JPH0227245Y2 - - Google Patents
Info
- Publication number
- JPH0227245Y2 JPH0227245Y2 JP1984031112U JP3111284U JPH0227245Y2 JP H0227245 Y2 JPH0227245 Y2 JP H0227245Y2 JP 1984031112 U JP1984031112 U JP 1984031112U JP 3111284 U JP3111284 U JP 3111284U JP H0227245 Y2 JPH0227245 Y2 JP H0227245Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- differential
- differential gear
- lubricating oil
- gear case
- 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
- 239000010687 lubricating oil Substances 0.000 claims description 24
- 239000003921 oil Substances 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Landscapes
- General Details Of Gearings (AREA)
- Motor Power Transmission Devices (AREA)
Description
【考案の詳細な説明】
本考案は、車輌一般に使用される差動装置、詳
しくは、デフケース内の潤滑油をデフアレンシヤ
ルギアーケースの内部に供給する技術に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a differential gear generally used in vehicles, and more particularly to a technique for supplying lubricating oil in a differential case to the inside of a differential gear case.
デフケース内油がデフアレンシヤルギアーケー
スの内部に入り込むようにするのに、従来、潤滑
油流通用孔がデフアレンシヤルギアーケースの周
方向の壁部にのみ設けられていた。 In order to allow the oil in the differential case to enter the inside of the differential gear case, lubricating oil circulation holes have conventionally been provided only in the circumferential wall of the differential gear case.
この従来の給油構成の場合、デフアレンシヤル
ギアーケースの回転時、殊に高速回転時に、デフ
アレンシヤルギアーケースの内部油がケース回転
に伴い流通用孔からケース外に流出するために、
他方、潤滑油流通用孔がデフケース内油中を高速
通過することと、周方向壁部貫通孔にあつてはギ
アーケース回転のために流出しようとするギアー
ケース内油のために外部油が流入しにくい方向に
向つていることから、潤滑油流通用孔がデフケー
ス内油中に入り込んでもデフアレンシヤルギアー
ケースの外部に在る油が入り込みにくいために、
サイドギアーや差動用ピニオンギアーに対する給
油不足やデフアレンシヤルギアーケースの内部に
対する油流通不足が生じ易くなつていた。 In the case of this conventional oil supply configuration, when the differential gear case rotates, especially when rotating at high speed, the internal oil of the differential gear case flows out of the case from the circulation hole as the case rotates.
On the other hand, the lubricating oil circulation hole allows the oil inside the differential case to pass through at high speed, and in the case of the through hole in the circumferential wall, external oil flows in due to the oil inside the gear case that is about to flow out due to the rotation of the gear case. Even if the lubricating oil distribution hole gets into the oil inside the differential case, it is difficult for the oil outside the differential gear case to get in.
Insufficient oil supply to the side gears and differential pinion gears, and insufficient oil flow to the inside of the differential gear case have become more likely to occur.
本考案の目的は、デフケース内に潤滑油を充満
させなくとも、デフアレンシヤルギアーケースの
内部に十分な量の油が供給されると共に流通する
ようにすることにある。 An object of the present invention is to allow a sufficient amount of oil to be supplied and circulated inside a differential gear case without filling the differential case with lubricating oil.
本考案による差動装置は、デフアレンシヤルギ
アーケースの周方向壁部に、潤滑油流通用の貫通
孔を設け、前記デフアレンシヤルギアーケースの
横側壁部に、このデフアレンシヤルギアーケース
の回転軸芯方向に沿う潤滑油流通用の貫通孔を設
けてあることを特徴とし、その作用及び効果は次
のとおりである。 In the differential gear according to the present invention, a through hole for lubricating oil is provided in the circumferential wall of the differential gear case, and a through hole for circulating lubricating oil is provided in the lateral wall of the differential gear case. It is characterized by being provided with a through-hole for lubricating oil distribution along the axial direction, and its functions and effects are as follows.
前述のように構成すると、デフアレンシヤルギ
アーケースの回転による遠心力でデフアレンシヤ
ルギアーケース内の潤滑油が、周方向壁部の貫通
孔より外部に出て行く。逆に、デフアレンシヤル
ギアーケースの横側壁部に設けられた貫通孔に
は、前記遠心力が働かない。従つて、デフケース
の潤滑油は遠心力の働かない横側壁部の貫通孔か
らデフアレンシヤルギアーケース内に入り込もう
とすると共に、デフアレンシヤルギアーケース内
の潤滑油が遠心力で周方向壁部の貫通孔から流出
すると、この流出による吸引作用でデフケースの
潤滑油が横側壁部の前記貫通孔からデフアレンシ
ヤルギアーケース内にさらに入り込んで行く。そ
して、この潤滑油は遠心力によつて周方向壁部の
貫通孔より再び流出して行くのである。 With the above configuration, the lubricating oil in the differential gear case flows out from the through hole in the circumferential wall due to the centrifugal force caused by the rotation of the differential gear case. Conversely, the centrifugal force does not act on the through hole provided in the side wall of the differential gear case. Therefore, the lubricating oil in the differential case tries to enter the differential gear case through the through-hole in the side wall where centrifugal force does not act, and the lubricating oil in the differential gear case also flows into the circumferential wall due to centrifugal force. When the lubricating oil flows out from the through hole, the lubricating oil in the differential case further enters into the differential gear case through the through hole in the side wall part due to the suction effect caused by this outflow. This lubricating oil then flows out again from the through hole in the circumferential wall due to centrifugal force.
以上のように、デフアレンシヤルギアーケース
の回転作用を有効に利用してデフアレンシヤルギ
アーケース内に十分な潤滑油が供給されるよう
に、又、滞留なく循環させることができるように
なつて、差動装置が長期に亘つてスムーズに作動
するようになつた。 As described above, by effectively utilizing the rotational action of the differential gear case, it has become possible to supply sufficient lubricating oil into the differential gear case and to circulate it without stagnation. , the differential now operates smoothly over a long period of time.
以下に、本考案の実施例を図面に基いて説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
第１図に示すように、左右一対の操向型駆動前
車輪１，１及び非操向型駆動後車輪２，２を有し
た走行機体の後部に、ロータリー耕耘装置等の各
種作業装置を昇降操作自在に連結するリフトアー
ム３、及び、連結作業装置に伝動する動力取出し
軸４を設けて、農用トラクターを構成してある。 As shown in Fig. 1, various working devices such as a rotary tiller are mounted at the rear of a traveling machine that has a pair of left and right steering type drive front wheels 1, 1 and non-steering type drive rear wheels 2, 2. An agricultural tractor is constructed by providing a lift arm 3 that is operably connected and a power take-off shaft 4 that transmits power to a connected work device.
前輪１を取付けるに、第２図に示すように、左
右車輪１，１を車軸５を介して軸支する一対の鋳
造製伝動ケース部分６，６と、これら鋳造ケース
部分６，６の一方から他方にわたる一連の構造用
鋼管で作製した差動伝動ケース部分７とから成る
伝動ケースを、差動伝動ケース部分７の左右中間
部に溶接された筒軸８と入力軸ケース９とを介し
て機体の前後一対の筒ボス１０，１１に機体前後
方向の軸芯P1周りで上下揺動するように枢支連
結してある。 To install the front wheels 1, as shown in FIG. A transmission case consisting of a differential transmission case part 7 made of a series of structural steel pipes extending over the other side is connected to the fuselage via a cylindrical shaft 8 welded to the left and right middle parts of the differential transmission case part 7 and an input shaft case 9. It is pivotally connected to a pair of front and rear cylindrical bosses 10 and 11 so as to swing up and down about an axis P1 in the longitudinal direction of the fuselage.
左右前輪１，１の駆動を可能にするに、前記差
動伝動ケース部分７に、差動装置１２、及び、こ
の差動装置１２の左右一対のサイドギアー１３，
１３に各別に連動させた一対の横向き連動軸１
４，１４を内装し、そして、この連動軸１４にベ
ベルギアー機構１５を介して減速連動させた縦向
き連動軸１６、この縦向き連動軸１６の下端部に
一体形成した小径伝動ギアー１７と、このギアー
１７に咬合させた状態で車軸５にスプライン外嵌
させた大径受動ギアー１８とから成るベベル減速
連動ギアー機構の夫々を鋳造伝動ケース部分６に
内装してあり、トランスミツシヨン１９の回転出
力が入力軸２０を介して差動装置１２に入力さ
れ、減速されると共に左右に分岐され、この分岐
出力が車軸５に減速伝達されるように構成してあ
る。 In order to drive the left and right front wheels 1, 1, the differential transmission case portion 7 includes a differential device 12, and a pair of left and right side gears 13 of the differential device 12.
A pair of horizontal interlocking shafts 1 each interlocked with 13.
4 and 14 internally, and a vertical interlocking shaft 16 that is decelerated and interlocked with this interlocking shaft 14 via a bevel gear mechanism 15, a small diameter transmission gear 17 integrally formed at the lower end of this vertical interlocking shaft 16, and this A bevel reduction interlocking gear mechanism consisting of a large-diameter passive gear 18 externally fitted with a spline on the axle 5 while being engaged with the gear 17 is installed inside the cast transmission case part 6, and the rotational output of the transmission 19 is is input to the differential gear 12 via the input shaft 20, decelerated and branched left and right, and this branched output is decelerated and transmitted to the axle 5.
前輪１の操向操作を可能にするに、鋳造伝動ケ
ース部分６を、前記縦向き連動軸１６を内装する
と共に差動伝動ケース部分７に固定したケース部
６ａと、車軸５を備えさせると共に前記固定側ケ
ース部６ａに縦向き連動軸１６と同芯の縦軸芯
P2周りで揺動自在に連結した揺動側ケース部６
ｂとから構成して、この揺動側ケース部６ｂをナ
ツクルアーム２１により揺動操作するように構成
してある。 In order to enable steering operation of the front wheels 1, a cast transmission case part 6 is provided with a case part 6a that houses the longitudinal interlocking shaft 16 and is fixed to the differential transmission case part 7, and an axle 5, and A vertical shaft core coaxial with the vertical interlocking shaft 16 is attached to the fixed side case part 6a.
Swing side case part 6 connected so as to be swingable around P 2
b, and this swing-side case portion 6b is configured to be swing-operated by a knuckle arm 21.
前記差動装置１２を構成するに、第３図ないし
第５図に示すように、ドライビングギアー２２に
４本のボルト２３…によつて一体回転するように
連結したデフアレンシヤルギアーケース２４の周
方向の壁部２４ａに、周方向に分散配置した２個
の潤滑油流通用の第１貫通孔２５，２５を設け、
デフアレンシヤルギアーケース２４の横側壁部２
４ｂに、デフアレンシヤルギアーケース２４の回
転軸芯に沿う状態で周方向に分散配置した４個の
潤滑油流通用の第２貫通孔２６…を設け、ドライ
ビングギアー２２に、これの回転軸芯とほぼ平行
な潤滑油流通用の第３貫通孔２７を入力軸２０の
側の端がドライビングギアー２２の本体の基部で
あつて、ボス部２２ａにこれの横外側に突出する
状態で連なつている箇所に位置する状態で設けて
いる。これにより、デフアレンシヤルギアーケー
ス２４の回転に伴う遠心力によつて、デフアレン
シヤルギアーケース２４内の潤滑油が第１貫通孔
２５から流出して行く。そして、この流出による
吸引作用、回転による掻き込み作用及び自然流動
により、差動伝動ケース７内の潤滑油が第２及び
第３貫通孔２６，２７からデフアレンシヤルギア
ーケース２４内に流入し、再び第１貫通孔２５か
ら流出して循環するように構成してあり、サイド
ギアー１３，１３、差動用ピニオンギアー２８及
びピニオンギアー支軸２９に対する潤滑油供給や
加熱防止が行われるようにしてある。 As shown in FIGS. 3 to 5, the differential device 12 is constructed by a differential gear case 24 connected to the driving gear 22 by four bolts 23 so as to rotate integrally with the driving gear 22. Two first through holes 25, 25 for lubricating oil circulation distributed in the circumferential direction are provided in the wall portion 24a in the direction,
Lateral side wall portion 2 of differential gear case 24
4b is provided with four second through holes 26 for lubricating oil distribution distributed in the circumferential direction along the rotation axis of the differential gear case 24, A third through hole 27 for lubricating oil distribution, which is substantially parallel to the input shaft 20 side, is connected to the boss portion 22a at the base of the main body of the driving gear 22 so as to protrude laterally outward from the boss portion 22a. It is set up so that it is located where it is. As a result, the lubricating oil in the differential gear case 24 flows out from the first through hole 25 due to the centrifugal force accompanying the rotation of the differential gear case 24. Then, due to the suction action caused by this outflow, the scraping action caused by the rotation, and the natural flow, the lubricating oil in the differential transmission case 7 flows into the differential gear case 24 from the second and third through holes 26 and 27. The lubricating oil is configured to flow out again from the first through hole 25 and circulate, thereby supplying lubricating oil to the side gears 13, 13, the differential pinion gear 28, and the pinion gear support shaft 29, and preventing heating thereof. be.
本考案は、農用トラクターに限らず、運搬車、
乗用車等の車輌一般の差動装置にも適用できる。 This invention is applicable not only to agricultural tractors but also to transport vehicles,
It can also be applied to differential devices for general vehicles such as passenger cars.
図面は本考案に係る差動装置の実施例を示し、
第１図は農用トラクターの側面図、第２図は前輪
取付部の一部展開状態の背面図、第３図は差動装
置の断面図、第４図は第３図の−断面矢視
図、第５図は第３図の−断面矢視図である。
２４……デフアレンシヤルギアーケース、２４
ａ……周方向壁部、２４ｂ……横側壁部、２５，
２６……貫通孔。
The drawings show an embodiment of the differential device according to the present invention,
Fig. 1 is a side view of the agricultural tractor, Fig. 2 is a rear view of the front wheel mounting part in a partially expanded state, Fig. 3 is a sectional view of the differential gear, and Fig. 4 is a cross-sectional view taken in the direction of the - arrow in Fig. 3. , FIG. 5 is a cross-sectional view taken along the - arrow in FIG. 3. 24...Differential gear case, 24
a... Circumferential wall portion, 24b... Horizontal wall portion, 25,
26...Through hole.
Claims (1)
部２４ａに、潤滑油流通用の貫通孔２５を設け、
前記デフアレンシヤルギアーケース２４の横側壁
部２４ｂに、このデフアレンシヤルギアーケース
２４の回転軸芯方向に沿う潤滑油流通用の貫通孔
２６を設けてある差動装置。 A through hole 25 for lubricating oil circulation is provided in the circumferential wall portion 24a of the differential gear case 24,
A differential gear in which a through hole 26 for lubricating oil circulation is provided in the lateral wall portion 24b of the differential gear case 24 along the rotational axis direction of the differential gear case 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984031112U JPS60143963U (en) | 1984-03-02 | 1984-03-02 | Differential device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984031112U JPS60143963U (en) | 1984-03-02 | 1984-03-02 | Differential device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60143963U JPS60143963U (en) | 1985-09-24 |
| JPH0227245Y2 true JPH0227245Y2 (en) | 1990-07-24 |
Family
ID=30531420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984031112U Granted JPS60143963U (en) | 1984-03-02 | 1984-03-02 | Differential device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60143963U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728025B2 (en) * | 1976-07-07 | 1982-06-14 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728025U (en) * | 1980-07-24 | 1982-02-13 | ||
| JPS5899551U (en) * | 1981-12-28 | 1983-07-06 | 日産ディーゼル工業株式会社 | Differential lubrication system for vehicle final reducer |
-
1984
- 1984-03-02 JP JP1984031112U patent/JPS60143963U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728025B2 (en) * | 1976-07-07 | 1982-06-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60143963U (en) | 1985-09-24 |
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