JP2004017922A - Travel vehicle - Google Patents

Travel vehicle Download PDF

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Publication number
JP2004017922A
JP2004017922A JP2002179826A JP2002179826A JP2004017922A JP 2004017922 A JP2004017922 A JP 2004017922A JP 2002179826 A JP2002179826 A JP 2002179826A JP 2002179826 A JP2002179826 A JP 2002179826A JP 2004017922 A JP2004017922 A JP 2004017922A
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JP
Japan
Prior art keywords
frame
traveling
traveling crawler
machine
track frame
Prior art date
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JP2002179826A
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Japanese (ja)
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JP4071556B2 (en
Inventor
Toshinori Kirihata
桐畑 俊紀
Koichi Kajiwara
梶原 康一
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Yanmar Co Ltd
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Yanmar Agricultural Equipment Co Ltd
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Publication date
Application filed by Yanmar Agricultural Equipment Co Ltd filed Critical Yanmar Agricultural Equipment Co Ltd
Priority to JP2002179826A priority Critical patent/JP4071556B2/en
Publication of JP2004017922A publication Critical patent/JP2004017922A/en
Application granted granted Critical
Publication of JP4071556B2 publication Critical patent/JP4071556B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To perform processing by fixing a rolling fulcrum boss 49 to a small shaped mounting member 79, to reduce the processing cost and to improve workability or the like by processing before mounting to a large shaped chassis 45. <P>SOLUTION: In the travel vehicle provided with a travel crawler 2 through a track frame 1, the rolling fulcrum boss 49 of the horizontally controllable travel crawler 2 is installed on the chassis 45 in the state fixed to the mounting member 79. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は例えば圃場の穀稈を連続的に刈取って脱穀するコンバインまたはトラクタなどの走行車に関する。
【0002】
【発明が解決しようとする課題】
従来、特開平1−28079号公報に示す如く、駆動スプロケット及びアイドルローラに支持させる左右走行クローラを左右トラックフレームにトラックローラを介して装設させると共に、本機にクローラ昇降アームを介して左右トラックフレームを昇降制御動作自在に設け、本機の左右傾斜を修正して昇降に支持させる技術がある。しかし乍ら、前記従来技術は、本機昇降支点ボスの加工、クローラ昇降アームの組立性、ストッパ構造、アイドラリンクの組立性、スイングアームの組立性、転輪ボスの修理などにおいて問題がある。
【0003】
【課題を解決するための手段】
然るに、本発明は、トラックフレームを介して走行クローラを装設させる走行車において、水平制御可能な走行クローラの本機昇降支点ボスを取付け部材に固定させた状態でシャーシに設けるもので、例えばプッシュまたはシールを挿入するように本機昇降支点ボスを溶接固定後に加工する必要があるが、小形状の取付け部材に本機昇降支点ボスを固定させて加工を行い得、大形状のシャーシに取付ける前の加工によって加工コストの低減並びに作業性の向上などを行い得るものである。
【0004】
また、請求項2の如く、トラックフレームを介して走行クローラを装設させる走行車において、走行クローラのアイドルローラを支えるアイドラフレームのストッパをトラックフレームに設けるもので、アイドラフレームなどの組立て時にストッパの位置決めにより、本機昇降シリンダ等との連結組立を高精度で行い得、例えば本機側から支える構造に比べてトラックフレームに設けるストッパをコンパクトで簡単に構成し得、水平制御用の前後のストッパに荷重を分担させることにより、前後の水平制御用アーム及び連結ロッドに過大な力が作用するのを防止し得るものである。
【0005】
また、請求項3の如く、トラックフレームを介して走行クローラを装設させる走行車において、走行クローラのアイドルローラを支えるアイドラフレームのアイドラリンクと、本機昇降シリンダに連結させるスイングアームとを、テーパ形状の軸に設けるもので、例えばスイングアームの作動トルクがスプラインによりアイドラリンクに伝わる構造では、アイドラリンクを組付ける2本の軸の軸芯を一致させる必要があるが、スプライン連結は加工精度が低いと組付けが困難になるも、テーパ形状の軸を用いてくさび効果によりトルクを適正に伝え乍ら、取付け角度を問題にすることなく、アイドラリンクを組付け得、組立て作業性を向上させ得るものである。
【0006】
また、請求項4の如く、トラックフレームを介して走行クローラを装設させる走行車において、本機昇降シリンダに連結させるスイングアームと、スイングアームを支える本機昇降支軸とを、切欠を有するスプラインを介して設けるもので、単なるスプラインでは誤組し易く位置の確認が面倒で組み立て作業性が悪くなるが、切欠を合せることによってスプラインの組付け位置を確認し得、組立作業性を向上させ得、しかもポンチマークを併用することによって組立性をさらに向上させ得るものである。
【0007】
また、請求項5の如く、トラックフレームを介して走行クローラを装設させる走行車において、走行クローラを支える転輪のボスをトラックフレームに着脱自在に締結させるもので、仮りにボスが損傷してもボスだけの交換により修理を行い得、トラックフレーム前部の交換に比べて修理費用を軽減し得、しかも転輪単体で組立を行えて油漏れ等の組立時のチェック等がやり易く、組立て途中に不具合が生じても少ない工数で適正に修復し得るものである。
【0008】
【発明の実施の形態】
以下、本発明の実施例を図面に基づいて詳述する。図1はコンバインの全体の斜視図、図2は同右側面図、図3は平面説明図であり、図中1は左右一対の走行クローラ2を装設する左右一対のトラックフレーム、3は前記の左右トラックフレーム1に架設する機台、4はフィードチェン5を左側に張架し扱胴6及び処理胴を内蔵している脱穀機である脱穀部、7は引起機構8及び刈刃9及び穀稈搬送機構10などを備える刈取部、11は刈取フレーム12を介して刈取部7を昇降させる油圧昇降シリンダ、13は排藁チェン14終端を臨ませる排藁処理部、15は脱穀部4からの穀粒を揚穀筒を介して搬入する穀物タンク、16・17は前記タンク15の穀粒を機外に搬出する排出オーガ、18は運転操作ハンドル19及び運転席20を備える運転キャビン、21は運転キャビン18下方に設けるエンジンであり、連続的に穀稈を刈取って脱穀するように構成している。
【0009】
さらに、図4、図5に示す如く、機台3前側で左右の走行クローラ2の間にミッションケース22を配設させ、ミッションケース22とエンジン21を略直列に前後に設け、ミッションケース22を介して走行クローラ2にエンジン21の駆動力を伝えると共に、脱穀部4前側の機台3上面に左右の支持台23・24を立設させ、支持台23・24に刈取フレーム12を介して刈取部7を昇降自在及び横移動可能に設ける。また、支持台23・24後側の機台3上面にカウンタケース25を設け、脱穀部4及び刈取部7にカウンタケース25を介してエンジン21の駆動力を伝える。
【0010】
さらに、ミッションケース22側方の機台3にキャビン前フレーム26を立設させ、キャビン18のステップフレーム27前部を前フレーム26上部に回動支点軸28を介して設け、支点軸28回りにキャビン18を前方に回動自在に支持させると共に、右の支持台24に左のキャビン後フレーム29を立設させ、機台3に立設させる右のキャビン後フレーム30との間の機台3上面にエンジン21を設け、エンジン21をエンジンルームカバー31で覆う。また、前記カバー31の上方で左右の後フレーム29・30上部をキャビン横フレーム32によって連結させ、キャビン横フレーム32にフックレバー33を設け、キャビン18のステップフレーム27後部を横フレーム32に上載させてフックレバー33により係脱自在に固定させると共に、右の支持台24と前フレーム26の間に水平連結フレーム34を固定させ、水平連結フレーム34中間と横フレーム32中間に傾斜連結フレーム35を固定させ、連結フレーム34・35によってフレーム剛性を確保する。また、左の後フレーム29にオーガ支柱36を連結させてオーガレスト37を設け、昇降及び旋回自在に設ける排出オーガ17をオーガレスト37の本機収納位置に支持させる。
【0011】
さらに、図6乃至図15に示す如く、前記機台3前側のミッションケース22に車軸ケース38を介して取付ける駆動スプロケット39と、前記トラックフレーム1に取付ける複数の転輪40及び可動ローラ41及びアイドルローラ42と、本機シャーシ45に取付けるキャリヤローラ43とを備え、トラックフレーム1に走行クローラ2の接地側を張設させると共に、トラックフレーム1後部に取付けるテンションフレーム44にアイドラフレーム46を介してアイドルローラ42を設け、トラックフレーム1に走行クローラ2を装設させる。
【0012】
また、前記機台3下面に一対の左右本機シャーシ45を前後クロスメンバ47と横フレーム48によってを固定させ、左右本機シャーシ45の前後方向延設両端部に前後本機昇降支点ボス49を固定させ、前後本機昇降支軸50をボス49に回転自在に軸支させ、左右一対で前後略同一形状の側面視L形になるように上下スイングアーム51・52を前記支軸50両端部に固定させ、前記トラックフレーム1に回転自在に軸支させる受軸53に下スイングアーム52の後端側を連結させ、前後方向に延設させる連結部材54両端に前後の上スイングアーム51の上端側を連結させ、連結部材54の中間に油圧本機昇降シリンダ55を設け、本機昇降シリンダ55の油圧力によって連結部材54を前後に押引動作させ、左右一対の前後スイングアーム51・52を介して左右トラックフレーム1を機台3に対して各別に昇降自在に取付ける。
【0013】
さらに、図16乃至図26に示す如く、前記テンションフレーム44後方にテンションボルト56操作によりアイドラフレーム46を出入させる半固定テンション調節によって走行クローラ2のテンションを設定するもので、本機昇降シリンダ55によって前後スイングアーム51・52を支軸50回りに揺動させ、各ローラ40・41・42とトラックフレーム1を昇降させ、走行クローラ2の接地側を昇降させるもので、運転キャビン18に設ける昇降調節スイッチの手動操作、並びに機台5の左右傾動を検出する傾斜センサの検出結果に基づく自動制御などにより、左右昇降シリンダ55を各別に作動させ、左右走行クローラ2の接地高さを変更して機台3の左右傾斜を修正して略水平に支持させるように構成している。
【0014】
また、前記トラックフレーム1後部に前後アイドラリンク57・58を介しテンションフレーム44を前後方向移動自在に連結させ、トラックフレーム1後端側上面に形成する後下り斜面の上方にアイドラフレーム46を設けるもので、トラックフレーム1の後部両側に貫通させる受軸53及びリンク軸59に前後アイドラリンク57・58を介しテンションフレーム44両側の枢支軸60・61を連結させている。
【0015】
そして、前記昇降シリンダ35を駆動してスイングアーム52を下方に回転させ、トラックフレーム1を下方前方に移動させ、走行クローラ2接地側を下方前方に移動させ、機台3の地上高を高くすると共に、前アイドラリンク57によって、テンションフレーム44前側をトラックフレーム1から持上げ、後アイドラリンク58を後方に傾倒させ、テンションフレーム44とアイドラフレーム46をトラックフレーム1の後下り斜面方向に傾けて下降させ、テンションフレーム44後部のアイドルローラ42を下降させてトラックフレーム1に対して後方下方に移動させ、トラックローラ1後方に走行クローラ2の前後方向接地幅を拡大させ、走行クローラ2の接地長を後方に延長させることによって、走行クローラ2接地側の前後方向の機体重心移動を少なくし、走行クローラ2後部の土中沈下を防ぎ、しかも走行クローラ2接地面の拡大により単位面積当りの接地圧を低下させ、走行クローラ2の土中沈下を少なくする。
【0016】
さらに、トラックフレーム1を介して走行クローラ2を装設させる走行車において、トラックフレーム1を、前部と中央部と後部とに、分離自在に分割し、トラックフレーム1を部分的に分離して交換し、修理費用などを低減させると共に、トラックフレーム1を分割して運搬作業を行えて輸送コスト低減及び取扱い性向上などを行う。また、トラックフレーム1を形成する中央フレーム62に、前フレーム63と後フレーム64を着脱自在に締結させ、前後フレーム63・64を中央フレーム62にボルト65だけで固定させ、トラックフレーム1の構成部品数を低減させて軽量化及びコスト低下を図る。
【0017】
また、図23乃至図28の如く、中央フレーム62を端面門形に形成し、前後フレーム63・64を中央フレーム62の門形内部に挾み込み、側方と上方の2方向から複数のボルト65を締付け、中央フレーム62前側に前フレーム63後側を着脱自在に固定させ、中央フレーム62後側に後フレーム64前側を着脱自在に固定させ、例えば締付用ステー等を不要にして構成部品数を少なくし、軽量化及びコスト低下を行えると共に、側方からのボルト65締付けによる摩擦力と上方からのボルト65締付けによる引張り力とにより、少ないボルト65本数で中央フレーム62に前後フレーム63・64を固定できる。
【0018】
また、走行クローラ2を水平制御自在に支持させる前本機昇降支軸53を前フレーム63に設け、後本機昇降支軸53を後フレーム64に設け、走行クローラ2の水平制御用の部品を前側と後側に分けて各別に組立及び分解させ、製造及びメンテナンス等の作業性の向上を図ると共に、前本機昇降支軸53回りに前及び中央フレーム62・63を回動可能に設け、前フレーム63に中央フレーム62を固定させた状態で、後フレーム64の組付けまたは取外しを行い、例えば中央フレーム62に後フレーム64を挾込む取付け構造の採用並びに後フレーム64の脱着作業性の向上などを図るもので、後フレーム64を中央フレーム62に挾込む構成であるから、後フレーム64を組付けるとき、または後フレーム64を取外すとき、前本機昇降支軸53回りに中央フレーム62を回動させることにより、後フレーム64の組付けまたは取外し作業性が良い。また、中央フレーム62と後フレーム64のボルト65締付部を長穴または遊嵌(バカ)穴にすることにより、前後本機昇降支軸53間の距離が本機側シャーシ45の製作精度によって変化しても、前記各支軸53の軸間距離の誤差を長穴(バカ穴)によって調整できる。
【0019】
また、図27乃至図29に示す如く、トラックフレーム1に走行クローラ2を支持させる転輪40に複数の油穴66を設け、一方の油穴66を用いて給油または排油させるときに他方の油穴66を空気抜き用などに使用し、給油または排油作業をスムーズに行い、例えば転輪40の軸芯を中心とする円周上に各油穴66を角度をもたせて配置させることにより、給油量を確認する給油口として油穴66を利用するもので、前後フレーム63・64にボス67を溶接固定させ、ボス67にベアリング68及びオイルシール69を介してローラ軸70を回転自在に軸支させ、ローラ軸70に転輪40を固定させると共に、前記油穴66をプラグ71によって開閉自在に塞ぐ。そして、図29の如く、2つの油穴66を約90度乃至180度の間隔で角度をもたせて配置させ、2つの油穴66をローラ軸70よりも高く位置させ、一方の油穴66から注油し、もう一方の油穴66を検油口として利用して給油作業を行う一方、一方の油穴66をローラ軸70の略直下に位置させ、もう一方の油穴66をローラ軸70よりも高く位置させ、ローラ軸70下方の油穴66から内部の油を排出させ、ローラ軸70上方の油穴66を通気口として利用してオイル抜き作業を行う。なお図37のように、ベアリング68を一対に増設させて転輪40の軸70をダブルベアリング構造とし、前側から1番目(最前)と4番目(中央)と7番目(最後)の転輪40をダブルベアリング68によって支持させ、市場での交換性を改善すると共に、1番目(27番目)の最前(と最後)の転輪40に作用する前進(及び後進)時の停止による動慣性力に対する剛性と、4番目の中央の転輪40に作用する畦越え時の荷重に対する剛性を確保する。
【0020】
また、図15、図27に示す如く、走行クローラ2上方の機台3に合成ゴム板製のクローラガード72を設け、長方形のガード72の一方の長辺を機台3のステー73にボルト固定させ、前記ガード72のもう一方の長辺側を走行クローラ2の非接地側の外周に突設させると共に、前記ガード72の前後の短辺側に斜隅部74を形成し、斜隅部74の前後方向の切り落し寸法を左右方向の切り落し寸法よりも大きく形成し、泥よけ用のクローラガード72に泥などが載って下方に垂れ下がっても、斜隅部74が走行クローラ2の外周縁に斜めに接触し、走行クローラ2との接触によってクローラガード72が引張れて損傷するのを防ぐ。
【0021】
さらに、図17、図21、図30に示す如く、前本機昇降支点のボス49をファイナル受ステー79に溶接75固定させ、その後、ブッシュ用挿入溝76及びシール用挿入溝77を汎用の工作機械で加工してボス49の内孔に形成し、その後、前記ステー79を本機側シャーシ45に溶接78固定させ、ボス49の溶接75によって溝76・77が歪む不具合をなくせるもので、トラックフレーム1を介して走行クローラ2を装設させる走行車において、水平制御可能な走行クローラ2の本機昇降支点ボス49を取付け部材であるステー79に固定させた状態でシャーシ45に設け、例えばプッシュまたはシールを挿入するように本機昇降支点ボス49を溶接固定後に加工する必要があるが、小形状のステー79に本機昇降支点ボス49を固定させて加工を行い、大形状のシャーシ45に取付ける前の加工によって加工コストの低減並びに作業性の向上などを行う。なお、前記ステー79の前側にファイナル受80を設け、ファイナル受80に車軸ケース38を固定させる。
【0022】
さらに、図23乃至図25、図31に示す如く、ターンバックル81付きの伸縮調節ロッド82後端にシリンダ受板83を固定させて前記連結部材54を構成し、前記ロッド82及びシリンダ受板83を前後スイングアーム51上端に軸84・85を介して連結させると共に、前記機台3に固定させるブラケット86に軸87を介して本機昇降シリンダ55を取付け、本機昇降シリンダ55のピストンロッド88先端をシリンダ受板83に軸89を介して連結させ、シリンダ55のピストンロッド88の軸芯延長線上に各軸85・87・89を設け、ピストンロッド88の伸張力がシリンダ受板83に圧縮力として作用して変形させるのを防ぎ、かつシリンダ受板83の小型軽量化などを行えるように構成している。
【0023】
また、前記ピストンロッド88に固定するボルト90と、シリンダ受板83に軸89を介して連結させるナット体91と、緩み止めナット92とを、アジャスト機構93に備え、ナット92を介してナット体91に螺出入自在に螺着させるもので、トラックフレーム1を介して走行クローラ2を装設させる走行車において、本機昇降シリンダ55のピストンロッド88先端に、取付け位置を調節するアジャスト機構93を設け、水平制御用のスイングアーム51と前記ピストンロッド88の連結位置がスイングアーム51と機体側のストッパ94・95によって決定される構造では、ストッパ94・95によって略全荷重を支える必要があるが、アジャスト機構93の調整によってシリンダ55とストッパ94・95とに荷重を分割して負担させ、組立作業性及び組立精度などを向上させる。
【0024】
さらに、前側のスイングアーム51・52のストッパ94は、前側の下スイングアーム52に当接させるようにシャーシ45に設けると共に、後側のスイングアーム51・52のストッパ95は、トラックフレーム1の後フレーム64に設けて、テンションフレーム44に当接させるもので、トラックフレーム1を介して走行クローラ2を装設させる走行車において、走行クローラ2のアイドルローラ42を支えるアイドラフレーム46のストッパ95をトラックフレーム1に設け、アイドラフレーム46などの組立て時にストッパ95の位置決めにより、本機昇降シリンダ55等との連結組立を高精度で行い、例えば本機側から支える構造に比べてトラックフレーム1に設けるストッパ95をコンパクトで簡単に構成し、水平制御用の前後のストッパ94・95に荷重を分担させることにより、前後の水平制御用スイングアーム51・52及び連結ロッド82に過大な力が作用するのを防止する。
【0025】
さらに、図25、図32に示す如く、トラックフレーム1を介して走行クローラ2を装設させる走行車において、走行クローラ2のアイドルローラ42を支えるアイドラフレーム46のアイドラリンク57と、本機昇降シリンダ55に連結させるスイングアーム52とを、テーパ形状の軸53一側部に設け、例えばスイングアーム52の作動トルクがスプライン96によりアイドラリンク57に伝わる構造では、アイドラリンク57を組付ける2本の軸53・60の軸芯を一致させる必要があるが、スプライン96連結は加工精度が低いと組付けが困難になるも、テーパ形状の軸53を用いてくさび効果によりトルクを適正に伝え乍ら、取付け角度を問題にすることなく、アイドラリンク57を組付け、組立て作業性を向上させる。
【0026】
また、図31に示す如く、トラックフレーム1を介して走行クローラ2を装設させる走行車において、本機昇降シリンダ55に連結させるスイングアーム51のボス49と、スイングアーム51を支える本機昇降支軸50とを、切欠97を有するスプライン96を介して設け、単なるスプラインでは誤組し易く位置の確認が面倒で組み立て作業性が悪くなるが、切欠97を合せることによってスプライン96の組付け位置を確認し、組立作業性を向上させ、しかもポンチマーク98を併用することによって組立性をさらに向上させる。
【0027】
また、図26に示す如く、トラックフレーム1を介して走行クローラ2を装設させる走行車において、走行クローラ2を支える転輪40のボス67を設ける前後フレーム63・64をトラックフレーム1の中央フレーム62に着脱自在に締結させ、仮りにボス67が損傷してもボス67を設ける前後フレーム63・64だけの交換により修理を行え、トラックフレーム1前部の交換に比べて修理費用を軽減し、しかも転輪40単体で組立を行えて油漏れ等の組立時のチェック等がやり易く、組立て途中に不具合が生じても少ない工数で適正に修復できる。
【0028】
さらに、図25、図33に示す如く、トラックフレーム1を介して走行クローラ2を装設させ、走行クローラ2を支えるアイドルローラ42をトラックフレーム1にアイドラフレーム46を介して設け、走行クローラ2の水平制御動作によってアイドラフレーム46を揺動させる走行車において、機体最下げ状態でトラックフレーム1とアイドラフレーム46の間に隙間99を設け、トラックフレーム1とアイドラフレーム46間の泥抜けが良好に行われ、小石などが挾っても押しつぶされることなく、泥土の付着による不具合または小石の噛込みによる損傷などを防止し、アイドラフレーム46を適正に支持して水平制御動作をスムーズに行わせる。
【0029】
また、トラックフレーム1とアイドラフレーム46間の隙間99にスクレーパ100を設け、トラックフレーム1とアイドラフレーム46の間に泥土または石などが侵入するのをスクレーパ100によって阻止し、アイドラフレーム46などの水平制御動作を適正に維持すると共に、前記テンションフレーム44下方のトラックフレーム1の上面に一定長さの開口101を形成して、昇降制御によってトラックフレーム1とテンションフレーム44との間が開放されて泥や石などが入り込んでも、これら泥や石などを開口101から下方に落下させて昇降制御不良となるなどの不都合を防止するように構成している。また、前記スクレーパ100は四角形の鉄板で形成し、テンションフレーム44の軸102にスクレーパ100の一側端部を回転自在に支持させ、スクレーパ100の他側端部をトラックフレーム1の前方に向けて延設させて自重でフレーム1上面に摺接させる。なお、スクレーパ100をフレーム1上面にバネによって弾圧させてもよい。
【0030】
また、図30、図38に示す如く、トラックフレーム1を介して走行クローラ2を装設させる走行車において、トラックフレーム1を支えるシャーシ45の前後本機昇降支点ボス49配置部に前後クロスメンバ47を設け、機体重量を支えるシャーシ45の剛性を向上させる補強を簡単な構造で行い、例えば前本機昇降支点ボス49周りに補強板であるファイナル受ステー79を固定して前クロスメンバ47とシャーシ45の連結部などの機体強度を向上させるもので、ファイナル受80を設けるファイナル受ステー79を、前本機昇降支点ボス49の取付具、並びに前クロスメンバ47の補強材として兼用し、軽量化及びコスト低減を図る。さらに、後クロスメンバ47と横フレーム48を連結させる補強板である後ステー179に後本機昇降支点ボス49を溶接固定させた後、ボス49を加工して溝76・77を形成し、その後、クロスメンバ47とフレーム48にステー179を溶接固定させるもので、機台3後部並びに左右の本機シャーシ45後部を取付部材Aを介してクロスメンバ47と横フレーム48の2本の連結材によって連結させ、アイドルローラ42等を設けるトラックフレーム1後部の支持に必要な本機シャーシ45後側のボス49取付け強度を確保する。
【0031】
さらに、図27、図34に示す如く、トラックフレーム1を介して走行クローラ2を装設させる走行車において、走行クローラ2を支えるキャリアローラ43の機外側輪体103をボス部104と別体に形成して着脱自在に設け、キャリアローラ43の機外側輪体103を取外して走行クローラ2を着脱させ、キャリアローラ43の上方に走行クローラ2を持上げて着脱させる作業を不要にし、走行クローラ2の取外し取付け作業性を向上させるもので、本機側シャーシ45に軸体105の一側部を固定させ、軸体105の他側部にボス部104をベアリング106軸支させ、ボス部104と機内側輪体107を一体形成すると共に、ボス部104に機外側輪体103をインローで嵌込んで着脱自在にボルト108止め固定させる。そして、走行クローラ2を取外すとき、機外側輪体103を外すことにより、走行クローラ2の芯金109がキャリアローラ43に当接することがないから、芯金109がローラ外径部を乗り越えるように持上げる必要がなく、走行クローラ2を機外側にスライドさせるだけで脱着できる。また、輪体103とボス部104のインロー嵌合により、組立誤差を低減でき、かつボルト108の緩みを防止できる。
【0032】
さらに、図33に示す如く、前記テンションフレーム44前端外側にテンションボルト受け110を取外し自在に固定させ、前記アイドラフレーム46の前部内側に固設するナット受板111とボルト受け110間の略中央にテンションボルト56を配置させるもので、テンションボルト56の六角頭部112をボルト受け110の外側に突出させ、テンションボルト56に結合するナット113をナット受板111外面に当接させ、テンションフレーム44の内側面に外形を沿わせる4角板形の回り止め部材114をナット113に固設させ、ボルト受け110外側からのテンションボルト56の回転操作によってテンションフレーム44からアイドラフレーム46を伸縮させて、アイドルローラ42による走行クローラ2のテンションを調節するもので、前後対称の2つのナット113を回り止め部材114の両面に設け、組立時またはメンテナンス時、ナット113と回り止め部材114を前後いずれの向きに組付けてもよく、1つのナット113を部材114に設ける構造のように、向きを間違えて組付ける不具合がない。
【0033】
さらに、図35、図36はトラックフレーム1の変形例を示すもので、中央フレーム62と、前後フレーム63・64を、骨フレーム115により、溶接して一体に連結させるもので、トラックフレーム1全体を1部品として取扱う。
【0034】
【発明の効果】
以上実施例から明らかなように本発明は、トラックフレーム1を介して走行クローラ2を装設させる走行車において、水平制御可能な走行クローラ2の本機昇降支点ボス49を取付け部材79に固定させた状態でシャーシ45に設けるもので、例えばプッシュまたはシールを挿入するように本機昇降支点ボス49を溶接固定後に加工する必要があるが、小形状の取付け部材79に本機昇降支点ボス49を固定させて加工を行うことができ、大形状のシャーシ45に取付ける前の加工によって加工コストの低減並びに作業性の向上などを行うことができるものである。
【0035】
また、請求項2の如く、トラックフレーム1を介して走行クローラ2を装設させる走行車において、走行クローラ2のアイドルローラ42を支えるアイドラフレーム46のストッパ95をトラックフレーム1に設けるもので、アイドラフレーム46などの組立て時にストッパ95の位置決めにより、本機昇降シリンダ55等との連結組立を高精度で行うことができ、例えば本機側から支える構造に比べてトラックフレーム1に設けるストッパ95をコンパクトで簡単に構成でき、水平制御用の前後のストッパ94・95に荷重を分担させることにより、前後の水平制御用アーム51・52及び連結ロッド82に過大な力が作用するのを防止できるものである。
【0036】
また、請求項3の如く、トラックフレーム1を介して走行クローラ2を装設させる走行車において、走行クローラ2のアイドルローラ42を支えるアイドラフレーム46のアイドラリンク57と、本機昇降シリンダ55に連結させるスイングアーム52とを、テーパ形状の軸53に設けるもので、例えばスイングアーム52の作動トルクがスプライン96によりアイドラリンク57に伝わる構造では、アイドラリンク57を組付ける2本の軸53・60の軸芯を一致させる必要があるが、スプライン96連結は加工精度が低いと組付けが困難になるも、テーパ形状の軸53を用いてくさび効果によりトルクを適正に伝え乍ら、取付け角度を問題にすることなく、アイドラリンク57を組付けることができ、組立て作業性を向上させることができるものである。
【0037】
また、請求項4の如く、トラックフレーム1を介して走行クローラ2を装設させる走行車において、本機昇降シリンダ55に連結させるスイングアーム51と、スイングアーム51を支える本機昇降支軸50とを、切欠97を有するスプライン96を介して設けるもので、単なるスプラインでは誤組し易く位置の確認が面倒で組み立て作業性が悪くなるが、切欠97を合せることによってスプライン96の組付け位置を確認でき、組立作業性を向上させ得、しかもポンチマーク98を併用することによって組立性をさらに向上させることができるものである。
【0038】
また、請求項5の如く、トラックフレーム1を介して走行クローラ2を装設させる走行車において、走行クローラ2を支える転輪40のボス67をトラックフレーム1に着脱自在に締結させるもので、仮りにボス67が損傷してもボス67だけの交換により修理を行うことができ、トラックフレーム1前部の交換に比べて修理費用を軽減でき、しかも転輪40単体で組立を行えて油漏れ等の組立時のチェック等がやり易く、組立て途中に不具合が生じても少ない工数で適正に修復できるものである。
【図面の簡単な説明】
【図1】コンバインの全体斜視図。
【図2】同側面図。
【図3】同平面説明図。
【図4】機体前部の側面説明図。
【図5】同正面説明図。
【図6】機台の側面図。
【図7】同平面図。
【図8】同要部側面図。
【図9】同要部正面図。
【図10】同斜視図。
【図11】トラックフレーム部の平面図。
【図12】同底面斜視図。
【図13】本機シャーシの側面図。
【図14】同上面斜視図。
【図15】同平面図。
【図16】同側面説明図。
【図17】同要部側面図。
【図18】同要部平面図。
【図19】トラックフレームの分解図。
【図20】同上面斜視図。
【図21】同平面図。
【図22】同側面図。
【図23】本機昇降シリンダ部の側面図。
【図24】同前部拡大図。
【図25】同後部拡大図。
【図26】トラックフレームの分解説明図。
【図27】トラックフレーム部の断面正面図。
【図28】同下部拡大図。
【図29】転輪の説明図。
【図30】本機シャーシ前部の平面図。
【図31】本機昇降シリンダの取付け説明図。
【図32】スイングアームの取付け説明図。
【図33】テンションフレーム部の側面図。
【図34】キャリアローラ部の断面図。
【図35】変形例を示すトラックフレームの斜視図。
【図36】同分解図。
【図37】図28の変形例を示す説明図。
【図38】クロスメンバ部の平面図。
【符号の説明】
1  トラックフレーム
2  走行クローラ
40 転輪
42 アイドルローラ
45 本機シャーシ
46 アイドラフレーム
49 本機昇降支点ボス
50 本機昇降支軸
51 上スイングアーム
52 下スイングアーム
53 受軸
55 本機昇降シリンダ
57 アイドラリンク
67 ボス
79 ファイナル受ステー(取付け部材)
88 ピストンロッド
93 アジャスト機構
95 ストッパ
96 スプライン
97 切欠
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a traveling vehicle such as a combine or a tractor for continuously cutting and threshing grain culms in a field.
[0002]
[Problems to be solved by the invention]
Conventionally, as shown in Japanese Patent Application Laid-Open No. 1-28079, left and right traveling crawlers supported by a driving sprocket and an idle roller are mounted on left and right track frames via track rollers, and the left and right tracks of the machine are arranged via crawler lifting arms. There is a technology in which a frame is provided so as to be able to perform a vertical movement control, and a horizontal inclination of the machine is corrected to support the vertical movement. However, the above-mentioned prior art has problems in processing the fulcrum boss of the machine, assembling the crawler elevating arm, assembling the stopper structure, assembling the idler link, assembling the swing arm, and repairing the wheel boss.
[0003]
[Means for Solving the Problems]
However, the present invention provides a traveling vehicle in which a traveling crawler is mounted via a track frame, and is provided on a chassis in a state in which the boss of the traveling crawler, which can be horizontally controlled, is fixed to a mounting member. Alternatively, it is necessary to machine the lifting fulcrum boss of this machine so as to insert a seal, but it can be processed by fixing the boss of this machine to a small mounting member, before mounting on a large chassis. The processing described above can reduce processing costs and improve workability.
[0004]
According to a second aspect of the present invention, in a traveling vehicle in which a traveling crawler is mounted via a track frame, a stopper of an idler frame for supporting an idle roller of the traveling crawler is provided on the track frame. By positioning, it is possible to connect and assemble with the machine lifting cylinder with high precision.For example, compared to the structure supported from the machine side, the stopper provided on the track frame can be configured compactly and easily, and the front and rear stoppers for horizontal control , It is possible to prevent an excessive force from acting on the front and rear horizontal control arms and the connecting rod.
[0005]
According to a third aspect of the present invention, in the traveling vehicle equipped with the traveling crawler via the track frame, an idler link of an idler frame supporting an idle roller of the traveling crawler and a swing arm connected to the lifting cylinder of the machine are tapered. For example, in a structure in which the operating torque of the swing arm is transmitted to the idler link by a spline, it is necessary to match the axes of the two shafts on which the idler link is assembled. If it is too low, it will be difficult to assemble, but the idler link can be assembled without making the mounting angle a problem, while properly transmitting the torque by the wedge effect using the tapered shaft, and improving the assembly workability. What you get.
[0006]
According to a fourth aspect of the present invention, in the traveling vehicle equipped with a traveling crawler via a track frame, a spline having a notch includes a swing arm connected to the lifting cylinder and a lifting shaft supporting the swing arm. A simple spline makes it easy to mistakenly assemble and it is troublesome to check the position.Assembling workability is deteriorated, but by aligning the notches, the spline assembling position can be checked and the assembling workability can be improved. In addition, assemblability can be further improved by using a punch mark together.
[0007]
According to a fifth aspect of the present invention, in a traveling vehicle in which a traveling crawler is mounted via a truck frame, a boss of a wheel supporting the traveling crawler is detachably fastened to the truck frame. Can be repaired by replacing only the boss, and the repair cost can be reduced compared to replacing the front part of the track frame.Furthermore, it is possible to assemble the wheel alone, making it easy to check for oil leakage etc. at the time of assembly. Even if a defect occurs on the way, it can be properly repaired with a small number of man-hours.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an overall perspective view of the combine, FIG. 2 is a right side view thereof, and FIG. 3 is an explanatory plan view. In FIG. 1, reference numeral 1 denotes a pair of left and right track frames on which a pair of left and right traveling crawlers 2 are mounted. And 4 is a threshing unit which is a threshing machine which stretches a feed chain 5 on the left side and has a built-in handling cylinder 6 and a processing cylinder. Reference numeral 7 denotes a raising mechanism 8 and a cutting blade 9. A mowing unit including a grain culm transport mechanism 10 and the like, 11 is a hydraulic lifting cylinder that raises and lowers the mowing unit 7 via a mowing frame 12, 13 is a straw processing unit that faces the end of a straw chain 14, and 15 is a threshing unit 4. A grain tank for carrying the grains of the tank 15 through a fryer, 16 and 17 a discharge auger for carrying the grains of the tank 15 out of the machine, 18 a driving cabin provided with a driving handle 19 and a driving seat 20, 21 Is installed below the driving cabin 18. That an engine is configured to threshing continuously harvests culms.
[0009]
Further, as shown in FIGS. 4 and 5, a transmission case 22 is disposed between the left and right traveling crawlers 2 in front of the machine base 3, and the transmission case 22 and the engine 21 are provided substantially in front of and behind the transmission case 22. In addition to transmitting the driving force of the engine 21 to the traveling crawler 2 via the thruster 4, the left and right support stands 23 and 24 are erected on the upper surface of the machine 3 in front of the threshing unit 4, and the support stands 23 and 24 are harvested via the cutting frame 12. The part 7 is provided so as to be able to move up and down and to move laterally. A counter case 25 is provided on the upper surface of the machine base 3 on the rear side of the support bases 23 and 24, and the driving force of the engine 21 is transmitted to the threshing unit 4 and the cutting unit 7 via the counter case 25.
[0010]
Further, the cabin front frame 26 is erected on the machine base 3 on the side of the transmission case 22, and the front portion of the step frame 27 of the cabin 18 is provided above the front frame 26 via the rotation fulcrum shaft 28. The cabin 18 is rotatably supported in the front, and the left support frame 29 is erected on the right support stand 24, and the gantry 3 between the right cabin frame 30 is erected on the machine 3. The engine 21 is provided on the upper surface, and the engine 21 is covered with the engine room cover 31. Further, the upper portions of the left and right rear frames 29 and 30 are connected to each other above the cover 31 by a cabin horizontal frame 32, a hook lever 33 is provided on the cabin horizontal frame 32, and the rear portion of the step frame 27 of the cabin 18 is mounted on the horizontal frame 32. And fixed by a hook lever 33 so as to be freely detachable, a horizontal connection frame 34 is fixed between the right support base 24 and the front frame 26, and an inclined connection frame 35 is fixed between the horizontal connection frame 34 and the horizontal frame 32. Then, the frame rigidity is secured by the connection frames 34 and 35. Further, an auger post 37 is provided by connecting an auger support 36 to the left rear frame 29, and the discharge auger 17 provided to be able to move up and down and rotate freely is supported at the storage position of the auger rest 37.
[0011]
Further, as shown in FIGS. 6 to 15, a drive sprocket 39 mounted on the transmission case 22 on the front side of the machine base 3 via an axle case 38, a plurality of rolling wheels 40, a movable roller 41 and idlers mounted on the track frame 1. A roller 42 and a carrier roller 43 attached to the chassis 45 of the machine are provided. The track frame 1 is provided with the ground side of the traveling crawler 2 stretched, and an idler frame 46 is attached to a tension frame 44 attached to the rear portion of the track frame 1 via an idler frame 46. The roller 42 is provided, and the traveling crawler 2 is mounted on the track frame 1.
[0012]
A pair of left and right main unit chassis 45 is fixed to the lower surface of the machine base 3 by front and rear cross members 47 and horizontal frames 48, and front and rear main unit lifting fulcrum bosses 49 are provided at both ends of the left and right main unit chassis 45 extending in the front and rear direction. The upper and lower swing arms 51 and 52 are fixed at both ends of the support shaft 50 so that the front and rear swing shafts 50 are rotatably supported by the bosses 49 so that the left and right swing arms 51 and 52 are L-shaped in a side view having substantially the same shape in front and rear. The lower end of the lower swing arm 52 is connected to a receiving shaft 53 rotatably supported by the track frame 1 and the upper end of the front and rear upper swing arm 51 is connected to both ends of a connecting member 54 extending in the front-rear direction. And a hydraulic main unit elevating cylinder 55 is provided in the middle of the connecting member 54, and the hydraulic pressure of the main unit elevating cylinder 55 causes the connecting member 54 to be pushed and pulled back and forth, so that a pair of right and left swings Attached vertically movably to each other with respect to the right and left track frames 1 and machine bed 3 through the over arm 51, 52.
[0013]
Further, as shown in FIGS. 16 to 26, the tension of the traveling crawler 2 is set by adjusting the semi-fixed tension to move the idler frame 46 in and out by operating the tension bolt 56 behind the tension frame 44. The front and rear swing arms 51 and 52 are pivoted around the support shaft 50 to raise and lower the rollers 40, 41 and 42 and the track frame 1, and to raise and lower the ground contact side of the traveling crawler 2. The left and right lifting cylinders 55 are individually operated by manual operation of the switch and automatic control based on the detection result of the tilt sensor for detecting the left and right tilting of the machine base 5 to change the ground contact height of the left and right traveling crawlers 2. The left and right inclination of the table 3 is corrected so as to be supported substantially horizontally.
[0014]
Further, the tension frame 44 is connected to the rear portion of the track frame 1 via front and rear idler links 57 and 58 so as to be movable in the front-rear direction, and an idler frame 46 is provided above a rear downward slope formed on the upper surface on the rear end side of the track frame 1. Thus, the pivot shafts 60 and 61 on both sides of the tension frame 44 are connected to the receiving shaft 53 and the link shaft 59 penetrating the rear side of the track frame 1 via front and rear idler links 57 and 58.
[0015]
Then, the lift cylinder 35 is driven to rotate the swing arm 52 downward, thereby moving the track frame 1 downward and forward, and moving the traveling crawler 2 ground contact side downward and forward to increase the ground height of the machine base 3. At the same time, the front idler link 57 raises the front side of the tension frame 44 from the track frame 1, tilts the rear idler link 58 backward, and lowers the tension frame 44 and the idler frame 46 by tilting the track frame 1 backward and downward. Then, the idle roller 42 at the rear of the tension frame 44 is moved downward to move rearward and downward with respect to the track frame 1 so that the front-to-rear contact width of the traveling crawler 2 is increased behind the track roller 1 and the contact length of the traveling crawler 2 is rearward. To the front and rear of the traveling crawler 2 on the ground side. To reduce the weight center movement, preventing soil subsidence traveling crawler 2 rear, yet reduces the ground contact pressure per unit area by the expansion of the travel crawler second ground plane, reducing the soil subsidence traveling crawler 2.
[0016]
Further, in a traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1, the track frame 1 is divided into a front part, a center part, and a rear part so as to be separable, and the track frame 1 is partially separated. In addition to reducing replacement costs and repair costs, the truck frame 1 is divided for carrying work, thereby reducing transport costs and improving handling. The front frame 63 and the rear frame 64 are detachably fastened to the center frame 62 forming the track frame 1, and the front and rear frames 63, 64 are fixed to the center frame 62 with only the bolts 65. Reduce the number and weight and cost.
[0017]
Also, as shown in FIGS. 23 to 28, the central frame 62 is formed in an end gate shape, the front and rear frames 63 and 64 are sandwiched inside the gate shape of the central frame 62, and a plurality of bolts are provided from two sides and upward. 65, the rear side of the front frame 63 is detachably fixed to the front side of the central frame 62, and the front side of the rear frame 64 is detachably fixed to the rear side of the central frame 62. The number of bolts can be reduced, the weight and cost can be reduced, and the front and rear frames 63 and 65 can be attached to the central frame 62 with a small number of 65 bolts by the frictional force by tightening the bolts 65 from the side and the tensile force by tightening the bolts 65 from above. 64 can be fixed.
[0018]
Further, a front main body elevating support shaft 53 for supporting the traveling crawler 2 so as to be horizontally controllable is provided on the front frame 63, and a rear main body elevating support shaft 53 is provided on the rear frame 64, and components for horizontal control of the traveling crawler 2 are provided. The front and rear frames are separately assembled and disassembled to improve workability such as manufacturing and maintenance, and the front and center frames 62 and 63 are rotatably provided around the front main shaft elevating support shaft 53, With the center frame 62 fixed to the front frame 63, the rear frame 64 is assembled or removed. For example, an attachment structure that sandwiches the rear frame 64 on the center frame 62 is employed, and the workability of attaching and detaching the rear frame 64 is improved. The rear frame 64 is sandwiched by the center frame 62. Therefore, when assembling the rear frame 64 or removing the rear frame 64, the front frame By rotating the center frame 62 to the support shaft 53 around, assembling or dismounting of the rear frame 64 is good. Further, by making the bolt 65 tightening portions of the center frame 62 and the rear frame 64 long holes or loose fitting holes, the distance between the front and rear lifting shafts 53 of the front and rear of the machine depends on the manufacturing accuracy of the chassis 45 of the machine. Even if it changes, the error in the distance between the shafts 53 can be adjusted by the elongated hole (the stupid hole).
[0019]
Also, as shown in FIGS. 27 to 29, a plurality of oil holes 66 are provided in the rolling wheel 40 that supports the traveling crawler 2 on the track frame 1, and when one of the oil holes 66 is used to supply or drain oil, the other oil hole 66 is used. By using the oil holes 66 for air release and the like, the oil supply or drainage operation is performed smoothly, for example, by arranging each oil hole 66 at an angle on the circumference around the axis of the rolling wheel 40, An oil hole 66 is used as an oil supply port for checking the amount of oil supply. A boss 67 is fixed to the front and rear frames 63 and 64 by welding, and a roller shaft 70 is rotatably mounted on the boss 67 via a bearing 68 and an oil seal 69. The roller 40 is fixed to the roller shaft 70, and the oil hole 66 is closed and opened by a plug 71. Then, as shown in FIG. 29, the two oil holes 66 are arranged at an angle of about 90 degrees to 180 degrees at an interval, and the two oil holes 66 are positioned higher than the roller shaft 70. While lubricating and performing the lubrication operation using the other oil hole 66 as an oil inspection port, one oil hole 66 is positioned substantially directly below the roller shaft 70, and the other oil hole 66 is The oil is discharged from the oil hole 66 below the roller shaft 70 by using the oil hole 66 above the roller shaft 70 as a vent. As shown in FIG. 37, a pair of bearings 68 are added to make the shaft 70 of the rolling wheel 40 a double bearing structure, and the first (foremost), fourth (center), and seventh (last) rolling wheels 40 from the front side. Is supported by the double bearings 68 to improve interchangeability in the market and to reduce the dynamic inertia force caused by the forward (and reverse) stop acting on the first (27th) frontmost (and last) wheel 40. The rigidity and the rigidity with respect to the load applied to the fourth center wheel 40 when the ridge is crossed are secured.
[0020]
Also, as shown in FIGS. 15 and 27, a crawler guard 72 made of a synthetic rubber plate is provided on the machine base 3 above the traveling crawler 2 and one long side of the rectangular guard 72 is bolted to a stay 73 of the machine base 3. The other long side of the guard 72 protrudes from the outer periphery of the traveling crawler 2 on the non-ground side, and a beveled corner 74 is formed on the short sides before and after the guard 72. The cut-off dimension in the front-rear direction is made larger than the cut-out dimension in the left-right direction, and even if mud or the like falls on the crawler guard 72 for mudguard and hangs down, the beveled corner 74 is formed on the outer peripheral edge of the traveling crawler 2. The contact with the traveling crawler 2 obliquely prevents the crawler guard 72 from being pulled and damaged.
[0021]
Further, as shown in FIGS. 17, 21 and 30, the boss 49 of the lifting / lowering fulcrum of the front machine is fixed to the final receiving stay 79 by welding 75, and then the bush insertion groove 76 and the seal insertion groove 77 are attached to a general-purpose machine. It is machined and formed in the inner hole of the boss 49, and then the stay 79 is fixed to the main body side chassis 45 by welding 78 to eliminate the problem of the grooves 76 and 77 being distorted by the welding 75 of the boss 49. In a traveling vehicle on which the traveling crawler 2 is mounted via the track frame 1, the main body elevating fulcrum boss 49 of the traveling crawler 2 capable of horizontal control is provided on the chassis 45 in a state where it is fixed to a stay 79 as an attachment member. It is necessary to machine the lifting fulcrum boss 49 of this machine so as to insert a push or a seal after welding and fixing the boss 49 of this machine to a small stay 79. It is not carried out machining, performing such reduction and improvement in workability of the machining cost by machining prior to attachment to the chassis 45 of a large shape. A final receiver 80 is provided in front of the stay 79, and the axle case 38 is fixed to the final receiver 80.
[0022]
Further, as shown in FIG. 23 to FIG. 25 and FIG. 31, the cylinder receiving plate 83 is fixed to the rear end of the telescopic adjustment rod 82 with the turnbuckle 81 to constitute the connecting member 54, and the rod 82 and the cylinder receiving plate 83 Is connected to the upper end of the front and rear swing arm 51 via shafts 84 and 85, and the elevating cylinder 55 of the machine is mounted on a bracket 86 fixed to the machine base 3 via a shaft 87. The distal end is connected to the cylinder receiving plate 83 via a shaft 89, and the respective shafts 85, 87 and 89 are provided on an extension of the axis of the piston rod 88 of the cylinder 55, and the tension of the piston rod 88 is compressed on the cylinder receiving plate 83. The cylinder receiving plate 83 is configured to be prevented from being deformed by acting as a force, and to be made smaller and lighter.
[0023]
The adjusting mechanism 93 includes a bolt 90 fixed to the piston rod 88, a nut body 91 connected to the cylinder receiving plate 83 via a shaft 89, and a locking nut 92. In a traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1, an adjusting mechanism 93 for adjusting the mounting position is provided at the tip of a piston rod 88 of the machine elevating cylinder 55. In the structure in which the connecting position between the swing arm 51 for horizontal control and the piston rod 88 is determined by the swing arm 51 and the stoppers 94 and 95 on the machine body, it is necessary to support substantially the entire load by the stoppers 94 and 95. The load is divided into the cylinder 55 and the stoppers 94 and 95 by adjusting the adjustment mechanism 93. Thereby, improving and assembly workability and assembling accuracy.
[0024]
Further, the stoppers 94 of the front swing arms 51 and 52 are provided on the chassis 45 so as to abut on the front lower swing arm 52, and the stoppers 95 of the rear swing arms 51 and 52 are In a traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1, the stopper 95 of the idler frame 46 that supports the idle roller 42 of the traveling crawler 2 is provided on the frame 64 and abuts against the tension frame 44. The stopper 95 is provided on the frame 1, and the stopper 95 is positioned at the time of assembling the idler frame 46, etc., so that the assembling with the elevating cylinder 55 and the like is performed with high precision. 95 is compact and easy to construct, with front and rear for horizontal control By sharing the load to stopper 94, 95, excessive force before and after the horizontal control swing arm 51, 52 and the connecting rod 82 is prevented from acting.
[0025]
Further, as shown in FIGS. 25 and 32, in a traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1, an idler link 57 of an idler frame 46 for supporting the idle roller 42 of the traveling crawler 2, The swing arm 52 connected to the shaft 55 is provided on one side of the shaft 53 having a tapered shape. For example, in a structure in which the operating torque of the swing arm 52 is transmitted to the idler link 57 by a spline 96, two shafts on which the idler link 57 is assembled. Although it is necessary to match the axes of the shafts 53 and 60, the connection of the spline 96 is difficult to assemble if the processing accuracy is low. However, while the torque is appropriately transmitted by the wedge effect using the tapered shaft 53, The idler link 57 is assembled without making the mounting angle a problem, and the assembling workability is improved.
[0026]
As shown in FIG. 31, in a traveling vehicle equipped with the traveling crawler 2 via the track frame 1, a boss 49 of a swing arm 51 connected to a lifting cylinder 55 of the machine, and a lifting support of the machine supporting the swing arm 51. The shaft 50 is provided via a spline 96 having a notch 97, and a simple spline is liable to be erroneously assembled, and it is troublesome to confirm the position, and assembling workability is deteriorated. After confirmation, the assembling workability is improved, and the assembling workability is further improved by using the punch mark 98 together.
[0027]
Also, as shown in FIG. 26, in a traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1, the front and rear frames 63 and 64 in which the bosses 67 of the rolling wheels 40 supporting the traveling crawler 2 are provided are central frames of the track frame 1. Even if the boss 67 is damaged, repair can be performed by replacing only the front and rear frames 63 and 64 provided with the boss 67, and the repair cost is reduced as compared with the replacement of the front part of the track frame 1. In addition, the rolling wheel 40 can be assembled as a single unit, making it easy to check for oil leakage and the like at the time of assembly. Even if a problem occurs during the assembly, it can be properly repaired with a small number of man-hours.
[0028]
Further, as shown in FIGS. 25 and 33, the traveling crawler 2 is mounted via the track frame 1, and an idle roller 42 supporting the traveling crawler 2 is provided on the track frame 1 via an idler frame 46. In a traveling vehicle in which the idler frame 46 is swung by the horizontal control operation, a gap 99 is provided between the track frame 1 and the idler frame 46 in a state where the fuselage is at its lowest position, so that the mud between the track frame 1 and the idler frame 46 can be satisfactorily removed. Therefore, even if pebbles or the like are caught, they are not crushed, prevent problems due to adhesion of mud or damage due to pebbles, and properly support the idler frame 46 to smoothly perform the horizontal control operation.
[0029]
In addition, a scraper 100 is provided in a gap 99 between the track frame 1 and the idler frame 46 to prevent mud or stones from entering between the track frame 1 and the idler frame 46 by the scraper 100, and the In addition to maintaining the control operation properly, an opening 101 having a fixed length is formed on the upper surface of the track frame 1 below the tension frame 44, and the space between the track frame 1 and the tension frame 44 is opened by the elevation control so that the mud is opened. Even if stones or stones enter, it is configured to prevent such inconvenience that the mud or stones are dropped downward from the opening 101 to cause poor elevation control. The scraper 100 is formed of a square iron plate, and one end of the scraper 100 is rotatably supported on the shaft 102 of the tension frame 44, and the other end of the scraper 100 is directed forward of the track frame 1. It is extended and brought into sliding contact with the upper surface of the frame 1 by its own weight. Note that the scraper 100 may be elastically pressed on the upper surface of the frame 1 by a spring.
[0030]
As shown in FIGS. 30 and 38, in a traveling vehicle having the traveling crawler 2 mounted thereon via the track frame 1, a front / rear cross member 47 is provided on a chassis 45 supporting the truck frame 1 in a position where the front / rear fulcrum fulcrum boss 49 is disposed. Is provided with a simple structure to enhance the rigidity of the chassis 45 that supports the weight of the machine body. For example, a final receiving stay 79, which is a reinforcing plate, is fixed around the fulcrum boss 49 of the front machine, and the front cross member 47 and the chassis are fixed. 45 is used to improve the strength of the fuselage such as the connecting portion, and the final receiving stay 79 provided with the final receiving 80 is also used as a fixture for the front fulcrum lifting fulcrum boss 49 and a reinforcing material for the front cross member 47 to reduce the weight. And cost reduction. Further, after the rear machine lifting fulcrum boss 49 is fixed to the rear stay 179 which is a reinforcing plate for connecting the rear cross member 47 and the horizontal frame 48 by welding, the boss 49 is processed to form the grooves 76 and 77, and then The stay 179 is fixed to the cross member 47 and the frame 48 by welding, and the rear part of the machine base 3 and the rear parts of the left and right main body chassis 45 are fixed by two connecting members of the cross member 47 and the horizontal frame 48 via the mounting member A. The boss 49 on the rear side of the chassis 45 required for supporting the rear portion of the track frame 1 on which the idle rollers 42 and the like are connected is secured.
[0031]
Further, as shown in FIGS. 27 and 34, in a traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1, the outer wheel body 103 of the carrier roller 43 supporting the traveling crawler 2 is provided separately from the boss 104. The traveling crawler 2 is detached by removing the outer wheel body 103 of the carrier roller 43 and removing the traveling crawler 2 above the carrier roller 43, making the traveling crawler 2 unnecessary. In order to improve the detachability and mounting workability, one side of the shaft body 105 is fixed to the machine side chassis 45, the boss 104 is supported by the bearing 106 on the other side of the shaft 105, and the boss 104 and the machine The inner wheel body 107 is integrally formed, and the outer wheel body 103 is fitted into the boss portion 104 with a spigot, and the bolt 108 is removably fastened and fixed. When the traveling crawler 2 is removed, by removing the outer ring 103, the core 109 of the traveling crawler 2 does not contact the carrier roller 43. There is no need to lift, and the traveling crawler 2 can be detached simply by sliding it outside the machine. In addition, the fitting error between the wheel body 103 and the boss portion 104 can reduce an assembly error and prevent the bolt 108 from being loosened.
[0032]
Further, as shown in FIG. 33, a tension bolt receiver 110 is detachably fixed to the outside of the front end of the tension frame 44, and substantially the center between the nut receiving plate 111 and the bolt receiver 110 fixed inside the front part of the idler frame 46. The hexagonal head 112 of the tension bolt 56 protrudes out of the bolt receiver 110, and the nut 113 coupled to the tension bolt 56 is brought into contact with the outer surface of the nut receiving plate 111, so that the tension frame 44 is A square plate-shaped detent member 114 having an outer surface along the inner surface of the bolt is fixed to the nut 113, and the idler frame 46 is expanded and contracted from the tension frame 44 by rotating the tension bolt 56 from outside the bolt receiver 110. The tension of the traveling crawler 2 by the idle roller 42 Two nuts 113 symmetrical in the front-rear direction are provided on both surfaces of the detent member 114, and the nut 113 and the detent member 114 may be assembled in either front or rear direction during assembly or maintenance. Unlike the structure in which the member 113 is provided with the member 113, there is no problem that the member is assembled in a wrong direction.
[0033]
35 and 36 show a modified example of the track frame 1. In this embodiment, the central frame 62 and the front and rear frames 63 and 64 are integrally connected by welding with the bone frame 115. Is treated as one part.
[0034]
【The invention's effect】
As is apparent from the above embodiments, the present invention is directed to a traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1 by fixing the vertical fulcrum boss 49 of the traveling crawler 2 of the traveling crawler 2 to the mounting member 79. It is necessary to machine the lifting fulcrum boss 49 of this machine after welding and fixing it so that a push or a seal is inserted, for example. Processing can be performed while being fixed, and processing before attachment to the large-sized chassis 45 can reduce processing costs and improve workability.
[0035]
Further, in the traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1, a stopper 95 of the idler frame 46 for supporting the idle roller 42 of the traveling crawler 2 is provided on the track frame 1. By positioning the stopper 95 at the time of assembling the frame 46 and the like, the connecting assembly with the machine elevating cylinder 55 and the like can be performed with high precision. For example, the stopper 95 provided on the track frame 1 is more compact than the structure supported from the machine side. By applying a load to the front and rear stoppers 94 and 95 for horizontal control, it is possible to prevent an excessive force from acting on the front and rear horizontal control arms 51 and 52 and the connecting rod 82. is there.
[0036]
Further, in a traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1, the idler link 57 of the idler frame 46 supporting the idle roller 42 of the traveling crawler 2 and the lifting cylinder 55 of the machine are connected. The swing arm 52 to be provided is provided on the shaft 53 having a tapered shape. For example, in a structure in which the operating torque of the swing arm 52 is transmitted to the idler link 57 by a spline 96, the two shafts 53 and 60 for assembling the idler link 57 are provided. Although it is necessary to align the shaft cores, it is difficult to assemble the spline 96 connection if the processing accuracy is low. However, it is necessary to use the tapered shaft 53 to transmit the torque properly by the wedge effect and to reduce the mounting angle. , The idler link 57 can be assembled, and the assembling workability can be improved. Is shall.
[0037]
According to a fourth aspect of the present invention, in a traveling vehicle equipped with the traveling crawler 2 via the track frame 1, a swing arm 51 connected to the machine elevating cylinder 55, and a machine elevating support shaft 50 for supporting the swing arm 51 are provided. Is provided via a spline 96 having a notch 97, and a simple spline is liable to be erroneously assembled, which makes it difficult to confirm the position and deteriorates the assembling workability. However, the fitting position of the spline 96 is confirmed by aligning the notch 97. Thus, assembling operability can be improved, and the assembling operability can be further improved by using the punch mark 98 in combination.
[0038]
Further, in a traveling vehicle in which the traveling crawler 2 is mounted via the track frame 1, a boss 67 of the rolling wheel 40 supporting the traveling crawler 2 is detachably fastened to the track frame 1. Even if the boss 67 is damaged, the repair can be performed by replacing only the boss 67, the repair cost can be reduced as compared with the replacement of the front part of the track frame 1, and oil leakage etc. It is easy to perform checks and the like at the time of assembling, and even if a problem occurs during assembling, it can be properly repaired with a small number of steps.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a combine.
FIG. 2 is a side view of the same.
FIG. 3 is an explanatory plan view of the same.
FIG. 4 is an explanatory side view of a front part of the fuselage.
FIG. 5 is an explanatory front view of the same.
FIG. 6 is a side view of the machine base.
FIG. 7 is a plan view of the same.
FIG. 8 is a side view of the main part.
FIG. 9 is a front view of the main part.
FIG. 10 is a perspective view of the same.
FIG. 11 is a plan view of a track frame section.
FIG. 12 is a bottom perspective view of the same.
FIG. 13 is a side view of the chassis.
FIG. 14 is a top perspective view of the same.
FIG. 15 is a plan view of the same.
FIG. 16 is an explanatory side view of the same.
FIG. 17 is a side view of the main part.
FIG. 18 is a plan view of the main part.
FIG. 19 is an exploded view of a track frame.
FIG. 20 is a top perspective view of the same.
FIG. 21 is a plan view of the same.
FIG. 22 is a side view of the same.
FIG. 23 is a side view of the machine elevating cylinder unit.
FIG. 24 is an enlarged view of the front part.
FIG. 25 is an enlarged view of the rear part.
FIG. 26 is an exploded view of a track frame.
FIG. 27 is a sectional front view of a track frame portion.
FIG. 28 is an enlarged view of the lower portion.
FIG. 29 is an explanatory view of a rolling wheel.
FIG. 30 is a plan view of the front part of the chassis of the machine.
FIG. 31 is an explanatory view of mounting the elevating cylinder of the machine.
FIG. 32 is an explanatory view for attaching a swing arm.
FIG. 33 is a side view of the tension frame portion.
FIG. 34 is a sectional view of a carrier roller unit.
FIG. 35 is a perspective view of a track frame showing a modification.
FIG. 36 is an exploded view of FIG.
FIG. 37 is an explanatory view showing a modification of FIG. 28;
FIG. 38 is a plan view of a cross member portion.
[Explanation of symbols]
1 track frame
2 traveling crawlers
40 wheel
42 Idol Roller
45 Chassis
46 Idler frame
49 Machine lifting fulcrum boss
50 Machine lifting shaft
51 Upper swing arm
52 Lower swing arm
53 receiving shaft
55 Machine lifting cylinder
57 Idler Link
67 Boss
79 Final receiving stay (mounting member)
88 piston rod
93 Adjustment mechanism
95 Stopper
96 splines
97 Notch

Claims (5)

トラックフレームを介して走行クローラを装設させる走行車において、水平制御可能な走行クローラの本機昇降支点ボスを取付け部材に固定させた状態でシャーシに設けることを特徴とする走行車。What is claimed is: 1. A traveling vehicle having a traveling crawler mounted thereon via a track frame, wherein the traveling crawlers of the traveling crawler capable of horizontal control are provided on a chassis while being fixed to a mounting member. トラックフレームを介して走行クローラを装設させる走行車において、走行クローラのアイドルローラを支えるアイドラフレームのストッパをトラックフレームに設けることを特徴とする走行車。A traveling vehicle in which a traveling crawler is mounted via a track frame, wherein a stopper of an idler frame that supports an idle roller of the traveling crawler is provided on the truck frame. トラックフレームを介して走行クローラを装設させる走行車において、走行クローラのアイドルローラを支えるアイドラフレームのアイドラリンクと、本機昇降シリンダに連結させるスイングアームとを、テーパ形状の軸に設けることを特徴とする走行車。In a traveling vehicle in which a traveling crawler is mounted via a track frame, an idler link of an idler frame supporting an idle roller of the traveling crawler and a swing arm connected to the lifting cylinder of the machine are provided on a tapered shaft. And traveling vehicles. トラックフレームを介して走行クローラを装設させる走行車において、本機昇降シリンダに連結させるスイングアームと、スイングアームを支える本機昇降支軸とを、切欠を有するスプラインを介して設けることを特徴とする走行車。In a traveling vehicle on which a traveling crawler is mounted via a track frame, a swing arm connected to the lift cylinder of the machine and a lift shaft of the machine supporting the swing arm are provided via a spline having a notch. Traveling car. トラックフレームを介して走行クローラを装設させる走行車において、走行クローラを支える転輪のボスをトラックフレームに着脱自在に締結させることを特徴とする走行車。A traveling vehicle having a traveling crawler mounted thereon via a track frame, wherein a boss of a rolling wheel supporting the traveling crawler is detachably fastened to the truck frame.
JP2002179826A 2002-06-20 2002-06-20 Traveling car Expired - Fee Related JP4071556B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007023586A1 (en) * 2005-08-23 2007-03-01 Yanmar Co., Ltd. Combine
JP2007055330A (en) * 2005-08-23 2007-03-08 Yanmar Co Ltd Frame structure of combine harvester
CN109766591A (en) * 2018-12-20 2019-05-17 中国北方车辆研究所 A kind of track carrier moved cross beam light-weight design method
US11427134B2 (en) * 2018-10-26 2022-08-30 Iseki & Co., Ltd. Tractor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007023586A1 (en) * 2005-08-23 2007-03-01 Yanmar Co., Ltd. Combine
JP2007055330A (en) * 2005-08-23 2007-03-08 Yanmar Co Ltd Frame structure of combine harvester
US11427134B2 (en) * 2018-10-26 2022-08-30 Iseki & Co., Ltd. Tractor
CN109766591A (en) * 2018-12-20 2019-05-17 中国北方车辆研究所 A kind of track carrier moved cross beam light-weight design method
CN109766591B (en) * 2018-12-20 2022-11-22 中国北方车辆研究所 Lightweight design method for crawler-type chariot movable cross beam

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