JPH09257109A - Electro-magnetic automatic belt tension controller - Google Patents
Electro-magnetic automatic belt tension controllerInfo
- Publication number
- JPH09257109A JPH09257109A JP9295696A JP9295696A JPH09257109A JP H09257109 A JPH09257109 A JP H09257109A JP 9295696 A JP9295696 A JP 9295696A JP 9295696 A JP9295696 A JP 9295696A JP H09257109 A JPH09257109 A JP H09257109A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- pulley
- tension
- main body
- long hole
- 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.)
- Pending
Links
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転伝達機構であ
るプ−リ及びベルトを用いたベルト張力の電磁式自動調
整装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt tension electromagnetic automatic adjusting device using a pulley and a belt which are rotation transmitting mechanisms.
【０００２】[0002]
【従来の技術】図３は、従来のベルトを使用した駆動装
置の構成を示す正面図である。同図において、１０は駆
動側のプ−リ、１１はプ−リ１０を駆動する電動機であ
る。１３は従動側プ−リで、ベルト１２を介して駆動さ
れる。１４は従動側プ−リを介して駆動される負荷とし
ての送風機である。１５は電動機１１と駆動側プーリ１
０据え付け用の摺動式駆動機台で、この摺動式駆動機台
１５はベルト１２が弛みを生じたときに、左右に移動し
て従動側プーリ１３との距離を変えることによりベルト
１２が所要の張力となるように調節するものである。上
記構成において、駆動側で発生した動力は駆動側プ−リ
１０からベルト１２を回転させ、従動側プ−リ１３を回
転して動力伝達を行っている。2. Description of the Related Art FIG. 3 is a front view showing the structure of a conventional drive device using a belt. In the figure, 10 is a drive-side pulley, and 11 is an electric motor for driving the pulley 10. A driven pulley 13 is driven via the belt 12. A blower 14 is a load driven via the driven pulley. 15 is an electric motor 11 and a drive side pulley 1
0 is a sliding type drive stand for installation. When the belt 12 becomes loose, the sliding type drive stand 15 moves to the left and right to change the distance between the belt 12 and the driven pulley 13. It is adjusted so that the required tension is obtained. In the above structure, the power generated on the driving side rotates the belt 12 from the driving side pulley 10 and rotates the driven side pulley 13 to transmit the power.
【０００３】[0003]
【発明が解決しようとする課題】ところで、ベルトを長
時間使用するとベルトが伸びて各プーリ間に弛みを生じ
るため、再度、摺動式駆動機台を左右にスライドさせ、
位置決めをしてベルトの張力を所要の状態とする必要が
ある。もし、このような位置決めによるベルト張力の調
整をしないとベルトがスリップして発熱し、ベルトが切
れるという事故を発生する恐れがあった。このように、
従来のものでは、ベルトで駆動装置を駆動する場合、一
定期間において、ベルトの張力を調整するために電動機
を停止して摺動式駆動機台の左右の位置決めをしなけれ
ばならず、このことは煩雑であった。本発明は従来のも
のの上記問題点（課題）を解決し、上記摺動式駆動機台
を設けることなく、長時間使用してもベルトの張力を保
持することができるベルト張力の電磁式自動調整装置を
提供することを目的とする。By the way, when the belt is used for a long time, the belt stretches and loosens between the pulleys. Therefore, the sliding type drive base is slid again right and left,
It is necessary to position the belt so that the tension of the belt is in a desired state. If the belt tension is not adjusted by such positioning, the belt may slip and generate heat, which may cause the belt to break. in this way,
In the conventional system, when driving the drive device with a belt, the electric motor must be stopped and left and right positioning of the slide type drive base must be performed in order to adjust the tension of the belt for a certain period. Was complicated. The present invention solves the above-mentioned problems (problems) of the conventional ones, and the electromagnetic automatic adjustment of the belt tension capable of retaining the belt tension even when used for a long time without providing the sliding drive base. The purpose is to provide a device.
【０００４】[0004]
【課題を解決するための手段】本発明のベルト張力の電
磁式自動調整装置は、ベルトを駆動側のプーリと従動側
のプーリ側に亙って設けて回転力を伝達する回転駆動機
構において、上記駆動側のプーリと従動側プーリが対向
配置される中間位置に設けられる垂直方向に延びる支持
体、この支持体の長手方向に、上記ベルトに対して直交
方向及びベルトと同方向に夫々に設けた第１及び第２の
長孔、滑車本体部分の両側に軸を設けた滑車、この滑車
の軸をばねを介して装着された磁性体より成る可動体を
吸引する電磁石を備え、第１の長孔に滑車の軸を挿入
し、第２の長孔内に滑車の本体部分を収納し、この滑車
の本体部分を第２の長孔内を通過するベルトの上面に当
接し、電磁石を励磁することにより、ばねのばね圧に抗
して可動体を吸引して滑車の本体部分によりベルトを押
圧し、ベルトに対して張力を付与するように構成した。
この場合、上記ベルトの張力の弛み度合いに応じて上記
電磁石の励磁を調整するようにすれば良い。なお、上記
ベルトとしては、Ｖベルトを使用するのが望ましい。SUMMARY OF THE INVENTION An electromagnetic automatic adjusting device for a belt tension according to the present invention is a rotary drive mechanism for transmitting a rotational force by providing a belt over a driving pulley and a driven pulley. Vertically extending supports provided at an intermediate position where the driving pulley and the driven pulley face each other, and provided in the longitudinal direction of the supports in a direction orthogonal to the belt and in the same direction as the belt. The first and second elongated holes, a pulley having shafts provided on both sides of the pulley main body portion, and an electromagnet for attracting a movable body made of a magnetic body mounted on the shafts of the pulleys via a spring. The shaft of the pulley is inserted into the long hole, the main body of the pulley is stored in the second long hole, the main body of the pulley is brought into contact with the upper surface of the belt passing through the second long hole, and the electromagnet is excited. By doing so, the movable body is attracted against the spring pressure of the spring. The belt was pressed by the body portion of the pulley, and configured to apply tension to the belt.
In this case, the excitation of the electromagnet may be adjusted according to the degree of looseness of the tension of the belt. It is desirable to use a V belt as the belt.
【０００５】[0005]
【発明の実施の形態】図１は本発明の一実施の形態であ
るベルト張力の電磁式自動調整装置の正面図、図２は図
１のＡ−Ａ′線における縦断側面図である。各図におい
て、１は電動機、２は電動機１により駆動される駆動側
プーリである。３は従動側プーリ、４はＶベルトで、駆
動側プーリ２と従動側プーリ３に亙って装着される。５
は駆動プーリと従動側プーリとの略中間点に配置される
垂直方向に延びる支持体で、この支持体５の長手方向
（図面では上下方向）には、図１及び図２に示すように
Ｖベルト４に対して直交方向に所定長さの第１の長孔５
Ｎ1を形成し、また、ベルトと同方向に所定長さの第２
の長孔５Ｎ2を形成する。Ｖベルト４は前記のように各
プーリ２、３間に亙って装着されるが、この場合、各プ
ーリ２、３の中間にある支持体５を横切るＶベルト４の
部分は、図２に示すように第２の長孔５Ｎ2内を通過す
るように配置される。６は張力調整用の滑車で、滑車６
の取付軸６ａは支持体５の第１の長孔５Ｎ1内に収納さ
れ、滑車６の本体部分は第２の長孔５Ｎ2内に収納され
て、長孔５Ｎ2を通過するＶベルト４の上面を次の構成
で押圧するようにＶベルト４に当接されている。即ち、
滑車６には取付軸６ａが設けられ、この取付軸６ａの両
端には各ばね７ａ、７ｂの一端が取り付けられ、各ばね
の他端は電磁石の可動体８に対して装着されている。な
お、可動体８は磁性体より成り、断面Ｔ字状に形成され
ている。９は電磁石、９ａ、９ｂは夫々電磁磁石の磁
極、９ｃは電磁石のコイルである。本発明のベルト張力
の電磁式自動調整装置は、上記のように構成されてい
る。次に、その動作を説明する。電動機１を駆動し、駆
動側プーリ２を駆動してＶベルト４を回動し、従動側プ
ーリ３を駆動し、同プーリ３に連結される負荷（図示せ
ず）を駆動する。ところで、本発明ではコイル９ｃの励
磁により電磁石９が可動体８を吸引することによりばね
７ａ、７ｂを介して滑車６を下方に引張るため、Ｖベル
ト４に対しては、滑車６による押圧力が付与されるの
で、Ｖベルト４は所定の張力で駆動される。Ｖベルト４
は、経年変化によって弛みが生じるが、本発明の場合は
上記のように電磁石９の励磁によって吸引される可動体
８からの引張力によってＶベルト４の弛みに対応して、
滑車６が長孔５Ｎ2内をガイドされて自動的にばね７
ａ、７ｂのばね圧に抗して降下し、Ｖベルト４に所定の
張力を付与するようにし、張力を所定値に保持するよう
になっている。なお、経年変化により、さらに、そのベ
ルトの弛みが大となったときでも、所定の弛みの範囲内
では電磁石のコイル９ｃに与える励磁を増大すること
で、その分、滑車６は下降するので、Ｖベルト４の弛み
に対処できるようになっている。1 is a front view of a belt tension electromagnetic automatic adjusting device according to an embodiment of the present invention, and FIG. 2 is a vertical sectional side view taken along the line AA 'in FIG. In each drawing, 1 is an electric motor, and 2 is a drive side pulley driven by the electric motor 1. Reference numeral 3 is a driven pulley, and 4 is a V belt, which is mounted over the drive pulley 2 and the driven pulley 3. 5
Is a support body extending in the vertical direction, which is arranged at a substantially intermediate point between the drive pulley and the driven pulley, and in the longitudinal direction of the support body 5 (vertical direction in the drawing), as shown in FIGS. A first long hole 5 having a predetermined length in a direction orthogonal to the belt 4.
N 1 is formed, and a second part of a predetermined length is formed in the same direction as the belt.
5N 2 of the long hole is formed. The V-belt 4 is mounted between the pulleys 2 and 3 as described above, but in this case, the portion of the V-belt 4 that crosses the support 5 in the middle of the pulleys 2 and 3 is shown in FIG. As shown, it is arranged so as to pass through the inside of the second elongated hole 5N 2 . Reference numeral 6 is a pulley for tension adjustment.
Of the V-belt 4 passing through the long hole 5N 2 is accommodated in the first long hole 5N 1 of the support 5 and the main body portion of the pulley 6 is accommodated in the second long hole 5N 2 . Is abutted on the V-belt 4 so as to press the upper surface of the V-belt with the following configuration. That is,
The pulley 6 is provided with an attachment shaft 6a, one end of each spring 7a, 7b is attached to both ends of the attachment shaft 6a, and the other end of each spring is attached to a movable body 8 of an electromagnet. The movable body 8 is made of a magnetic material and has a T-shaped cross section. Reference numeral 9 is an electromagnet, 9a and 9b are magnetic poles of an electromagnetic magnet, respectively, and 9c is a coil of the electromagnet. The automatic belt tension electromagnetic adjusting device of the present invention is configured as described above. Next, the operation will be described. The electric motor 1 is driven, the drive side pulley 2 is driven to rotate the V belt 4, the driven side pulley 3 is driven, and a load (not shown) connected to the pulley 3 is driven. By the way, in the present invention, since the electromagnet 9 attracts the movable body 8 by exciting the coil 9c to pull the pulley 6 downward via the springs 7a and 7b, the pressing force of the pulley 6 against the V-belt 4 is applied. Since it is applied, the V belt 4 is driven with a predetermined tension. V belt 4
Loosens due to aging, but in the case of the present invention, in response to the looseness of the V-belt 4 due to the pulling force from the movable body 8 attracted by the excitation of the electromagnet 9 as described above,
The pulley 6 is guided in the long hole 5N 2 and automatically springs 7.
The V-belt 4 is lowered against the spring pressures of a and 7b to give a predetermined tension to the V-belt 4, and the tension is maintained at a predetermined value. Even if the slack of the belt becomes large due to aging, the excitation applied to the coil 9c of the electromagnet is increased within the range of the predetermined slack, so that the pulley 6 descends accordingly. The slack of the V-belt 4 can be dealt with.
【０００６】[0006]
【発明の効果】本発明のベルト張力の電磁式自動調整装
置は、上記のように構成されるから、次のような優れた
効果を有する。 通常のＶベルトの弛みに対しては、駆動プーリと従動
プーリの略中間点で電磁石の励磁による可動体の吸引に
よりばねを介して滑車を引張り、この滑車に当接された
Ｖベルトを押圧することによってベルトの弛みが生じな
いように自動的に調整しているので、ベルト駆動に支障
を生じることが防止される。 また、経年変化によるベルトの大幅な弛みに対して
も、所定の範囲までは電磁石の励磁の大きさを調整する
ことにより張力の調整を行うことができる。 この結果、ベルトは従来に比べて可成りの長時間に亙
って張り替えなくて使用できる。 また、ベルトとしてＶベルトを使用すると、滑車との
嵌合が円滑にできるから、本調整の構成を容易に行うこ
とができる。Since the automatic belt tension electromagnetic adjusting device of the present invention is constructed as described above, it has the following excellent effects. For slackening of a normal V-belt, a pulley is pulled through a spring by attraction of a movable body by excitation of an electromagnet at a substantially intermediate point between a driving pulley and a driven pulley, and the V-belt abutting on the pulley is pressed. As a result, the belt is automatically adjusted so as not to loosen, so that it is possible to prevent the belt drive from being disturbed. Further, even if the belt is greatly loosened due to aging, the tension can be adjusted by adjusting the magnitude of excitation of the electromagnet up to a predetermined range. As a result, the belt can be used for a considerably long time as compared with the conventional one without being re-tensioned. Further, when the V-belt is used as the belt, fitting with the pulley can be smoothly performed, so that the main adjustment can be easily configured.
【図１】本発明の一実施の形態であるベルト張力の電磁
式自動調整装置の正面図である。FIG. 1 is a front view of a belt tension electromagnetic automatic adjusting device according to an embodiment of the present invention.
【図２】図１のＡ−Ａ′線における縦断側面図である。FIG. 2 is a vertical sectional side view taken along the line AA ′ in FIG.
【図３】従来のベルトを使用した駆動装置の正面図であ
る。FIG. 3 is a front view of a drive device using a conventional belt.
１：電動機 ２：駆動側プ−リ ３：従動側プ−リ ４：Ｖベルト ５：支持体 ５Ｎ1、５Ｎ2：長孔 ６：張力調整用の滑車 ７ａ、７ｂ：ばね ８：可動体 ９：電磁石 ９ｃ：コイル1: motor 2: drive-side up - Li 3: driven flop - Li 4: V belt 5: support 5N 1, 5N 2: long hole 6: pulleys 7a for tensioning, 7b: Spring 8: movable body 9 : Electromagnet 9c: Coil
Claims (3)
リ側に亙って設けて回転力を伝達する回転駆動機構にお
いて、 上記駆動側のプーリと従動側プーリが対向配置される中
間位置に設けられる垂直方向に延びる支持体、 この支持体の長手方向に上記ベルトに対して直交方向及
び上記ベルトと同方向に夫々に設けた第１及び第２の長
孔、 滑車本体部分の両側に軸を設けた滑車、上記滑車の軸を
ばねを介して装着された磁性体より成る可動体、 この可動体を吸引する電磁石を備え、 上記第１の長孔に滑車の軸を挿入し、第２の長孔内に滑
車の本体部分を収納し、この滑車の本体部分を第２の長
孔内を通過するベルトの上面に当接し、上記電磁石を励
磁することにより、ばねのばね圧に抗して可動体を吸引
することによって、上記滑車の本体部分が引張られ、上
記ベルトが押圧されて、上記ベルトに対して張力を付与
するようにしたことを特徴とするベルト張力の電磁式自
動調整装置。1. A rotary drive mechanism in which a belt is provided over a drive side pulley and a driven side pulley side to transmit a rotational force, at an intermediate position where the drive side pulley and the driven side pulley are arranged to face each other. A vertically extending support body, first and second elongated holes provided in the longitudinal direction of the support body in a direction orthogonal to the belt and in the same direction as the belt, and shafts on both sides of the pulley main body portion. And a movable body made of a magnetic body having the shaft of the pulley attached via a spring, and an electromagnet for attracting the movable body. The pulley shaft is inserted into the first slot, and The main body of the pulley is housed in the long hole of the pulley, the main body of the pulley is brought into contact with the upper surface of the belt passing through the second long hole, and the electromagnet is excited to resist the spring pressure of the spring. By sucking the movable body by Is pulled, the belt is pressed, the electromagnetic automatic adjuster of belt tension, characterized in that so as to impart tension to the belt.
て、上記電磁石の励磁を調整するようにした請求項１記
載のベルト張力の電磁式自動調整装置。2. The automatic belt tension electromagnetic adjusting device according to claim 1, wherein the excitation of the electromagnet is adjusted according to the degree of looseness of the tension of the belt.
うにした請求項１記載のベルト張力の電磁式自動調整装
置。3. The automatic belt tension adjusting device according to claim 1, wherein a V-belt is used as the belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9295696A JPH09257109A (en) | 1996-03-25 | 1996-03-25 | Electro-magnetic automatic belt tension controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9295696A JPH09257109A (en) | 1996-03-25 | 1996-03-25 | Electro-magnetic automatic belt tension controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09257109A true JPH09257109A (en) | 1997-09-30 |
Family
ID=14068916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9295696A Pending JPH09257109A (en) | 1996-03-25 | 1996-03-25 | Electro-magnetic automatic belt tension controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09257109A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002138847A (en) * | 2000-10-31 | 2002-05-17 | Mitsubishi Electric Corp | Belt transmission |
| WO2008089881A1 (en) | 2007-01-24 | 2008-07-31 | Thyssenkrupp Presta Steertec Gmbh | Electric power steering system with belt drive and contactless belt tension |
| US9447850B2 (en) | 2012-04-28 | 2016-09-20 | Litens Automotive Partnership | Adjustable tensioner |
| US9464697B2 (en) | 2011-09-05 | 2016-10-11 | Litens Automotive Partnership | Intelligent belt drive system and method |
| US9989129B2 (en) | 2011-05-13 | 2018-06-05 | Litens Automotive Partnership | Intelligent belt drive system and method |
-
1996
- 1996-03-25 JP JP9295696A patent/JPH09257109A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002138847A (en) * | 2000-10-31 | 2002-05-17 | Mitsubishi Electric Corp | Belt transmission |
| WO2008089881A1 (en) | 2007-01-24 | 2008-07-31 | Thyssenkrupp Presta Steertec Gmbh | Electric power steering system with belt drive and contactless belt tension |
| DE102007004520A1 (en) | 2007-01-24 | 2008-07-31 | Thyssenkrupp Presta Steertec Gmbh | Electric power steering with belt drive and non-contact belt tension |
| US9989129B2 (en) | 2011-05-13 | 2018-06-05 | Litens Automotive Partnership | Intelligent belt drive system and method |
| US9464697B2 (en) | 2011-09-05 | 2016-10-11 | Litens Automotive Partnership | Intelligent belt drive system and method |
| US9447850B2 (en) | 2012-04-28 | 2016-09-20 | Litens Automotive Partnership | Adjustable tensioner |
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