JPS58137644A - Differential gear apparatus - Google Patents

Differential gear apparatus

Info

Publication number
JPS58137644A
JPS58137644A JP1745982A JP1745982A JPS58137644A JP S58137644 A JPS58137644 A JP S58137644A JP 1745982 A JP1745982 A JP 1745982A JP 1745982 A JP1745982 A JP 1745982A JP S58137644 A JPS58137644 A JP S58137644A
Authority
JP
Japan
Prior art keywords
gear
differential case
pinion mate
differential
gears
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
JP1745982A
Other languages
Japanese (ja)
Inventor
Hitoshi Watanabe
仁 渡辺
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP1745982A priority Critical patent/JPS58137644A/en
Publication of JPS58137644A publication Critical patent/JPS58137644A/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
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • 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
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • F16H2048/082—Differential gearings with gears having orbital motion comprising bevel gears characterised by the arrangement of output 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
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • F16H2048/087—Differential gearings with gears having orbital motion comprising bevel gears characterised by the pinion gears, e.g. their type or arrangement

Abstract

PURPOSE:To protect the inner surface of a differential case against wear, by forming an oil passage or passages at least in one of pinion mate gears and side gears in the manner that the oil passages are extended from the front surface to the rear surface of each gear. CONSTITUTION:A differential gear apparatus is constituted by disposing a plurality of pinion mate gears 13 and a plurality of side gears 14 in a differential case 2 in the manner that they are held in mesh with each other. Rear surfaces 13a, 14a respectively of the pinion mate gears 13 and the side gears 14 are kept in sliding contact with the inner wall surface 2a of the differential case 2. Here, oil passages 13c are formed in each of the pinion mate gears 13 in the manner that they are extended from an oil sump 14d to the rear surface of the gear 13, while oil passages 14c are formed in each of the side gears 14 in the manner that they are extended from an oil sump 14d to the rear surface of the gear 14.

Description

【発明の詳細な説明】 本発明は、差動歯車装置に関するものである。[Detailed description of the invention] The present invention relates to a differential gear device.

従来の差動歯車装置として例えば第１図に示すようなも
のがある。サイドベアリング１によって図示してないハ
ウジングに回転自在に支持されたデフケース２の内部に
、ピニオンメートギア３及びサイドギア４−がそれぞれ
１対設けられている。As a conventional differential gear device, there is one shown in FIG. 1, for example. A pair of pinion mate gears 3 and a pair of side gears 4- are provided inside a differential case 2 rotatably supported by a housing (not shown) by side bearings 1.

ビニオンメートギア３はデフケース２に固着されたピニ
オンメートシャフト５に回転自在に支持されており、ま
たサイドギア４は２つのビニオンメートギア３と同時に
かみ合っており、ビニオンメートシャフト５と直交する
ドライブシャフト６（仮想線で示しである）を中心軸と
して回転可能である。ビニオンメートギア３の背面３ａ
及びサイドギア４の背面４ａはデフケース２の内部壁面
２ａによって支持されている。The pinion mate gear 3 is rotatably supported by a pinion mate shaft 5 fixed to the differential case 2, and the side gear 4 meshes with the two pinion mate gears 3 at the same time and is perpendicular to the pinion mate shaft 5. It is rotatable around a drive shaft 6 (indicated by a phantom line) as a central axis. Rear side 3a of Binion Mate Gear 3
The back surface 4a of the side gear 4 is supported by the inner wall surface 2a of the differential case 2.

しかしながら、上記のような従来の差動歯車装置にあっ
ては、ピニオンメートギア３の背面３ａ及びサイドギア
４の背面４ａとデフケース２の内部壁面２ａとが密着し
ており、この間に油が流入することが困難であったため
、ピニオンメートギア３及びサイドギア４の回転に、よ
ってデフケース２の内部壁面２ａが摩耗するという問題
点があった。However, in the conventional differential gear device as described above, the back surface 3a of the pinion mate gear 3 and the back surface 4a of the side gear 4 are in close contact with the internal wall surface 2a of the differential case 2, and oil flows between them. As a result, there was a problem in that the internal wall surface 2a of the differential case 2 was worn out due to the rotation of the pinion mate gear 3 and the side gear 4.

本発明は、従来の差動歯車装置における上記ような問題
点に着目してなされたものであり、ピ二オンメートギア
及びサイドギアのいずれか一方又は両方にギアの背面ま
で貫通する袖穴を設けることにより、上記問題点を解消
することを目的としている。The present invention has been made by focusing on the above-mentioned problems in conventional differential gear devices, and by providing a side hole in one or both of the pinion mate gear and the side gear that penetrates to the back of the gear. , aims to solve the above problems.

以下、本発明をその実施例を示す添付図面の第２図に基
づいて説明する。Hereinafter, the present invention will be explained based on FIG. 2 of the accompanying drawings showing an embodiment thereof.

まず、構成について説明する。First, the configuration will be explained.

サイドベアリングｌによって図示してないハウジングに
回転自在に支持されたデフケース２の内部に、ビニオン
メートギア１３及びサイドギア１４がそれぞれ１対設け
られている。ピニオンメートギア１３はデフケース２に
固着されたビニオンメートシャフト５に回転自在に支持
されており、またサイドギア１４は２つのピニオンメー
トギア１３と同時にかみ合っており、ビニオンメートシ
ャフト５と直交するドライブシャフト６（仮想線で示し
である）を中心軸として回転可能である。ピニオンメー
トギア１３の背面１３ａはデフケース２の内部壁面２＆
によって支持されており、またサイドギア！４の背面１
４ａもデフケース２の内部壁面２ａによって支持されて
いる。サイドギア１４には、そのデフケース中央側の面
１４ｂから背面１４ａへ貫通する袖穴１４ｃが設けられ
ている。また、面１４ｂには袖穴１４ｃに連通する油だ
め１４ｄが設けられている。ピニオンメートギア１３に
も同様に袖穴１３ｃ及び油だめ１３ｄが設けられている
。A pair of binion mate gears 13 and a pair of side gears 14 are provided inside the differential case 2, which is rotatably supported by a housing (not shown) by side bearings l. The pinion mate gear 13 is rotatably supported by the pinion mate shaft 5 fixed to the differential case 2, and the side gear 14 meshes with the two pinion mate gears 13 at the same time. It is rotatable around a shaft 6 (indicated by a phantom line) as a central axis. The back surface 13a of the pinion mate gear 13 is connected to the inner wall surface 2 of the differential case 2.
Supported by and also side gear! 4 back 1
4a is also supported by the inner wall surface 2a of the differential case 2. The side gear 14 is provided with a sleeve hole 14c that penetrates from the surface 14b on the center side of the differential case to the back surface 14a. Further, an oil reservoir 14d communicating with the sleeve hole 14c is provided on the surface 14b. Similarly, the pinion mate gear 13 is also provided with a sleeve hole 13c and an oil sump 13d.

次に、作用について説明する。Next, the effect will be explained.

自動車が走行中はデフケース２は常に回転しており、ま
た直進時以外はピニオンメートギア１３及びサイドギア
１４がかみ合って回転する。従って、デフケース２内で
飛散した油は油だめ１３ｄ及び１４ｄにたまり、遠心力
を受けて袖穴１３ｃ及び１４ｃを通って背面１３ａ及び
１４ａに達する。背面１３ａ及び１４ａに達した油は、
背面１３ａ、１４ａとデフケース２の内部壁面２ａとの
間を潤滑する。従って、十分な潤滑油が供給されるため
、デフケース内部壁面は摩耗することなく、十分な耐久
性を有する。While the automobile is running, the differential case 2 is constantly rotating, and the pinion mate gear 13 and side gear 14 are engaged with each other and rotate when the automobile is not traveling straight. Therefore, the oil scattered within the differential case 2 accumulates in the oil reservoirs 13d and 14d, receives centrifugal force, passes through the sleeve holes 13c and 14c, and reaches the rear surfaces 13a and 14a. The oil that has reached the back surfaces 13a and 14a is
The space between the back surfaces 13a, 14a and the inner wall surface 2a of the differential case 2 is lubricated. Therefore, since sufficient lubricating oil is supplied, the inner wall surface of the differential case does not wear out and has sufficient durability.

なお、油だめを設けず袖穴だけをギアに設けても、ある
程度の油量は背面に供給されるから、その油量で十分に
潤滑することができる場合には、特に油だめを設けなく
てもよい、また、上記実施例では、ピニオンメートギア
及びサイドギアの両方に袖穴を設けたが、潤滑条件が厳
しい側のギアにのみ袖穴を設けても差し支えないことは
明らかである。Note that even if only a sleeve hole is provided in the gear without an oil sump, a certain amount of oil will still be supplied to the back, so if that amount of oil can provide sufficient lubrication, there is no need to provide an oil sump. In addition, in the above embodiment, both the pinion mate gear and the side gear were provided with armholes, but it is clear that armholes may be provided only on the gear on the side where the lubrication conditions are more severe.

以上説明してきたように、本発明によると、差動歯車装
置のピニオンメートギア及びサイドギアのいずれか一方
又は両方に、ギアのデフケース中央側の面から背面へ貫
通する袖穴を設けたので、ギア背面へ供給される潤滑油
量が増大し、デフケース内部壁面の摩耗を防止すること
ができるという効果が得られる。また、油だめを設ける
ことに“より、潤滑油量を更に増大することができる。As described above, according to the present invention, one or both of the pinion mate gear and the side gear of the differential gear device is provided with an armhole that penetrates from the center side surface of the differential case of the gear to the back surface. The amount of lubricating oil supplied to the rear surface is increased, and it is possible to prevent wear on the inner wall surface of the differential case. Furthermore, by providing an oil sump, the amount of lubricating oil can be further increased.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の差動歯車装置の断面図、第２図は本発明
による参秦嘩差動歯車装置の断面図である。 １・拳・サイドベアリング、２・・・デフケース、２ａ
・・・内部壁面、５・・φビニオンメートシャフト、６
・魯・ドライブシャフト、１３・・φピニオンメートギ
ア、１３ａｓ・・背面、１３Ｃ・・・袖穴、ｌｌｄ・、
・Φ油だめ、１４・・０サイドギア、１４ａ・・・背面
、１４Ｃ＠・・袖穴、１４ｄ−φ・油だめ。 特許出願人　　　日　産　自　動　車株式会社代理人　
　弁理士　宮内利行 第１図 ２０ ｗＩｈｚ図 ０FIG. 1 is a sectional view of a conventional differential gear device, and FIG. 2 is a sectional view of a differential gear device according to the present invention. 1. Fist/side bearing, 2... Differential case, 2a
...Internal wall surface, 5...φ Binion mate shaft, 6
・Drive shaft, 13...φ pinion mate gear, 13as...back, 13C...sleeve hole, lld...
・Φ oil sump, 14...0 side gear, 14a...back, 14C@...armhole, 14d-φ・oil sump. Patent applicant Nissan Motor Co., Ltd. Agent
Patent Attorney Toshiyuki Miyauchi Figure 1 20 wIhz Figure 0

Claims (1)

【特許請求の範囲】 １、デフケース内部のピニオンメートギア及びサイドギ
アの背面を、デフケース内部壁面に支持する差動歯車装
置において、 ビニオンメートギア及びサイドギアのいずれか一方又は
両方に、ギアのデフケース中央側の面から背面へ貫通す
る袖穴を設けたことを特徴とする差動歯車装置。 ２、ギアのデフケース中央側の面は、袖穴と連通ずる油
だめを有している特許請求の範囲第１項記載の差動歯車
装置。[Claims] 1. In a differential gear device in which the back side of a pinion mate gear and a side gear inside a differential case are supported on the inner wall surface of the differential case, either one or both of the pinion mate gear and the side gear is provided with a pinion mate gear in the center of the differential case of the gear. A differential gear device characterized by having a sleeve hole that penetrates from the side surface to the back surface. 2. The differential gear device according to claim 1, wherein the surface of the gear on the center side of the differential case has an oil sump that communicates with the sleeve hole.
JP1745982A 1982-02-08 1982-02-08 Differential gear apparatus Pending JPS58137644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1745982A JPS58137644A (en) 1982-02-08 1982-02-08 Differential gear apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1745982A JPS58137644A (en) 1982-02-08 1982-02-08 Differential gear apparatus

Publications (1)

Publication Number Publication Date
JPS58137644A true JPS58137644A (en) 1983-08-16

Family

ID=11944598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1745982A Pending JPS58137644A (en) 1982-02-08 1982-02-08 Differential gear apparatus

Country Status (1)

Country Link
JP (1) JPS58137644A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016114241A (en) * 2014-12-12 2016-06-23 武蔵精密工業株式会社 Differential device
US9739364B2 (en) 2014-12-12 2017-08-22 Musashi Seimitsu Industry Co., Ltd. Differential device
JP2021110333A (en) * 2019-12-30 2021-08-02 ジヤトコ株式会社 Power transmission device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1230118A (en) * 1967-11-30 1971-04-28
JPS4922659U (en) * 1972-05-30 1974-02-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1230118A (en) * 1967-11-30 1971-04-28
JPS4922659U (en) * 1972-05-30 1974-02-26

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016114241A (en) * 2014-12-12 2016-06-23 武蔵精密工業株式会社 Differential device
US9739364B2 (en) 2014-12-12 2017-08-22 Musashi Seimitsu Industry Co., Ltd. Differential device
JP2021110333A (en) * 2019-12-30 2021-08-02 ジヤトコ株式会社 Power transmission device

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