JPH09210183A - Power transmission - Google Patents

Power transmission

Info

Publication number
JPH09210183A
JPH09210183A JP3738496A JP3738496A JPH09210183A JP H09210183 A JPH09210183 A JP H09210183A JP 3738496 A JP3738496 A JP 3738496A JP 3738496 A JP3738496 A JP 3738496A JP H09210183 A JPH09210183 A JP H09210183A
Authority
JP
Japan
Prior art keywords
bearing
pinion shaft
shaft
pinion
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3738496A
Other languages
Japanese (ja)
Inventor
Keiji Tsuneda
恵司 恒田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP3738496A priority Critical patent/JPH09210183A/en
Publication of JPH09210183A publication Critical patent/JPH09210183A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/38—Constructional details
    • F16H48/42—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon
    • F16H2048/423—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon characterised by bearing arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears

Landscapes

  • Support Of The Bearing (AREA)
  • General Details Of Gearings (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce the number of part items so as to simplify a structure by arranging a pre-load regulating tool for regulating the pre-load of an axial direction of a bearing on the pinion shaft formed between the bearing and a viscosity joint while being brought in contact with the bearing. SOLUTION: A pinion shaft 6 is rotatably arranged on first and second taper rotor bearings 8, 10 formed as a bearing held on a differential carrier 4. The pinion shaft 6 is provided with a viscosity joint 38 for a full time on one end side. A fastening nut 58 formed as a pre-load regulating tool which is brought in contact with the side surface of the second inner wheel of a second taper rotor bearing 10 is threadedly engaged with the pinion shaft 6 formed between the second taper rotor bearing 10 and the viscosity joint 38 so as to apply the pre-load of an axial direction on the first and second taper rotor bearings 8, 10. The fastening nut 58 is threadedly engaged with a screw 60 formed on the outer peripheral surface of the pinion shaft 6. It is thus possible to regulate the pre-load of the bearing easily. It is also possible to reduce the number of installing parts so as to reduce the number of parts, simplify a structure, and reduce a cost.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】この発明は、動力伝達装置に
係り、特にピニオン軸を支持する軸受への軸方向の予圧
を容易に調整し得る動力伝達装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission device, and more particularly to a power transmission device capable of easily adjusting an axial preload on a bearing that supports a pinion shaft.

【０００２】[0002]

【従来の技術】四輪駆動車等の車両においては、一端側
にピニオンであるベベルピニオンが備えられたピニオン
軸を差動機の被包体であるデフキャリヤに保持させた軸
受であるテーパローラ軸受によって回転可能に設け、ピ
ニオン軸の他端側と推進軸間に粘性継手を設けた動力伝
達装置が設置されているものがある。2. Description of the Related Art In a vehicle such as a four-wheel drive vehicle, a pinion shaft having a bevel pinion that is a pinion on one end side is rotated by a tapered roller bearing which is a bearing held by a differential carrier which is an enclosure of a differential gear. In some cases, a power transmission device is installed that is possible and has a viscous joint between the other end of the pinion shaft and the propulsion shaft.

【０００３】即ち、動力伝達装置にあっては、図３に示
す如く、一端側にベベルピニオン１０２が備えられたピ
ニオン軸１０４をデフキャリヤ１０６に保持させた第
１、第２テーパローラ軸受１０８、１１０によって回転
可能に設け、第１テーパローラ軸受１０８と第２テーパ
ローラ軸受１１０間に塑性で管状のスペーサ１１２を設
け、また、ピニオン軸１０４の他端側にフルタイム用の
粘性継手１１４を設け、更に、ピニオン軸１０４の他端
側の端部位に第１、第２テーパローラ軸受１０８、１１
０に軸方向の予圧（プレロード）を与える予圧調整具で
ある締付ナット１１６を螺着している。That is, in the power transmission device, as shown in FIG. 3, the pinion shaft 104 having the bevel pinion 102 at one end is held by the differential carrier 106 by the first and second taper roller bearings 108, 110. It is rotatably provided, a plastic tubular spacer 112 is provided between the first taper roller bearing 108 and the second taper roller bearing 110, and a full-time viscous joint 114 is provided at the other end of the pinion shaft 104. The first and second tapered roller bearings 108, 11 are provided at the other end of the shaft 104.
A tightening nut 116, which is a preload adjusting tool for applying an axial preload to 0, is screwed on.

【０００４】また、図４、５に示す如く、動力伝達装置
である差動機２０２にあっては、一端側にベベルピニオ
ン２０４が備えられたピニオン軸２０６をデフキャリヤ
２０８に保持させた第１、第２テーパローラ軸受２１
０、２１２によって回転可能に支持し、ピニオン軸２０
６の多端側に二輪・四輪切換機構２１４の切換ドック２
１６を設け、また、ピニオン軸２０６の他端側の端部位
にこの切換ドック２１６を介して第１、第２テーパロー
ラ軸受２１０、２１２に軸方向の予圧を与える締付ナッ
ト２１８を螺着している。二輪・四輪切換機構２１４
は、推進軸（図示せず）側の粘性継手２２０と切換ドッ
ク２１６とを接続・離間し、２輪駆動と４輪駆動とに切
換えるものである。Further, as shown in FIGS. 4 and 5, in a differential gear 202 which is a power transmission device, first and second pinion shafts 206 each having a bevel pinion 204 at one end are held by a differential carrier 208. 2 taper roller bearing 21
It is rotatably supported by the pinion shaft 20.
The switching dock 2 of the two-wheel / four-wheel switching mechanism 214 is provided on the multi-end side of 6
16 is provided, and a tightening nut 218 that applies an axial preload to the first and second taper roller bearings 210 and 212 is screwed to the end portion on the other end side of the pinion shaft 206 via the switching dock 216. There is. Two-wheel / four-wheel switching mechanism 214
Is to connect and separate the viscous joint 220 on the side of the propulsion shaft (not shown) and the switching dock 216 to switch between two-wheel drive and four-wheel drive.

【０００５】また、このような動力伝達装置としては、
例えば、特開昭６２−１６３８２９号公報、特開平２−
３８７２２号公報に開示されている。特開昭６２−１６
３８２９号公報に記載のものは、トランスファとプロペ
ラシャフト間に、回転差の増大に応じて増大するトルク
を伝達する粘性クラッチを設け、また、回転軸を支軸す
るテーパローラ軸受が粘性クラッチを介して締付ナット
の締付けによって拘束されている。特開平２−３８７２
２号公報に記載のものは、トランスファとプロペラシャ
フト間に粘性継手を設けたものである。Further, as such a power transmission device,
For example, JP-A-62-163829, JP-A-2-
It is disclosed in Japanese Patent No. 38722. JP-A-62-16
In the device described in Japanese Patent No. 3829, a viscous clutch that transmits torque that increases in accordance with an increase in rotational difference is provided between a transfer and a propeller shaft, and a taper roller bearing that supports a rotating shaft is provided via the viscous clutch. Restrained by tightening the tightening nut. JP-A-2-3872
The one described in Japanese Patent Publication No. 2 is one in which a viscous joint is provided between the transfer and the propeller shaft.

【０００６】[0006]

【発明が解決しようとする課題】ところが、従来、動力
伝達装置にあっては、テーパローラ軸受とこのテーパロ
ーラ軸受に予圧を与える締付ナットとの間には粘性継手
や切換ドックが介在されているので、摩擦面が多くなっ
て締付ボルトで締付けた時の軸力効率が低下し、予圧の
調整が困難になるという不都合があった。However, conventionally, in the power transmission device, since the viscous joint and the switching dock are interposed between the taper roller bearing and the tightening nut for preloading the taper roller bearing. However, the frictional surface is increased and the axial force efficiency when tightened with the tightening bolt is reduced, which makes it difficult to adjust the preload.

【０００７】また、粘性継手を設置するために、他の部
品を必要とし、部品点数が増加し、また、構成が複雑と
なり、しかも、高価になるという不都合があった。Further, in order to install the viscous joint, other parts are required, the number of parts is increased, the structure is complicated, and the cost is high.

【０００８】[0008]

【課題を解決するための手段】そこで、この発明は、上
述の不都合を除去するために、一端側にピニオンが備え
られたピニオン軸を被包体に保持させた軸受によって回
転可能に設け、前記ピニオン軸の他端側と推進軸間に粘
性継手を設けた動力伝達装置において、前記軸受と前記
粘性継手間の前記ピニオン軸には前記軸受への軸方向の
予圧を調整する予圧調整具を前記軸受に接して設けたこ
とを特徴とする。Therefore, in order to eliminate the above-mentioned inconvenience, the present invention provides a pinion shaft having a pinion on one end side rotatably provided by a bearing held in an envelope. In a power transmission device in which a viscous joint is provided between the other end of the pinion shaft and a propulsion shaft, the pinion shaft between the bearing and the viscous joint is provided with a preload adjuster for adjusting an axial preload to the bearing. It is characterized in that it is provided in contact with the bearing.

【０００９】[0009]

【発明の実施の形態】この発明は、ピニオン軸を支持す
る軸受への軸方向の予圧を与える予圧調整具を、粘性継
手等を介さないで、軸受に直接接して設けるので、摩擦
面を少なくし、軸受への予圧の調整を容易にさせること
ができ、また、粘性継手をピニオン軸に設けることがで
き、その取付け部品等を少なくして部品点数を低減し、
構成を簡単にし、廉価にすることができる。BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, a preload adjusting tool for applying an axial preload to a bearing supporting a pinion shaft is provided directly in contact with the bearing without using a viscous joint or the like, so that the friction surface is reduced. However, it is possible to easily adjust the preload to the bearing, and a viscous joint can be provided on the pinion shaft.
The configuration can be simple and inexpensive.

【００１０】[0010]

【実施例】以下図面に基づいてこの発明の実施例を詳細
且つ具体的に説明する。図１、２は、この発明の実施例
を示すものである。図１において、２は動力伝達装置で
ある差動機、４は被包体であるデフキャリヤ、６はピニ
オン軸である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; 1 and 2 show an embodiment of the present invention. In FIG. 1, 2 is a differential gear which is a power transmission device, 4 is a differential carrier which is an enclosure, and 6 is a pinion shaft.

【００１１】ピニオン軸６は、デフキャリヤ４に保持さ
せた軸受である第１、第２テーパローラ軸受８、１０に
回転可能に設けられている。第１テーパローラ軸受８
は、第１内輪１２と第１外輪１４と第１ころ１６とから
なる。第２テーパローラ軸受１０は、第２内輪１８と第
２外輪２０と第２ころ２２とからなる。離間した第１内
輪１２と第２内輪１８間のピニオン軸６には、塑性で管
状のスペーサ２４が介設されている。The pinion shaft 6 is rotatably provided on first and second tapered roller bearings 8 and 10 which are bearings held by the differential carrier 4. First taper roller bearing 8
Is composed of a first inner ring 12, a first outer ring 14, and a first roller 16. The second taper roller bearing 10 includes a second inner ring 18, a second outer ring 20, and a second roller 22. A plastic, tubular spacer 24 is provided on the pinion shaft 6 between the first inner race 12 and the second inner race 18 which are separated from each other.

【００１２】ピニオン軸６には、一端側に、ピニオン２
６であるベベルピニオンが備えられている。このベベル
ピニオン２６には、デフケース２８に保持ボルト３０に
よって保持されたリングギヤ３２が噛合している。The pinion shaft 6 has a pinion 2 on one end side.
A 6 bevel pinion is provided. A ring gear 32 held by a holding bolt 30 on a differential case 28 meshes with the bevel pinion 26.

【００１３】デフケース２８は、デフキャリヤ４に保持
させた第１、第２デフケース軸受３４、３６に回転可能
に設けられている。The differential case 28 is rotatably provided on the first and second differential case bearings 34 and 36 held by the differential carrier 4.

【００１４】また、ピニオン軸６には、他端側に、フル
タイム用の粘性継手３８が設けられている。この粘性継
手３８は、ピニオン軸６にスプライン結合した内側軸４
０と、この内側軸４０に外嵌した外側ケース４２と、内
側軸４０と外側ケース４２間に形成したオイル室４４
と、このオイル室４４内に設けた作動部材４６とからな
る。外側ケース４２は、推進軸継手４８を介して推進軸
５０に連結している。ピニオン軸６の他端側の端部位
は、外側ケース４２に保持させた前側軸受５２によって
回転可能に支持されている。A full-time viscous joint 38 is provided on the other end of the pinion shaft 6. The viscous joint 38 is provided on the inner shaft 4 spline-coupled to the pinion shaft 6.
0, an outer case 42 fitted on the inner shaft 40, and an oil chamber 44 formed between the inner shaft 40 and the outer case 42.
And an operating member 46 provided in the oil chamber 44. The outer case 42 is connected to the propulsion shaft 50 via a propulsion shaft joint 48. The other end of the pinion shaft 6 is rotatably supported by a front bearing 52 held by the outer case 42.

【００１５】デフキャリヤ４と外側ケース４２とは、シ
ール材５４によってシールされている。また、デフキャ
リヤ４と外側ケース４２間は、シール材５４を包囲する
保護カバー５６によって覆われている。The differential carrier 4 and the outer case 42 are sealed by a sealing material 54. A space between the differential carrier 4 and the outer case 42 is covered with a protective cover 56 that surrounds the seal material 54.

【００１６】第２テーパローラ軸受１０と粘性継手３８
間のピニオン軸６には、第１、第２テーパローラ軸８、
１０への軸方向の予圧を与えるように、第２テーパロー
ラ軸受１０の第２内輪１８の側面に接する予圧調整具で
ある締付ナット５８が螺着して設けられている。この締
付ナット５８は、ピニオン軸６の外周面に形成したねじ
６０に螺着されている。Second taper roller bearing 10 and viscous joint 38
The pinion shaft 6 between the first and second taper roller shafts 8,
A tightening nut 58, which is a preload adjusting tool, is provided in contact with the side surface of the second inner ring 18 of the second taper roller bearing 10 so as to apply an axial preload to the screw 10. The tightening nut 58 is screwed to a screw 60 formed on the outer peripheral surface of the pinion shaft 6.

【００１７】また、粘性継手３８の内側軸４０は、一端
側がピニオン軸６の外周面に形成した係止段差部６２に
係止されるとともに、他端側がサークリップ６４に係止
され、ピニオン軸６の他端側に取付けられる。サークリ
ップ６４は、ピニオン軸６の外周面に形成したクリップ
溝６６に係着されている。Further, the inner shaft 40 of the viscous joint 38 has one end side locked to a locking step portion 62 formed on the outer peripheral surface of the pinion shaft 6 and the other end side locked to a circlip 64, so that the pinion shaft It is attached to the other end side of 6. The circlip 64 is engaged with a clip groove 66 formed on the outer peripheral surface of the pinion shaft 6.

【００１８】次に、この実施例の作用を説明する。Next, the operation of this embodiment will be described.

【００１９】エンジン（図示せず）からの駆動力は、推
進軸５０から粘性継手３８を経て、ピニオン軸６、リン
グギヤ３２側に伝達される。The driving force from the engine (not shown) is transmitted from the propulsion shaft 50 through the viscous joint 38 to the pinion shaft 6 and the ring gear 32 side.

【００２０】ところで、この実施例にあっては、締付ナ
ット５８が第２テーパローラ軸受１０の第２内輪１８の
側面に直接接し、第１、第２テーパローラ軸受８、１０
への軸方向の予圧を与えるのに粘性継手３８を介するこ
とがないので、摩擦面を少なくし、これにより、予圧の
調整を容易に行わせることができる。By the way, in this embodiment, the tightening nut 58 is in direct contact with the side surface of the second inner ring 18 of the second taper roller bearing 10, and the first and second taper roller bearings 8 and 10 are provided.
Since there is no intervening viscous joint 38 to apply the axial preload to, the friction surface is reduced, and thus the preload can be easily adjusted.

【００２１】また、粘性継手３８が直接ピニオン軸６に
設けられるので、粘性継手３８を取付けるための部品を
少なくし、部品点数を低減し、また、構成を簡単にし、
更に、廉価とする。Since the viscous joint 38 is directly provided on the pinion shaft 6, the number of parts for mounting the viscous joint 38 is reduced, the number of parts is reduced, and the structure is simplified.
Furthermore, the price will be reduced.

【００２２】更に、粘性継手３８をサークリップ６４で
係止するだけなので、粘性継手３８の組付けが容易とな
り、もって、粘性継手３８の交換時には、締付ナット５
８を緩める必要がなく、これにより、差動機２を分解す
る必要がなく、粘性継手３８の交換を容易に行なわせる
ことができる。Further, since the viscous joint 38 is simply locked by the circlip 64, the assembling of the viscous joint 38 is facilitated, so that when the viscous joint 38 is replaced, the tightening nut 5
8 does not need to be loosened, whereby the differential 2 need not be disassembled and the viscous joint 38 can be replaced easily.

【００２３】[0023]

【発明の効果】以上詳細な説明から明らかなようにこの
発明によれば、ピニオン軸を支持する軸受と粘性継手間
のピニオン軸には軸受への軸方向の予圧を調整する予圧
調整具を軸受に接して設けたことにより、摩擦面を少な
くし、軸受への予圧の調整を容易にさせ得る。As is apparent from the above detailed description, according to the present invention, the bearing for supporting the pinion shaft and the pinion shaft between the viscous joints are provided with a preload adjuster for adjusting the axial preload to the bearing. Since it is provided in contact with, the friction surface can be reduced, and the preload on the bearing can be easily adjusted.

【００２４】また、粘性継手をピニオン軸に設けること
ができ、その取付け部品等を少なくして部品点数を低減
し、構成を簡単に、しかも、廉価とし得る。Further, the viscous joint can be provided on the pinion shaft, and the number of parts to be attached to the pinion shaft can be reduced to reduce the number of parts, resulting in a simple and inexpensive structure.

【図面の簡単な説明】[Brief description of drawings]

【図１】差動機の断面図である。FIG. 1 is a cross-sectional view of a differential gear.

【図２】粘性継手の取付状態の半断面図である。FIG. 2 is a half sectional view of a viscous joint in a mounted state.

【図３】従来の粘性継手の取付状態の半断面図である。FIG. 3 is a half sectional view of a conventional viscous joint in a mounted state.

【図４】従来の差動機の断面図である。FIG. 4 is a cross-sectional view of a conventional differential gear.

【図５】従来の差動機の側面図である。FIG. 5 is a side view of a conventional differential gear.

【符号の説明】[Explanation of symbols]

２ 差動機 ４ デフキャリヤ ６ ピニオン軸 ８ 第１テーパローラ軸受 １０ 第２テーパローラ軸受 ２６ ベベルピニオン ３８ 粘性継手 ５８ 締付ナット ６４ サークリップ 2 differential gear 4 differential carrier 6 pinion shaft 8 first taper roller bearing 10 second taper roller bearing 26 bevel pinion 38 viscous joint 58 tightening nut 64 circlip

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 一端側にピニオンが備えられたピニオン
軸を被包体に保持させた軸受によって回転可能に設け、
前記ピニオン軸の他端側と推進軸間に粘性継手を設けた
動力伝達装置において、前記軸受と前記粘性継手間の前
記ピニオン軸には前記軸受への軸方向の予圧を調整する
予圧調整具を前記軸受に接して設けたことを特徴とする
動力伝達装置。1. A pinion shaft having a pinion on one end side is rotatably provided by a bearing held by an envelope.
In a power transmission device provided with a viscous joint between the other end side of the pinion shaft and a propulsion shaft, a preload adjuster for adjusting an axial preload on the bearing is provided on the pinion shaft between the bearing and the viscous joint. A power transmission device provided in contact with the bearing.
JP3738496A 1996-01-31 1996-01-31 Power transmission Pending JPH09210183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3738496A JPH09210183A (en) 1996-01-31 1996-01-31 Power transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3738496A JPH09210183A (en) 1996-01-31 1996-01-31 Power transmission

Publications (1)

Publication Number Publication Date
JPH09210183A true JPH09210183A (en) 1997-08-12

Family

ID=12496040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3738496A Pending JPH09210183A (en) 1996-01-31 1996-01-31 Power transmission

Country Status (1)

Country Link
JP (1) JPH09210183A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100865059B1 (en) * 1999-04-28 2008-10-23 다케다 야쿠힌 고교 가부시키가이샤 Prevention / Treatment / Suppressive Agents for Simple Retinopathy or Proliferative Retinopathy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100865059B1 (en) * 1999-04-28 2008-10-23 다케다 야쿠힌 고교 가부시키가이샤 Prevention / Treatment / Suppressive Agents for Simple Retinopathy or Proliferative Retinopathy

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