JPS6231709Y2 - - Google Patents
Info
- Publication number
- JPS6231709Y2 JPS6231709Y2 JP9812679U JP9812679U JPS6231709Y2 JP S6231709 Y2 JPS6231709 Y2 JP S6231709Y2 JP 9812679 U JP9812679 U JP 9812679U JP 9812679 U JP9812679 U JP 9812679U JP S6231709 Y2 JPS6231709 Y2 JP S6231709Y2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- intermediate shaft
- belt
- shaft
- opening
- 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 33
- 238000012423 maintenance Methods 0.000 description 10
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (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、二段ベルト動力伝達部を小型に構成
しかつ安定な動力伝達を行うと同時に保守作業を
簡易化するための改良を施した動力伝達装置の筐
体に関する。[Detailed description of the invention] [Field of industrial application] The present invention has been improved to make the two-stage belt power transmission section compact and to transmit stable power while simplifying maintenance work. The present invention relates to a casing of a power transmission device.
従来、この種のベルト動力伝達装置では、第一
段の初段ベルトと第二段の次段ベルトの張力が異
るとともに、各ベルトの伸び率も相違しているた
め、ベルト張力の自動調整を目的として中間回転
軸を支承する支持枠自体を固定せず、バネなどに
よる柔軟な支持機構によつてベルトに加わる衝撃
的な振動を吸収させる構造が採用されてきてい
る。
Conventionally, in this type of belt power transmission device, the tension of the first stage belt of the first stage and the next stage belt of the second stage are different, and the elongation rate of each belt is also different, so automatic adjustment of belt tension is not possible. For this purpose, a structure has been adopted in which the support frame itself that supports the intermediate rotating shaft is not fixed, but a flexible support mechanism such as a spring is used to absorb the impact vibrations applied to the belt.
その一例として、特開昭52−6867号公報に開示
する様なベルト減速機を二段組合せた伝達装置が
既に公知である。この従来例では、中間回転軸を
支える支持枠がケース壁面に円周方向に摺動可能
にピボツト支持された柔軟支持機構が示されてい
る。 As an example, a transmission device in which a two-stage belt reduction gear is combined is already known, as disclosed in Japanese Patent Application Laid-Open No. 52-6867. This conventional example shows a flexible support mechanism in which a support frame supporting an intermediate rotating shaft is pivotally supported on a case wall surface so as to be slidable in the circumferential direction.
すなわち、この柔軟支持機構は同号公報が示す
通り、上下二段の伝達部の各ベルトの伸びの相違
を自動調芯によつて補償する目的で、中間回転軸
の支持を常時柔軟な構造とするために、支持枠と
一体に突出させた支持腕をケース壁面にて片持支
持した構造としている。 In other words, as shown in the same publication, this flexible support mechanism uses a constantly flexible structure to support the intermediate rotating shaft in order to compensate for the difference in elongation of each belt of the upper and lower transmission sections through self-alignment. In order to achieve this, a structure is adopted in which the support arm, which projects integrally with the support frame, is cantilevered on the wall surface of the case.
また更に入出力軸および中間軸の各軸端部分は
いずれも自由端として構成し、ベルト交換の便宜
を配慮している。 Furthermore, each shaft end portion of the input/output shaft and the intermediate shaft is configured as a free end to facilitate belt replacement.
〔従来技術の問題点〕
しかし乍ら、斯かる従来の伝達装置では、
(i) 上下段の各ベルトの伸びに対する安定伝達を
確保すること，と同時に、
(ii) ベルト交換などの保守作業が容易かつ迅速に
行えること，
の二つの条件はいつも同時に満たされている必要
があるにも拘わらず、現実にはこの要件が未解決
のままであつた。[Problems with the prior art] However, with such a conventional transmission device, it is difficult to (i) ensure stable transmission against the elongation of each belt in the upper and lower stages, and (ii) require maintenance work such as belt replacement. Although the two conditions of being easy and quick to perform must always be met at the same time, in reality these requirements have remained unresolved.
すなわち、(i)について考えてみると、ベルトが
伸びたとき柔軟片持支持の構造では中間軸がベル
トの伸びに応じて変位するので原理的には理想的
な自動調芯の機能を持つはずであるが、実際上は
このように理想的には作動しない欠点がある。 In other words, considering (i), when the belt is stretched, in a flexible cantilever support structure, the intermediate shaft will be displaced according to the stretch of the belt, so in principle it should have an ideal self-aligning function. However, in practice, there is a drawback that it does not work as ideally as described above.
例えば出力軸に送風フアンなどの慣性モーメン
トの大きい負荷が取付けられているときは、起動
時に電動機側からの衝撃的な起動トルクが上下段
の各ベルトに瞬間的に加わるため支持腕が室内に
て大きく揺動し、ベルトがプーリより脱落し、伝
達不可に陥いる。ベルトが外れないときは状況は
さらに悪化し、ピボツト部の金属摩耗が促進され
これに伴いプーリが揺動しやすくなり、ついには
中間軸の支持体より突出する支持腕が折れたり、
ピボツト部が破壊したり、またベルトに加わる瞬
間的な過大張力のため短期にベルト切断事故が多
発する。またベルト切断事故に際しても、従来の
伝達装置では著しく煩雑な作業が要求された。 For example, when a load with a large moment of inertia, such as a blower fan, is attached to the output shaft, an impactful starting torque from the electric motor side is instantaneously applied to each belt in the upper and lower stages at startup, so the support arm cannot be moved indoors. It oscillates a lot, the belt falls off the pulley, and transmission becomes impossible. If the belt does not come off, the situation worsens, accelerating metal wear at the pivot part, causing the pulley to swing easily, and eventually the support arm protruding from the support of the intermediate shaft to break.
Belt breakage accidents occur frequently in a short period of time due to pivot parts breaking or instantaneous excessive tension being applied to the belt. Furthermore, even in the event of a belt breakage accident, extremely complicated work is required with conventional transmission devices.
すなわち、上述(ii)のベルト保守作業について
は、従来例では支持枠の柔軟かつ片持ピボツト支
持構造が筐体の側壁に集中的に配置されている。
このため保守作業用の開口部は筐体の長手方向
（入出力軸と中間軸との間）のケース側壁に設置
せざるを得ない。しかも中間軸支持枠の組立体全
体をこの開口部から取外し可能な大きさとするに
は、入出力軸と中間軸との軸間距離を大きくしな
ければならず、筐体が不本意に大きくなり小型化
することは困難で、しかも製造上からみても経済
的でないとの欠点がある。このため支持枠の組立
体は最初の段階で入出力軸の取り付け用フランジ
より予じめ装着している。それにより保守用開口
部は側壁部に小さな窓状に設けているのが原因で
保守作業は非能率でかつ煩雑であつた。 That is, regarding the above-mentioned belt maintenance work (ii), in the conventional example, the flexible and cantilevered pivot support structure of the support frame is centrally arranged on the side wall of the casing.
For this reason, an opening for maintenance work must be installed on the side wall of the case in the longitudinal direction of the case (between the input/output shaft and the intermediate shaft). Moreover, in order to make the entire assembly of the intermediate shaft support frame large enough to be removed from this opening, the distance between the input/output shaft and the intermediate shaft must be increased, making the casing undesirably large. The drawback is that it is difficult to miniaturize, and it is also uneconomical from a manufacturing standpoint. For this reason, the support frame assembly is installed in advance from the input/output shaft mounting flange at the initial stage. As a result, maintenance work is inefficient and complicated because the maintenance opening is provided in the form of a small window in the side wall.
本考案は、このような二段式の動力伝達装置の
問題を解消するためになされたもので、中間軸の
支持構造を改める際に筐体構造自体に改良を加え
ることによつて、動力の安定伝達並びに保守の簡
易化に寄与する動力伝達装置の筐体を提供するこ
とを目的としている。
The present invention was developed to solve the problem of such a two-stage power transmission device, and by improving the casing structure itself when changing the support structure of the intermediate shaft, it is possible to increase the power output. The object of the present invention is to provide a housing for a power transmission device that contributes to stable transmission and easy maintenance.
この考案では、上述した(i)の安定伝達を確保す
るために中間軸を支承する固定保持体の支持方式
を改め、新たな構造の伝達装置の筐体を改造した
ものである。しかも改造にからめて中間軸全体を
一体組立物として着脱し得るように構成したもの
である。
In this invention, in order to ensure the stable transmission described in (i) above, the support method of the fixed holding body that supports the intermediate shaft is changed, and the housing of the transmission device with a new structure is modified. Moreover, for modification, the entire intermediate shaft can be attached and detached as an integral assembly.
すなわち、上記中間軸を支承する固定保持体を
自由端の上下にプーリを施した上記中間軸と一体
組立体の状態で上記筐体から出し入れ可能にする
ため上方の上記プーリの周囲に設けた開口部並び
にこの開口部の下方に位置し枠底部および枠側部
からなる突出部を形成した枠体と、上記開口部を
閉止する蓋体とから成るとともに、常時は上記一
体組立体の上記固定保持体を螺子固着しまたベル
トの交換または調整時に該螺子の締付解放により
上記入出力軸の方向に摺動可能とするための平面
台部が上記突出部内の上記枠底部または枠側部よ
り上記開口部に向つて配置した立脚柱に形成され
ている構造としたものである。 That is, an opening is provided around the upper pulley in order to enable the fixed holding body supporting the intermediate shaft to be taken in and out of the housing in an integral assembly with the intermediate shaft having pulleys provided above and below the free end. , a frame body located below the opening and forming a protrusion consisting of a frame bottom and a frame side, and a lid body that closes the opening, and which normally holds the integral assembly fixedly. A flat platform part for fixing the body with screws and making it possible to slide in the direction of the input/output shaft by tightening and releasing the screws when replacing or adjusting the belt is attached from the bottom of the frame or the side part of the frame in the protruding part. It has a structure in which it is formed on a pedestal pillar placed toward the opening.
プーリを施した中間軸の固定支持体が一体組立
体として、常時は筐体内で固着され、ベルト交換
或いは張力調整などの作業時にのみ螺子の締付を
解放するだけで入出力軸の方向に摺動できる構造
であることから、通常の運転時は起動時或いは停
止時に中間軸並びにベルトが不用意な揺動を生じ
ないので、ベルトの脱落、ベルト切断事故、ピボ
ツト構造部の破損が生ずることはなく、長期に沿
り安定した動力伝達が確保できる。また従来のよ
うに筐体にピボツト構造が存在せず、中間軸の周
囲の筐体に空間的な余裕が生じるので下方の突出
部と上方の大きな開口部とによつて一体組立体全
体を突出部に支持させ、開口部から装着したり、
或いは取り外しが自在な筐体構造を採用できるた
め、保守作業を迅速、簡略化できる。
The fixed support of the intermediate shaft with a pulley is fixed inside the housing as an integral assembly at all times, and can be slid in the direction of the input/output shaft by simply loosening the screw when replacing the belt or adjusting the tension. Since the intermediate shaft and belt do not swing unexpectedly during normal operation when starting or stopping, there is no chance of the belt falling off, belt breakage, or damage to the pivot structure. Therefore, stable power transmission can be ensured over a long period of time. In addition, unlike conventional cases, the casing does not have a pivot structure, and there is ample space in the casing around the intermediate shaft, so the entire integrated assembly can be protruded by the lower protrusion and the larger upper opening. It can be supported through the opening and installed through the opening.
Alternatively, since a removable housing structure can be adopted, maintenance work can be done quickly and easily.
第１図は、本考案の一実施例動力伝達装置の筐
体を適用した伝達装置全体の縦断面図を示してい
る。図中１は、筐体であつて、箱型枠体２と蓋体
３からなつている。箱型枠体２は、平面部２ａ
と、一部に開口部５を有する楕円型枠側部２ｂ
と、枠底部２ｃとをそれぞれ鉄鋳物で一体に形成
し、また蓋体３はアルミニウム鋳物成型すること
により構成している。平面部２ａには入力開孔７
が、また枠底部２ｃには出力開孔８が明けられ、
それぞれフランジ９および１０を介して入力軸１
１および出力軸１２が導入されている。電動機な
どの動力源（図示せず）に連結した入力軸１１に
プーリ１３が、また送風フアンなどの負荷（図示
せず）に連結した出力軸１２にプーリ１４がそれ
ぞれ装着されている。１５および１６はそれぞれ
第一段および第二段ベルトである。２０は中間回
転軸であつて、その上端および下端にはそれぞれ
プーリ１７および１８が装着され、その中央部を
固定支持体１９によつて回転可能に支承されてい
る。固定支持体１９にはさらに左右に翼型支持腕
２１ａ，２１ｂが、またその後部に調整腕２２が
それぞれ同一平面上で一体に突出している。支持
腕２１ａ，２１ｂには、それぞれ楕円長穴２９
ａ，２９ｂがあけられ、また調整腕２２にも長穴
２９ｃがそれぞれあけられており、調整腕２２の
後方から巻上ボルト３０が取り付けてある。
FIG. 1 shows a longitudinal cross-sectional view of the entire transmission device to which a power transmission device casing according to an embodiment of the present invention is applied. Reference numeral 1 in the figure denotes a housing, which is composed of a box-shaped frame body 2 and a lid body 3. The box-shaped frame body 2 has a flat part 2a
and an elliptical formwork side part 2b having an opening 5 in a part.
and the frame bottom 2c are integrally formed of cast iron, and the lid 3 is formed of aluminum casting. An input hole 7 is provided in the flat part 2a.
However, an output hole 8 is also formed in the frame bottom 2c,
Input shaft 1 via flanges 9 and 10 respectively
1 and an output shaft 12 are introduced. A pulley 13 is attached to an input shaft 11 connected to a power source (not shown) such as an electric motor, and a pulley 14 is attached to an output shaft 12 connected to a load (not shown) such as a blower fan. 15 and 16 are first stage and second stage belts, respectively. Reference numeral 20 denotes an intermediate rotating shaft, and pulleys 17 and 18 are attached to its upper and lower ends, respectively, and its central portion is rotatably supported by a fixed support 19. The fixed support body 19 further has airfoil-shaped support arms 21a and 21b on the left and right sides, and an adjustment arm 22 on the rear thereof, which protrude integrally on the same plane. The support arms 21a and 21b each have an oval elongated hole 29.
a and 29b are drilled, and elongated holes 29c are also drilled in the adjusting arm 22, respectively, and a hoisting bolt 30 is attached from the rear of the adjusting arm 22.
一方第２図は、第１図のＸ−Ｘ線での断面図を
蓋体３を除いた状態で図示している。この状態す
なわち筐体１から蓋体３を外すと、箱型枠体２の
下方では枠底部２ｃが突き出しており舌状突出部
を形成している。この突き出した舌状突出部の外
周には蓋体３を据え付けるために開口部の蓋設置
平面部３２が枠底部２ｃから立ち上る枠側部２ｂ
の上方に備えてある。さらにその枠側部２ｂの内
部には三本の立脚柱２５ａ，２５ｂおよび３５が
枠側部２ｂもしくは枠底部２ｃから突出し、蓋設
置平面部３２と同一か或るいは多少高い長さで直
立している。さらに各立脚柱２５ａ，２５ｂおよ
び３５の先端にはそれぞれ平面台部２６ａ，２６
ｂおよび３６が形成され、これ等の各平面は同一
の高さとなるように加工されているとともに、各
平面部にはそれぞれスタツトボルト２７ａ，２７
ｂおよび３７が植立している。なお、本実施例で
は蓋設置平面部３２より立脚柱平面台部２６ａ，
２６ｂおよび３６の方が高さｌだけ高く構成され
ているが、これは巻上ボルト３０を操作しやすく
したもので、両者を同一平面にした場合には一度
のマシニングで切削できるので有利である。 On the other hand, FIG. 2 shows a cross-sectional view taken along the line X--X in FIG. 1 with the lid 3 removed. In this state, when the lid 3 is removed from the housing 1, the frame bottom 2c protrudes below the box-shaped frame 2, forming a tongue-like protrusion. On the outer periphery of this protruding tongue-like protrusion, a lid installation plane part 32 of an opening is formed on the frame side part 2b rising from the frame bottom part 2c in order to install the lid body 3.
It is provided above. Further, inside the frame side part 2b, three standing pillars 25a, 25b, and 35 protrude from the frame side part 2b or the frame bottom part 2c, and stand upright at a length that is the same as or slightly higher than the lid installation plane part 32. ing. Further, at the tips of each of the standing pillars 25a, 25b and 35, there are flat platform parts 26a, 26, respectively.
b and 36 are formed, and these planes are machined so that they have the same height, and stud bolts 27a and 27 are respectively provided on each plane part.
b and 37 are planted. In addition, in this embodiment, the erected pillar flat base part 26a,
26b and 36 are constructed higher by a height l, but this is to make it easier to operate the hoisting bolt 30, and if both are on the same plane, it is advantageous because it can be cut with one machining. .
第３図は、二つのプーリ１７および１８を装着
した中間軸２０を支承する固定保持体１９を箱型
枠２の内部に突出した三つの立脚柱２５ａ，２５
ｂおよび３５の各平面部２６ａ，２６ｂおよび３
６に設置する様子を示した動力伝達装置内部の分
解概要図である。同図より明らかな通り、スタツ
ドボルト２７ａ，２７ｂおよび３７をナツトによ
りロツクする前に第１図に示した巻上ボルト３０
によつて入力軸１１、出力軸１２と中間軸２０と
の軸間距離を調整しベルト１５および１６に最適
張力を与える。この際に固定支持体１９は、第１
図に示すスタツドボルト３７を中心に固定支持体
１９が枢支されているので、巻上げに伴つて移動
し、その結果中間回転軸２０の軸芯位置は自動調
芯が行われる。この巻上ボルト３０の操作により
調芯が終了した後は、第２図に示したように三箇
所のナツトを止め殺すことによつて、中間回転軸
２０は強固に固着される。この状態では中間回転
軸２０が不用意な振動を生じないので、プーリ１
７，１８はいずれも安定した平面度を維持しなが
ら回動しベルト１５および１６に対して変則的な
力が作用することもなく動力伝達は円滑に行われ
る。 FIG. 3 shows three erected columns 25a and 25 in which a fixed holding body 19 for supporting an intermediate shaft 20 on which two pulleys 17 and 18 are mounted is protruded into the box frame 2.
b and 35, each plane portion 26a, 26b and 3
FIG. 6 is an exploded schematic diagram of the inside of the power transmission device, showing how it is installed in FIG. As is clear from the same figure, before locking the stud bolts 27a, 27b and 37 with the nuts, the hoisting bolt 30 shown in FIG.
The distance between the input shaft 11, the output shaft 12, and the intermediate shaft 20 is adjusted by adjusting the distance between the input shaft 11, the output shaft 12, and the intermediate shaft 20 to give optimum tension to the belts 15 and 16. At this time, the fixed support 19
Since the fixed support 19 is pivotally supported around the stud bolt 37 shown in the figure, it moves as the winding occurs, and as a result, the axial center position of the intermediate rotating shaft 20 is automatically aligned. After alignment is completed by operating the hoisting bolt 30, the intermediate rotating shaft 20 is firmly fixed by tightening the nuts at three locations as shown in FIG. In this state, the intermediate rotating shaft 20 does not cause any unnecessary vibration, so the pulley 1
Both belts 7 and 18 rotate while maintaining stable flatness, and power transmission is performed smoothly without any irregular force acting on the belts 15 and 16.
特に従来のこの種の伝達装置では、中間軸片持
構造部分の金属摺動面が大きな力をうけながら常
時振動するため金属摩耗が短期に発生し、この摺
動部の摩耗が更に支持枠全体を大きく揺動させる
結果、中間軸プーリの揺動に伴い走行中のベルト
に瞬間的なネジレを与る。このため動力伝達が著
しく不安定となるだけでなく、ベルト自体に加わ
る変則的な内部応力によつてベルトが短期に疲労
する欠点があつたが、これ等の欠点は完全に解消
する。 In particular, in conventional transmission devices of this kind, the metal sliding surface of the intermediate shaft cantilevered structure constantly vibrates while being subjected to a large force, which causes metal wear in a short period of time, and this wear on the sliding part further spreads over the entire support frame. As a result of the large swing of the intermediate shaft pulley, the running belt is momentarily twisted due to the swing of the intermediate shaft pulley. This not only makes power transmission extremely unstable, but also causes short-term fatigue of the belt due to irregular internal stress applied to the belt itself, but these drawbacks are completely eliminated.
ベルト交換或いはベルト張力の不均衡の調整等
の保守に際しては、上述と同様に三箇所のナツト
を緩めるのみで、外す必要はなく巻上ボルト３０
を解放することによつて行えばよい。 When performing maintenance such as replacing the belt or adjusting imbalance in belt tension, just loosen the three nuts in the same way as above, there is no need to remove the hoisting bolt 30.
This can be done by releasing .
さらに、第４図は、箱型枠体２の斜視図を示し
ている。図示したように箱型枠体２は、その下方
の舌状突出部２ｅを舌状に突出した形状に構成さ
れ、また上半部２ｆは楕円の一部すなわちほぼ半
分を切欠された型状をなした開口部５を設けてい
る。この切欠された部分である開口部５の下方に
位置し半楕円状に突き出した舌状突出部２ｃの内
部においては、枠底部２ｃならびに枠側部２ｂか
ら直立している三つの立脚柱２５ａ，２５ｂおよ
び３５が露出している。また、入力開孔７と出力
開孔８との間の枠側部２ｂ並びに上半部２ｆは、
入力軸１１と一体とされている誘導電動機（図示
せず）の加重を保持するため筒状に成形されてい
る。このような形状の箱型枠体２にあつては、上
下段の各ベルト１５，１６からプーリ１７，１８
を経て加わる加重は全て立脚柱２６ａ，２６ｂ，
３５にて受けるが、更に舌状突出部２ｅを介して
筒状枠側部２ｂにて分散吸収するため、起動時又
は運動中の外乱の侵入時に際しても動力伝達は安
定して行われる。特に本考案では中間回転軸の下
方に装着されるプーリ１８は第二段目減速機の駆
動側プーリであるため半径が小さく、この点に着
目しそのプーリ１８の周囲の余裕空間を利用して
立脚柱２５ａ，２５ｂおよび３５を点在させた点
に大きな構造上の特色があり、この点は中間軸の
軸芯位置を簡易調整した後にその位置に安定に固
定することにより極めて円滑な動力伝達を可能に
し、同時に伝達装置全体の小型化にも寄与してい
るのである。しかもその結果的な効果として中間
回転軸２０の上方位置の周囲の筐体２に大きな開
口部５を形成することが可能となる。このため上
述した様に開口部５からプーリ１７，１８および
中間回転軸２０を保持した状態で直接固定保持体
１９を設置ないし取外しできるだけでなく、ベル
トなどの定期的保守作業が極めて容易となる。ま
た固定支持体１９の巻上ボルト３０も室内に収納
できるので、装置全体としても小型化が可能であ
る。 Furthermore, FIG. 4 shows a perspective view of the box-shaped frame body 2. As shown in the figure, the box-shaped frame body 2 has a lower tongue-like protruding portion 2e that protrudes like a tongue, and the upper half portion 2f has a shape in which a part of an ellipse, that is, approximately half is cut out. An opening 5 is provided. Inside the tongue-shaped protrusion 2c that is located below the opening 5 and protrudes in a semi-elliptical shape, there are three upright pillars 25a standing upright from the frame bottom 2c and the frame side 2b, 25b and 35 are exposed. In addition, the frame side portion 2b and upper half portion 2f between the input hole 7 and the output hole 8 are as follows:
It is formed into a cylindrical shape to support the load of an induction motor (not shown) that is integrated with the input shaft 11. In the case of the box-shaped frame body 2 having such a shape, pulleys 17 and 18 are connected to the upper and lower belts 15 and 16.
All the loads applied through the standing pillars 26a, 26b,
35, and is further dispersed and absorbed by the cylindrical frame side part 2b via the tongue-like protrusion 2e, so power transmission is performed stably even when a disturbance enters during startup or movement. In particular, in the present invention, the pulley 18 installed below the intermediate rotating shaft has a small radius because it is the drive pulley of the second stage reducer. A major structural feature is that the standing pillars 25a, 25b, and 35 are scattered, and this point allows extremely smooth power transmission by simply adjusting the axis position of the intermediate shaft and then stably fixing it at that position. At the same time, it also contributes to the miniaturization of the entire transmission device. Moreover, as a result, it becomes possible to form a large opening 5 in the casing 2 around the upper position of the intermediate rotating shaft 20. Therefore, as described above, not only can the fixing holder 19 be directly installed or removed while holding the pulleys 17, 18 and the intermediate rotating shaft 20 through the opening 5, but also periodic maintenance of the belt and the like is extremely easy. Further, since the hoisting bolt 30 of the fixed support 19 can also be stored indoors, the entire device can be downsized.
上述の例では上下段の各伝達機がいずれも減速
機の例で説明したが、増速機に適用可能である。
またベルトの種類もＶベルトに限らず、タイミン
グベルトなどを用いることも容易である。
In the above example, each of the upper and lower transmitters is a speed reducer, but the present invention can also be applied to a speed increaser.
Further, the type of belt is not limited to the V-belt, and a timing belt or the like may also be easily used.
さらに初段伝達機を可変径プーリを用いた無段
変速機として構成することも可能である。 Furthermore, it is also possible to configure the first stage transmission as a continuously variable transmission using a variable diameter pulley.
本考案によれば、動力伝達装置の筐体が箱型枠
体と蓋体とで形成されても、更に箱型枠体に突出
部とその上方の開口部とを形成し、突出部に複数
の立脚柱を配置して中間軸の固定支持体を固着し
たので、動力伝達は安定しベルトの切断事故も皆
無とすることができる。また特に、複数の立脚柱
が第二段目の減速機の駆動側小半径プーリの周囲
に配置しているので、伝達装置全体を小型化し、
異称的にも審美的に構成できる。一方立脚柱を突
出部内に配置しているため、箱型枠体の中間回転
軸、固定支持体の周囲に大きな開口部を明けるこ
とができる。そこで結果的には、この開口部より
固定保持体を着脱できると共に各プーリへのベル
ト掛け作業は、この開口部を利用して作業員の両
腕を挿入できるので作業能率も大幅に向上する。
According to the present invention, even if the casing of the power transmission device is formed of a box-shaped frame body and a lid body, the box-shaped frame body is further formed with a protrusion and an opening above the protrusion, and the protrusion has a plurality of Since the fixed support of the intermediate shaft is fixed by arranging the standing column, power transmission is stable and there are no belt breakage accidents. In particular, the multiple erected pillars are arranged around the small radius pulley on the drive side of the second stage reducer, which reduces the size of the entire transmission device.
It can also be constructed aesthetically. On the other hand, since the pedestal pillar is disposed within the protrusion, a large opening can be made around the intermediate rotation axis of the box-shaped frame and the fixed support. As a result, the fixed holding body can be attached and detached through this opening, and the worker's arms can be inserted using this opening to attach the belt to each pulley, thereby greatly improving work efficiency.
第１図は、本考案の一実施例筐体を使用した動
力伝達装置の縦断面図を、第２図は第１図のＸ−
Ｘ線における同装置の横断面図を、また、第３図
は同じく同装置の固定保持体の設置の様子を示す
概要図で、さらに、第４図は同実施例筐体の一部
を構成する箱型枠体の斜視図を示している。
図中、１……筐体、１３，１４，１７，および
１８……プーリ、２……箱型、１９……固定支持
体、３……蓋体、２０……中間軸、１１……入力
軸、１２……出力軸、２５ａ，２５ｂおよび３５
……立脚柱、１５および１６……上段および下段
ベルト。
FIG. 1 is a longitudinal cross-sectional view of a power transmission device using an embodiment of the casing of the present invention, and FIG.
A cross-sectional view of the same device in an X-ray view, FIG. 3 is a schematic diagram showing how the fixed holding body of the same device is installed, and FIG. A perspective view of a box-shaped frame body is shown. In the figure, 1... Housing, 13, 14, 17, and 18... Pulley, 2... Box type, 19... Fixed support, 3... Lid, 20... Intermediate shaft, 11... Input Shaft, 12...Output shaft, 25a, 25b and 35
...Standing pillars, 15 and 16... Upper and lower belts.
Claims (1)
入力軸をまた相対する他面より該出力軸を保持
し更に中間軸の上下自由端の中間部を支承する
固定保持体を支持する動力伝達装置の筐体にお
いて、上記中間軸を支承する固定保持体を上記
自由端の上下にプーリを施した上記中間軸と一
体組立体の状態で上記筐体から出し入れ可能に
するため上方の上記プーリの周囲に設けた開口
部並びにこの開口部の下方に位置し枠底部およ
び枠側部からなる突出部を形成した枠体と、上
記開口部を閉止する蓋体とから成るとともに、
常時は上記一体組立体の上記固定保持体を螺子
固着しまたベルトの交換または調整時は該螺子
の締付解放により上記入出力軸の方向に摺動可
能とするための平面台部が、上記突出部内の上
記枠底部または枠側部より上記開口部に向つて
配置した立脚柱に形成されていることを特徴と
する動力伝達装置の筐体。 (2) 上記立脚柱は、上記中間軸の下方の上記プー
リの周囲に複数個施されていることを特徴とす
る実用新案登録請求の範囲第１項記載の動力伝
達装置の筐体。[Claims for Utility Model Registration] (1) Holding the input shaft from one side and the output shaft from the opposite side so that the input and output shafts are coaxial with each other, and further holding the intermediate portion of the upper and lower free ends of the intermediate shaft. In a case of a power transmission device that supports a fixed holding body that supports the intermediate shaft, the fixed holding body that supports the intermediate shaft is integrally assembled with the intermediate shaft having pulleys provided above and below the free end of the housing. an opening provided around the above-mentioned pulley above in order to allow the pulley to be taken in and taken out from the frame, a frame body located below this opening and forming a protruding part consisting of a frame bottom part and a frame side part, and a lid for closing the above-mentioned opening part. It consists of the body and
The flat base part is normally fixed to the fixed holding body of the integrated assembly with a screw, and when the belt is replaced or adjusted, the screw is released to make it slidable in the direction of the input/output shaft. A casing of a power transmission device, characterized in that the casing is formed in a erected post disposed toward the opening from the bottom or side of the frame within the protrusion. (2) The casing of the power transmission device according to claim 1, wherein a plurality of the standing pillars are provided around the pulley below the intermediate shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9812679U JPS6231709Y2 (en) | 1979-07-18 | 1979-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9812679U JPS6231709Y2 (en) | 1979-07-18 | 1979-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5617449U JPS5617449U (en) | 1981-02-16 |
| JPS6231709Y2 true JPS6231709Y2 (en) | 1987-08-14 |
Family
ID=29330916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9812679U Expired JPS6231709Y2 (en) | 1979-07-18 | 1979-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6231709Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6347316Y2 (en) * | 1981-03-23 | 1988-12-07 | ||
| JPH0121247Y2 (en) * | 1986-06-20 | 1989-06-26 | ||
| JPH0752445Y2 (en) * | 1987-02-28 | 1995-11-29 | 東京自動機工株式会社 | Belt transmitter housing |
-
1979
- 1979-07-18 JP JP9812679U patent/JPS6231709Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5617449U (en) | 1981-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6231709Y2 (en) | ||
| KR900003471A (en) | Minimum height electric motor assembly with aluminum end shield | |
| US4503792A (en) | Pivotable motor with mounting pin | |
| US4594049A (en) | Robot articulation device | |
| KR101771389B1 (en) | rotary signal lamp | |
| JP2002061724A (en) | Wseighing table for driving machine | |
| US5299552A (en) | Method and apparatus for cutting circular opening in structure | |
| JP2511260B2 (en) | Belt transmitter housing | |
| US2731222A (en) | Rockers | |
| JPH0756301Y2 (en) | Endless winch | |
| EP0293487A1 (en) | Belt transmission | |
| JPS5927570Y2 (en) | Rotating shaft support device | |
| JPH0638200Y2 (en) | Pulley axis adjustment device | |
| JP2003156127A (en) | Support structure for oil pump | |
| KR19990028410U (en) | Chain Block Rotator | |
| JPH0422817Y2 (en) | ||
| JPS5836919Y2 (en) | Belt tension adjustment device | |
| JP4998926B2 (en) | Belt-driven work machine | |
| JPS5927569Y2 (en) | Rotating shaft support device | |
| JPH0545791Y2 (en) | ||
| JP2000257334A (en) | Driving unit for automatic door | |
| JPH0225063B2 (en) | ||
| JPS60195398A (en) | Rotary piston type compressor | |
| JPH06155365A (en) | Indutrial robot | |
| JPH0121246Y2 (en) |