed is within a predetermined very low speed region, the auxiliary transport device 46 is driven at a constant low speed regardless of the speed change of the vehicle, together with the mowing device 9 and the grain haul transport device 12 of the mowing transport unit 3. If the vehicle speed exceeds a predetermined very low speed range, the cutting and transporting can be achieved by shifting the speed in synchronization with the shifting of the vehicle speed together with the cutting device 9 and the culm transporting device 12 of the cutting and transporting unit 3. It is possible to avoid cutting failures, conveyance failures, and the like that may be caused due to excessively low speed together with the harvesting device 9 and the grain haul conveying device 12 of the unit 3. In addition, when the vehicle speed is equal to or lower than a predetermined high speed, the auxiliary transfer device 46 is shifted in synchronism with the speed change of the vehicle speed together with the cutting device 9 and the grain feeder 12 of the cutting transfer unit 3, and the vehicle speed is set to a predetermined value. If it is configured to be driven at a constant high speed at a predetermined high speed regardless of the speed change of the vehicle together with the harvesting device 9 of the harvesting conveyance unit 3 or the culm conveyance device 12 when exceeding the high speed, the harvesting of the harvesting conveyance unit 3 It is possible to avoid the generation of intense noise that may be caused by the excessive speed at the same time as the apparatus 9 and the grain feeder 12.
〔8〕補助搬送装置46を、脱穀装置4側からの動力で駆動するように構成してもよい。 [8] The auxiliary conveyance device 46 may be configured to be driven by power from the threshing device 4 side.
〔9〕補助搬送装置46を、その搬送終端側の支軸55が、フィードチェーン25の搬送始端部を支持する支軸57よりも穀稈搬送方向の下手側に位置する状態、又は、そのフィードチェーン25の支軸57と穀稈搬送方向で一致する状態に構成してもよい。 [9] The auxiliary transport device 46 is in a state where the support shaft 55 on the transport end side is located on the lower side in the grain transporting direction than the support shaft 57 that supports the transport start end portion of the feed chain 25, or in the feed You may comprise in the state which corresponds with the spindle 57 of the chain 25 in the grain conveying direction.
〔10〕補助搬送装置46の搬送終端位置P1とフィードチェーン25の搬送始端位置P2とを、補助搬送装置46の搬送終端側の支軸55とフィードチェーン25の搬送始端部を支持する支軸57との間以外の位置で、補助搬送装置46の搬送軌跡K1とフィードチェーン25の搬送軌跡K2とが交差する位置に設定してもよく、又、補助搬送装置46の搬送領域での搬送軌跡K1と、フィードチェーン25の搬送始端側での搬送軌跡K2とが接合する位置に設定してもよい。 [10] A conveyance end position P1 of the auxiliary conveyance device 46 and a conveyance start end position P2 of the feed chain 25, and a support shaft 57 that supports a conveyance end shaft 55 of the auxiliary conveyance device 46 and a conveyance start end portion of the feed chain 25. It may be set at a position where the conveyance locus K1 of the auxiliary conveyance device 46 and the conveyance locus K2 of the feed chain 25 intersect each other at a position other than the position between them. Also, the conveyance locus K1 in the conveyance region of the auxiliary conveyance device 46 may be set. May be set to a position where the feed path 25 is joined to the feed locus K2 on the feed start end side.
〔11〕補助搬送装置46の搬送領域での搬送軌跡K1とフィードチェーン25の搬送始端側での搬送軌跡K2とが一直線上に位置するように構成してもよい。 [11] The conveyance locus K1 in the conveyance region of the auxiliary conveyance device 46 and the conveyance locus K2 on the conveyance start end side of the feed chain 25 may be positioned on a straight line.
〔12〕下側係止搬送帯(右側係止搬送帯)77と上側係止搬送帯79との間に速度差を設けるようにしてもよい。例えば、下側係止搬送帯77の駆動速度に対して上側係止搬送帯79の駆動速度が少し速くなるように設定して、脱穀装置4に刈取穀稈を供給する際の搬送姿勢が、脱穀装置4への供給に適した穂先先行姿勢となるように構成してもよい。 [12] A speed difference may be provided between the lower latching transport band (right latching transport band) 77 and the upper latching transport band 79. For example, the conveying posture when supplying the harvested cereal meal to the threshing device 4 by setting the driving speed of the upper locking conveyance band 79 to be slightly faster than the driving speed of the lower locking conveyance band 77, You may comprise so that it may become a tip advance attitude | position suitable for the supply to the threshing apparatus 4. FIG.
コンバインの全体側面図Combine side view 刈取搬送部を作業位置に位置させた状態を示すコンバインの全体平面図Overall plan view of the combine showing the state where the cutting and conveying section is located at the work position 刈取搬送部をメンテナンス位置に位置させた状態を示すコンバインの全体平面図Overall plan view of the combine showing the state in which the cutting and conveying section is located at the maintenance position 刈取搬送部の概略平面図Schematic plan view of the cutting and conveying section 伝動系の概略図Schematic diagram of transmission system 刈取搬送部の支持構造及び刈取穀稈の受け渡し構造を示す要部の正面図Front view of the main part showing the support structure of the harvesting transport unit and the delivery structure of the harvested cereal meal 刈取搬送部を作業位置に位置させた状態を示す要部の平面図The top view of the principal part which shows the state which located the cutting conveyance part in the work position 刈取搬送部をメンテナンス位置に位置させた状態を示す要部の平面図The top view of the principal part which shows the state which located the cutting conveyance part in the maintenance position 刈取搬送部の支持構造を示す要部の縦断側面図Longitudinal side view of the main part showing the support structure of the cutting and conveying section 下降規制部材の作用を示す要部の縦断側面図Longitudinal side view of the main part showing the action of the lowering restricting member ホルダの作用を示す要部の縦断側面図Longitudinal side view of the main part showing the action of the holder シリンダの連結構造を示す要部の側面図Side view of the main part showing the cylinder connection structure シリンダの連結構造を示す要部の縦断背面図Longitudinal rear view of main part showing cylinder connection structure 刈取穀稈の受け渡し構造を示す要部の縦断側面図Longitudinal side view of the main part showing the delivery structure 穂先2段搬送構造を示す要部の平面図Plan view of the main part showing the two-stage tip transport structure 従来の穂先搬送構造を示す要部の概略平面図Schematic plan view of the main parts showing a conventional tip transfer structure
符号の説明Explanation of symbols
4 脱穀装置
12 穀稈搬送装置
24 受入口
25 フィードチェーン
38 挟持搬送機構
39 係止搬送機構
46 補助搬送装置
77 下側係止搬送帯
79 上側係止搬送帯
4 Threshing Device 12 Grain Transporting Device 24 Receiving Port 25 Feed Chain 38 Clamping Transport Mechanism 39 Locking Transport Mechanism 46 Auxiliary Transport Device 77 Lower Locking Transport Band 79 Upper Locking Transport Band

Claims (3)

  1. 刈取穀稈の株元側を挟持搬送する挟持搬送機構と、刈取穀稈の穂先側を係止搬送する係止搬送機構とを備えて、刈取穀稈を起立姿勢から横倒れ姿勢に向けて姿勢変更しながら搬送する穀稈搬送装置を構成し、横倒れ姿勢に姿勢変更された刈取穀稈の株元側を挟持搬送する縦回し式のフィードチェーンと、横倒れ姿勢に姿勢変更された刈取穀稈の穂先側を受け入れる受入口とを備える脱穀装置を搭載してあるコンバインの刈取穀稈搬送構造であって、
    前記係止搬送機構の搬送終端側を、刈取穀稈の穂先側における株元寄り部分を係止搬送する下側係止搬送帯と、刈取穀稈の穂先側における穂先寄り部分を係止搬送する上側係止搬送帯とを備える2段搬送構造に構成してあるコンバインの刈取穀稈搬送構造。
    Equipped with a nipping and conveying mechanism for nipping and conveying the stock side of the harvested cereal rice cake, and a locking and conveying mechanism for engaging and conveying the tip side of the harvested cereal rice cake, and the posture of the harvested cereal rice cake from the standing posture to the sideways posture A vertical feed chain that holds and transports the stock side of the harvested cereal rice cake that has been changed to a sideways posture, and a chopped grain that has been changed to a sideways posture A harvested corn straw transporting structure for a combine equipped with a threshing device having a receiving port for receiving the tip side of the straw,
    On the conveyance end side of the latch conveyance mechanism, the lower latch conveyance band that latches and conveys the stock-side portion on the cutting edge side of the harvested cereal pod, and the nail-feeding portion on the tip side of the harvested corn straw Combine harvester grain transport structure configured in a two-stage transport structure including an upper locking transport belt.
  2. 刈取穀稈の株元側を前記挟持搬送機構から前記フィードチェーンに受け渡す縦回し式の補助搬送装置を装備してある請求項1に記載のコンバインの刈取穀稈搬送構造。   2. The harvested corn straw transport structure for a combine according to claim 1, further comprising a vertical rotation type auxiliary transport device for transferring the stock side of the harvested cereal straw from the clamping transport mechanism to the feed chain.
  3. 前記下側係止搬送帯と前記上側係止搬送帯とを等速駆動してある請求項1又は2に記載のコンバインの刈取穀稈搬送構造。   The combine harvesting cereal conveyance structure of the combine according to claim 1 or 2, wherein the lower locking conveyance band and the upper locking conveyance band are driven at a constant speed.
JP2003377616A 2003-11-06 2003-11-06 Structure for conveying reaped grain culm for combine harvester Pending JP2005137279A (en)

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JP2003377616A JP2005137279A (en) 2003-11-06 2003-11-06 Structure for conveying reaped grain culm for combine harvester

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JP2003377616A JP2005137279A (en) 2003-11-06 2003-11-06 Structure for conveying reaped grain culm for combine harvester

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Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009148198A (en) * 2007-12-20 2009-07-09 Yanmar Co Ltd Combine harvester
JP2010104261A (en) * 2008-10-28 2010-05-13 Kubota Corp Grain culm-conveying structure for head-feeding combine harvester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009148198A (en) * 2007-12-20 2009-07-09 Yanmar Co Ltd Combine harvester
JP2010104261A (en) * 2008-10-28 2010-05-13 Kubota Corp Grain culm-conveying structure for head-feeding combine harvester

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