JP2017190843A - 駆動力伝達装置及び四輪駆動車 - Google Patents
駆動力伝達装置及び四輪駆動車 Download PDFInfo
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- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
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- B60K17/00—Arrangement or mounting of transmissions in vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16D27/115—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
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- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
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- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
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Abstract
【解決手段】駆動力伝達装置1は、ピニオン歯部30、ピニオン歯部30の一側に延在する第1軸部31、及びピニオン歯部30の他側に延在する第2軸部32を有するピニギヤオンシャフト3と、ピニオン歯部30に噛合するリングギヤ55と、ピニオンギヤシャフト3と同一回転軸線上で相対回転可能なクラッチハウジング2と、クラッチハウジング2とピニオンギヤシャフト3の第1軸部31との間に配置されたクラッチ機構4と、リングギヤ55を収容するデフキャリヤ6とを備える。ピニオンギヤシャフト3は、第1軸部31が第1軸受81によって、また第2軸部32が第2軸受32によって支持され、クラッチハウジング2は、第1軸部31に外嵌された第3軸受83を介してピニオンギヤシャフト3に支持されている。
【選択図】図2
Description
本発明の実施の形態について、図1乃至図3を参照して説明する。なお、以下に説明する実施の形態は、本発明を実施する上での好適な具体例として示すものであり、技術的に好ましい種々の技術的事項を具体的に例示している部分もあるが、本発明の技術的範囲は、この具体的態様に限定されるものではない。
図1は、本発明の実施の形態に係る駆動力伝達装置が搭載された四輪駆動車の構成例を示す構成図である。図2は、駆動力伝達装置を示す断面図である。図3は、図2の一部を拡大して示す拡大図である。
図2は、駆動力伝達装置1の構成例を水平断面で示す断面図である。図2では、図面左側が四輪駆動車100への搭載状態における車両の前後方向の前側(前輪104L,104R側)にあたり、図面右側が四輪駆動車100への搭載状態における車両前後方向の後側(後輪105L,105R側)にあたる。なお、以下の説明では、車両前後方向における前側をフロント側といい、車両前後方向における後側をリヤ側という。
以上説明した実施の形態によれば、第2軸受82がピニオンギヤシャフト3のピニオン歯部30よりもリヤ側の第2軸部32の外周に配置された構成、第1軸受81の軸方向移動がコイルハウジング71により規制された構成、及びコイルハウジング71がデフキャリヤ6に固定された構成により、ピニオンギヤシャフト3の軸方向における外周スプライン係合部311とピニオン歯部30との間の駆動力伝達距離を短くすることができる。また、ギヤオイルとクラッチオイルとが、コイルハウジング71の内側に配置された第1シール部材91及びリヤハウジング22の内側に配置された第2シール部材92により区画されているので、これら第1シール部材91及び第2シール部材92を配置することによる駆動力伝達距離の長尺化を抑制することが可能となる。
以上、本発明を上記実施の形態に基づいて説明したが、本発明はこれらの実施の形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で適宜変形して実施することが可能である。例えば、上記実施の形態では、駆動力伝達装置1が差動機構5を備えたクラッチ付きのディファレンシャル装置として構成された場合について説明したが、本発明はこれに限らず、例えばプロペラシャフトのフロント側に配置され、プロペラシャフトへの駆動力の伝達を遮断可能なトランスファに適用することも可能である。この場合、駆動力伝達装置が差動機構を備えず、ピニオンギヤシャフトに噛み合う大径歯車がプロペラシャフトに連結される。
211…円筒部 3…ピニオンギヤシャフト
30…ピニオン歯部 31…第1軸部
32…第2軸部 4…クラッチ機構
5…差動機構 55…リングギヤ(大径歯車)
6…デフキャリヤ(ケース部材) 70…コイル
71…コイルハウジング 81〜84…第1乃至第4軸受
91,92…第1及び第2シール部材 100…四輪駆動車
102…エンジン(駆動源) 104L,104R…前輪
105L,105R…後輪 108…プロペラシャフト(駆動軸)
Claims (7)
- 傘歯車からなるピニオン歯部、前記ピニオン歯部の大径端部側に延在する第1軸部、及び前記ピニオン歯部の小径端部側に延在する第2軸部を有するピニギヤオンシャフトと、
前記ピニオン歯部に噛合し、前記ピニオン歯部よりも大径の傘歯車からなる大径歯車と、
前記第1軸部の少なくとも一部を収容する円筒部を有し、前記ピニオンギヤシャフトと同一回転軸線上で相対回転可能な筒状回転部材と、
前記筒状回転部材の前記円筒部と前記ピニオンギヤシャフトの前記第1軸部との間に配置されたクラッチ機構と、
前記ピニオンギヤシャフトの前記ピニオン歯部及び前記第2軸部、ならびに前記大径歯車を収容するケース部材とを備え、
前記筒状回転部材と前記大径歯車との間で前記クラッチ機構及び前記ピニオンギヤシャフトを介して駆動力が伝達される駆動力伝達装置であって、
前記ピニオンギヤシャフトは、前記第1軸部が第1軸受を介して前記ケース部材に対して支持されると共に、前記第2軸部が第2軸受を介して前記ケース部材に対して支持され、
前記筒状回転部材は、前記第1軸部に外嵌された第3軸受を介して前記ピニオンギヤシャフトに支持されている、
駆動力伝達装置。 - 前記クラッチ機構を作動させる電磁力を発生するコイル、及び前記コイルを保持するコイルハウジングをさらに備え、
前記コイルハウジングが前記ケース部材に対して固定され、
前記第1軸受の前記ピニオンギヤシャフトに対する軸方向移動が前記コイルハウジングによって規制されている、
請求項1に記載の駆動力伝達装置。 - 前記コイルハウジングは、前記コイルを保持する保持部と、前記保持部から前記ピニオン歯部側に延出された延出部と、前記ケース部材に固定される固定部とを有し、
前記第1軸受が前記延出部の内側に配置されている、
請求項2に記載の駆動力伝達装置。 - 前記ピニギヤオンシャフトの軸方向における前記クラッチ機構と前記ピニオン歯部との間に、前記ピニオン歯部と前記大径歯車との噛み合いを潤滑するギヤオイルが前記クラッチ機構側に漏出することを抑止する少なくとも1つのシール部材が配置された、
請求項1乃至3の何れか1項に記載の駆動力伝達装置。 - 前記コイルハウジングの内周面と前記第1軸部の外周面との間に配置された第1シール部材、及び前記筒状回転部材の内周面と前記第1軸部の外周面との間に配置された第2シール部材をさらに備え、
前記第1シール部材及び前記第2シール部材によって前記ピニオン歯部と前記大径歯車との噛み合いを潤滑するギヤオイルが前記クラッチ機構側に漏出することが抑止されている、
請求項1乃至3の何れか1項に記載の駆動力伝達装置。 - 前記ケース部材内に収容され、前記大径歯車に伝達された駆動力を一対の出力部材から差動を許容して出力することが可能な差動機構をさらに備えた、
請求項1乃至5の何れか1項に記載の駆動力伝達装置。 - 請求項6に記載の駆動力伝達装置を備え、左右一対の前輪に駆動源の駆動力が常時伝達されると共に、左右一対の後輪に前記駆動源の駆動力が前記駆動力伝達装置を介して伝達される四輪駆動車であって、
前記筒状回転部材に車両前後方向に駆動力を伝達する駆動軸が連結され、
前記ピニオンギヤシャフトが前記筒状回転部材を介して前記駆動軸の一端部を支持している、
四輪駆動車。
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US15/483,045 US9931930B2 (en) | 2016-04-14 | 2017-04-10 | Driving force transmission apparatus and four-wheel drive vehicle |
DE102017107895.9A DE102017107895A1 (de) | 2016-04-14 | 2017-04-12 | Antriebskraftübertragungsvorrichtung und Fahrzeug mit Vierradantrieb |
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JP6933099B2 (ja) * | 2017-11-16 | 2021-09-08 | 株式会社ジェイテクト | 断続装置 |
JP2020106048A (ja) * | 2018-12-26 | 2020-07-09 | 本田技研工業株式会社 | 車両用駆動装置 |
JP2020128771A (ja) * | 2019-02-08 | 2020-08-27 | 株式会社ジェイテクト | 駆動力伝達装置及び四輪駆動車 |
CN111255815A (zh) * | 2020-01-17 | 2020-06-09 | 重庆隆鑫机车有限公司 | 强化离合器及发动机 |
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CN109990072B (zh) * | 2017-12-29 | 2024-05-03 | 中车戚墅堰机车车辆工艺研究所股份有限公司 | 轮边减速器及具有其的车辆 |
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