JPH0324925Y2 - - Google Patents
Info
- Publication number
- JPH0324925Y2 JPH0324925Y2 JP1985075691U JP7569185U JPH0324925Y2 JP H0324925 Y2 JPH0324925 Y2 JP H0324925Y2 JP 1985075691 U JP1985075691 U JP 1985075691U JP 7569185 U JP7569185 U JP 7569185U JP H0324925 Y2 JPH0324925 Y2 JP H0324925Y2
- Authority
- JP
- Japan
- Prior art keywords
- differential
- drive pinion
- oil
- gear
- ring gear
- 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.)
- Expired
Links
- 239000003921 oil Substances 0.000 description 31
- 238000005461 lubrication Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Landscapes
- Motor Power Transmission Devices (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、デフアレンシヤル装置の改良に関
するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to improvement of a differential device.
自動車のデフアレンシヤル装置内の潤滑はデフ
キヤリア内の底部に溜つた潤滑オイルをリングギ
ヤ等で掻き上げて潤滑を要する各摺動部に導き到
達させて行つている。この場合、デフキヤリア内
のドライブピニオンで駆動されるリングギヤの回
転方向が、ドライブピニオンとの噛み合い部にお
いて下向き方向、すなわち噛み合い部と反対側の
円周では上向き方向となつていて前記オイルの掻
き上げが円滑、大量に行われ、これでデフキヤリ
ア天井に付着した油滴が天井面を流れてその一部
が、ドライブピニオンを支持するベアリングの上
部に設けられているオイル流路に流入してベアリ
ングに達する形態のものが多い。しかし一部には
上記と反対の回転方向を強いられるものがあつて
潤滑に難点を持つていた。すなわち、四輪駆動車
においてFRベースのフロントデフ装置あるいは
RRベースのリヤデフ装置等においてはリングギ
ヤのドライブピニオンとの噛み合い部で上向き方
向にリングギヤが回転しており、ここではリング
ギヤが一旦オイルを掻き上げるが、掻き上げ方向
が前記と逆であるため、前記デフキヤリアの天井
側方のベアリング上部のオイル流路に入りこむオ
イルは前記回転方向の場合に比べて極端に少なく
なつて潤滑不良事態を招く恐れがあり難点となつ
ていた。
Lubricating the inside of an automobile's differential gear is accomplished by scooping up lubricating oil collected at the bottom of the differential carrier using a ring gear or the like and guiding it to each sliding part that requires lubrication. In this case, the rotation direction of the ring gear driven by the drive pinion in the differential carrier is downward at the meshing part with the drive pinion, that is, upward at the circumference on the opposite side of the meshing part, so that the oil is not scraped up. This is done smoothly and in large quantities, and the oil droplets adhering to the ceiling of the differential carrier flow down the ceiling surface and some of them flow into the oil flow path provided at the top of the bearing that supports the drive pinion and reach the bearing. There are many forms. However, some of them are forced to rotate in the opposite direction to that described above, which poses problems in lubrication. In other words, in four-wheel drive vehicles, FR-based front differential equipment or
In RR-based rear differential devices, etc., the ring gear rotates upward at the meshing part with the ring gear's drive pinion, and here the ring gear once scrapes up oil, but the scraping up direction is opposite to the above, so The amount of oil that enters the oil flow path above the bearing on the side of the ceiling of the differential carrier is extremely less than in the case of the rotation direction, which poses a problem because it may lead to poor lubrication.
この対策として実開昭59−118849に開示されて
いるように逆転式ギヤ機構を用いたオイル掻き上
げ装置をデフケース外周に装着とした装置、ある
いは特公昭50−22766に開示されているようにデ
フキヤリア側方にデフケース側方からベアリング
側方までのオイル流路を備えて、デフケースによ
る掻き上げオイルをドライブピニオン支持壁を介
して導入とするものがある。 As a countermeasure to this problem, a device that uses a reversing gear mechanism to scrape up oil is attached to the outer circumference of the differential case, as disclosed in Utility Model Publication No. 59-118849, or a differential carrier as disclosed in Japanese Patent Publication No. 50-22766. Some oil pumps are equipped with an oil flow path from the side of the differential case to the side of the bearing, and the oil scraped up by the differential case is introduced through the drive pinion support wall.
しかしながら、前者の装置は構造が複雑であり
コスト高、重量増を招き、一方、後者の装置も長
いオイル流路を必要として大型化、重量増の要因
となり、かつデフキヤリア壁面に設けられたオイ
ル受入口はデフケースのオイル掻き上げ方向に対
して位置、方向とも異なる構成であり、オイル流
入効率が極めて低い難点がある。 However, the former device has a complicated structure, resulting in high costs and increased weight.On the other hand, the latter device also requires a long oil flow path, which causes an increase in size and weight. The inlet has a configuration that is different in both position and direction with respect to the oil scooping direction of the differential case, and there is a drawback that the oil inflow efficiency is extremely low.
又、オイルを導く際にケースとスクレーパは摺
動しているのでオイルの劣化を早めてしまう。 Furthermore, since the case and the scraper are sliding when guiding the oil, the oil deteriorates more quickly.
そこで、この考案は、リングギヤがドライブピ
ニオンとの噛み合い部において上向き方向に回転
するデフアレンシヤル装置において、コスト増、
重量増等の問題なしにドライブピニオンを支持す
るベアリングに充分な潤滑オイルを供給すること
ができるデフアレンシヤル装置を提供するもので
ある。
Therefore, this idea increases costs and increases costs in a differential device in which the ring gear rotates upward at the part where it engages with the drive pinion.
To provide a differential device that can supply sufficient lubricating oil to a bearing that supports a drive pinion without problems such as increased weight.
前記目的を達成するために、この考案において
は、デフキヤリアにベアリングを介して回転自在
に支持されたドライブピニオンと、これによつて
駆動されるリングギヤが装着されたデフケースを
有し、前記リングギヤの回転方向が前記ドライブ
ピニオンとの噛合い部で上向きとなつたデフアレ
ンシヤル装置において、前記デフキヤリアの側壁
であつてドライブピニオンに対し前記噛合い部の
反対側のほぼ同じ高さの位置に開口２１を設ける
と共に、前記ベアリングの取付部付近のデフキヤ
リアの側壁に開口２３を設け、前記両開口を結ぶ
オイル流路２５を設けた構成としている。
In order to achieve the above object, this invention has a differential case equipped with a drive pinion rotatably supported by a differential carrier via a bearing, and a ring gear driven by the drive pinion, and the rotation of the ring gear is In a differential device in which the direction is upward at the meshing portion with the drive pinion, an opening 21 is formed in a side wall of the differential carrier at a position opposite to the meshing portion with respect to the drive pinion at approximately the same height. In addition, an opening 23 is provided in the side wall of the differential carrier near the mounting portion of the bearing, and an oil passage 25 is provided to connect both the openings.
以下、第１図、第２図の図面を参照しながらこ
の考案の一実施例を詳細に説明する。
Hereinafter, one embodiment of this invention will be described in detail with reference to the drawings of FIGS. 1 and 2.
デフアレンシヤル装置１のデフケース３の左右
をベアリングで回転自在に支持しているデフキヤ
リヤ５の−側、図面の上方にベアリング７ａ，７
ｂを介して回転自在に支持されたドライブピニオ
ン９があり、図外のエンジン側伝導軸からの入力
で駆動回転される。ドライブピニオン９のデフケ
ース３側の端部にはギヤ部１１が設けられてい
て、これと噛み合うリングギヤ１３を介してデフ
ケース３を回転する。この場合、リングギヤ１３
の回転方向はギヤ部１１との噛み合い部において
上向き方向となつている。デフケース３内部には
ピニオンシヤフト１５があり、ピニオンシヤフト
１５に回転自在にピニオンギヤ１７が軸支され、
ピニオンギヤ１７の左右にこれと噛み合う一対の
サイドギヤ１９ａ，１９ｂがあり、図外の出力軸
がサイドギヤ１９ａ，１９ｂから左右に夫々延設
されて図外の車輪に連結されている。更に、前記
ギヤ部１１の側方のデフキヤリア５に、ギヤ部１
１とほぼ同じ高さで開口２１が設けられ、又ドラ
イブピニオン９のベアリング７ａ，７ｂの中間部
付近の側方のデフキヤリア５に、開口２３が設け
られ、これら開口２１，２３を結んでトンネル状
のオイル流路２５がデフキヤリア５の外側に突出
した形で設けられている。 On the negative side of the differential carrier 5, which rotatably supports the left and right sides of the differential case 3 of the differential gear device 1, bearings 7a and 7 are located above the figure.
There is a drive pinion 9 that is rotatably supported via the pinion b, and is driven and rotated by input from an engine-side transmission shaft (not shown). A gear part 11 is provided at the end of the drive pinion 9 on the side of the differential case 3, and the differential case 3 is rotated via a ring gear 13 that meshes with the gear part 11. In this case, the ring gear 13
The direction of rotation of the gear member 11 is upward at the meshing portion with the gear portion 11. There is a pinion shaft 15 inside the differential case 3, and a pinion gear 17 is rotatably supported on the pinion shaft 15.
There are a pair of side gears 19a, 19b meshing with the pinion gear 17 on the left and right sides, and output shafts (not shown) extend left and right from the side gears 19a, 19b, respectively, and are connected to wheels (not shown). Further, a gear portion 1 is attached to the differential carrier 5 on the side of the gear portion 11.
1, and an opening 23 is provided in the differential carrier 5 on the side near the middle of the bearings 7a, 7b of the drive pinion 9, and these openings 21, 23 are connected to form a tunnel-like structure. An oil flow path 25 is provided in a manner projecting to the outside of the differential carrier 5.
このように構成されたデフアレンシヤル装置を
使用する場合、従来と同様デフキヤリア５に前記
リングギヤ１３の周囲下方が浸漬するレベルにま
で潤滑油を入れてから用いる。ギヤ部１１の駆動
回転でリングギヤ１３が回転し、デフケース３が
回りピニオンギヤ１７、サイドギヤ１９ａ，１９
ｂを介して図外の出力軸を回転させて図外の車輪
が駆動され回転する。そして前記ドライブピニオ
ンのベアリング７ａ，７ｂの潤滑は、リングギヤ
１３によつて掻き上げられた潤滑油がすぐ上方で
噛み合つているギヤ部１１により側方のデフキヤ
リヤ５の開口２１に直接飛び込んだり、デフキヤ
リヤ５の側壁をつたつて、開口２１に入り、オイ
ル流路２５を流れて開口２３からベアリング７
ａ，７ｂの中間部に流れ落ちる。そしてベアリン
グ７ａ，７ｂに達し潤滑を行なう。以上のように
ギヤ部１１の側方からオイル流路２５を経てベア
リング７ａ，７ｂに達することで、従来のように
逆回転のリングギヤではね上げたオイルのごく一
部がデフキヤリヤ５の天井部内面を伝つてベアリ
ング上部のオイル通路に入り、ここからベアリン
グに達する状態に比較すると従来ではオイル供給
が不十分な程低速回転でもオイル供給が可能とな
るので格段にオイル量が増し、確実化される。
又、ギヤ部１１の側方から２個のベアリング７
ａ，７ｂの中間部までのオイル流路２５とした場
合には、流路長が短くて済み、従つてオイル流路
を含んだデフキヤリヤの製作は容易であり、重量
も変わらない。更にギヤ部１１によるオイル飛散
方向に直面した開口で効率よくオイル受入ができ
る。 When using the differential device configured in this way, lubricating oil is poured into the differential carrier 5 to a level that the lower circumference of the ring gear 13 is immersed therein, as in the conventional case. The ring gear 13 rotates due to the drive rotation of the gear part 11, and the differential case 3 rotates to the pinion gear 17 and side gears 19a, 19.
By rotating an output shaft (not shown) via the shaft (b), wheels (not shown) are driven and rotated. The bearings 7a and 7b of the drive pinion are lubricated by the lubricating oil scraped up by the ring gear 13 directly jumping into the opening 21 of the differential carrier 5 on the side by the gear part 11 meshing with the gear part 11 immediately above the differential carrier. 5, enters the opening 21, flows through the oil passage 25, and enters the bearing 7 from the opening 23.
It flows down to the middle part of a and 7b. It then reaches the bearings 7a and 7b and lubricates them. As described above, by reaching the bearings 7a and 7b from the side of the gear part 11 through the oil flow path 25, a small portion of the oil splashed up by the counter-rotating ring gear as in the conventional case can rub against the inner surface of the ceiling part of the differential carrier 5. Compared to the situation where the oil enters the oil passage at the top of the bearing and reaches the bearing from there, oil can be supplied even at low speeds where conventional oil supply was insufficient, so the amount of oil is greatly increased and is more reliable.
Also, two bearings 7 are inserted from the sides of the gear part 11.
In the case where the oil flow path 25 is made to extend to the intermediate portion between a and 7b, the length of the flow path can be shortened, and therefore, it is easy to manufacture a differential carrier including the oil flow path, and the weight does not change. Furthermore, the opening facing the direction of oil scattering by the gear portion 11 allows efficient oil reception.
〔考案の効果〕
以上、説明したように、この考案のデフアレン
シヤル装置によれば、デフキヤリヤの一部に開口
とオイル流路を備える簡単な構成により、ベアリ
ング潤滑に問題ありとされていた、リングギヤが
ドライブピニオンとの噛み合い部で上向き方向に
回転するデフアレンシヤル装置において、ドライ
ブピニオンを支持するベアリングに充分な潤滑油
を供給することができるとともにコスト増や重量
増を招くことなしに確実な潤滑が可能となる。[Effects of the invention] As explained above, according to the differential device of this invention, due to the simple structure in which a part of the differential carrier is provided with an opening and an oil flow path, there were problems with bearing lubrication. In a differential device where the ring gear rotates upward at the part where it engages with the drive pinion, it is possible to supply sufficient lubricant to the bearings that support the drive pinion, and to provide a reliable system without increasing cost or weight. Lubrication becomes possible.
第１図はこの考案のデフアレンシヤル装置の一
実施例の概略水平断面図、第２図は第１図−
矢視断面図である。
主要な図面符号の説明、１……デフアレンシヤ
ル装置、３……デフケース、５……デフキヤリ
ヤ、７……ベアリング、９……ドライブピニオ
ン、１１……ギヤ部、１３……リングギヤ、２５
……オイル流路。
Fig. 1 is a schematic horizontal sectional view of one embodiment of the differential device of this invention, and Fig. 2 is a schematic horizontal sectional view of an embodiment of the differential device of this invention.
It is an arrow sectional view. Explanation of main drawing symbols, 1...Differential device, 3...Differential case, 5...Differential carrier, 7...Bearing, 9...Drive pinion, 11...Gear section, 13...Ring gear, 25
...Oil flow path.
Claims (1)
支持されたドライブピニオンと、これによつて駆
動されるリングギヤが装着されたデフケースを有
し、前記リングギアの回転方向が前記ドライブピ
ニオンとの噛合い部で上向きとなつたデフアレン
シヤル装置において、前記デフキヤリアの側壁で
あつてドライブピニオンに対し前記噛合い部の反
対側のほぼ同じ高さの位置に開口２１を設けると
共に、前記ベアリングの取付部付近のデフキヤリ
アの側壁に開口２３を設け、前記両開口を結ぶオ
イル流路２５を設けたことを特徴とするデフアレ
ンシヤル装置。 It has a differential case in which a drive pinion rotatably supported by a differential carrier via a bearing and a ring gear driven by the drive pinion are mounted, and the rotation direction of the ring gear is directed upward at the meshing part with the drive pinion. In the differential gear that has become so popular, an opening 21 is provided in the side wall of the differential carrier at a position on the opposite side of the meshing portion to the drive pinion at approximately the same height, and an opening 21 is provided in the side wall of the differential carrier near the mounting portion of the bearing. A differential device characterized in that an opening 23 is provided in a side wall, and an oil flow path 25 is provided that connects the two openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985075691U JPH0324925Y2 (en) | 1985-05-23 | 1985-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985075691U JPH0324925Y2 (en) | 1985-05-23 | 1985-05-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61191548U JPS61191548U (en) | 1986-11-28 |
| JPH0324925Y2 true JPH0324925Y2 (en) | 1991-05-30 |
Family
ID=30617146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985075691U Expired JPH0324925Y2 (en) | 1985-05-23 | 1985-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324925Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4613595B2 (en) * | 2004-12-07 | 2011-01-19 | 日産自動車株式会社 | Differential equipment |
| JP6384466B2 (en) | 2015-12-16 | 2018-09-05 | トヨタ自動車株式会社 | Differential |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54135432U (en) * | 1978-03-14 | 1979-09-20 |
-
1985
- 1985-05-23 JP JP1985075691U patent/JPH0324925Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61191548U (en) | 1986-11-28 |
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