JPH0631223Y2 - Shaft joint structure - Google Patents
Shaft joint structureInfo
- Publication number
- JPH0631223Y2 JPH0631223Y2 JP1989146194U JP14619489U JPH0631223Y2 JP H0631223 Y2 JPH0631223 Y2 JP H0631223Y2 JP 1989146194 U JP1989146194 U JP 1989146194U JP 14619489 U JP14619489 U JP 14619489U JP H0631223 Y2 JPH0631223 Y2 JP H0631223Y2
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- shaft
- shaft coupling
- belt
- gap
- 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
Landscapes
- Pulleys (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、トラクタ等の動力伝達装置における軸継手構
造に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a shaft coupling structure in a power transmission device such as a tractor.
（従来の技術） 第５図は、トラクタにおける従来の動力伝達装置を示
す。即ち、第５図において、１はエンジンで、トラクタ
車体２の前部に搭載されており、このエンジン１の前面
下部に前車軸受台３、バンパー４等が取付けられてい
る。５はエンジン１前部のギヤーケースである。６はバ
ッテリで、前車軸受台３上に支持ブラケット７を介して
装着されたバッテリ受台８上に載置されている。９はラ
ジエータで、ラジエータファン10を有し、前車軸受台３
上に取付けられている。11はエンジン１のクランク軸
（第１伝動軸）で、ギヤーケース５よりも前方に突出
し、その前端部にプーリー12が固定されている。このプ
ーリー12には、ラジエータファン10のプーリー13に動力
を伝達するようにＶベルト14が巻掛けられている。15は
油圧ポンプで、バッテリ受台８の下側で支持ブラケット
７に取付けられている。この油圧ポンプ15は、後方に突
出する入力軸（第２伝動軸）16を有し、その入力軸16は
両端にフランジ部等を有する軸継手17を介してクランク
軸11のプーリー12に連結されている。18はエンジン５等
をおおうボンネットである。19は前車軸で、前車軸受台
３にセンター軸20を介して支持され、この前車軸19の両
端に前輪21が取付けられている。(Prior Art) FIG. 5 shows a conventional power transmission device in a tractor. That is, in FIG. 5, reference numeral 1 denotes an engine, which is mounted on the front portion of the tractor body 2, and a front vehicle bearing stand 3, a bumper 4 and the like are attached to the lower front portion of the engine 1. 5 is a gear case at the front of the engine 1. Reference numeral 6 denotes a battery, which is mounted on a battery receiving stand 8 mounted on the front vehicle bearing stand 3 via a support bracket 7. 9 is a radiator, which has a radiator fan 10 and a front vehicle bearing stand 3
Installed on top. Reference numeral 11 denotes a crank shaft (first transmission shaft) of the engine 1, which projects forward from the gear case 5 and has a pulley 12 fixed to the front end thereof. A V-belt 14 is wound around the pulley 12 so as to transmit power to the pulley 13 of the radiator fan 10. A hydraulic pump 15 is attached to the support bracket 7 below the battery pedestal 8. The hydraulic pump 15 has an input shaft (second transmission shaft) 16 protruding rearward, and the input shaft 16 is connected to a pulley 12 of a crankshaft 11 via a shaft joint 17 having flanges or the like at both ends. ing. 18 is a hood that covers the engine 5 and the like. Reference numeral 19 denotes a front axle, which is supported by the front axle bearing stand 3 via a center shaft 20, and front wheels 21 are attached to both ends of the front axle 19.
（考案が解決しようとする課題） 上記のようにトラクタでは、エンジン１のクランク軸11
により、プーリー12、ベルト14、プーリー13を介してラ
ジエータファン10を駆動する他、油圧ポンプ15等の補器
類、或いは前部ＰＴＯ装置を駆動する構成を採るものが
多くなっている。しかし、従来のこの種の動力伝達装置
では、Ｖベルト14の脱着が問題となっている。即ち、Ｖ
ベルト14が損傷した場合には、プーリー12からＶベルト
14を取外して交換する必要があるが、そのためには軸継
手17の両端のボルト等を抜いて、軸継手17をプーリー12
と油圧ポンプ15の入力軸16との間から完全に取外さなけ
れば、Ｖベルト14を交換することができなかった。従っ
て、従来はＶベルト14の交換が非常に煩わしくなる欠点
があった。(Problems to be Solved by the Invention) As described above, in the tractor, the crankshaft 11 of the engine 1
Thus, in addition to driving the radiator fan 10 via the pulley 12, the belt 14 and the pulley 13, auxiliary equipment such as the hydraulic pump 15 or the front PTO device is often used. However, in the conventional power transmission device of this type, the attachment and detachment of the V-belt 14 is a problem. That is, V
If belt 14 is damaged, pulley 12 to V belt
It is necessary to remove 14 and replace it.To do this, remove the bolts etc. at both ends of the shaft coupling 17 and replace the shaft coupling 17 with the pulley 12
The V-belt 14 could not be replaced unless it was completely removed from between the hydraulic pump 15 and the input shaft 16 of the hydraulic pump 15. Therefore, conventionally, there is a drawback that replacement of the V-belt 14 becomes very troublesome.
本考案は、このような従来の課題に鑑み、ボルトによる
結合を解除する程で、継手を完全に取外さなくてもベル
トを容易に交換できる軸継手構造を提供するものであ
る。In view of such conventional problems, the present invention provides a shaft joint structure in which the belt can be easily exchanged without completely removing the joint to such an extent that the connection by the bolt is released.
（課題を解決するための手段） 本考案は、第１伝動軸11の端部にベルト14が巻掛けられ
たプーリー12を固定すると共に、このプーリー12に軸継
手23を介して第２伝動軸16を連結した動力伝達装置にお
いて、プーリー12と軸継手23との対向端面に、互いに相
手側に突出しかつ軸心廻りに相対回動させた時に両者間
にベルト通過用の隙間25ができるように周方向に複数個
の突出部22,24を形成し、この両突出部22,24を当接させ
て軸継手23をプーリー12に着脱自在に取付けたものであ
る。(Means for Solving the Problem) According to the present invention, a pulley 12 having a belt 14 wound around an end portion of a first transmission shaft 11 is fixed, and a second transmission shaft is mounted on the pulley 12 via a shaft coupling 23. In the power transmission device in which 16 are connected, on the opposing end faces of the pulley 12 and the shaft coupling 23, a belt passing gap 25 is formed between the pulley 12 and the shaft coupling 23 when they project toward each other and relatively rotate about the axis. A plurality of protrusions 22 and 24 are formed in the circumferential direction, the protrusions 22 and 24 are brought into contact with each other, and the shaft coupling 23 is detachably attached to the pulley 12.
（作用） プーリー12からベルト14を外す場合には、先ずプーリー
12と軸継手23との結合を解く。次にプーリー12又は軸継
手23を他方に対して軸心廻りに相対回動させ、両者の突
出部22,24間に隙間25をつくり、プーリー12から外した
ベルト14を隙間25を経て抜いて行く。このようにすれ
ば、プーリー12と軸継手23との結合を解除することによ
り、極く簡単にベルト14を抜くことができる。(Operation) When removing the belt 14 from the pulley 12, first, the pulley
Release the connection between 12 and shaft coupling 23. Next, the pulley 12 or the shaft coupling 23 is relatively rotated about the axis with respect to the other, a gap 25 is formed between the protruding portions 22 and 24 of both, and the belt 14 removed from the pulley 12 is pulled out through the gap 25. go. In this way, the belt 14 can be pulled out very easily by releasing the connection between the pulley 12 and the shaft coupling 23.
（実施例） 以下、図示の実施例について本考案を詳述する。なお、
第５図における場合と同一名称の部材には、同一の符号
を付し、その説明を省略する。第１図に示すように、エ
ンジンのクランク軸（第１伝動軸）11に固定のプーリー
12には、軸心方向の前方に突出する突出部22が周方向に
複数個形成されている。一方、このプーリー12に対向し
て第１軸継手23が配置されており、この第１軸継手23に
は、軸心方向の後方に突出する突出部24が、プーリー12
側の突出部22と対応して同数だけ一体に形成されてい
る。これら突出部22,24は、軸心廻りに相対回動させた
時に、第２図に示す如く、突出部22,24相互間にベルト1
4通過用の隙間25ができるように周方向に適宜間隔で配
置されている。そして、第１軸継手23は、突出部22,24
同志を前後に当接させた状態で、第１軸継手23に前方側
から挿入されたボルト26により着脱自在に締結合されて
いる。油圧ポンプ15の入力軸（第２伝動軸）16には、第
２軸継手27が後端側に固定されている。第２軸継手27は
フランジ部28の前後両側にボス部29と突出部30とを有
し、そのボス部29に油圧ポンプ15の入力軸16が連結され
ている。突出部30は周方向に複数個あり、第２軸継手27
は、この突出部30を第１軸継手23の前端面に当接させた
状態で、前方側から挿入されたボルト31により第１軸継
手23に着脱自在に結合されている。なお、第２軸継手27
のフランジ部28には、ボルト26を挿抜できるように、ボ
ルト26に対応する部分に切欠部が設けられている。(Embodiment) Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In addition,
Members having the same names as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 1, a pulley fixed to the crankshaft (first transmission shaft) 11 of the engine.
A plurality of projecting portions 22 projecting forward in the axial direction are formed in the circumferential direction 12 of the shaft 12. On the other hand, a first shaft coupling 23 is arranged so as to face the pulley 12, and the first shaft coupling 23 has a protrusion 24 protruding rearward in the axial direction.
Corresponding to the side protrusions 22, the same number is integrally formed. When the protrusions 22 and 24 are rotated relative to each other about the axis, as shown in FIG.
It is arranged at appropriate intervals in the circumferential direction so that a gap 25 for four passages is formed. Then, the first shaft coupling 23 has the protrusions 22, 24.
In a state in which the two are brought into contact with each other in the front-rear direction, the first shaft coupling 23 is detachably fastened by a bolt 26 inserted from the front side. A second shaft coupling 27 is fixed to the input shaft (second transmission shaft) 16 of the hydraulic pump 15 at the rear end side. The second shaft coupling 27 has a boss portion 29 and a projecting portion 30 on both front and rear sides of the flange portion 28, and the input shaft 16 of the hydraulic pump 15 is connected to the boss portion 29. There are a plurality of protrusions 30 in the circumferential direction, and the second shaft coupling 27
Is detachably coupled to the first shaft joint 23 by a bolt 31 inserted from the front side in a state where the protrusion 30 is brought into contact with the front end surface of the first shaft joint 23. The second shaft coupling 27
The flange portion 28 is provided with a notch at a portion corresponding to the bolt 26 so that the bolt 26 can be inserted and removed.
上記構成の動力伝達装置において、エンジンを運転すれ
ば、そのクランク軸11からの動力によりラジエータファ
ンを駆動し、また油圧ポンプ15を駆動することができ
る。In the power transmission device having the above configuration, when the engine is operated, the radiator fan can be driven by the power from the crankshaft 11 and the hydraulic pump 15 can be driven.
Ｖベルト14が損傷して交換する倍には、ボルト26を緩め
て抜き取り、第１軸継手23とプーリー12との結合を解除
する。するとプーリー12の突出部22と第１軸継手23の突
出部24とが単なる当接状態にあるので、次に油圧ポンプ
15の入力軸16廻りに第１軸継手23側を所定角度だけ第２
図のａ矢示方向に回転させる。これによってプーリー12
の突出部22と第１軸継手23の突出部24とが周方向に位置
ずれし、両突出部22,24間に隙間25ができるので、プー
リー12から外したＶベルト14をその隙間25を順次ジグザ
グ状に通過させて行けば、第１軸継手23を軸心方向に動
かしたり、或いは第２軸継手27から分離して完全に取外
したりすることなく、容易にＶベルト14を抜き取ること
ができる。When the V-belt 14 is damaged and needs to be replaced, the bolt 26 is loosened and pulled out, and the connection between the first shaft coupling 23 and the pulley 12 is released. Then, the protrusion 22 of the pulley 12 and the protrusion 24 of the first shaft coupling 23 are simply in contact with each other.
Around the input shaft 16 of 15 and the second side of the first shaft coupling 23 side by a predetermined angle
Rotate in the direction of arrow a in the figure. This makes the pulley 12
Since the protruding portion 22 and the protruding portion 24 of the first shaft coupling 23 are displaced in the circumferential direction, and a gap 25 is formed between the both protruding portions 22 and 24, the V belt 14 removed from the pulley 12 is inserted into the gap 25. If they are successively passed in a zigzag shape, the V-belt 14 can be easily pulled out without moving the first shaft coupling 23 in the axial direction or completely separating it from the second shaft coupling 27. it can.
別な新たなＶベルト14をプーリー12に巻掛ける場合にも
同様に行えば良い。The same operation may be performed when winding another new V-belt 14 around the pulley 12.
なお、実施例では、第１軸継手23と第２軸継手27とを別
体に構成しているが、両者を一体にしても良い。In addition, in the embodiment, the first shaft coupling 23 and the second shaft coupling 27 are configured separately, but they may be integrated.
また、第１図の構造では、ボルト26を介して動力を伝達
することになり、伝達トルクに耐え得るだけのボルト26
を使用する必要がある。そこで、回転方向が一方向（ｂ
矢示）に定まっている場合には、第３図に示す如く、各
突出部22,24の先端に互いに係合して動力を伝達するよ
うに段部22a,24aを形成すれば、ボルト26の負担を軽減
できる。この場合、ベルト14の交換時には、第４図に示
す如く、第１軸継手23をｂ矢示方向に廻せば、所定の隙
間25を確保できる。Further, in the structure of FIG. 1, the power is transmitted through the bolts 26, and the bolts 26 that can withstand the transmission torque.
Need to use. Therefore, the rotation direction is one direction (b
(Shown by the arrow), as shown in FIG. 3, if the stepped portions 22a and 24a are formed so as to engage with the tips of the protruding portions 22 and 24 to transmit power, the bolt 26 Can reduce the burden of. In this case, when the belt 14 is replaced, as shown in FIG. 4, the predetermined gap 25 can be secured by turning the first shaft coupling 23 in the direction of the arrow b.
更に実施例では、トラクタにおけるラジエータファン及
び油圧ポンプ15の駆動部を例示しているが、これに限定
されず、動力伝達装置の全般について広く利用できるこ
とは云うまでもない。Furthermore, in the embodiment, the radiator fan in the tractor and the drive unit of the hydraulic pump 15 are illustrated, but it is needless to say that the present invention is not limited to this and can be widely used for all power transmission devices.
（考案の効果） 本考案によれば、プーリー12と軸継手23との対向端面
に、互いに相手側に突出しかつ軸心廻りに相対回動させ
た時に両者間にベルト通過用の隙間25ができるように周
方向に複数個の突出部22,24を形成し、この両突出部22,
24を当接させて軸継手23をプーリー12に着脱自在に取付
けているので、単にプーリー12と軸継手23との結合を解
除する程度の極く簡単な操作で容易にベルト14を抜き取
ることができ、従来に比較して作業が非常に容易であ
る。(Effect of the Invention) According to the present invention, a gap 25 for passing the belt is formed between the pulley 12 and the shaft coupling 23 at the opposing end surfaces when they protrude toward each other and are relatively rotated about the axis. Thus, a plurality of protrusions 22, 24 are formed in the circumferential direction, and both protrusions 22, 24 are formed.
Since the shaft coupling 23 is removably attached to the pulley 12 by abutting against the belt 24, the belt 14 can be easily pulled out by a very simple operation such as simply releasing the coupling between the pulley 12 and the shaft coupling 23. It is possible and the work is very easy compared with the conventional one.
第１図は本考案の一実施例を示す要部の断面側面図、第
２図はその動作説明図、第３図は本考案の別の実施例を
示す要部の側面図、第４図はその動作説明図、第５図は
従来例を示す断面側面図である。 11…クランク軸（第１伝動軸）、12…プーリー、14…Ｖ
ベルト、15…油圧ポンプ、16…入力軸（第２伝動軸）、
22,24…突出部、23…第１軸継手、25…隙間。FIG. 1 is a sectional side view of an essential part showing an embodiment of the present invention, FIG. 2 is an operation explanatory view thereof, FIG. 3 is a side view of an essential part showing another embodiment of the present invention, and FIG. Is an operation explanatory view thereof, and FIG. 5 is a sectional side view showing a conventional example. 11 ... Crank shaft (first transmission shaft), 12 ... Pulley, 14 ... V
Belt, 15 ... hydraulic pump, 16 ... input shaft (second transmission shaft),
22, 24 ... Projection, 23 ... First shaft coupling, 25 ... Gap.
Claims (1)
けられたプーリー(12)を固定すると共に、このプーリー
(12)に軸継手(23)を介して第２伝動軸(16)を連結した動
力伝達装置において、プーリー(12)と軸継手(23)との対
向端面に、互いに相手側に突出しかつ軸心廻りに相対回
動させた時に両者間にベルト通過用の隙間(25)ができる
ように周方向に複数個の突出部(22)(24)を形成し、この
両突出部(22)(24)を当接させて軸継手(23)をプーリー(1
2)に着脱自在に取付けたことを特徴とする軸継手構造。1. A pulley (12) having a belt (14) wound around the end of a first transmission shaft (11) is fixed and the pulley (12) is
In a power transmission device in which a second transmission shaft (16) is connected to a shaft (12) via a shaft joint (23), the pulley (12) and the shaft joint (23) have opposing end surfaces which project toward each other and which are connected to each other. A plurality of protrusions (22) (24) are formed in the circumferential direction so that a gap (25) for passing the belt can be formed between the two when they are relatively rotated about the center. 24) butts the shaft coupling (23) to the pulley (1
Shaft coupling structure characterized by being detachably attached to 2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989146194U JPH0631223Y2 (en) | 1989-12-18 | 1989-12-18 | Shaft joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989146194U JPH0631223Y2 (en) | 1989-12-18 | 1989-12-18 | Shaft joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0384421U JPH0384421U (en) | 1991-08-27 |
| JPH0631223Y2 true JPH0631223Y2 (en) | 1994-08-22 |
Family
ID=31692794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989146194U Expired - Lifetime JPH0631223Y2 (en) | 1989-12-18 | 1989-12-18 | Shaft joint structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631223Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM290006U (en) * | 2005-09-13 | 2006-05-01 | Tung Tai Chuan Co Ltd | Chair structure with clothes hanging device |
-
1989
- 1989-12-18 JP JP1989146194U patent/JPH0631223Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0384421U (en) | 1991-08-27 |
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