JPH062077Y2 - Differential gear lubricator - Google Patents
Differential gear lubricatorInfo
- Publication number
- JPH062077Y2 JPH062077Y2 JP1986082717U JP8271786U JPH062077Y2 JP H062077 Y2 JPH062077 Y2 JP H062077Y2 JP 1986082717 U JP1986082717 U JP 1986082717U JP 8271786 U JP8271786 U JP 8271786U JP H062077 Y2 JPH062077 Y2 JP H062077Y2
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- gear
- pinion
- passage
- guide plate
- 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 - Lifetime
Links
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- General Details Of Gearings (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は差動歯車の潤滑装置に係り、特に差動歯車部
位に潤滑油を強制潤滑させ、差動歯車部位の摩耗や焼付
きの防止を図る差動歯車の潤滑装置に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a lubricating device for a differential gear, and in particular, lubricates the differential gear part with lubricating oil to prevent wear and seizure of the differential gear part. The invention relates to a differential gear lubrication device.
差動歯車を有する差動装置においては、ファイナルギヤ
によって掻き上げられた潤滑油を跳ね掻け方式によって
被潤滑部位に供給し、摩擦抵抗を低減させている。In a differential gear having a differential gear, the lubricating oil scraped up by a final gear is supplied to a lubricated portion by a splashing scraping method to reduce frictional resistance.
ところで、従来の差動歯車の潤滑装置においては、実開
昭５９−１７４４５０号公報の如く、ケーシングの内壁
面部位に連通孔を設け、掻き上げられた潤滑油をシムプ
レートの外側へ流入させているものがある。By the way, in a conventional differential gear lubrication device, as in Japanese Utility Model Laid-Open No. 59-174450, a communication hole is provided in the inner wall surface portion of the casing to allow the scraped lubricating oil to flow to the outside of the shim plate. There is something.
しかし、ファイナルギヤによって掻き上げられた潤滑油
は跳ね掻け方式（自然潤滑方式）によって被潤滑部位に
供給されており、前記ケーシング内の中心部位、例えば
差動歯車部位に充分な潤滑油を供給させることができ
ず、差動歯車部位に摩耗や焼付きが生ずるという不都合
がある。However, the lubricating oil scraped up by the final gear is supplied to the lubricated part by the splash and scratch method (natural lubrication method), and sufficient lubricating oil is supplied to the central part in the casing, for example, the differential gear part. However, there is an inconvenience that abrasion and seizure occur in the differential gear portion.
そこでこの考案の目的は、上述不都合を除去するため
に、ケース本体の一方の内壁面に複数本の補強リブをド
ライブシャフトを中心として放射状に形成し、上方部位
の２本の補強リブの下方間に潤滑油を誘導収集する第１
ガイド板を覆設し、ケース本体の一方の内壁面と第１ガ
イド板間に第１収集部を形成し、第１収集部下部に第１
潤滑油流路の上流側端部を連通して設け、第１潤滑油流
路途中にファイナルギヤの回転中心側にドライブシャフ
トの軸受を通過した潤滑油をデファレンシャルケース内
に流入させる第２ガイド板を設け、第１収集部からの潤
滑油をピニオンシャフト外周面に供給すべく第１潤滑油
流路を配設し、第１潤滑油流路と対峙する部位に第２潤
滑油流路を配設し、第１収集部からの潤滑油をドライブ
シャフト内の油流路を経てピニオンギヤ及びピニオンシ
ャフト外周面に供給すべく第３潤滑油流路を配設し、ケ
ース本体の一方の内壁面と対峙する部位の他方の内壁面
に潤滑油を誘導収集する第３ガイド板を配設し、第３ガ
イド板と他方の傾斜した内壁面間に第２収集部を形成
し、誘導収集した第２収集部の潤滑油をドライブシャフ
ト内の油流路を経てピニオンギヤ及びピニオンシャフト
外周面に供給すべく第４潤滑油流路を配設したことによ
り、差動歯車部位に潤滑油を強制潤滑させることがで
き、差動歯車部位の摩耗や焼付きを防止し得る差動歯車
の潤滑装置を実現するにある。Therefore, in order to eliminate the above-mentioned inconvenience, the object of the present invention is to form a plurality of reinforcing ribs radially on one inner wall surface of the case main body with the drive shaft as a center, and to provide a space between the two reinforcing ribs in the upper part below the reinforcing ribs. First to collect and collect lubricating oil
The guide plate is covered, the first collecting part is formed between one inner wall surface of the case body and the first guide plate, and the first collecting part is provided at the lower part of the first collecting part.
A second guide plate provided so as to communicate with the upstream end of the lubricating oil flow passage and allowing the lubricating oil that has passed through the bearing of the drive shaft to the rotation center side of the final gear to flow into the differential case in the middle of the first lubricating oil flow passage. Is provided, the first lubricating oil flow passage is arranged to supply the lubricating oil from the first collecting portion to the outer peripheral surface of the pinion shaft, and the second lubricating oil flow passage is arranged at a portion facing the first lubricating oil flow passage. And a third lubricating oil passage is provided to supply the lubricating oil from the first collecting portion to the pinion gear and the outer peripheral surface of the pinion shaft through the oil passage in the drive shaft. A third guide plate for guiding and collecting the lubricating oil is arranged on the other inner wall surface of the facing portion, and a second collecting portion is formed between the third guide plate and the other inclined inner wall surface to collect and collect the second oil. Lubricating oil in the collecting part is passed through the oil passage in the drive shaft. By arranging the fourth lubricating oil passage to supply to the outer peripheral surface of the union gear and the pinion shaft, the lubricating oil can be forcibly lubricated to the differential gear portion, and the abrasion and seizure of the differential gear portion are prevented. This is to realize a differential gear lubrication device.
この目的を達成するためにこの考案は、ケース本体内の
ピニオンギヤ及びピニオンシャフトからなる差動歯車を
有する差動装置において、この差動装置のケース本体の
一方に垂設される内壁面に複数本の補強リブをドライブ
シャフトを中心として放射状に形成し、上方部位の２本
の補強リブの下方間にファイナルギヤにより掻き上げら
れ流下する潤滑油を誘導収集する第１ガイド板を覆設
し、前記ケース本体の一方の内壁面と第１ガイド板間に
第１収集部を形成し、この第１収集部下部に第１潤滑油
流路の上流側端部を連通して設け、この第１潤滑油流路
途中にファイナルギヤの回転中心側にドライブシャフト
の軸受を通過した潤滑油をデファレンシャルケース内に
流入させる第２ガイド板を設け、前記第１収集部からの
潤滑油をピニオンシャフト外周面に供給すべく第１潤滑
油流路を配設し、前記第１収集部からの潤滑油をピニオ
ンシャフト内の油流路に供給すべく前記第１潤滑油流路
と対峙する部位に第２潤滑油流路を配設し、前記第１収
集部からの潤滑油をドライブシャフト内の油流路を経て
ピニオンギヤ及びピニオンシャフト外周面に供給すべく
第３潤滑油流路を配設し、前記ケース本体の一方の内壁
面と対峙する部位の他方の傾斜した内壁面にファイナル
ギヤにより掻き上げられ流下する潤滑油を誘導収集する
第３ガイド板を配設し、この第３ガイド板と他方の傾斜
した内壁面間に第２収集部を形成し、誘導収集した第２
収集部の潤滑油をドライブシャフト内の油流路を経てピ
ニオンギヤ及びピニオンシャフト外周面に供給すべく第
４潤滑油流路を配設したことを特徴とする。In order to achieve this object, the present invention relates to a differential gear having a differential gear consisting of a pinion gear and a pinion shaft in a case body, and a plurality of differential gears are provided on an inner wall surface of one of the case bodies of the differential gear. The reinforcing ribs are formed radially around the drive shaft, and the first guide plate for guiding and collecting the lubricating oil scraped up by the final gear and flowing down is covered between the two reinforcing ribs in the upper portion, A first collecting portion is formed between one inner wall surface of the case body and the first guide plate, and an upstream end portion of the first lubricating oil passage is provided in communication with a lower portion of the first collecting portion. A second guide plate is provided in the middle of the oil flow path on the rotation center side of the final gear to allow the lubricating oil that has passed through the bearing of the drive shaft to flow into the differential case, and the lubricating oil from the first collecting portion is supplied to the pinion gear. A portion where a first lubricating oil passage is arranged to supply to the outer peripheral surface of the shaft and faces the first lubricating oil passage to supply the lubricating oil from the first collecting portion to the oil passage inside the pinion shaft. A second lubricating oil flow passage, and a third lubricating oil flow passage is provided to supply the lubricating oil from the first collecting portion to the pinion gear and the outer peripheral surface of the pinion shaft through the oil flow passage in the drive shaft. Then, a third guide plate for guiding and collecting the lubricating oil scraped up by the final gear and flowing down is disposed on the other inclined inner wall surface of the portion facing the one inner wall surface of the case body. The second collecting part is formed between the inclined inner wall surface and the other inclined inner wall surface, and the second collecting part is formed.
A fourth lubricating oil passage is provided so as to supply the lubricating oil of the collecting portion to the pinion gear and the outer peripheral surface of the pinion shaft through the oil passage in the drive shaft.
上述の如く構成したことにより、第１ガイド板によって
誘導収集された第１収集部内の潤滑油は、第２ガイド板
を有する第１潤滑油流路によりピニオンシャフト外周面
に供給されるとともに、第１潤滑油流路と対峙する部位
に配設される第２の潤滑油流路によりピニオンシャフト
内の油流路に供給され、第３潤滑油流路によりドライブ
シャフト内の油流路を経てピニオンギヤ及びピニオンシ
ャフト外周面に供給される。また、第３ガイド板によっ
て誘導収集された第２収集部内の潤滑油は、第４潤滑油
流路によりドライブシャフト内の油流路を経てピニオン
ギヤ及びピニオンシャフト外周面に供給され、ピニオン
ギヤ及びピニオンシャフトからなる差動歯車を強制潤滑
し、差動歯車部位の摩耗や焼付きを防止している。With the above-mentioned configuration, the lubricating oil in the first collecting portion, which is guided and collected by the first guide plate, is supplied to the outer peripheral surface of the pinion shaft by the first lubricating oil flow path having the second guide plate, and The first lubrication oil flow passage is provided to the oil passage in the pinion shaft by the second lubrication oil flow passage, and the third lubrication oil flow passage is passed through the oil passage in the drive shaft to the pinion gear. And the outer peripheral surface of the pinion shaft. Further, the lubricating oil in the second collecting portion, which is guided and collected by the third guide plate, is supplied to the pinion gear and the outer peripheral surface of the pinion shaft through the oil passage in the drive shaft by the fourth lubricating oil passage, and the pinion gear and the pinion shaft. The differential gear consisting of is forcibly lubricated to prevent wear and seizure of the differential gear.
以下図面に基づいてこの考案の実施例を詳細に説明す
る。An embodiment of the present invention will be described in detail below with reference to the drawings.
第１、２図はこの考案の実施例を示すものである。第
１、２図において、２は差動装置、４はトランスミッシ
ョンのケース本体、路はドライブシャフト、８はファイ
ナルギヤ、１０は差動歯車たるピニオンギヤ、１２はピ
ニオンシャフト、１４はデファレンシャルケースであ
る。前記差動装置２のケース本体４の一方の垂設される
内壁面４ａには、複数本の補強リブ１６が前記ドライブ
シャフト６を中心として放射状に形成されており、上方
部位の２本の補強リブ１６の下方間を第１ガイド板１８
によって覆設し、前記ケース本体４の内壁面４ａと第１
ガイド板１８間に第１収集部２０を形成する。また、第
１収集部２０下部には油溝２２を形成し、油溝２２に第
１潤滑油流路２４の上流側端部を連通させる。1 and 2 show an embodiment of the present invention. In FIGS. 1 and 2, reference numeral 2 is a differential device, 4 is a transmission case body, a road is a drive shaft, 8 is a final gear, 10 is a pinion gear as a differential gear, 12 is a pinion shaft, and 14 is a differential case. A plurality of reinforcing ribs 16 are radially formed around the drive shaft 6 on one vertically extending inner wall surface 4a of the case body 4 of the differential gear 2, and the two reinforcing ribs at the upper portion are reinforced. The first guide plate 18 is provided below the ribs 16.
The inner wall surface 4a of the case body 4 and the first wall
The first collecting unit 20 is formed between the guide plates 18. Further, an oil groove 22 is formed in the lower portion of the first collecting portion 20, and the oil groove 22 communicates with the upstream end of the first lubricating oil flow path 24.
この第１潤滑油流路２４は、第１収集部２０からの潤滑
油をピニオンシャフト１２外周面に供給すべく配設され
るものである。つまり、前記ファイナルギヤ８の回転中
心側には前記ドライブシャフト６の軸受２６を通過した
潤滑油をデファレンシャルケース１４内に流入させるべ
く第２ガイド板２８を設け、デファレンシャルケース１
４に油孔３０を穿設するとともに、前記ピニオンギヤ１
０外方のデファレンシャルケース１４にも油孔３２を穿
設する。そして、前記第１収集部２０からの潤滑油が前
記ドライブシャフト６の軸受け２６を通過し第２ガイド
板２８を経て油孔３０からデファレンシャルケース１４
内に流入し、油孔３２を経て前記ピニオンギヤ１０およ
びピニオンシャフト１２外周面に供給されるべく前記第
１潤滑油流路２４を構成する。The first lubricating oil flow path 24 is arranged to supply the lubricating oil from the first collecting portion 20 to the outer peripheral surface of the pinion shaft 12. That is, the second guide plate 28 is provided on the rotation center side of the final gear 8 so that the lubricating oil that has passed through the bearing 26 of the drive shaft 6 flows into the differential case 14.
4 is provided with an oil hole 30 and the pinion gear 1
An oil hole 32 is also formed in the differential case 14 outside 0. Then, the lubricating oil from the first collecting portion 20 passes through the bearing 26 of the drive shaft 6, passes through the second guide plate 28, and passes through the oil hole 30 to the differential case 14.
The first lubricating oil flow path 24 is configured so as to flow into the inside and be supplied to the outer peripheral surface of the pinion gear 10 and the pinion shaft 12 through the oil hole 32.
また、前記第１収集部２０からの潤滑油をピニオンシャ
フト１２内に供給すべく第２潤滑油流路３４が配設され
ている。この第２潤滑油流路３４は、前記第１潤滑油流
路２４と対峙する部位に配設される。つまり、前記デフ
ァレンシャルケース１４に穿設した油孔３０と対峙する
部位に油孔３６を穿設するとともに、前記ピニオンギヤ
１０外方のデファレンシャルケース１４の油孔３２と対
峙する部位にも油孔３８を穿設し、前記ピニオンシャフ
ト１２内に油流路３４ａを穿設するとともに、この油流
路３４ａから所望の被潤滑部位に潤滑油を供給すべくピ
ニオンシャフト１２に複数個の油孔４０を穿設する。In addition, a second lubricating oil passage 34 is arranged to supply the lubricating oil from the first collecting portion 20 into the pinion shaft 12. The second lubricating oil passage 34 is arranged at a portion facing the first lubricating oil passage 24. That is, the oil hole 36 is formed in a portion facing the oil hole 30 formed in the differential case 14, and the oil hole 38 is also formed in a portion facing the oil hole 32 of the differential case 14 outside the pinion gear 10. The oil passage 34a is formed in the pinion shaft 12, and a plurality of oil holes 40 are formed in the pinion shaft 12 so as to supply the lubricating oil from the oil passage 34a to a desired lubricated portion. Set up.
そして、前記第１収集部２０からの潤滑油が前記ドライ
ブシャフト６の軸受２６を通過し第２ガイド板２８を経
て油孔３６からデファレンシャルケース１４内に流入
し、油孔３８を経て前記ピニオンシャフト１２内の油流
路３４ａに至り複数個の油孔４０から所望の被潤滑部位
に潤滑油を供給させるべく構成される。Then, the lubricating oil from the first collecting portion 20 passes through the bearing 26 of the drive shaft 6, passes through the second guide plate 28, flows into the differential case 14 through the oil hole 36, passes through the oil hole 38, and the pinion shaft. It is configured to reach the oil passage 34a in 12 and to supply the lubricating oil from a plurality of oil holes 40 to a desired lubrication target portion.
更に、前記第１収集部２０からの潤滑油をドライブシャ
フト６内に供給すべく第３潤滑油流路４２が配設されて
いる。この第３潤滑流路４２は前記ドライブシャフト６
の軸受２６直上流で分岐すべく設けられるとともに、ド
ライブシャフト６内に油流路４２ａが穿設され、前記第
１収集部２０からの潤滑油が前記ドライブシャフト６内
の油流路４２ａを経て前記ピニオンギヤ１０およびピニ
オンシャフト１２外周面に供給されるべく構成されてい
る。Further, a third lubricating oil flow path 42 is arranged to supply the lubricating oil from the first collecting portion 20 into the drive shaft 6. The third lubrication flow passage 42 is connected to the drive shaft 6
Of the drive shaft 6, an oil passage 42a is bored in the drive shaft 6, and the lubricating oil from the first collecting portion 20 passes through the oil passage 42a in the drive shaft 6. It is configured to be supplied to the outer peripheral surfaces of the pinion gear 10 and the pinion shaft 12.
更にまた、前記ケース本体４の内壁面４ａと対峙する部
位の他方の傾斜した内壁面４ｂには、この内壁面４ｂを
流下あるいは空気中を流下する潤滑油を誘導収集すべく
第３ガイド板４４が配設され、この第３ガイド板４４と
内壁面４ｂ間に第２収集部４６が形成される。そして、
前記第３潤滑油流路４２と同様に、誘導収集した潤滑油
が前記ドライブシャフト６内の油流路４８ａを経て前記
ピニオンギヤ１０およびピニオンシャフト１２外周面に
供給されるべく第４潤滑油流路４８が構成されている。Furthermore, on the other inclined inner wall surface 4b of the case body 4 facing the inner wall surface 4a, the third guide plate 44 is provided to guide and collect the lubricating oil flowing down the inner wall surface 4b or flowing down in the air. Is disposed, and the second collecting portion 46 is formed between the third guide plate 44 and the inner wall surface 4b. And
Similarly to the third lubricating oil flow passage 42, the fourth lubricating oil flow passage is provided so that the lubricating oil that is inductively collected is supplied to the outer peripheral surface of the pinion gear 10 and the pinion shaft 12 through the oil flow passage 48a in the drive shaft 6. 48 are configured.
つまり、前記第１、第２収集部２０、４６で誘導収集さ
れた潤滑油を前記第１〜第４潤滑油流路２４、３４、４
２、４８によって前記ケース本体４内のピニオンギヤ１
０およびピニオンシャフト１２からなる差動歯車部位に
供給し強制潤滑すべく構成されるものである。That is, the lubricating oil guided and collected by the first and second collecting units 20 and 46 is transferred to the first to fourth lubricating oil passages 24, 34, and 4.
2, 48 to the pinion gear 1 in the case body 4
0 and the pinion shaft 12 are configured to be supplied to the differential gear portion for forced lubrication.
次に作用について説明する。Next, the operation will be described.
前記差動装置２が駆動した際には、前記ファイナルギヤ
８が回転され、このファイナルギヤ８により潤滑油が掻
き上げられ、ケース本体４の内壁面４ａあるいは空気中
を流下し、この流下する潤滑油を前記第１、第２収集部
２０、４６で誘導収集する。When the differential device 2 is driven, the final gear 8 is rotated, and the lubricating oil is scraped up by the final gear 8 to flow down through the inner wall surface 4a of the case body 4 or in the air, and the flowing down lubrication. The oil is guided and collected by the first and second collecting units 20 and 46.
そして、第１収集部２０で誘導収集された潤滑油は、第
１潤滑油流路２４によってドライブシャフト６の軸受２
６を通過し、第２ガイド板２８を経て油孔３０からデフ
ァレンシャルケース１４内に流入し、油孔３２を経て前
記ピニオンギヤ１０およびピニオンシャフト１２外周面
に供給される。また、第２潤滑油流路３４によってドラ
イブシャフト６の軸受２６を通過し、第２ガイド板２８
を経て油孔３６からデファレンシャルケース１４内に流
入し、油孔３８を経て前記ピニオンシャフト１２内の油
流路３４ａに至り、複数個の油孔４０から所望の被潤滑
部位に潤滑油を供給させる。更に、第３潤滑油流路４２
によって前記第１収集部２０からの潤滑油が前記ドライ
ブシャフト６の軸受２６直上流で分岐し、ドライブシャ
フト６内の油流路４２ａを経て前記ピニオンギヤ１０お
よびピニオンシャフト１２外周面に供給される。The lubricating oil guided and collected by the first collecting unit 20 is transferred to the bearing 2 of the drive shaft 6 by the first lubricating oil passage 24.
6, passes through the second guide plate 28, flows from the oil hole 30 into the differential case 14, and is supplied to the outer peripheral surface of the pinion gear 10 and the pinion shaft 12 through the oil hole 32. In addition, the second lubricating oil flow path 34 passes through the bearing 26 of the drive shaft 6, and the second guide plate 28
Through the oil hole 36 into the differential case 14, through the oil hole 38 to the oil passage 34a in the pinion shaft 12, and the lubricating oil is supplied from the plurality of oil holes 40 to the desired lubrication site. . Further, the third lubricating oil passage 42
Thus, the lubricating oil from the first collecting portion 20 is branched immediately upstream of the bearing 26 of the drive shaft 6, and is supplied to the outer peripheral surfaces of the pinion gear 10 and the pinion shaft 12 through the oil flow passage 42a in the drive shaft 6.
前記第４潤滑油流路４８によって第２収集部４６で誘導
収集された潤滑油を、前記ドライブシャフト６内の油流
路４８ａを経て、前記ピニオンギヤ１０およびピニオン
シャフト１２外周面に供給させる。The lubricating oil guided and collected by the second collecting portion 46 by the fourth lubricating oil passage 48 is supplied to the outer peripheral surfaces of the pinion gear 10 and the pinion shaft 12 via the oil passage 48a in the drive shaft 6.
これにより、前記第１、第２収集部で誘導収集された潤
滑油を前記第１〜第４油流路によって前記ケース本体内
のピニオンギヤおよびピニオンシャフトからなる差動歯
車部位に供給して強制潤滑することができ、デファレン
シャルケースの取付け位置に拘わらず潤滑効率を向上で
き、差動歯車部位の摩耗や焼付きを確実に防止し得る。As a result, the lubricating oil guided and collected by the first and second collecting parts is supplied to the differential gear portion including the pinion gear and the pinion shaft in the case main body through the first to fourth oil flow paths to forcibly lubricate. Therefore, the lubrication efficiency can be improved regardless of the mounting position of the differential case, and wear and seizure of the differential gear portion can be reliably prevented.
また、前記第１〜第４潤滑油流路によって種々方向から
前記ケース本体内の差動歯車部位に潤滑油を供給するこ
とにより、たとえ遠心力等の負荷が加わって一の潤滑油
流路の潤滑油の供給機能が損なわれたとしても、他の潤
滑油流路によってケース本体内の差動歯車部位に潤滑油
を確実に供給できるものである。Further, by supplying the lubricating oil to the differential gear portion in the case body from various directions by the first to fourth lubricating oil passages, even if a load such as a centrifugal force is applied, Even if the lubricating oil supply function is impaired, the lubricating oil can be reliably supplied to the differential gear portion in the case body by another lubricating oil passage.
更に、前記第１〜第４油流路を複数のガイド板と油孔に
よって配設できることにより、構成が複雑化する惧れが
なく、製作が容易であるとともに、装置が大型化せず、
実用上有利である。Further, since the first to fourth oil passages can be arranged by the plurality of guide plates and the oil holes, there is no fear that the configuration will be complicated, the manufacturing will be easy, and the device will not be upsized.
It is practically advantageous.
更にまた、前記第１、第２収集部を形成することによ
り、潤滑に必要な十分な油量を常時確保することがで
き、差動歯車部位の摩耗や焼付きの防止に寄与し得る。Furthermore, by forming the first and second collecting portions, it is possible to always secure a sufficient amount of oil necessary for lubrication, which can contribute to the prevention of wear and seizure of the differential gear portion.
また、前記ファイナルギヤの回転中心側に第２ガイド板
を設けたことにより、ファイナルギヤの回転時に遠心力
によって軸受からの潤滑油を確実に受けることができ、
ピニオンギヤ及びピニオンシャフトからなる差動歯車部
位を強制的に潤滑し得るものである。Further, by providing the second guide plate on the rotation center side of the final gear, it is possible to reliably receive the lubricating oil from the bearing by the centrifugal force when the final gear rotates.
The differential gear portion including the pinion gear and the pinion shaft can be forcibly lubricated.
更に、第１、第２ガイド板によって、第１〜第３潤滑油
流路を機能させるとともに、第３ガイド板によって第４
潤滑油流路を機能させることができることにより、第１
〜第３潤滑油流路や第４潤滑油流路を流下する潤滑油が
夫々の軸受を潤滑した後に、ピニオンギヤ、ピニオンシ
ャフトに順次供給されることとなり、無駄のない、つま
り効率の良い潤滑を行うことができる。Further, the first and second guide plates function as the first to third lubricating oil flow paths, and the third guide plate allows the fourth guide oil to function as the fourth guide oil.
By allowing the lubricating oil flow path to function, the first
~ Lubricating oil flowing down through the third lubricating oil passage and the fourth lubricating oil passage will be sequentially supplied to the pinion gear and the pinion shaft after lubricating the respective bearings, thus achieving efficient and efficient lubrication. It can be carried out.
なお、この考案は上述実施例に限定されるものではな
く、種々の応用改変が可能である。The invention is not limited to the above-described embodiment, but various application modifications can be made.
例えば、この考案は実施例においては、前記ケース本体
の内壁面に第１、第３ガイド板を覆設し、ケース本体の
内壁面と第１、第３ガイド板間に第１、第２収集部を夫
々形成する構成としたが、ケース本体の内壁面に一体的
にガイド板を設し、収集部を形成する構成とすることも
可能である。For example, in the embodiment of the present invention, the first and third guide plates are provided on the inner wall surface of the case body, and the first and second collecting plates are provided between the inner wall surface of the case body and the first and third guide plates. Although the respective parts are formed, it is also possible to form the collecting part by integrally providing the guide plate on the inner wall surface of the case body.
以上詳細に説明した如くこの考案によれば、ケース本体
の一方の内壁面に複数本の補強リブをドライブシャフト
を中心として放射状に形成し、上方部位の２本の補強リ
ブの下方間に潤滑油を誘導収集する第１ガイド板を覆設
し、ケース本体の一方の内壁面と第１ガイド板間に第１
収集部を形成し、第１収集部下部に第１潤滑油流路の上
流側端部を連通して設け、第１潤滑油流路途中にファイ
ナルギヤの回転中心側にドライブシャフトの軸受を通過
した潤滑油をデファレンシャルケース内に流入させる第
２ガイド板を設け、第１収集部からの潤滑油をピニオン
シャフト外周面に供給すべく第１潤滑油流路を配設し、
第１潤滑油流路と対峙する部位に第２潤滑油流路を配設
し、第１収集部からの潤滑油をドライブシャフト内の油
流路を経てピニオンギヤ及びピニオンシャフト外周面に
供給すべく第３潤滑油流路を配設し、ケース本体の一方
の内壁面と対峙する部位の他方の内壁面に潤滑油を誘導
収集する第３ガイド板を配設し、この第３ガイド板と他
方の傾斜した内壁面間に第２収集部を形成し、誘導収集
した第２収集部の潤滑油をドライブシャフト内の油流路
を経てピニオンギヤ及びピニオンシャフト外周面に供給
すべく第４潤滑油流路を配設したので、差動歯車部位に
潤滑油を強制潤滑させることができ、差動歯車の取付け
位置に拘わらず潤滑効率を向上でき、差動歯車部位の摩
耗や焼付きを確実に防止し得る。また、潤滑油流路によ
って種々方向からケース本体内の差動歯車部位に潤滑油
を供給することができ、たとえ一の潤滑油流路の潤滑油
の供給機能が損なわれたとしても、他の潤滑油流路によ
ってケース本体内の差動歯車部位に潤滑油を確実に供給
し得て、実用上有利である。更に、前記第１、第２収集
部を形成することにより、潤滑に必要な十分な油量を常
時確保でき、差動歯車部位の摩耗や焼付きの防止に寄与
し得る。更にまた、前記ファイナルギヤの回転中心側に
第２ガイド板を設けたことにより、ファイナルギヤの回
転時に遠心力によって第１潤滑油流路側からの潤滑油を
確実に受けることができ、ピニオンギヤ及びピニオンシ
ャフトからなる差動歯車部位を強制的に潤滑し得るもの
である。また、第１、第２ガイド板によって第１〜第３
潤滑油流路を機能させるとともに、第３ガイド板によっ
て第４潤滑油流路を機能させることができることによ
り、第１〜第３潤滑油流路や第４潤滑油流路を流下する
潤滑油が軸受部位を潤滑した後に、ピニオンギヤ、ピニ
オンシャフトに順次供給され、効率の良い潤滑を果たし
得る。As described in detail above, according to the present invention, a plurality of reinforcing ribs are radially formed on one inner wall surface of the case body with the drive shaft as a center, and the lubricating oil is provided between the two reinforcing ribs in the upper portion. The first guide plate that guides and collects the water is covered, and the first guide plate is provided between the one inner wall surface of the case body and the first guide plate.
A collecting portion is formed, and the upstream end of the first lubricating oil passage is provided in communication with the lower portion of the first collecting portion, and the bearing of the drive shaft is passed to the rotation center side of the final gear in the middle of the first lubricating oil passage. A second guide plate is provided for allowing the lubricating oil to flow into the differential case, and a first lubricating oil flow passage is arranged to supply the lubricating oil from the first collecting portion to the outer peripheral surface of the pinion shaft,
A second lubricating oil passage is disposed in a portion facing the first lubricating oil passage, and the lubricating oil from the first collecting portion is supplied to the pinion gear and the outer peripheral surface of the pinion shaft through the oil passage in the drive shaft. A third lubricating oil passage is provided, and a third guide plate for guiding and collecting lubricating oil is provided on the other inner wall surface of the case body facing one inner wall surface. A second collecting part is formed between the inclined inner wall surfaces of the second collecting part, and the lubricating oil of the second collecting part, which is guided and collected, is supplied to the pinion gear and the outer peripheral surface of the pinion shaft through the oil passage in the drive shaft. Since the passage is arranged, the lubricating oil can be forcibly lubricated to the differential gear part, the lubrication efficiency can be improved regardless of the mounting position of the differential gear, and the wear and seizure of the differential gear part can be reliably prevented. You can Further, the lubricating oil flow passage can supply the lubricating oil to the differential gear portion in the case body from various directions, and even if the lubricating oil supply function of one lubricating oil flow passage is impaired, The lubricating oil flow passage can reliably supply the lubricating oil to the differential gear portion in the case body, which is practically advantageous. Furthermore, by forming the first and second collecting portions, a sufficient amount of oil necessary for lubrication can be always secured, which can contribute to the prevention of wear and seizure of the differential gear portion. Furthermore, by providing the second guide plate on the rotation center side of the final gear, it is possible to reliably receive the lubricating oil from the first lubricating oil flow path side by the centrifugal force when the final gear rotates, and thus the pinion gear and the pinion. The differential gear portion including the shaft can be forcibly lubricated. In addition, the first to the third guide plates are provided by the first and second guide plates.
By allowing the third guide plate to function the fourth lubricating oil flow path as well as functioning the lubricating oil flow path, the lubricating oil flowing down the first to third lubricating oil flow paths and the fourth lubricating oil flow path After lubricating the bearing portion, it is sequentially supplied to the pinion gear and the pinion shaft, and efficient lubrication can be achieved.
第１、２図はこの考案の実施例を示し、第１図は差動装
置の概略断面図、第２図はケース本体内への第１、第２
ガイド板の取付け状態を示す要部切欠き図である。 図において、２は差動装置、４はケース本体、４ａ、４
ｂは内壁面、６はドライブシャフト、８はファイナルギ
ヤ、１０はピニオンギヤ、１２はピニオンシャフト、１
４はデファレンシャルケース、１６は補強リブ、１８は
第１ガイド板、２０は第１収集部、２２は油溝、２４は
第１潤滑油流路、２６は軸受、２８は第２ガイド板、３
０、３２は油孔、３４は第２潤滑油流路、３６、３８、
４０は油孔、４２は第３潤滑油流路、４４は第３ガイド
板、４６は第２収集部、４８は第４潤滑油流路である。FIGS. 1 and 2 show an embodiment of the present invention, FIG. 1 is a schematic sectional view of a differential device, and FIG. 2 is a first and a second inside a case body.
FIG. 6 is a cutaway view of a main part showing a mounted state of a guide plate. In the figure, 2 is a differential device, 4 is a case body, 4a, 4
b is an inner wall surface, 6 is a drive shaft, 8 is a final gear, 10 is a pinion gear, 12 is a pinion shaft, 1
Reference numeral 4 is a differential case, 16 is a reinforcing rib, 18 is a first guide plate, 20 is a first collecting portion, 22 is an oil groove, 24 is a first lubricating oil passage, 26 is a bearing, 28 is a second guide plate, 3
0 and 32 are oil holes, 34 is a second lubricating oil passage, 36 and 38,
40 is an oil hole, 42 is a third lubricating oil passage, 44 is a third guide plate, 46 is a second collecting portion, and 48 is a fourth lubricating oil passage.
Claims (1)
シャフトからなる差動歯車を有する差動装置において、
この差動装置のケース本体の一方に垂設される内壁面に
複数本の補強リブをドライブシャフトを中心として放射
状に形成し、上方部位の２本の補強リブの下方間にファ
イナルギヤにより掻き上げられ流下する潤滑油を誘導収
集する第１ガイド板を覆設し、前記ケース本体の一方の
内壁面と第１ガイド板間に第１収集部を形成し、この第
１収集部下部に第１潤滑油流路の上流側端部を連通して
設け、この第１潤滑油流路途中にファイナルギヤの回転
中心側にドライブシャフトの軸受を通過した潤滑油をデ
ファレンシャルケース内に流入させる第２ガイド板を設
け、前記第１収集部からの潤滑油をピニオンシャフト外
周面に供給すべく第１潤滑油流路を配設し、前記第１収
集部からの潤滑油をピニオンシャフト内の油流路に供給
すべく前記第１潤滑油流路と対峙する部位に第２潤滑油
流路を配設し、前記第１収集部からの潤滑油をドライブ
シャフト内の油流路を経てピニオンギヤ及びピニオンシ
ャフト外周面に供給すべく第３潤滑油流路を配設し、前
記ケース本体の一方の内壁面と対峙する部位の他方の傾
斜した内壁面にファイナルギヤにより掻き上げられ流下
する潤滑油を誘導収集する第３ガイド板を配設し、この
第３ガイド板と他方の傾斜した内壁面間に第２収集部を
形成し、誘導収集した第２収集部の潤滑油をドライブシ
ャフト内の油流路を経てピニオンギヤ及びピニオンシャ
フト外周面に供給すべく第４潤滑油流路を配設したこと
を特徴とする作動歯車の潤滑装置。1. A differential device having a differential gear consisting of a pinion gear and a pinion shaft in a case body,
A plurality of reinforcing ribs are radially formed on the inner wall surface of one of the case bodies of this differential device, centered around the drive shaft, and scraped up by a final gear between the two reinforcing ribs in the upper part. A first guide plate that guides and collects the lubricating oil that flows down is covered, a first collecting portion is formed between one inner wall surface of the case body and the first guide plate, and a first collecting portion is formed below the first collecting portion. A second guide in which the upstream end portion of the lubricating oil flow passage is provided in communication with each other, and the lubricating oil that has passed through the bearing of the drive shaft to the rotation center side of the final gear flows into the differential case midway through the first lubricating oil flow passage. A plate is provided, and a first lubricating oil passage is arranged to supply the lubricating oil from the first collecting portion to the outer peripheral surface of the pinion shaft, and the lubricating oil from the first collecting portion is arranged in the oil passage in the pinion shaft. To supply to the first A second lubricating oil flow passage is disposed in a portion facing the oil flow passage, and a third lubricating oil is supplied from the first collecting portion so as to be supplied to the pinion gear and the outer peripheral surface of the pinion shaft through the oil flow passage in the drive shaft. A lubricating oil flow path is provided, and a third guide plate for guiding and collecting the lubricating oil that is scraped up by the final gear and flows down is provided on the other inclined inner wall surface of the portion facing the one inner wall surface of the case body. Then, the second collecting portion is formed between the third guide plate and the other inclined inner wall surface, and the lubricating oil of the second collecting portion which is guided and collected is passed through the oil passage in the drive shaft and the outer surface of the pinion gear and the pinion shaft. A lubricating device for operating gears, characterized in that a fourth lubricating oil flow path is provided for supplying to the operating gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986082717U JPH062077Y2 (en) | 1986-05-31 | 1986-05-31 | Differential gear lubricator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986082717U JPH062077Y2 (en) | 1986-05-31 | 1986-05-31 | Differential gear lubricator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62194242U JPS62194242U (en) | 1987-12-10 |
| JPH062077Y2 true JPH062077Y2 (en) | 1994-01-19 |
Family
ID=30935622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986082717U Expired - Lifetime JPH062077Y2 (en) | 1986-05-31 | 1986-05-31 | Differential gear lubricator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062077Y2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH083740Y2 (en) * | 1989-06-20 | 1996-01-31 | 三菱自動車工業株式会社 | Car interaxle diff |
| JP4484393B2 (en) * | 2001-04-27 | 2010-06-16 | Ｔｃｍ株式会社 | Vehicle equipped with a power transmission device |
| JP4409929B2 (en) | 2003-12-19 | 2010-02-03 | 本田技研工業株式会社 | Lubrication structure of differential equipment |
| JP4672312B2 (en) * | 2004-08-31 | 2011-04-20 | ジヤトコ株式会社 | Transmission unit lubrication structure |
| JP4574511B2 (en) * | 2005-10-19 | 2010-11-04 | ダイハツ工業株式会社 | Vehicle differential device |
| JP4814772B2 (en) * | 2006-12-01 | 2011-11-16 | 本田技研工業株式会社 | Lubrication structure of differential equipment |
| JP5706200B2 (en) * | 2011-03-11 | 2015-04-22 | 株式会社ショーワ | Deceleration device and differential device |
| JP5961845B2 (en) * | 2012-03-27 | 2016-08-02 | ダイハツ工業株式会社 | Cylinder block cooling structure of hydrostatic continuously variable transmission |
| JP6544820B2 (en) * | 2015-02-27 | 2019-07-17 | ダイハツ工業株式会社 | Lubrication structure in differential gear for vehicles |
| JP7195705B2 (en) * | 2019-01-30 | 2022-12-26 | ダイハツ工業株式会社 | transaxle |
| JP2020122531A (en) * | 2019-01-31 | 2020-08-13 | 本田技研工業株式会社 | Lubrication structure of differential device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5592523U (en) * | 1978-12-21 | 1980-06-26 |
-
1986
- 1986-05-31 JP JP1986082717U patent/JPH062077Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62194242U (en) | 1987-12-10 |
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