JPS6234051Y2 - - Google Patents
Info
- Publication number
- JPS6234051Y2 JPS6234051Y2 JP1982067011U JP6701182U JPS6234051Y2 JP S6234051 Y2 JPS6234051 Y2 JP S6234051Y2 JP 1982067011 U JP1982067011 U JP 1982067011U JP 6701182 U JP6701182 U JP 6701182U JP S6234051 Y2 JPS6234051 Y2 JP S6234051Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- bearing
- partition wall
- case
- clutch
- 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
- 230000005540 biological transmission Effects 0.000 claims description 43
- 238000005192 partition Methods 0.000 claims description 27
- 239000003921 oil Substances 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 6
- 235000019198 oils Nutrition 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Sealing Devices (AREA)
- General Details Of Gearings (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、ダブルクラツチからの動力を二重軸
を介してミツシヨンへ伝達するように構成したト
ラクタの二重軸支承構造に関する。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a dual shaft support structure for a tractor configured to transmit power from a double clutch to a transmission via a double shaft.
従来の技術
例えば農用トラクタにおいては、エンジンから
走行系動力とPTO系動力とを得るために、メイ
ンクラツチに乾式のダブルクラツチを使用し、ク
ラツチペダルの２段階踏込みで走行系動力断接と
走行系及びPTO系動力断接とを行なうようにな
つており、このダブルクラツチから走行変速機構
及びPTO変速機構への動力伝達は二重軸によつ
て行なつている。Conventional technology For example, in agricultural tractors, a dry double clutch is used for the main clutch in order to obtain drive system power and PTO system power from the engine. and PTO system power connection/disconnection, and power transmission from this double clutch to the traveling transmission mechanism and the PTO transmission mechanism is performed by dual shafts.
二重軸には各軸のエンジン側端部（前部）にク
ラツチが連結され、他端部（後部）に伝動ギヤを
有し且つミツシヨンケース内の隔壁に支承されて
いる。 A clutch is connected to the engine-side end (front part) of each of the double shafts, a transmission gear is provided at the other end (rear part), and the dual shafts are supported by a partition wall inside the transmission case.
考案が解決しようとする問題点
前記従来技術においては、二重軸の各軸の後部
は軸受を介して支承されているが、前部との間の
中途部は支承されていなく、伝動ギヤを設けた後
部の支持も確実なものではなく、また、クラツチ
を断接するハブを設けた部分の支持強度も確保し
難い。更に、ミツシヨンケース内から乾式クラツ
チハウジング内への油洩れを生じることもある。Problems to be Solved by the Invention In the above-mentioned conventional technology, the rear part of each shaft of the double shaft is supported via a bearing, but the midway part between it and the front part is not supported, and the transmission gear is not supported. The support provided at the rear part is not reliable, and it is also difficult to ensure the support strength of the part where the hub for connecting and disconnecting the clutch is provided. Additionally, oil may leak from the transmission case into the dry clutch housing.
問題点を解決するための手段
本考案は、後部が第２隔壁１２に支承された中
軸１３の中途部と第１隔壁２に支承された外筒軸
１０の後部との間に内軸受２５と内オイルシール
２６とを介在させ、外筒軸１０の中途部と第１隔
壁２に固定されて前部にハブ８を外嵌した推進軸
ケース１１の筒部１１ａの中途部との間に外軸受
２１と外オイルシール２４とを介在させることに
よつて、前記従来技術の問題点を解決できるよう
にしたものである。Means for Solving the Problems The present invention provides an inner bearing 25 between the middle part of the center shaft 13 whose rear part is supported by the second partition wall 12 and the rear part of the outer cylinder shaft 10 which is supported by the first partition wall 2. An outer oil seal 26 is interposed between the middle part of the outer cylinder shaft 10 and the middle part of the cylindrical part 11a of the propulsion shaft case 11, which is fixed to the first partition wall 2 and has the hub 8 externally fitted in the front part. By interposing the bearing 21 and the outer oil seal 24, the problems of the prior art described above can be solved.
作 用
前部に走行クラツチ５が連結され後部が第２隔
壁１２に支承された中軸１３は、中途部が内軸受
２５を介して外筒軸１０の後部に支持されて軸振
れが防止され、前記内軸受２５を介して外筒軸１
０の後部に設けた伝動ギヤ１６は支持され、この
伝動ギヤ１６より前方の主軸受９によつて第１隔
壁２に支承された外筒軸１０は、前部にPTOク
ラツチ６を有していて、その中途部は第１隔壁２
の前面に固定の推進軸ケース１１の筒部１１ａに
外軸受２１を介して支持され、この外軸受２１を
介して推進軸ケース１１の筒部１１ａの前部に外
嵌したハブ８が支持されている。Function The center shaft 13, which is connected to the running clutch 5 at the front and supported by the second partition wall 12 at the rear, is supported at its midpoint by the rear of the outer cylindrical shaft 10 via the inner bearing 25 to prevent shaft vibration. Outer cylinder shaft 1 via the inner bearing 25
A transmission gear 16 provided at the rear of the transmission gear 16 is supported, and an outer cylindrical shaft 10 supported on the first bulkhead 2 by a main bearing 9 in front of the transmission gear 16 has a PTO clutch 6 at the front. The middle part is the first partition wall 2
The hub 8 is supported via an outer bearing 21 on the cylindrical portion 11a of the propulsion shaft case 11 fixed to the front surface of the cylindrical portion 11a of the propulsion shaft case 11. ing.
実施例
以下、本考案の実施例を図面に基いて説明す
る。Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.
第１，２図において、１はトラクタの車体一部
として構成された前部のクラツチケースで、その
後部に第１隔壁２を介してミツシヨンケース３が
一体的に連装されている。これら前後の一体ケー
スの前部にはエンジン（図示省略）が連結されて
いる。 In FIGS. 1 and 2, reference numeral 1 denotes a front clutch case constructed as a part of the vehicle body of a tractor, and a transmission case 3 is integrally connected to the rear of the clutch case with a first partition 2 interposed therebetween. An engine (not shown) is connected to the front portion of these front and rear integral cases.
エンジンの後部に取着したフライホイール４に
は走行クラツチ５とPTOクラツチ６とが連装さ
れて乾式のダブルクラツチが構成され、これがレ
リーズフオーク７とハブ８との段階的操作によつ
て断続応動される。 A travel clutch 5 and a PTO clutch 6 are connected to the flywheel 4 attached to the rear of the engine to form a dry double clutch, which is operated intermittently by the stepwise operation of the release fork 7 and the hub 8. Ru.
９は第１隔壁２の中央に嵌着した主軸受で、こ
の主軸受９を介して嵌挿された外筒軸１０は、そ
の前端をPTOクラツチ６に接続する一方、後端
部を主軸受９よりやや後方に突出させた格好とし
てある。この外筒軸１０の径外方向には、第１隔
壁２から前向きに突設した推進軸ケース１１が套
嵌状とされ、その筒部１１ａの前端に前記ハブ８
を前後摺動自在に嵌装すると共に、外筒軸１０を
支持するため外軸受２１を筒部１１ａの中途部内
周において介装してある。 Reference numeral 9 denotes a main bearing fitted in the center of the first partition wall 2. The outer cylindrical shaft 10 fitted through this main bearing 9 has its front end connected to the PTO clutch 6, while its rear end is connected to the main bearing. It is designed to protrude slightly further back than 9. A propulsion shaft case 11 projecting forward from the first partition wall 2 is fitted in the radially outward direction of the outer cylinder shaft 10, and the hub 8 is attached to the front end of the cylinder portion 11a.
In order to support the outer cylinder shaft 10, an outer bearing 21 is interposed at the inner periphery of the middle part of the cylinder part 11a.
一方、外筒軸１０には第２隔壁１２に後端が支
承されるように中軸１３が挿支され、その前端は
走行クラツチ５に接結されている。ここで中軸１
３の中途部を外筒軸１０で支持するための内軸受
２５を介装している。 On the other hand, a center shaft 13 is inserted into and supported by the outer cylinder shaft 10 so that its rear end is supported by the second partition wall 12, and its front end is connected to the traveling clutch 5. Here center axis 1
3 is interposed with an inner bearing 25 for supporting the middle part of the outer cylinder shaft 10.
こうして中軸１３に動力が伝達されると、中軸
１３の後部と上方に装架した走行カウンタ軸１４
との間に構成した常噛型走行変速系伝動ギヤ１５
によつて変速伝動が行なえる一方、外筒軸１０の
後端に備えた低速側PTO伝動ギヤ１６とその従
動ギヤ１７並びに中軸１３中途後方の高速側
PTO駆動ギヤ１８とその従動ギヤ１９とによつ
て、常噛式にPTOカウンタ軸２０が変速伝動さ
れ、後方に配置される他のPTOミツシヨンと組
み合わせてPTO変速系が構成されるものであ
る。 When the power is transmitted to the center shaft 13 in this way, the travel counter shaft 14 mounted on the rear and upper part of the center shaft 13
The transmission gear 15 of the continuous mesh traveling transmission system configured between
While variable speed transmission can be performed by
A PTO countershaft 20 is transmitted to change the speed by the PTO drive gear 18 and its driven gear 19 in a continuous mesh manner, and in combination with another PTO transmission disposed at the rear, a PTO transmission system is constructed.
これらクラツチ・ミツシヨン連装構造では、通
常前部を乾式のクラツチケース１となし後部は勿
論湿式のミツシヨンケース３とされている。 In these clutch and transmission joint structures, the front part is usually a dry clutch case 1, and the rear part is, of course, a wet transmission case 3.
前記外軸受２１は扁平コの字型外輪２２を有す
るニードル型であつて、前後にスラストリング２
３，２３を備えて推進軸ケース１１の筒部１１ａ
の中途部内周に配備され、その前寄りに外オイル
シール２４を密嵌して成る。一方、中軸１３の中
途部を軸支する内軸受２５も同じくニードル型と
されて、低速側PTO駆動ギヤ１６の内周に対応
して位置すると共に、その前寄りには特殊形状の
内オイルシール２６が外周金属環２７とゴム製オ
ーリングのバネ２８とを備えて配備され、この場
合内軸受２５と内オイルシール２６との間には、
内オイルシール２６に外周からオーバラツプして
径外方向への変形を一定に制限する補助カラー２
９が嵌装され、これがスペーサとしても機能する
ものである。 The outer bearing 21 is a needle type having a flat U-shaped outer ring 22, and has thrust rings 2 at the front and rear.
3 and 23, the cylindrical portion 11a of the propulsion shaft case 11
The outer oil seal 24 is tightly fitted to the front of the oil seal. On the other hand, the inner bearing 25 that supports the middle part of the center shaft 13 is also of the needle type, and is located corresponding to the inner circumference of the low-speed side PTO drive gear 16, and has a specially shaped inner oil seal near the front. 26 is provided with an outer peripheral metal ring 27 and a rubber O-ring spring 28, and in this case, between the inner bearing 25 and the inner oil seal 26,
An auxiliary collar 2 that overlaps the inner oil seal 26 from the outer periphery and limits deformation in the radial outward direction to a certain degree.
9 is fitted, which also functions as a spacer.
尚、内オイルシール２６の前方には、オイレス
ベアリングは一切構成されておらず、また一方前
記した主軸受９は軸支のより完全化をねらつて２
列に構成してある。 Note that no Oiles bearing is constructed in front of the inner oil seal 26, and on the other hand, the main bearing 9 mentioned above is constructed with two parts in order to achieve more complete shaft support.
It is organized into columns.
従つて上記構成においては、外軸受２１はミツ
シヨンケース３からの油の供給を受けて常に潤滑
と冷却を施されるからその損耗度も低く、これに
よつて二重軸全体の軸振れ、ガタは小さく抑えら
れ、且つ推進軸ケース１１間でのガタが少ないか
ら外オイルシール２４はその前方で安定・確実な
シール機能を果すものであり、これが内軸受２５
と内オイルシール２６についても同様であること
から、全体として非常に強固な軸支承構造と密閉
構造とを提供できるのであり、特に前部の外軸受
２１と主軸受９にて安定に支持された外筒軸１０
をもとにしてその後端のPTO駆動ギヤ１６内に
内軸受２５を配したのでその伝動の安定度・耐久
性も向上したものである。 Therefore, in the above configuration, the outer bearing 21 receives oil from the transmission case 3 and is constantly lubricated and cooled, so its wear is low, and this reduces the axial runout of the entire double shaft. Since the play is suppressed to a small level and there is little play between the propulsion shaft cases 11, the outer oil seal 24 performs a stable and reliable sealing function in front of it, and this is the inner bearing 25.
The same applies to the inner oil seal 26, so it is possible to provide a very strong shaft support structure and sealing structure as a whole, and in particular, it is stably supported by the front outer bearing 21 and the main bearing 9. Outer cylinder shaft 10
Based on this, an inner bearing 25 is placed inside the PTO drive gear 16 at the rear end, which improves the stability and durability of its power transmission.
即ち、本考案の二重軸の支承構造は、第２隔壁
１２を有するミツシヨンケース３を乾式クラツチ
ケース１の後部に第１隔壁２を介して連装し、第
１隔壁２を貫通した中軸１３の後部を第２隔壁１
２に支承し且つ前部に走行クラツチ５を連結し、
この中軸１３の第１隔壁２より後方部分に走行変
速系伝動ギヤを設け、第１隔壁２を貫通して中軸
１３に外嵌した外筒軸１０の前部にPTOクラツ
チ６を連結し且つ後部にPTO変速系伝動ギヤを
設け、この伝動ギヤの前方に外筒軸１０を第１隔
壁２に支承させる主軸受９を配置し、第１隔壁２
の前面に固定された推進軸ケース１１の筒部１１
ａを外筒軸１０の中途部に外嵌し、前記筒部１１
ａの前部に走行、PTOクラツチ５，６を断接す
るハブ８を摺動自在に外嵌したものにおいて、
主軸受９と筒部１１ａの前部との筒長中央部分
における外筒軸１０の外周面と筒部１１ａの内周
面との間に、外筒軸１０を回転自在に支承するニ
ードル型外軸受２１を設けて外筒軸１０をこの後
部と軸長中央部分を主軸受９及び外軸受２１によ
り支承し、更に、外軸受２１の前部側に、該外軸
受２１の潤滑油のクラツチケース１への流出を阻
止する外オイルシール２４を設け、
外筒軸１０の後部内周面と中軸１３の外周面と
の間でかつ外筒軸１０後部のPTO変速系伝動ギ
ヤ１６のギヤ幅内に収まるニードル型内軸受２５
を設けて中軸１３の軸長中間部分を、該内軸受２
５及び主軸受９を介して第１隔壁２側に支承し、
更に、内軸受２５の前部側に、該内軸受２５の潤
滑油のクラツチケース１への流出を阻止する内オ
イルシール２６を設けたものである。 That is, in the dual shaft support structure of the present invention, the transmission case 3 having the second partition wall 12 is connected to the rear of the dry clutch case 1 via the first partition wall 2, and the center shaft 13 passing through the first partition wall 2 is connected to the transmission case 3 having the second partition wall 12. The rear part of the second bulkhead 1
2 and connects a traveling clutch 5 to the front part,
A traveling transmission transmission gear is provided in the rear part of the center shaft 13 from the first partition wall 2, and the PTO clutch 6 is connected to the front part of the outer cylindrical shaft 10 which passes through the first partition wall 2 and is fitted onto the center shaft 13. A PTO transmission system transmission gear is provided in the transmission gear, and a main bearing 9 for supporting the outer cylinder shaft 10 on the first partition wall 2 is arranged in front of this transmission gear, and the main bearing 9 that supports the outer cylinder shaft 10 on the first partition wall 2
The cylindrical portion 11 of the propulsion shaft case 11 fixed to the front surface of the
a into the middle part of the outer cylinder shaft 10, and
In the case where a hub 8 is slidably fitted on the front part of the main bearing 9 and the front part of the cylindrical part 11a, the outer cylindrical shaft 10 is connected to the front part of the cylindrical part 11a. A needle-type outer bearing 21 that rotatably supports the outer cylinder shaft 10 is provided between the outer peripheral surface and the inner peripheral surface of the cylindrical portion 11a, and the outer cylinder shaft 10 is connected to the main bearing 9 and the central portion of the shaft length. It is supported by an outer bearing 21 and is further provided with an outer oil seal 24 on the front side of the outer bearing 21 to prevent lubricating oil from the outer bearing 21 from flowing out into the clutch case 1. A needle type inner bearing 25 that fits between the surface and the outer peripheral surface of the inner shaft 13 and within the gear width of the PTO transmission transmission gear 16 at the rear of the outer cylinder shaft 10.
is provided to connect the middle portion of the shaft length of the center shaft 13 to the inner bearing 2.
5 and supported on the first partition wall 2 side via the main bearing 9,
Furthermore, an inner oil seal 26 is provided on the front side of the inner bearing 25 to prevent lubricating oil from the inner bearing 25 from flowing out into the clutch case 1.
考案の効果
以上詳述した本考案によれば、主軸受９と筒部
１１ａの前部と筒長中央部分における外筒軸１０
の外周面と筒部１１ａの内周面との間に、外筒軸
１０を回転自在に支承するニードル型外軸受２１
を設けて外筒軸１０をこの後部と軸長中央部分を
主軸受９及び外軸受２１により支承しているの
で、前部にPTOクラツチ６を有する外筒軸１０
の軸振れをおさえたもとで確実に支承でき、外筒
軸１０と筒部１１ａ及び中軸１３との相互接触を
防止することができる。Effects of the invention According to the invention described in detail above, the main bearing 9, the outer cylinder shaft 10 at the front part of the cylinder part 11a, and at the central part of the cylinder length.
A needle type outer bearing 21 rotatably supports the outer cylinder shaft 10 between the outer peripheral surface of the cylinder part 11a and the inner peripheral surface of the cylinder part 11a.
The outer cylinder shaft 10 is supported by the main bearing 9 and the outer bearing 21 at the rear part and the central part of the shaft length.
It is possible to securely support the shaft while suppressing the shaft runout, and to prevent mutual contact between the outer cylinder shaft 10, the cylinder portion 11a, and the center shaft 13.
更に、外軸受２１の前部側に、該外軸受２１の
潤滑油のクラツチケース１への流出を阻止する外
オイルシール２４を設けているので、外軸受２１
で外筒軸１０を安定に支承しかつ外軸受２１を充
分に潤滑してこの焼付き等を防止したにも拘ら
ず、クラツチケース１への潤滑油の流出侵入は確
実に阻止し、従つて、クラツチケース１内の各ク
ラツチ５，６は乾式にできてそのメンテナンスも
容易となる。 Furthermore, an outer oil seal 24 is provided on the front side of the outer bearing 21 to prevent lubricating oil from the outer bearing 21 from flowing out into the clutch case 1.
Although the outer cylinder shaft 10 is stably supported and the outer bearing 21 is sufficiently lubricated to prevent seizure, etc., the lubricating oil is reliably prevented from leaking into the clutch case 1. Each of the clutches 5 and 6 in the clutch case 1 can be made of a dry type, making maintenance easier.
更に、外筒軸１０の後部内周面と中軸１３の外
周面との間でかつ外筒軸１０後部のPTO変速系
伝動ギヤ１６のギヤ幅内に収まるニードル型内軸
受２５を設けて中軸１３の筒長中間部分を、該内
軸受２５及び主軸受９を介して第１隔壁２側に支
承しているので、外筒軸１０よりも長大で軸振れ
し易い中軸１３を安定して確実に支持できるし、
外筒軸１０の確実な支持と相まつて内外二重軸構
造の外筒軸１０及び中軸１３の相互接触を確実に
防止できる。 Further, a needle type inner bearing 25 is provided between the rear inner peripheral surface of the outer cylinder shaft 10 and the outer peripheral surface of the center shaft 13 and fits within the gear width of the PTO transmission transmission gear 16 at the rear of the outer cylinder shaft 10. Since the intermediate portion of the cylinder length is supported on the first partition wall 2 side via the inner bearing 25 and the main bearing 9, the center shaft 13, which is longer than the outer cylinder shaft 10 and is prone to shaft runout, can be stably and reliably supported. I can support it,
Together with the reliable support of the outer cylinder shaft 10, it is possible to reliably prevent the outer cylinder shaft 10 and the center shaft 13 of the dual inner and outer shaft structure from coming into contact with each other.
この際、ニードル型内軸受２５はPTO変速系
伝動ギヤ１６のギヤ幅内に収まつていることか
ら、中軸１３を支承するのに前後長を非常に短く
することができる。 At this time, since the needle type inner bearing 25 is within the gear width of the PTO transmission transmission gear 16, the longitudinal length can be made very short to support the center shaft 13.
また、内軸受２５の前部側に、該内軸受２５の
潤滑油のクラツチケース１への流出を阻止する内
オイルシール２６を設けたものであるから、中軸
１３を内軸受２５で確実に支承しかつ該内軸受２
５を充分に潤滑してこの焼付き等を防止したにも
拘らず、中軸１３と外筒軸１０との間を介してク
ラツチケース１に流出侵入する潤滑油の該流出は
確実に阻止できる。 Furthermore, since an inner oil seal 26 is provided on the front side of the inner bearing 25 to prevent the lubricating oil from the inner bearing 25 from flowing out into the clutch case 1, the inner shaft 13 is surely supported by the inner bearing 25. And the inner bearing 2
5 is sufficiently lubricated to prevent seizure, etc., it is possible to reliably prevent the lubricating oil from flowing out and entering the clutch case 1 through the space between the inner shaft 13 and the outer cylinder shaft 10.
従つて、本考案は内外二重軸構造であつても軸
の安定した支持と、該支持のための軸受の充分な
潤滑を保証しながらも、潤滑油のクラツチケース
への流出を阻止したものとして実益大である。 Therefore, the present invention prevents lubricating oil from flowing into the clutch case while ensuring stable support of the shaft and sufficient lubrication of the bearings for this support even in the case of a dual-shaft structure. It is very profitable.
第１図は本考案の一実施例を示す断面図、第２
図はその要部拡大断面図である。
１……クラツチケース、２……第１隔壁、３…
…ミツシヨンケース、５……走行クラツチ、６…
…PTOクラツチ、９……主軸受、１０……外筒
軸、１１……推進軸ケース、１２……第２隔壁、
１３……中軸、１６……伝動ギヤ（低速側PTO
駆動ギヤ）、２１……外軸受、２４……外オイル
シール、２５……内軸受、２６……内オイルシー
ル。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is an enlarged sectional view of the main part. 1... Clutch case, 2... First bulkhead, 3...
...Mission case, 5...Traveling clutch, 6...
... PTO clutch, 9 ... Main bearing, 10 ... Outer cylinder shaft, 11 ... Propulsion shaft case, 12 ... Second bulkhead,
13...Center shaft, 16...Transmission gear (low speed side PTO
drive gear), 21...outer bearing, 24...outer oil seal, 25...inner bearing, 26...inner oil seal.
Claims (1)
式クラツチケース１の後部に第１隔壁２を介して
連装し、第１隔壁２を貫通した中軸１３の後部を
第２隔壁１２に支承し且つ前部に走行クラツチ５
を連結し、この中軸１３の第１隔壁２より後方部
分に走行変速系伝動ギヤ１５を設け、第１隔壁２
を貫通して中軸１３に外嵌した外筒軸１０の前部
にPTOクラツチ６を連結し且つ後部にPTO変速
系伝動ギヤ１６を設け、この伝動ギヤ１６の前方
に外筒軸１０を第１隔壁２に支承させる主軸受９
を配置し、第１隔壁２の前面に固定された推進軸
ケース１１の筒部１１ａを外筒軸１０の中途部に
外嵌し、前記筒部１１ａの前部に走行、PTOク
ラツチ５，６を断接するハブ８を摺動自在に外嵌
したものにおいて、 主軸受９と筒部１１ａの前部との筒長中央部分
における外筒軸１０の外周面と筒部１１ａの内周
面との間に、外筒軸１０を回転自在に支承するニ
ードル型外軸受２１を設けて外筒軸１０をこの後
部と軸長中央部分を主軸受９及び外軸受２１によ
り支承し、更に、外軸受２１の前部側に、該外軸
受２１の潤滑油のクラツチケース１への流出を阻
止する外オイルシール２４を設け、 外筒軸１０の後部内周面と中軸１３の外周面と
の間でかつ外筒軸１０後部のPTO変速系伝動ギ
ヤ１６のギヤ幅内に収まるニードル型内軸受２５
を設けて中軸１３の軸長中間部分を、該内軸受２
５及び主軸受９を介して第１隔壁２側に支承し、
更に、内軸受２５の前部側に、該内軸受２５の潤
滑油のクラツチケース１への流出を阻止する内オ
イルシール２６を設けたことを特徴とするトラク
タの二重軸支承構造。[Claims for Utility Model Registration] A transmission case 3 having a second partition wall 12 is connected to the rear part of the dry clutch case 1 via the first partition wall 2, and the rear part of the center shaft 13 passing through the first partition wall 2 is attached to the rear part of the dry clutch case 1. A clutch 5 is supported on the bulkhead 12 and runs at the front.
A travel transmission transmission gear 15 is provided at the rear portion of the center shaft 13 from the first partition wall 2, and the first partition wall 2
The PTO clutch 6 is connected to the front part of the outer cylindrical shaft 10 which passes through the center shaft 13 and is fitted onto the inner shaft 13, and a PTO transmission transmission gear 16 is provided at the rear. Main bearing 9 supported by bulkhead 2
The cylindrical part 11a of the propulsion shaft case 11 fixed to the front surface of the first partition wall 2 is fitted onto the middle part of the outer cylindrical shaft 10, and the PTO clutches 5, 6 run on the front part of the cylindrical part 11a. In the case where a hub 8 is slidably fitted on the outside for connecting and disconnecting, the outer peripheral surface of the outer cylinder shaft 10 and the inner peripheral surface of the cylinder part 11a at the central part of the cylinder length between the main bearing 9 and the front part of the cylinder part 11a. In between, a needle type outer bearing 21 that rotatably supports the outer cylinder shaft 10 is provided, and the outer cylinder shaft 10 is supported at the rear part and the central part of the shaft length by the main bearing 9 and the outer bearing 21. An outer oil seal 24 is provided on the front side of the outer bearing 21 to prevent the lubricating oil from flowing into the clutch case 1, and between the rear inner circumferential surface of the outer cylindrical shaft 10 and the outer circumferential surface of the center shaft 13, A needle type inner bearing 25 that fits within the gear width of the PTO transmission transmission gear 16 at the rear of the outer cylinder shaft 10
is provided to connect the middle portion of the shaft length of the center shaft 13 to the inner bearing 2.
5 and supported on the first partition wall 2 side via the main bearing 9,
The dual shaft support structure for a tractor is further characterized in that an inner oil seal 26 is provided on the front side of the inner bearing 25 to prevent lubricating oil from the inner bearing 25 from flowing out into the clutch case 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982067011U JPS58169253U (en) | 1982-05-07 | 1982-05-07 | Tractor two-wheel shaft support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982067011U JPS58169253U (en) | 1982-05-07 | 1982-05-07 | Tractor two-wheel shaft support structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58169253U JPS58169253U (en) | 1983-11-11 |
| JPS6234051Y2 true JPS6234051Y2 (en) | 1987-08-31 |
Family
ID=30076852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982067011U Granted JPS58169253U (en) | 1982-05-07 | 1982-05-07 | Tractor two-wheel shaft support structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58169253U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6032614B2 (en) * | 2013-08-12 | 2016-11-30 | 本田技研工業株式会社 | Vehicle transmission |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817144Y2 (en) * | 1978-05-27 | 1983-04-07 | 株式会社クボタ | gear transmission |
| JPS55145751U (en) * | 1979-04-09 | 1980-10-20 | ||
| JPS6039564Y2 (en) * | 1980-03-26 | 1985-11-27 | トヨタ自動車株式会社 | Automotive gear transmission |
-
1982
- 1982-05-07 JP JP1982067011U patent/JPS58169253U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58169253U (en) | 1983-11-11 |
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