JPS6141461Y2 - - Google Patents
Info
- Publication number
- JPS6141461Y2 JPS6141461Y2 JP1981086412U JP8641281U JPS6141461Y2 JP S6141461 Y2 JPS6141461 Y2 JP S6141461Y2 JP 1981086412 U JP1981086412 U JP 1981086412U JP 8641281 U JP8641281 U JP 8641281U JP S6141461 Y2 JPS6141461 Y2 JP S6141461Y2
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- sun gear
- spline
- wheel shaft
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
- Retarders (AREA)
Description
【考案の詳細な説明】
本考案は主として農用トラクタの前輪駆動装置
に関し、その目的はホイルシヤフトの軸方向の長
さを短くすることができるようにしてホイルシヤ
フトの加工及び組付作業を容易化し、しかもホイ
ルシヤフトを強固に支持できるようにすることで
ある。以下図面に基いて本考案を説明する。[Detailed description of the invention] The present invention mainly relates to a front wheel drive device for an agricultural tractor, and its purpose is to shorten the length of the wheel shaft in the axial direction, thereby facilitating processing and assembly of the wheel shaft. Moreover, it is possible to firmly support the wheel shaft. The present invention will be explained below based on the drawings.
前輪駆動装置の縦断後面図である添附図面にお
いて（図面の左側がトラクタの左右幅の中心
側）、１は遊星ギヤケースであつて、遊星ギヤケ
ース１は第１部材２と、この第１部材２に対向す
る第２部材３、第１、第２部材２，３３間に配置
された内歯ギヤ４とからなつており、ボルト５及
びノツクピン６によつて第１、第２部材２，３及
び内歯ギヤ４が一体的に結合されている。第１部
材２の左端面はキングピンサポート７に固着され
ており、キングピンサポート７は右フロントアク
スルケース（図示せず）の右端部に固着されたキ
ングピン（図示せず）に回動自在に支承されてい
る。 In the attached drawing which is a longitudinal cross-sectional rear view of the front wheel drive device (the left side of the drawing is the center side of the horizontal width of the tractor), 1 is a planetary gear case, and the planetary gear case 1 has a first member 2 and a first member 2. It consists of an opposing second member 3 and an internal gear 4 disposed between the first and second members 2 and 33. A tooth gear 4 is integrally connected. The left end surface of the first member 2 is fixed to a king pin support 7, and the king pin support 7 is rotatably supported by a king pin (not shown) fixed to the right end of a right front axle case (not shown). ing.
遊星ギヤケース１内にはキヤリヤ８や駆動シヤ
フト９が配置されれると共に、ホイルシヤフト１
０のボス部分１５が挿入され、されに前記内歯ギ
ヤ４と共に遊星歯車機構を構成するサンギヤ１２
及び遊星ギヤ１３が備えられている。 A carrier 8 and a drive shaft 9 are arranged inside the planetary gear case 1, as well as a wheel shaft 1.
0 is inserted into the sun gear 12 which together with the internal gear 4 constitutes a planetary gear mechanism.
and a planetary gear 13.
即ち駆動シヤフト９は第１部材２のボス部１６
の内周孔を通つてケース１内に突出し、駆動シヤ
フト９の右端部がホイルシヤフトボス部分１５の
内周面にブツシユ１７を介して回転自在に支承さ
れ、駆動シヤフト９の左寄り部分が第１部材２の
ボス部１６の内周面にブツシユ１８を介して回転
自在に支承されている。駆動シヤフト９の左端部
は自在継手を介してフロントアクスルケース内の
メインシヤフトに連結されている。駆動シヤフト
９には上記サンギヤ１２がスプライン嵌合してお
り、サンギヤ１２はその右端面がホイルシヤフト
ボス部分１５の左端面に当接している。即ちボス
部分１５によつてサンギヤ１２の抜け止め及び軸
方向の位置決めを行つているのである。 That is, the drive shaft 9 is connected to the boss portion 16 of the first member 2.
The right end of the drive shaft 9 is rotatably supported on the inner circumferential surface of the wheel shaft boss portion 15 via a bush 17, and the left side portion of the drive shaft 9 protrudes into the case 1 through the inner peripheral hole of the wheel shaft boss portion 15. It is rotatably supported on the inner circumferential surface of the boss portion 16 of the member 2 via a bush 18 . The left end of the drive shaft 9 is connected to a main shaft in the front axle case via a universal joint. The sun gear 12 is spline-fitted to the drive shaft 9, and the right end surface of the sun gear 12 is in contact with the left end surface of the wheel shaft boss portion 15. That is, the boss portion 15 prevents the sun gear 12 from coming off and positions it in the axial direction.
ホイルシヤフト１０の右端部分にはホイル取付
フランジ部１９が形成されており、フランジ部１
９に前輪ホイル２１が固着されている。ホイルシ
ヤフト１０はそのボス部分１５の外周側がキヤリ
ヤ８の右側部分の内周側にスプライン嵌合すると
共に、フランジ部１９がキヤリヤ８の右端面にボ
ルト２０によに剛直に固定されており、キヤリヤ
８と一体に回転するようになつている。 A wheel mounting flange portion 19 is formed at the right end portion of the wheel shaft 10, and the flange portion 1
A front wheel wheel 21 is fixed to 9. The outer circumferential side of the wheel shaft 10 has a boss portion 15 that is spline-fitted to the inner circumferential side of the right side portion of the carrier 8, and a flange portion 19 is rigidly fixed to the right end surface of the carrier 8 by bolts 20. It is designed to rotate together with 8.
キヤリヤ８はその左右両端部分の外周側が軸受
２２，２３を介して第１、第２部材２，３に回転
自在に支承されており、円周上等間隔を隔てた複
数箇所にそれぞれ１対のホルダ部８ａが形成され
ている。ホルダ部８ａにはピン２５によつ筒軸２
６が固定されていて、その筒軸２６にブツシユ２
７を介して遊星ギヤ１３が回転自在に支承されて
いる。遊星ギヤ１３はサンギヤ１２と内歯ギヤ４
とに同時に噛み合つている。またキヤリヤ８のス
プライン部分８ｂの内径D1はサンギヤ１２の外
径D2より大きく形成されており、ホイルシヤフ
ト１０を取り外すだけで、サンギヤ１２をスプラ
イン部分８ｂの内周孔を通して駆動シヤフト９か
ら取り外すことができるようになつている。 The carrier 8 is rotatably supported by the first and second members 2 and 3 via bearings 22 and 23 on the outer circumferential sides of both left and right end portions, and has a pair of bearings at a plurality of locations equally spaced on the circumference. A holder portion 8a is formed. The cylinder shaft 2 is attached to the holder part 8a by a pin 25.
6 is fixed, and the bush 2 is attached to the cylindrical shaft 26.
A planetary gear 13 is rotatably supported via 7. The planetary gear 13 includes the sun gear 12 and the internal gear 4.
are engaged at the same time. In addition, the inner diameter D 1 of the spline portion 8b of the carrier 8 is larger than the outer diameter D 2 of the sun gear 12, and simply by removing the wheel shaft 10, the sun gear 12 can be removed from the drive shaft 9 through the inner peripheral hole of the spline portion 8b. It is now possible to do so.
上記のような構成の駆動装置を組み立てる場合
には、予め第１部材２をキングピンサポート７に
固着すると同時に駆動シヤフト９をボス部１６に
挿通してサンギヤ１２をスプライン嵌合してお
き、一方第２部材３にはキヤリヤ８を軸受２３を
介して装着すると同様にキヤリヤ８にホイルシヤ
フト１０をボルト２０によつて固着しておき、さ
らにキヤリヤ８には軸受２２や遊星ギヤ１３を装
着して１つのユニツトとしておき、この第２部材
３等からなる１つのユニツトをボルト５及びノツ
クピン６によつて内歯ギヤ４と共に第１部材２に
連結するのである。このときホイルシヤフトボス
部分１５の左端面がサンギヤ１２の右端面に当接
し、サンギヤ１２の駆動シヤフト９上の位置を規
制する。 When assembling the drive device configured as described above, the first member 2 is fixed to the king pin support 7 in advance, and at the same time the drive shaft 9 is inserted into the boss portion 16 and the sun gear 12 is spline-fitted. The carrier 8 is attached to the 2 member 3 via a bearing 23. Similarly, the wheel shaft 10 is fixed to the carrier 8 with a bolt 20, and the bearing 22 and the planetary gear 13 are attached to the carrier 8. One unit consisting of the second member 3 and the like is connected to the first member 2 together with the internal gear 4 by bolts 5 and knock pins 6. At this time, the left end surface of the wheel shaft boss portion 15 comes into contact with the right end surface of the sun gear 12 to restrict the position of the sun gear 12 on the drive shaft 9.
組立後にサンギヤ１２のみを取り替える場合、
例えばサンギヤ１２が摩耗したり破損したときに
取り替える場合には、ホイルシヤフト１０をキヤ
リヤ８から取り外すだけで、サンギヤ１２を駆動
シヤフト９から取り外してケース１外に取り出す
ことができる。 When replacing only the sun gear 12 after assembly,
For example, when replacing the sun gear 12 when it is worn or damaged, the sun gear 12 can be removed from the drive shaft 9 and taken out of the case 1 by simply removing the wheel shaft 10 from the carrier 8.
以上説明したように本考案によると：
(1) キヤリヤ８自体を遊星ギヤケース１に回転自
在に支承し、このキヤリヤ８にホイルシヤフト
１０をスプライン嵌合すると共にフランジ部１
９をボルト２０によりキヤリヤ８に固定してい
るので、ホイルシヤフトボス部分１５を遊星ギ
ヤケース１に直線支承させる必要がなくなり、
ボス部分１５の長さを大幅に短くすることがで
きる。従つてホイルシヤフト１０の機械加工作
業が容易になり、しかもボス部分１５の長さが
短いためホイルシヤフト１０のキヤリヤ８への
組付作業も容易になる。 As explained above, according to the present invention: (1) The carrier 8 itself is rotatably supported on the planetary gear case 1, and the wheel shaft 10 is spline-fitted to the carrier 8, and the flange portion 1
9 is fixed to the carrier 8 by the bolt 20, there is no need to linearly support the wheel shaft boss portion 15 on the planetary gear case 1.
The length of the boss portion 15 can be significantly shortened. Therefore, the machining work of the wheel shaft 10 is facilitated, and since the length of the boss portion 15 is short, the work of assembling the wheel shaft 10 to the carrier 8 is also facilitated.
(2) キヤリヤ８とホイルシヤフト１０はボルト２
０によつて剛直に一体物として結合されている
ので、ボス部分１５の長さが短くてもホイルシ
ヤフト１０はキヤリヤ８を介して遊星ギヤケー
ス１に強固に支持されることになる。即ちボス
部分１５の長さが短くて簡単に加工できるホイ
ルシヤフト１０でありながら、その支持構造は
極めて強固になるのである。(2) Carrier 8 and wheel shaft 10 are bolt 2
Since the wheel shaft 10 is rigidly connected to the planetary gear case 1 by the carrier 8, even if the length of the boss portion 15 is short, the wheel shaft 10 is firmly supported by the planetary gear case 1 via the carrier 8. That is, although the wheel shaft 10 has a short boss portion 15 and can be easily machined, its support structure is extremely strong.
(3) ギヤケース組立後は、内歯ギヤ４や第２部材
３等を取り外さなくとも、サンギヤ１２のみを
極めて簡単に取り替えることができる。即ちキ
ヤリヤ８には軸方向に貫通する内周孔を形成し
ており、一方サンギヤ１２は駆動シヤフト９と
は別体に形成されると共に、上記内周孔内で駆
動シヤフト９にスプライン嵌合しており、しか
もボス部分１５の端縁でサンギヤ１２の軸方向
位置を規制をし、内周孔のスプライン部分８ｂ
の内径D1をサンギヤ１２の外径D2よりも大き
く形成している。従つてホイルシヤフト１０の
フランジ部１９をキヤリヤ８から取り外すだけ
で、サンギヤ１２のみをキヤリヤ８の貫通内周
孔を通して簡単に取り替えることができる。(3) After the gear case is assembled, only the sun gear 12 can be replaced extremely easily without removing the internal gear 4, the second member 3, etc. That is, the carrier 8 is formed with an inner peripheral hole that penetrates in the axial direction, and the sun gear 12 is formed separately from the drive shaft 9 and is spline-fitted to the drive shaft 9 within the inner peripheral hole. Moreover, the axial position of the sun gear 12 is restricted by the edge of the boss portion 15, and the spline portion 8b of the inner peripheral hole
The inner diameter D 1 of the sun gear 12 is larger than the outer diameter D 2 of the sun gear 12 . Therefore, by simply removing the flange portion 19 of the wheel shaft 10 from the carrier 8, only the sun gear 12 can be easily replaced through the through-inner circumferential hole of the carrier 8.
(4) サンギヤ１を駆動シヤフト９にスプライン嵌
合し、取付フランジ１９のボス部分１５の軸方
向端縁によりサンギヤ１２の駆動シヤフト上の
位置を規制しているので、組立て時にスナツプ
リング等の位置決め部材の部品点数を削減で
き、また駆動シヤフト９は取り替える必要な
く、大変経済的である。(4) The sun gear 1 is spline-fitted to the drive shaft 9, and the position of the sun gear 12 on the drive shaft is regulated by the axial edge of the boss portion 15 of the mounting flange 19, so a positioning member such as a snap spring is used during assembly. The number of parts can be reduced, and the drive shaft 9 does not need to be replaced, making it very economical.
図面は本考案による前輪駆動装置の縦断後面図
である。１……遊星ギヤケース、４……内歯ギ
ヤ、８……キヤリヤ、９……駆動シヤフト、１０
……ホイルシヤフト、１２……サンギヤ、１３…
…遊星ギヤ、１９……フランジ部。
The drawing is a longitudinal cross-sectional rear view of the front wheel drive device according to the present invention. 1... Planetary gear case, 4... Internal gear, 8... Carrier, 9... Drive shaft, 10
...Wheel shaft, 12...Sun gear, 13...
...Planetary gear, 19...flange part.
Claims (1)
に貫通する内周孔を有するキヤリヤを回転自在に
支承し、キヤリヤには上記内歯ギヤに噛み合う遊
星ギヤを備え、キヤリヤの内周孔内に突入する駆
動シヤフトを遊星ギヤケースに回転自在に支承す
ると共に、駆動シヤフトの上記内周孔内の部分に
サンギヤをスプライン嵌合し、キヤリヤの内周孔
にサンギヤの外径よりも大きい内径のスプライン
部分を形成し、該スプライン部分にホイルシヤフ
トのボス部分をスプライン嵌合すると共に、ボス
部分の軸方向端縁をサンギヤの端縁に当接させる
ことによりサンギヤを軸方向に位置決めし、ホイ
ルシヤフトのホイル取付フランジ部をボルトによ
りキヤリヤの軸方向端面に固定したことを特徴と
する農用トラクタ等の前輪駆動装置。 A carrier having an inner peripheral hole penetrating in the axial direction is rotatably supported in a planetary gear case having an internal gear, and the carrier is provided with a planetary gear that meshes with the internal gear and projects into the inner peripheral hole of the carrier. A drive shaft is rotatably supported in the planetary gear case, and a sun gear is spline-fitted into the inner hole of the drive shaft, and a spline portion with an inner diameter larger than the outer diameter of the sun gear is fitted into the inner hole of the carrier. The boss portion of the wheel shaft is spline-fitted to the spline portion, and the axial edge of the boss portion is brought into contact with the edge of the sun gear to position the sun gear in the axial direction, and the wheel of the wheel shaft is mounted. A front wheel drive device for an agricultural tractor, etc., characterized in that a flange portion is fixed to an axial end face of a carrier with bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981086412U JPS6141461Y2 (en) | 1981-06-11 | 1981-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981086412U JPS6141461Y2 (en) | 1981-06-11 | 1981-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57198445U JPS57198445U (en) | 1982-12-16 |
| JPS6141461Y2 true JPS6141461Y2 (en) | 1986-11-26 |
Family
ID=29881641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981086412U Expired JPS6141461Y2 (en) | 1981-06-11 | 1981-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6141461Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2824100B2 (en) * | 1990-01-09 | 1998-11-11 | 株式会社ハーモニック・ドライブ・システムズ | Planetary gear set |
| JP5868677B2 (en) * | 2011-11-30 | 2016-02-24 | ナブテスコ株式会社 | Reduction gear |
| US8808133B2 (en) * | 2012-05-30 | 2014-08-19 | Fairfield Manufacturing Company, Inc. | Overload protection |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5187659A (en) * | 1975-01-23 | 1976-07-31 | Caterpillar Tractor Co |
-
1981
- 1981-06-11 JP JP1981086412U patent/JPS6141461Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5187659A (en) * | 1975-01-23 | 1976-07-31 | Caterpillar Tractor Co |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57198445U (en) | 1982-12-16 |
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