JP2001280445A - Gear transmission - Google Patents
Gear transmissionInfo
- Publication number
- JP2001280445A JP2001280445A JP2000091378A JP2000091378A JP2001280445A JP 2001280445 A JP2001280445 A JP 2001280445A JP 2000091378 A JP2000091378 A JP 2000091378A JP 2000091378 A JP2000091378 A JP 2000091378A JP 2001280445 A JP2001280445 A JP 2001280445A
- Authority
- JP
- Japan
- Prior art keywords
- pinion gear
- gear
- main shaft
- spline
- recess
- 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.)
- Granted
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
- F16H48/38—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
- F16H2048/426—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon characterised by bearing arrangement characterised by spigot bearing arrangement, e.g. bearing for supporting the free end of the drive shaft pinion
Landscapes
- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
- Retarders (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は４輪車両の差動歯車
装置及びファイナルギヤ装置等、特にピニオンギヤとヨ
ーク部材との締結構造を改良した歯車伝達装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a differential gear device and a final gear device for a four-wheel vehicle, and more particularly to a gear transmission device having an improved fastening structure between a pinion gear and a yoke member.
【０００２】[0002]
【従来の技術】図２は従来の差動歯車装置の一例を示す
縦断面図である。ギヤケース05は、前半部のピニオンギ
ヤケース06と後半部の差動キャリア07が一体に形成され
ている。ピニオンギヤケース06は、円筒部06ａと後底端
部06ｂとから成るほぼ有底円筒形状をしており、その後
底端部06ｂに、偏平な円筒部07ａと中空の左底端部07ｂ
とから成る有底円筒形状をした差動キャリア07が、一体
に延設されている。ピニオンギヤケース06と差動キャリ
ア07は、後底端部06ｂと左底端部07ｂとが一体に連結さ
れ、ピニオンギヤケース06の円筒形状の中心軸が前後方
向に指向し、差動キャリア07の円筒形状の中心軸が左右
方向に指向して、両者は直交している。2. Description of the Related Art FIG. 2 is a longitudinal sectional view showing an example of a conventional differential gear device. The gear case 05 has a front half pinion gear case 06 and a rear half differential carrier 07 integrally formed. The pinion gear case 06 has a substantially bottomed cylindrical shape including a cylindrical portion 06a and a rear bottom end portion 06b, and then has a flat cylindrical portion 07a and a hollow left bottom end portion 07b at the bottom end portion 06b.
And a differential carrier 07 having a bottomed cylindrical shape and extending integrally therewith. The pinion gear case 06 and the differential carrier 07 have a rear bottom end portion 06b and a left bottom end portion 07b integrally connected, and the central axis of the cylindrical shape of the pinion gear case 06 is oriented in the front-rear direction. The center axis of the shape is oriented in the left-right direction, and both are orthogonal.
【０００３】ピニオンギヤケース06の内部にはヨーク締
結機構02が納められている。また差動キャリア07の右側
の円形開口を覆うようにして中空の差動キャリアカバー
08が右側から合体し、その内部に差動機構03が納められ
る。[0003] A yoke fastening mechanism 02 is housed inside the pinion gear case 06. A hollow differential carrier cover covering the right circular opening of the differential carrier 07
08 is merged from the right side, and the differential mechanism 03 is housed inside.
【０００４】差動機構03は、差動キャリア07および差動
キャリアカバー08内において、リングギヤ060と一体に
左右合体した差動ケース061が左右方向に指向する中心
軸の周りに回転自在に、玉軸受062，063により支持され
ている。In the differential mechanism 03, a differential case 061 integrally formed with the ring gear 060 in the differential carrier 07 and the differential carrier cover 08 is rotatable around a central axis oriented in the left-right direction. It is supported by bearings 062 and 063.
【０００５】差動ケース061内で中心軸に直交して架設
されたピニオンシャフト064に一対のピニオンギヤ065、
065が回転自在に軸支されている。そして各ピニオンギ
ヤ065、065にともにべべルギヤ式に噛み合う一対のサイ
ドギヤ066、066がピニオンシャフト064を挟んで左右に
それぞれ回転自在に支持されている。この各サイドギヤ
066、066に左右のアクスル軸がそれぞれスプライン嵌合
される。[0005] A pair of pinion gears 065 and 065 are mounted on a pinion shaft 064 erected at right angles to the center axis in the differential case 061.
065 is rotatably supported. A pair of side gears 066, 066 meshing with the respective pinion gears 065, 065 in a bevel gear type are rotatably supported on the left and right sides of the pinion shaft 064, respectively. Each side gear
The left and right axle shafts are spline-fitted to 066, 066, respectively.
【０００６】次にヨーク締結機構02について説明する。Next, the yoke fastening mechanism 02 will be described.
【０００７】駆動ピニオンギヤ012は軸方向にねじ部012
ａ、スプライン部012ｂ、円柱部012ｃ、ギヤ部012ｄ、
円柱端部012ｅが前から後へ順に形成されている。この
駆動ピニオンギヤ012のギヤ部012ｄが前記差動機構03の
リングギヤ060に噛み合って、動力が差動機構03に伝達
されるようになっている。The drive pinion gear 012 has a threaded portion 012 in the axial direction.
a, spline portion 012b, cylindrical portion 012c, gear portion 012d,
The column ends 012e are formed in order from the front to the rear. The gear portion 012d of the drive pinion gear 012 meshes with the ring gear 060 of the differential mechanism 03 so that power is transmitted to the differential mechanism 03.
【０００８】ピニオンギヤケース06の後底端部06ｂは、
外径が２段階に縮小されて後方に先細に形成されてい
る。そしてその後端の内径が縮小された部分にころ軸受
013が介装されて、駆動ピニオンギヤ012の円柱端部012
ｅが軸支されている。また、アウタレースがロックナッ
ト015によりピニオンギヤケース06の円筒部06ａに固定
された玉軸受014のインナレースに、駆動ピニオンギヤ0
12の円柱部012ｃが挿入されている。こうして駆動ピニ
オンギヤ012は、ころ軸受013と玉軸受014によりピニオ
ンギヤケース06に回転自在に軸支される。駆動ピニオン
ギヤ012のスプライン部012ｂには外歯スプラインが形成
されている。The rear bottom end 06b of the pinion gear case 06 is
The outer diameter is reduced in two steps and is tapered rearward. Roller bearings at the rear end where the inside diameter is reduced
013 is interposed to form a cylindrical end 012 of the drive pinion gear 012.
e is pivotally supported. In addition, the outer race has a drive pinion gear 0 on the inner race of the ball bearing 014 fixed to the cylindrical portion 06a of the pinion gear case 06 by the lock nut 015.
Twelve cylindrical portions 012c are inserted. Thus, the drive pinion gear 012 is rotatably supported on the pinion gear case 06 by the roller bearing 013 and the ball bearing 014. An external spline is formed in a spline portion 012b of the drive pinion gear 012.
【０００９】017はヨーク部材であって、枝分かれした
前端部には、図示しないエンジン側ヨーク部材と結合す
るクロスジョイントを挿入する穴017ａが設けられてい
る。そして後部の主軸部017ｂは円筒状に延び、その円
筒内面に内歯スプライン017ｄが形成されて、前記駆動
ピニオンギヤ012の外歯スプライン部012ｂと係合してい
る。また、駆動ピニオンギヤ012先端のねじ部012ａに螺
合されたロックナット018によって、ヨーク部材017は駆
動ピニオンギヤ012に軸受014を挟持して一体に固定され
る。Reference numeral 017 denotes a yoke member, and a branched front end is provided with a hole 017a for inserting a cross joint to be coupled to an engine-side yoke member (not shown). The rear main shaft portion 017b extends in a cylindrical shape, and an internal spline 017d is formed on the inner surface of the cylinder, and is engaged with the external spline portion 012b of the drive pinion gear 012. Further, the yoke member 017 is integrally fixed to the drive pinion gear 012 with the bearing 014 held therebetween by a lock nut 018 screwed into the screw portion 012a at the tip of the drive pinion gear 012.
【００１０】[0010]
【発明が解決しようとする課題】前記従来の差動歯車装
置においては、入力の回転方向によってピニオンギヤ01
2の反力の心向荷重方向が変化してしまうので、ピニオ
ンギヤ012の位置を強固に固定する必要があり、そのた
めヨーク部材017とロックナット018で締結していた。し
たがって、ねじ成形が必要であり、組立工数も多かっ
た。In the above-mentioned conventional differential gear device, the pinion gear 01 depends on the input rotation direction.
Since the direction of the center load of the reaction force of 2 changes, the position of the pinion gear 012 must be firmly fixed. Therefore, the pinion gear 012 is fastened with the yoke member 017 and the lock nut 018. Therefore, screw forming was required, and the number of assembly steps was large.
【００１１】また、駆動ピニオンギヤ012とヨーク部材0
17を一体に締結するロックナット018がヨーク部材017の
枝分かれする股部に位置するため、ヨーク部材017を駆
動ピニオンギヤ012に取り付けた後でないと、相手側
（エンジン側）のヨークやクロスジョイントの組み付け
ができなかった。The drive pinion gear 012 and the yoke member 0
Since the lock nut 018 for fastening the joint 17 integrally is located at the forked portion of the yoke member 017, the yoke and the cross joint on the mating side (engine side) must be assembled only after the yoke member 017 is attached to the drive pinion gear 012. Could not.
【００１２】[0012]
【課題を解決するための手段および効果】前記課題を解
決するために、請求項１の発明は、アウタレースがケー
ス側に装着されたころがり軸受と、該ころがり軸受のイ
ンナレースに圧入され、先端に外歯スプラインが設けら
れた駆動ピニオンギヤ主軸部と、先端面に凹所を有し、
同凹所に設けられた内歯スプラインが上記外歯スプライ
ンに係合するヨーク主軸部と、上記スプライン係合部に
取りつけられたストッパーリングを備え、軸方向に位置
決めされて連結されたことを特徴とするものである。In order to solve the above-mentioned problems, the invention of claim 1 is directed to a rolling bearing having an outer race mounted on a case side and an inner race of the rolling bearing, which is press-fitted into the inner race. A drive pinion gear main shaft portion provided with external tooth splines, and a recess on the tip end surface,
The internal spline provided in the recess includes a yoke main shaft portion that engages with the external spline and a stopper ring attached to the spline engagement portion, and is positioned and connected in the axial direction. It is assumed that.
【００１３】請求項１の発明はこのように構成されてい
るので、ねじ成形の一部が不要になって加工費を低減で
き、組立工数も削減される。請求項１の発明はまた、ヨ
ーク部材と相手方のエンジン側ヨーク部材とをあらかじ
め結合した後に、それらをピニオンギヤに取り付けるこ
とができ、組立て作業の自由度が増して、コストを低減
できる。[0013] Since the first aspect of the present invention is configured as described above, a part of the screw forming is not required, so that the processing cost can be reduced and the number of assembling steps can be reduced. According to the first aspect of the present invention, after the yoke member and the mating engine-side yoke member are connected in advance, they can be attached to the pinion gear, so that the degree of freedom of the assembling work is increased and the cost can be reduced.
【００１４】また、請求項２の発明は、上記に加えて、
上記凹所が上記ヨーク主軸部の先端面以外に開口せず、
上記ピニオンギヤ主軸部先端を密閉していることを特徴
とするものである。[0014] The invention of claim 2 provides, in addition to the above,
The recess does not open other than the tip surface of the yoke main shaft portion,
The end of the pinion gear main shaft is sealed.
【００１５】このように請求項２の発明においては、ヨ
ーク部材の後端凹所がヨーク主軸部の先端面以外には開
口せず、ピニオンギヤ主軸部の先端を密閉する状態にな
っているので、凹所に塵等の異物が侵入する心配がな
く、シール材が不要である。As described above, according to the second aspect of the present invention, the rear end recess of the yoke member does not open except for the front end surface of the yoke main shaft portion, and is in a state of sealing the front end of the pinion gear main shaft portion. There is no need to worry about foreign matter such as dust entering the recess, and no seal material is required.
【００１６】さらに請求項３の発明は、上記に加えて、
前記駆動ピニオンギヤの従動ギヤの噛合いが、すぐ歯傘
歯車（ストレートベベルギヤ）により駆動伝達されるこ
とを特徴とするものである。[0016] In addition to the above, the invention of claim 3 further comprises:
The meshing of the driven gear of the drive pinion gear is directly transmitted by a bevel gear (straight bevel gear).
【００１７】請求項３ａの発明はこのように構成されて
いるので、ギヤの心向荷重方向を一方向とすることがで
き、振動、耐久性に有利である。According to the third aspect of the invention, the gear can be oriented in one direction toward the center of the gear, which is advantageous in vibration and durability.
【００１８】[0018]
【発明の実施の形態】図１は本発明に係る歯車伝達装置
の実施の一形態を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing an embodiment of a gear transmission according to the present invention.
【００１９】ギヤケース５は、前半部のピニオンギヤケ
ース６と後半部の差動キャリヤ７が一体に形成されてい
る。ピニオンギヤケース６は、円筒部６ａと後底端部６
ｂとから成るほぼ有底円筒形状をしており、その後底端
部６ｂに、扁平な円筒部７ａと中空の左底端部７ｂとか
ら成る有底円筒形状をした差動キャリア７が、一体に延
設されている。ピニオンギヤケース６と差動キャリヤ７
は、後底端部６ｂと左底端部７ｂとが一体に連結され、
ピニオンギヤケース６の円筒形状の中心軸が前後方向に
指向し、差動キャリヤ７の円筒形状の中心軸が左右方向
に指向して、両者は直交している。In the gear case 5, a front half pinion gear case 6 and a rear half differential carrier 7 are integrally formed. The pinion gear case 6 includes a cylindrical portion 6a and a rear bottom end portion 6.
b, and a differential carrier 7 having a bottomed cylindrical shape composed of a flat cylindrical portion 7a and a hollow left bottom end 7b is integrated with a bottom end 6b. Has been extended. Pinion gear case 6 and differential carrier 7
The rear bottom end 6b and the left bottom end 7b are integrally connected,
The central axis of the cylindrical shape of the pinion gear case 6 is oriented in the front-rear direction, the central axis of the cylindrical shape of the differential carrier 7 is oriented in the left-right direction, and both are orthogonal to each other.
【００２０】ピニオンギヤケース６の内部にはヨーク締
結機構２が納められている。また差動キャリヤ７の右側
の円形開口を覆うようにして中空の差動キャリヤカバー
８が右側から合体し、その内部に差動機構３が納められ
る。The yoke fastening mechanism 2 is housed inside the pinion gear case 6. A hollow differential carrier cover 8 is combined from the right side so as to cover the right circular opening of the differential carrier 7, and the differential mechanism 3 is accommodated therein.
【００２１】差動機構３は、差動キャリヤ７および差動
キャリヤカバー８内において、リングギヤ60と一体に左
右合体した差動ケース61が左右方向に指向する中心軸の
周りに回転自在に、玉軸受62、63により支持されてい
る。差動ケース61内で中心軸に直交して架設されたピニ
オンシャフト64に一対のピニオンギヤ65、66が回転自在
に軸支されている。そして各ピニオンギヤ65、65にとも
にベベルギヤ式に噛み合う一対のサイドギヤ66、66がピ
ニオンシャフト64を挟んで左右にそれぞれ回転自在に支
持されている。この各サイドギヤ66、66に左右のアクス
ル軸がそれぞれスプライン嵌合されている。The differential mechanism 3 includes a differential case 61 integrally formed with the ring gear 60 in the differential carrier 7 and the differential carrier cover 8. The differential case 61 is rotatable about a central axis oriented in the left-right direction. It is supported by bearings 62 and 63. A pair of pinion gears 65 and 66 are rotatably supported by a pinion shaft 64 installed perpendicularly to the center axis in the differential case 61. A pair of side gears 66, 66 meshing with the respective pinion gears 65, 65 in a bevel gear manner, are rotatably supported on the left and right sides of the pinion shaft 64, respectively. Left and right axle shafts are spline-fitted to the side gears 66, 66, respectively.
【００２２】次にヨーク締結機構２について説明する。Next, the yoke fastening mechanism 2 will be described.
【００２３】駆動ピニオンギヤ12は軸方向に主軸部12
ａ、つば部12ｂ、ギヤ部12ｃ、円柱端部12ｄが前から後
へ順に形成されている。この駆動ピニオンギヤ12のギヤ
部12ｃが前記差動機構３のリングギヤ60に噛み合って、
動力が差動機構３に伝達されるようになっている。The drive pinion gear 12 is axially
a, a collar portion 12b, a gear portion 12c, and a cylindrical end portion 12d are formed in order from the front to the rear. The gear portion 12c of the drive pinion gear 12 meshes with the ring gear 60 of the differential mechanism 3,
Power is transmitted to the differential mechanism 3.
【００２４】ピニオンギヤケース６の後底端部６ｂは、
外径が２段階に縮小されて後方に先細に形成されてい
る。そしてその後端の内径が縮小された部分にころ軸受
13が介装されて、駆動ピニオンギヤ12の円柱端部12ｄが
軸支されている。また、アウタレースがロックナット15
によりピニオンギヤケース６の円筒部６ａに固定された
玉軸受14のインナレースに、駆動ピニオンギヤ12の主軸
部12ａが圧入されている。こうして駆動ピニオンギヤ12
は、ころ軸受13と玉軸受14によりピニオンギヤケース６
に、間接的には車体に、回転自在に軸支される。The rear bottom end 6b of the pinion gear case 6 is
The outer diameter is reduced in two steps and is tapered rearward. Roller bearings at the rear end where the inside diameter is reduced
13 is interposed, and a cylindrical end portion 12d of the drive pinion gear 12 is pivotally supported. Also, the outer race is lock nut 15
As a result, the main shaft portion 12a of the drive pinion gear 12 is pressed into the inner race of the ball bearing 14 fixed to the cylindrical portion 6a of the pinion gear case 6. Thus, the drive pinion gear 12
The pinion gear case 6 is composed of a roller bearing 13 and a ball bearing 14.
In addition, it is rotatably supported by the vehicle body indirectly.
【００２５】駆動ピニオンギヤ12の主軸部12ａの先端に
は外歯スプライン12ｅが形成されている。An external spline 12e is formed at the tip of the main shaft portion 12a of the drive pinion gear 12.
【００２６】17はヨーク部材であって、枝分かれした前
端部には、図示しないエンジン側ヨーク部材と結合する
クロスジョイントを挿入する穴17ａが設けられている。
そして後端は主軸部17ｂが円筒状に延びて凹所17ｃを形
成している。その凹所17ｃには内歯スプライン17ｄが形
成され、前記駆動ピニオンギヤ12の主軸部12ａ先端の外
歯スプライン12ｅと結合する。また、この両スプライン
12ｅ、17ｄの結合部には、駆動ピニオンギヤ12とヨーク
部材17との軸方向摺動を阻止するストッパーリング19が
挿入される。Reference numeral 17 denotes a yoke member, and a branched front end is provided with a hole 17a for inserting a cross joint for coupling to an engine-side yoke member (not shown).
At the rear end, a main shaft portion 17b extends cylindrically to form a recess 17c. An internal spline 17d is formed in the recess 17c, and is connected to the external spline 12e at the tip of the main shaft portion 12a of the drive pinion gear 12. Also, both splines
A stopper ring 19 for preventing the drive pinion gear 12 and the yoke member 17 from sliding in the axial direction is inserted into the connection portion between 12e and 17d.
【００２７】前記玉軸受14のインナレースは、ヨーク部
材17の主軸部17ｂ先端面と駆動ピニオンギヤ12のつば部
12ｂとで挟持される。またヨーク部材17の主軸部17ｂ外
側面とピニオンギヤケース６の円筒部６ａ内面との間に
はシール部材20が装着される。The inner race of the ball bearing 14 includes a tip end surface of a main shaft portion 17 b of a yoke member 17 and a flange portion of the drive pinion gear 12.
12b. A seal member 20 is mounted between the outer surface of the main shaft portion 17b of the yoke member 17 and the inner surface of the cylindrical portion 6a of the pinion gear case 6.
【００２８】本実施形態の歯車伝達装置はこのように構
成されていて、駆動ピニオンギヤ12とヨーク部材17との
結合を、圧入とストッパーリング19の挿入のみで行な
い、従来のようなロックナット等を使用しないので、そ
の分のねじ成形が不要になって加工費を低減でき、組立
工数も削減される。さらに、駆動ピニオンギヤ12の諸元
を変更することにより、たとえば、すぐ歯の傘歯車によ
り、駆動ピニオンギヤ12の心向荷重を小さくしたり、荷
重方向を一方向とすることができるから、一方向だけの
強度を考慮すれば良く、圧入とストッパーリング挿入だ
けでも、駆動ピニオンギヤ12とヨーク部材17との軸方向
摺動を十分に阻止することができる。また荷重方向が一
方向のみであり振動、耐久性に有利である。The gear transmission of this embodiment is constructed as described above. The drive pinion gear 12 and the yoke member 17 are connected only by press-fitting and inserting the stopper ring 19, and a conventional lock nut or the like is used. Since it is not used, screw forming is not necessary, so that the processing cost can be reduced and the number of assembling steps can be reduced. Further, by changing the specifications of the drive pinion gear 12, for example, by using a bevel gear with a straight tooth, the center load of the drive pinion gear 12 can be reduced or the load direction can be set in one direction. In this case, it is sufficient to consider the strength of the drive pinion, and the sliding of the drive pinion gear 12 and the yoke member 17 in the axial direction can be sufficiently prevented only by press-fitting and inserting the stopper ring. Also, the load direction is only one direction, which is advantageous for vibration and durability.
【００２９】また本実施形態の差動歯車装置では、駆動
ピニオンギヤ12とヨーク部材17との結合にロックナット
を用いないので、ヨーク部材17と図示しない相手方のエ
ンジン側ヨーク部材とをあらかじめ結合した後に、それ
らを駆動ピニオンギヤ12に取り付けることができ、組立
作業の自由度が増して、コストを低減できる。Further, in the differential gear device of the present embodiment, since the lock nut is not used for connecting the drive pinion gear 12 and the yoke member 17, after the yoke member 17 and the other engine side yoke member (not shown) are connected in advance. They can be attached to the drive pinion gear 12, which increases the degree of freedom of the assembling operation and reduces the cost.
【００３０】さらに本実施形態においては、ヨーク部材
17の凹所17ｃがヨーク主軸部17ｂの先端面以外には開口
せず、ヨーク部材17でピニオンギヤ主軸部12ａの先端を
密閉する状態になっているので、凹所17ｃに塵等の異物
が浸入する心配がなく、シール材が不要である。Further, in this embodiment, the yoke member
Since the recess 17c of 17 does not open except at the tip surface of the yoke main shaft portion 17b and the yoke member 17 seals the front end of the pinion gear main shaft portion 12a, foreign matter such as dust enters the recess 17c. There is no need to worry about sealing, and no sealing material is required.
【００３１】[0031]
【図１】図１は本発明に係る差動歯車装置の実施の一形
態を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing one embodiment of a differential gear device according to the present invention.
【図２】図２は従来の差動歯車装置の一例を示す縦断面
図である。FIG. 2 is a longitudinal sectional view showing an example of a conventional differential gear device.
２…ヨーク締結機構、３…差動機構、５…ギヤケース、
６…ピニオンギヤケース、６ａ…円筒部、６ｂ…後底端
部、７…差動キャリヤ、７ａ…円筒部、７ｂ…左底端
部、８…差動キャリヤカバー、12…駆動ピニオンギヤ、
12ａ…主軸部、12ｂ…つば部、12ｃ…ギヤ部、12ｄ…円
柱端部、12ｅ…外歯スプライン、13…ころ軸受、14…玉
軸受、15…ロックナット、17…ヨーク部材、17ａ…クロ
スジョイント穴、17ｂ…主軸部、17ｃ…凹所、17ｄ…内
歯スプライン、19…ストッパーリング、20…シール部
材、60…リングギヤ、61…差動ケース、64…ピニオンシ
ャフト、65…ピニオンギヤ、66…サイドギヤ。2 ... yoke fastening mechanism, 3 ... differential mechanism, 5 ... gear case,
Reference numeral 6: pinion gear case, 6a: cylindrical portion, 6b: rear bottom end, 7: differential carrier, 7a: cylindrical portion, 7b: left bottom end, 8: differential carrier cover, 12: drive pinion gear,
12a: Main shaft, 12b: Collar, 12c: Gear, 12d: Cylindrical end, 12e: External spline, 13: Roller bearing, 14: Ball bearing, 15: Lock nut, 17: Yoke member, 17a: Cross Joint hole, 17b: Main shaft, 17c: Concavity, 17d: Internal spline, 19: Stopper ring, 20: Seal member, 60: Ring gear, 61: Differential case, 64: Pinion shaft, 65: Pinion gear, 66 ... Side gear.
Claims (3)
がり軸受と、該ころがり軸受のインナレースに圧入さ
れ、先端に外歯スプラインが設けられた駆動ピニオンギ
ヤ主軸部と、先端面に凹所を有し、同凹所に設けられた
内歯スプラインが上記外歯スプラインに係合するヨーク
主軸部と、上記スプライン係合部に取り付けられたスト
ッパーリングを備え、軸方向に位置決めされて連結され
たことを特徴とする歯車伝達装置。1. A rolling bearing having an outer race mounted on a case side, a drive pinion gear main shaft portion press-fitted into an inner race of the rolling bearing and having an external spline at a tip, and a recess at a tip surface. The internal spline provided in the recess includes a yoke main shaft portion that engages with the external spline, and a stopper ring attached to the spline engagement portion, and is positioned and connected in the axial direction. Characterized gear transmission.
に開口せず、上記ピニオンギヤ主軸部先端を密閉してい
ることを特徴とする請求項１記載の歯車伝達装置。2. The gear transmission according to claim 1, wherein the recess does not open except at the end face of the yoke main shaft portion, and seals the front end of the pinion gear main shaft portion.
いは、すぐ歯傘歯車(ストレートベベルギヤ)により駆動
伝達されることを特徴とする請求項１又は、２記載の歯
車伝達装置。3. The gear transmission according to claim 1, wherein the drive pinion gear is meshed with the driven gear by a straight bevel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000091378A JP4549483B2 (en) | 2000-03-29 | 2000-03-29 | Gear transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000091378A JP4549483B2 (en) | 2000-03-29 | 2000-03-29 | Gear transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001280445A true JP2001280445A (en) | 2001-10-10 |
| JP4549483B2 JP4549483B2 (en) | 2010-09-22 |
Family
ID=18606844
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000091378A Expired - Fee Related JP4549483B2 (en) | 2000-03-29 | 2000-03-29 | Gear transmission device |
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| Country | Link |
|---|---|
| JP (1) | JP4549483B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012171602A (en) * | 2011-02-24 | 2012-09-10 | Suzuki Motor Corp | Power transmission device of outboard motor |
| JP2012171603A (en) * | 2011-02-24 | 2012-09-10 | Suzuki Motor Corp | Power transmission device of outboard motor |
| JP2020138319A (en) * | 2019-03-01 | 2020-09-03 | 達闥科技（北京）有限公司Ｃｌｏｕｄｍｉｎｄｓ （Ｂｅｉｊｉｎｇ） Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．， Ｌｔｄ． | Robot wrist structure and robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6072733U (en) * | 1983-10-26 | 1985-05-22 | いすゞ自動車株式会社 | Vehicle final gear |
| JPS6185517U (en) * | 1984-11-12 | 1986-06-05 | ||
| JPS644944U (en) * | 1987-06-29 | 1989-01-12 | ||
| JPH0456922U (en) * | 1990-09-26 | 1992-05-15 | ||
| JPH04122224U (en) * | 1991-04-18 | 1992-11-02 | 三菱自動車工業株式会社 | sleeve yoke |
| JPH07286657A (en) * | 1994-04-14 | 1995-10-31 | Hino Motors Ltd | Oil seal device of differential input shaft support part |
-
2000
- 2000-03-29 JP JP2000091378A patent/JP4549483B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6072733U (en) * | 1983-10-26 | 1985-05-22 | いすゞ自動車株式会社 | Vehicle final gear |
| JPS6185517U (en) * | 1984-11-12 | 1986-06-05 | ||
| JPS644944U (en) * | 1987-06-29 | 1989-01-12 | ||
| JPH0456922U (en) * | 1990-09-26 | 1992-05-15 | ||
| JPH04122224U (en) * | 1991-04-18 | 1992-11-02 | 三菱自動車工業株式会社 | sleeve yoke |
| JPH07286657A (en) * | 1994-04-14 | 1995-10-31 | Hino Motors Ltd | Oil seal device of differential input shaft support part |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012171602A (en) * | 2011-02-24 | 2012-09-10 | Suzuki Motor Corp | Power transmission device of outboard motor |
| JP2012171603A (en) * | 2011-02-24 | 2012-09-10 | Suzuki Motor Corp | Power transmission device of outboard motor |
| JP2020138319A (en) * | 2019-03-01 | 2020-09-03 | 達闥科技（北京）有限公司Ｃｌｏｕｄｍｉｎｄｓ （Ｂｅｉｊｉｎｇ） Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．， Ｌｔｄ． | Robot wrist structure and robot |
| US11541555B2 (en) | 2019-03-01 | 2023-01-03 | Cloudminds (Beijing) Technologies Co., Ltd. | Robot wrist structure and robot |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4549483B2 (en) | 2010-09-22 |
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