JPS626141B2 - - Google Patents
Info
- Publication number
- JPS626141B2 JPS626141B2 JP57103583A JP10358382A JPS626141B2 JP S626141 B2 JPS626141 B2 JP S626141B2 JP 57103583 A JP57103583 A JP 57103583A JP 10358382 A JP10358382 A JP 10358382A JP S626141 B2 JPS626141 B2 JP S626141B2
- Authority
- JP
- Japan
- Prior art keywords
- case
- output shaft
- gear
- lower case
- shaft
- 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
Landscapes
- General Details Of Gearings (AREA)
- Structure Of Transmissions (AREA)
Description
【発明の詳細な説明】
本発明は舶用推進装置に適した減速逆転機のケ
ースに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a case for a speed reducer/reverser suitable for a marine propulsion system.
一般に舶用減速逆転機の下部ケースはオイルパ
ンを構成しているので寸法形状が大きい。そして
従来の舶用減速逆転機では、船体に固定される据
付足が下部ケースに設けてあるので、下部ケース
の肉厚を大きくして強度を高めている。このよう
に従来の減速逆転機では大形かつ厚肉の下部ケー
スが使用されているので、全体重量がきわめて大
きくなつている。又従来品では出力軸のスラスト
が下部ケースに強く加わるので、この点において
も下部ケースの肉厚を大きくして強度が高めてお
く必要があり、重量が増加する一因となつてい
る。 Generally, the lower case of a marine speed reducer/reverser constitutes an oil pan and is therefore large in size and shape. In the conventional marine speed reducer/reverser, the installation feet that are fixed to the ship's body are provided in the lower case, so the thickness of the lower case is increased to increase its strength. As described above, the conventional speed reduction/reversing machine uses a large and thick lower case, resulting in an extremely large overall weight. In addition, in conventional products, the thrust of the output shaft is strongly applied to the lower case, so in this respect as well, it is necessary to increase the thickness of the lower case to increase its strength, which is one of the reasons for the increase in weight.
本発明は上記従来の不具合を解決するために、
下部ケースとは別体の中間ケースに据付足を設け
たもので、次のように構成されている。 In order to solve the above-mentioned conventional problems, the present invention has the following features:
This is an intermediate case that is separate from the lower case and has installation feet, and is constructed as follows.
即ち本発明は、入力軸と出力軸と上記両軸を連
結する変速ユニツトを備えた減速逆転機におい
て、減速逆転機のケースを、下部ケースと中間ケ
ースと上部ケースとの分割体で形成し、入力軸と
変速ユニツトのサポート軸との軸受部を中間ケー
スと上部ケースだけに形成し、下部ケースにより
オイルパンを形成し、減速逆転機の据付足を中間
ケースに一体に設け、上記出力軸を中間ケースと
下部ケースとの分割面に沿つて配置し、上記分割
面を出力軸の下端よりも上側かつ出力軸の中心よ
りも下側に配置したことを特徴としている。 That is, the present invention provides a reduction/reversal machine equipped with an input shaft, an output shaft, and a transmission unit that connects the two shafts, in which the case of the reduction/reversal machine is formed of a divided body of a lower case, an intermediate case, and an upper case, The bearings for the input shaft and the support shaft of the transmission unit are formed only in the intermediate case and the upper case, the oil pan is formed by the lower case, the installation foot of the reduction/reversing gear is integrally provided in the intermediate case, and the output shaft is It is characterized in that it is disposed along a dividing plane between the intermediate case and the lower case, and that the dividing plane is disposed above the lower end of the output shaft and below the center of the output shaft.
次に図面により実施例を説明する。 Next, embodiments will be described with reference to the drawings.
垂直縦断面図である第１図において、エンジン
フライホイール１にダンパー２を介して減速逆転
機の入力軸３が連結している。出力軸４は入力軸
３の後方（第１図の右方）かつ下方に位置し、入
力軸３と平行に延びている。入力軸３の後端部に
は入力ギヤー５が設けられ、出力軸４の前端部に
は出力ギヤー６が設けてある。 In FIG. 1, which is a vertical cross-sectional view, an input shaft 3 of a speed reducer and reverser is connected to an engine flywheel 1 via a damper 2. As shown in FIG. The output shaft 4 is located behind the input shaft 3 (to the right in FIG. 1) and below, and extends parallel to the input shaft 3. An input gear 5 is provided at the rear end of the input shaft 3, and an output gear 6 is provided at the front end of the output shaft 4.
第１図の一部切欠き−矢視図である第２図
において、Ｈ−Ｈは入力軸３及び出力軸４の中心
を含む垂直中心面で、中心面Ｈ−Ｈを対称中心と
してギヤー５，６の上方には１対の正転ユニツト
Ｆ、Ｆが設けられ、左右の斜上方には逆転ユニツ
トＧ、Ｇが設けてある。第１図において正転ユニ
ツトＦは中間ギヤー７と出力ピニオン８と両者
７，８を連結できる油圧多板クラツチ９とを同芯
に備え、中間ギヤー７が入力ギヤー５と噛み合
い、出力ピニオン８が出力ギヤー６と噛み合つて
いる。第２図の左右１対の正転ユニツトＦ、Ｆは
互に同一の構造及び寸法を備えている。逆転ユニ
ツトＧ、ＧもユニツトＦと略同一の構造及び寸法
を備え、ユニツトＧの中間ギヤー７′が入力ギヤ
ー５とは噛み合つておらず、ユニツトＦの中間ギ
ヤー７と噛み合つている点だけが異なつている。
従つて正転ユニツトＦのクラツチ９を接続する
と、入力ギヤー５の回転力は両ユニツトＦの中間
ギヤー７、クラツチ９、出力ピニオン８を経て出
力ギヤー６に伝わり、出力軸４は入力軸３と同方
向に回転する。又逆転ユニツトＧのクラツチ９′
を接続すると、入力ギヤー５の回転力は正転ユニ
ツトＦの中間ギヤー７から逆転ユニツトＧの中間
ギヤー７′、クラツチ９′、出力ピニオン８を経て
出力ギヤー６に伝わり、出力軸４は入力軸３と逆
方向に回転する。 In FIG. 2, which is a partially cutaway view of FIG. , 6 are provided with a pair of forward rotation units F, F, and diagonally above the left and right reverse rotation units G, G are provided. In FIG. 1, the normal rotation unit F includes an intermediate gear 7, an output pinion 8, and a hydraulic multi-plate clutch 9 that can connect both 7 and 8, concentrically, the intermediate gear 7 meshes with the input gear 5, and the output pinion 8 It meshes with output gear 6. The pair of right and left normal rotation units F and F in FIG. 2 have the same structure and dimensions. Reversing units G and G also have almost the same structure and dimensions as unit F, except that intermediate gear 7' of unit G does not mesh with input gear 5, but meshes with intermediate gear 7 of unit F. are different.
Therefore, when the clutch 9 of the normal rotation unit F is connected, the rotational force of the input gear 5 is transmitted to the output gear 6 via the intermediate gear 7 of both units F, the clutch 9, and the output pinion 8, and the output shaft 4 is connected to the input shaft 3. Rotate in the same direction. Also, clutch 9' of reversing unit G
When connected, the rotational force of the input gear 5 is transmitted from the intermediate gear 7 of the forward rotation unit F to the output gear 6 via the intermediate gear 7' of the reverse rotation unit G, the clutch 9', and the output pinion 8, and the output shaft 4 is connected to the input shaft. Rotate in the opposite direction to 3.
減速逆転機のケースは下部ケースＡ、中間ケー
スＢ、上部ケースＣの３分割体により形成されて
おり、ボルト１０，１１により互に固定されてい
る。ケースＡ、Ｂ、Ｃの分割面（合せ面）ａ−
ａ、ｂ−ｂは水平である。下部ケースＡと中間ケ
ースＢの分割面ａ−ａは出力軸中心Ｏよりも下側
にあり、出力軸４は下部だけが分割面ａ−ａより
も下側にある。中間ケースＢと上部ケースＣの分
割面ｂ−ｂは両方の正転ユニツトＦ、Ｆの中心
ｆ、ｆを通つている。下部ケースＡはオイルパン
を形成している。中間ケースＢは減速逆転機全体
として見た場合に軸受部の主要部を形成してお
り、入力軸３及び逆転ユニツトＧのサポート軸１
２を全周にわたつて支持すると共に、出力軸４の
上部と中間部及び正転ユニツトＦのサポート軸１
３の下半部を支持している。中間ケースＢの左右
両側壁には水平に突出した据付足１５，１５が一
体に設けてあり、据付足１５は図示されていない
船体の機関台にボルト止めされるようになつてい
る。上部ケースＣの上端面Ｃ−Ｃには蓋Ｄがボル
ト止めされている。なお据付足１５をケースＢと
別体に設けることもできる。 The case of the speed reduction/reversing machine is formed into three parts: a lower case A, an intermediate case B, and an upper case C, which are fixed to each other by bolts 10 and 11. Dividing surface (mating surface) a- of cases A, B, and C
a, bb are horizontal. The dividing plane a-a of the lower case A and the middle case B is below the output shaft center O, and only the lower part of the output shaft 4 is below the dividing plane a-a. The dividing plane bb of the intermediate case B and the upper case C passes through the centers f and f of both normal rotation units F and F, respectively. The lower case A forms an oil pan. The intermediate case B forms the main part of the bearing part when viewed as a whole of the speed reduction/reversing machine, and is used for the input shaft 3 and the support shaft 1 of the reversing unit G.
2 over the entire circumference, and the upper and middle parts of the output shaft 4 and the support shaft 1 of the normal rotation unit F.
It supports the lower half of 3. Horizontally protruding installation feet 15, 15 are integrally provided on both left and right walls of the intermediate case B, and the installation feet 15 are bolted to an engine stand of the hull (not shown). A lid D is bolted to the upper end surface CC of the upper case C. Note that the installation foot 15 can also be provided separately from the case B.
第１図の如く下部ケースＡと中間ケースＢは前
後方向（第１図の左右方向）の中間部にボス１６
を備えている。両ケースＡ、Ｂのボス１６は互に
接合されて環状に延びており、ボス１６の内筒面
により出力軸４の小径前端が円筒ころ軸受１７を
介して支持されている。前記出力ギヤー６は軸受
１７に隣接してその後方（第１図の右方）に設け
てあり、出力ギヤー６に隣接した出力軸４の中間
部は２列の円錐ころ軸受１８及び概ね円筒状の軸
受箱１９を介してケースＡ、Ｂの垂直後壁A1，
B1に支持され、ケースＡ、Ｂから突出した出力
軸後端部にはプロペラ軸（図示せず）に連結する
ための継手フランジ２０が固定されている。２
１，２２は両軸受１８，１８の内輪２３，２３の
間及び外輪２４，２４の間に設けたカラー、２５
は第１図中右側の軸受内輪２３と継手フランジ２
０のボス筒端面との間に設けたカラーである。２
６は軸受箱１９の筒状部２７の後端部に締着され
た環状カバーで、内周面がシール２６′を介して
カラー２５の外周面に嵌合している。軸受箱１９
は筒状部２７の内周面が両方の軸受外輪２４と嵌
合しており、筒状部２７の外周面上の外向きフラ
ンジ２８が複数のボルト２９によりケースＡ、Ｂ
の垂直後壁A1，B1の外面に固定されている。又
筒状部２７のフランジ２８よりも前方（出力ギヤ
ー６側）の部分はケースＡ、Ｂの合せ面部分に形
成した孔３０に嵌合している。 As shown in Fig. 1, the lower case A and the middle case B have a boss 16 at the middle part in the front-rear direction (left-right direction in Fig. 1).
It is equipped with The bosses 16 of both cases A and B are joined to each other and extend in an annular shape, and the small diameter front end of the output shaft 4 is supported by the inner cylindrical surface of the boss 16 via a cylindrical roller bearing 17. The output gear 6 is provided adjacent to and behind the bearing 17 (to the right in FIG. 1), and the intermediate portion of the output shaft 4 adjacent to the output gear 6 is provided with two rows of tapered roller bearings 18 and a generally cylindrical shape. The vertical rear wall A 1 of cases A and B through the bearing box 19 of
A joint flange 20 for connecting to a propeller shaft (not shown) is fixed to the rear end of the output shaft supported by B1 and protruding from cases A and B. 2
1 and 22 are collars provided between the inner rings 23 and 23 and between the outer rings 24 and 24 of both bearings 18 and 18;
are the bearing inner ring 23 and the joint flange 2 on the right side in Figure 1.
This is a collar provided between the end surface of the boss cylinder and the end face of the boss cylinder. 2
Reference numeral 6 denotes an annular cover fastened to the rear end of the cylindrical portion 27 of the bearing box 19, and its inner circumferential surface fits into the outer circumferential surface of the collar 25 via a seal 26'. Bearing box 19
The inner peripheral surface of the cylindrical portion 27 is fitted with both bearing outer rings 24, and the outward flange 28 on the outer peripheral surface of the cylindrical portion 27 is connected to cases A and B by a plurality of bolts 29.
It is fixed to the outer surface of the vertical rear wall A 1 , B 1 . Further, a portion of the cylindrical portion 27 in front of the flange 28 (on the output gear 6 side) is fitted into a hole 30 formed in the mating surfaces of the cases A and B.
以上説明した本発明の構造によると、オイルパ
ンとなる下部ケースＡと軸受部の主要部となる中
間ケースＢとを別体品により形成し、据付足１５
（第２図）を中間ケースＢに設けているので、下
部ケースＡはその強度を特に高める必要はなく、
オイルパンとして要求される程度の比較的低い強
度を与えておけばよい。従つて下部ケースＡはそ
の肉厚を薄くすることができ、重量及びコストを
低減することができる。又中間ケースＢは一般に
入力軸３や出力軸４ならびに各ユニツトＦ、Ｇの
サポート軸１３，１２等の多数の軸を支持する関
係上、従来から肉厚を比較的大きくして充分な強
度が与えてある。従つて本発明のように中間ケー
スＢに据付足１５を設ける場合でも、従来品に比
べて中間ケースＢの肉厚を特に大きくする必要は
なく、従来と略同様のケースＢにより据付足１５
を確実に支持できる。このように本発明では下部
ケースＡを軽量化でき、中間ケースＢの大幅な重
量増も生じないので、減速逆転機全体を軽量化し
てコストを低減できる。 According to the structure of the present invention described above, the lower case A serving as the oil pan and the intermediate case B serving as the main part of the bearing part are formed as separate parts, and the installation foot 15
(Fig. 2) is provided in the middle case B, so there is no need to particularly increase the strength of the lower case A.
It is sufficient to provide a relatively low strength required for an oil pan. Therefore, the wall thickness of the lower case A can be reduced, and the weight and cost can be reduced. In addition, because the intermediate case B generally supports a large number of shafts such as the input shaft 3, the output shaft 4, and the support shafts 13 and 12 of each unit F and G, the wall thickness of the intermediate case B has traditionally been relatively large to ensure sufficient strength. It has been given. Therefore, even if the intermediate case B is provided with the installation feet 15 as in the present invention, there is no need to make the wall thickness of the intermediate case B particularly larger than that of the conventional product, and the installation feet 15 can be provided with the installation feet 15 using the case B that is substantially the same as the conventional case.
can definitely be supported. As described above, in the present invention, the weight of the lower case A can be reduced, and the weight of the intermediate case B does not increase significantly, so that the weight of the entire speed reduction/reversing gear can be reduced and costs can be reduced.
更に本願発明では下部ケースＡと中間ケースＢ
の分割面ａ−ａを出力軸中心Ｏよりも下方に位置
させているので、軸受箱１９は上部と中間部が中
間ケースＢに支持され、下部だけが下部ケースＡ
に支持される。従つて出力軸４からのスラストは
軸受１８や軸受箱１９を経てその大半が中間ケー
スＢに加わる。このように下部ケースＡに加わる
スラストの割合が低いので、この点に於てもケー
スＡの強度をさほど大きくする必要はなく、ケー
スＡの軽量化を図ることができる。 Furthermore, in the present invention, the lower case A and the middle case B
Since the dividing plane a-a is located below the output shaft center O, the upper and middle parts of the bearing box 19 are supported by the intermediate case B, and only the lower part is supported by the lower case A.
Supported by Therefore, most of the thrust from the output shaft 4 is applied to the intermediate case B via the bearing 18 and the bearing box 19. Since the proportion of thrust applied to the lower case A is thus low, there is no need to increase the strength of the case A so much in this respect, and the weight of the case A can be reduced.
第１図は実施例の垂直縦断面図、第２図は第１
図の一部切欠き−矢視図である。３…入力
軸、４…出力軸、１２，１３…サポート軸、１５
…据付足、Ａ…下部ケース、Ｂ…中間ケース、Ｃ
…上部ケース、Ｆ，Ｇ…変速ユニツト、Ｏ…出力
軸中心、ａ−ａ…分割面。
Fig. 1 is a vertical longitudinal sectional view of the embodiment, and Fig. 2 is a vertical cross-sectional view of the embodiment.
It is a partially cutaway-arrow view of the figure. 3...Input axis, 4...Output axis, 12, 13...Support axis, 15
...Installation feet, A...Lower case, B...Middle case, C
...Upper case, F, G...Transmission unit, O...Output shaft center, a-a...Dividing surface.
Claims (1)
ニツトを備えた減速逆転機において、減速逆転機
のケースを、下部ケースと中間ケースと上部ケー
スとの分割体で形成し、入力軸と変速ユニツトの
サポート軸との軸受部を中間ケースと上部ケース
だけに形成し、下部ケースによりオイルパンを形
成し、減速逆転機の据付足を中間ケースに一体に
設け、上記出力軸を中間ケースと下部ケースとの
分割面に沿つて配置し、上記分割面を出力軸の下
端よりも上側かつ出力軸の中心よりも下側に配置
したことを特徴とする減速逆転機のケース。1. In a reduction/reversing machine equipped with an input shaft, an output shaft, and a transmission unit that connects the above-mentioned two shafts, the case of the reduction/reversal machine is formed by a divided body of a lower case, an intermediate case, and an upper case, and the input shaft and the transmission The bearing part for the support shaft of the unit is formed only in the middle case and the upper case, the oil pan is formed by the lower case, the installation foot of the reduction/reversing gear is provided integrally with the middle case, and the output shaft is connected to the middle case and the lower part. A case for a speed reduction/reversing machine, characterized in that the case is arranged along a dividing plane between the case and the dividing plane, and the dividing plane is arranged above the lower end of the output shaft and below the center of the output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57103583A JPS58221064A (en) | 1982-06-15 | 1982-06-15 | Casing for speed reducing reverser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57103583A JPS58221064A (en) | 1982-06-15 | 1982-06-15 | Casing for speed reducing reverser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58221064A JPS58221064A (en) | 1983-12-22 |
| JPS626141B2 true JPS626141B2 (en) | 1987-02-09 |
Family
ID=14357795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57103583A Granted JPS58221064A (en) | 1982-06-15 | 1982-06-15 | Casing for speed reducing reverser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58221064A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5207121A (en) * | 1992-02-13 | 1993-05-04 | General Motors Corporation | Gear case for locomotive drive system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5453217U (en) * | 1977-09-22 | 1979-04-12 |
-
1982
- 1982-06-15 JP JP57103583A patent/JPS58221064A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58221064A (en) | 1983-12-22 |
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