JP2021054557A - Belt meander prevention device, belt meander detector, and belt meander prevention method - Google Patents

Belt meander prevention device, belt meander detector, and belt meander prevention method Download PDF

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JP2021054557A
JP2021054557A JP2019177429A JP2019177429A JP2021054557A JP 2021054557 A JP2021054557 A JP 2021054557A JP 2019177429 A JP2019177429 A JP 2019177429A JP 2019177429 A JP2019177429 A JP 2019177429A JP 2021054557 A JP2021054557 A JP 2021054557A
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belt
pulley shaft
driven body
transmission mechanism
wheel
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弌大 中村
Kazuhiro Nakamura
弌大 中村
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Nakamura Bussan Co Ltd
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Nakamura Bussan Co Ltd
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Abstract

To provide a mechanical belt meander prevention device that is unlikely to wear out due to contact with a belt, even if the belt is hard and thin-walled like a steel belt.SOLUTION: A belt meander prevention device A includes a planetary wheel 1 that is freely rotatable with respect to a pully shaft B3 of a belt conveyor B, a driven body 2, which is engaged with the planetary wheel and is provided to reciprocate freely in a shaft direction of the pulley shaft, a transmission mechanism 3, which is linked to the driven body and is provided to reciprocate freely in the shaft direction of the pully shaft, and a belt modification mechanism D that moves only a belt wheel B1 or either the pully shaft or the belt wheel based on an amount of movement of the transmission mechanism. The planetary wheel has a detection surface 1a that makes contact with an inner surface B21 of a belt B2 that has shifted to one side relative to the belt wheel. The driven body has an output unit 2b that converts the rotation of the planetary wheel into a reciprocating motion in the shaft direction of the pully shaft and transmits it to the transmission mechanism. The transmission mechanism has an actuating unit 3b that moves the belt modification mechanism based on the amount of movement of the output unit.SELECTED DRAWING: Figure 3

Description

本発明は、ベルトコンベヤにおけるベルトの位置ズレや蛇行などの片寄りを自動的に検出して修正するために用いられるベルト蛇行防止装置、及び、ベルト蛇行防止装置に用いられるベルト蛇行検出器、並びに、ベルト蛇行防止装置やベルト蛇行検出器を用いたベルト蛇行防止方法に関する。 The present invention includes a belt meandering prevention device used for automatically detecting and correcting a bias such as a belt misalignment or meandering in a belt conveyor, a belt meandering detector used for a belt meandering prevention device, and a belt meandering detector. , The present invention relates to a belt meandering prevention method using a belt meandering prevention device and a belt meandering detector.

従来、この種のベルト蛇行防止装置やベルト蛇行検出器として、ゴムベルトやスチールベルト等のベルトの一部に接する蛇行防止ロールや蛇行防止ローラが、その幅方向の中心を揺動の回転中心にして揺動可能に設けられ、ベルトの左右端面に当接するバー又はローラーを揺動可能なレバー上に左右いづれか又は夫々に設けたコンベヤーベルトの蛇行防止装置がある(例えば、特許文献1参照)。
バー又はローラーは、レバーの一端に対して回転自在に取り付けられ、レバーの他端を蛇行防止ロールの取付台と連係させるか、又は蛇行防止ローラのシャフトと連係させている。蛇行防止ロールや蛇行防止ローラは、バー又はローラーの移動動作を介してその揺動方向に傾斜するように支持される。蛇行したベルトの左右への移動量に応じてバー又はローラーに受けた力が、レバーを介して蛇行防止ロールや蛇行防止ローラへ伝達される。これにより、蛇行防止ロールや蛇行防止ローラが傾斜して、ベルトを蛇行した側と反対方向へ戻すよう働く。
また特許文献1の従来技術には、ベルトの位置を検知装置で電気的に検出して、検知装置から出力される信号により、従動側ロール又は第3のロールの傾斜角を変化させてベルトの蛇行防止することも記載されている。
Conventionally, as this type of belt meandering prevention device or belt meandering detector, a meandering prevention roll or a meandering prevention roller that contacts a part of a belt such as a rubber belt or a steel belt has a center in the width direction as the center of rotation of the swing. There is a meandering prevention device for a conveyor belt that is provided so as to be swingable and has bars or rollers that come into contact with the left and right end faces of the belt on either the left or right side or each of the swingable levers (see, for example, Patent Document 1).
The bar or roller is rotatably attached to one end of the lever and the other end of the lever is linked to the mount of the meandering prevention roll or to the shaft of the meandering prevention roller. The meandering prevention rolls and the meandering prevention rollers are supported so as to incline in the swinging direction via the moving motion of the bar or roller. The force received by the bar or roller according to the amount of movement of the meandering belt to the left and right is transmitted to the meandering prevention roll or the meandering prevention roller via the lever. As a result, the meandering prevention roll and the meandering prevention roller are tilted to work to return the belt in the direction opposite to the meandering side.
Further, in the prior art of Patent Document 1, the position of the belt is electrically detected by the detection device, and the inclination angle of the driven side roll or the third roll is changed by the signal output from the detection device to change the inclination angle of the belt. It is also described to prevent meandering.

実開昭50−049885号公報Jitsukaisho 50-048985

ところで、ベルトとしてスチールベルトは、耐久性・耐食性・耐洗浄薬品性に優れるため、食品業界や医薬品業界に限らず、クリーンルーム内の搬送などの他分野で用いられている。スチールベルトは、その他のゴムベルトや樹脂ベルトに比べ、硬質で且つ肉厚寸法が遥かに薄くすることが可能になる。硬質で且つ肉薄なスチールベルトのベルト端部は、鋭く尖った断面形状となる。
しかし乍ら、特許文献1では、ベルト端部がバー又はローラーに当接することでベルトの蛇行を機械的に検出するため、ベルトがスチールベルトのように硬質で肉薄な場合には、鋭利なベルト端部との当接に伴ってバー又はローラーが摩耗し易い。
つまり、スチールベルトのように硬質で肉薄なベルトの走行中は、鋭利なベルト端部がバー又はローラーに当接し続けるため、バー又はローラーのベルト当接部位は比較的に短時間で摩耗してしまう。これにより、摩耗したバー又はローラーの部品交換を頻繁に行う必要があってメンテナンス性に劣るとともに、部品交換中はベルトが走行不能となるため稼働率が低下するという問題があった。
また、その他のベルト蛇行検出方法として電気的な検知装置を用いることが考えられる。しかし、電気的な検知装置は、ベルトの他に搬送物などにも反応するため、搬送環境の変化などでベルト以外に搬送物などを検出して誤作動するおそれがあり、信頼性に劣るという問題がある。誤作動の防止には高精度なセンサーなどを要して設備が複雑化してコストアップになるという問題がある。
このような状況下で、スチールベルトのように硬質で肉薄なベルトであっても、ベルトとの接触により摩耗し難い機械的なベルト蛇行検出器を具備したベルト蛇行防止装置やベルト蛇行防止方法が要望されている。
By the way, as a belt, a steel belt is used not only in the food industry and the pharmaceutical industry but also in other fields such as transportation in a clean room because it has excellent durability, corrosion resistance, and cleaning chemical resistance. Compared to other rubber belts and resin belts, steel belts are harder and can be made much thinner in wall thickness. The belt end of a hard and thin steel belt has a sharp and pointed cross-sectional shape.
However, in Patent Document 1, since the meandering of the belt is mechanically detected by the belt end contacting the bar or the roller, when the belt is hard and thin like a steel belt, it is a sharp belt. The bar or roller is prone to wear due to contact with the end.
That is, while a hard and thin belt such as a steel belt is running, the sharp belt end keeps in contact with the bar or roller, so that the belt contact portion of the bar or roller wears in a relatively short time. It ends up. As a result, it is necessary to frequently replace the worn bar or roller parts, which is inferior in maintainability, and there is a problem that the belt cannot run during the parts replacement, so that the operating rate is lowered.
Further, it is conceivable to use an electric detection device as another belt meandering detection method. However, since the electrical detection device reacts to the transported object in addition to the belt, it may detect the transported object other than the belt and malfunction due to changes in the transport environment, which is inferior in reliability. There's a problem. In order to prevent malfunction, a high-precision sensor or the like is required, which causes a problem that the equipment becomes complicated and the cost increases.
Under such circumstances, even if the belt is hard and thin like a steel belt, a belt meandering prevention device or a belt meandering prevention method equipped with a mechanical belt meandering detector that is hard to be worn by contact with the belt is available. It is requested.

このような課題を解決するために本発明に係るベルト蛇行防止装置は、ベルトコンベヤのベルト車に対するベルトの片寄りを検出して自動修正するベルト蛇行防止装置であって、前記ベルトコンベヤのプリー軸に対して回転自在に設けられる遊転車と、前記遊転車と係合して前記プリー軸の軸方向へ往復動自在に設けられる従動体と、前記従動体と連係して前記プリー軸の軸方向へ往復動自在に設けられる伝動機構と、前記伝動機構の移動量に基づいて前記ベルト車のみ又は前記プリー軸及び前記ベルト車のいずれか一方を動かすベルト修正機構と、を備え、前記遊転車は、前記ベルト車に対して片寄った前記ベルトの内面と接触する検出面を有し、前記従動体は、前記遊転車の回転を前記プリー軸の軸方向への往復動に変えて前記伝動機構へ伝える出力部を有し、前記伝動機構は、前記出力部の移動量に基づいて前記ベルト修正機構を動かす作動部を有することを特徴とする。
さらに、このような課題を解決するために本発明に係るベルト蛇行検出器は、ベルトコンベヤのベルト車に対するベルトの片寄りを自動修正するために前記ベルトの片寄りを検出するベルト蛇行検出器であって、前記ベルトコンベヤのプリー軸に対して回転自在で且つ前記ベルトコンベヤの内面と対向するように設けられる遊転車と、前記遊転車と係合して前記プリー軸の軸方向へ往復動自在に設けられる従動体と、前記従動体と連係して前記プリー軸の軸方向へ往復動自在に設けられる伝動機構と、を備え、前記遊転車は、前記ベルト車に対して片寄った前記ベルトの内面と接触する検出面を有し、前記従動体は、前記遊転車の回転を前記プリー軸の軸方向への往復動に変えて前記伝動機構へ伝える出力部を有し、前記伝動機構は、前記出力部の移動量に基づいて前記ベルト車のみ又は前記プリー軸及び前記ベルト車のいずれか一方を動かす作動部を有することを特徴とする。
また、このような課題を解決するために本発明に係るベルト蛇行防止方法は、ベルトコンベヤのベルト車に対するベルトの片寄りを自動修正するベルト蛇行防止方法であって、前記ベルト車に対して片寄った前記ベルトの内面を、前記ベルトコンベヤのプリー軸に対して回転自在に設けられる遊転車の検出面と接触させることにより、前記ベルトの片寄り方向及び片寄り量を検出する検出工程と、前記遊転車の回転運動を従動体により前記プリー軸の軸方向への往復動運動に変えて伝動機構に伝える動力伝達工程と、前記伝動機構を介して前記従動体の移動量に基づいて前記ベルト車のみ又は前記プリー軸及び前記ベルト車のいずれか一方を動かすベルト修正工程と、を含むことを特徴とする。
In order to solve such a problem, the belt meandering prevention device according to the present invention is a belt meandering prevention device that detects and automatically corrects the deviation of the belt with respect to the belt wheel of the belt conveyor, and is a pulley shaft of the belt conveyor. A freewheeling vehicle that is rotatably provided with respect to the above, a driven body that is engaged with the freewheeling vehicle and is provided so as to reciprocate in the axial direction of the pulley shaft, and a driven body that is linked to the driven body and of the pulley shaft The play is provided with a transmission mechanism provided so as to be reciprocally movable in the axial direction, and a belt correction mechanism for moving only the belt wheel or one of the pulley shaft and the belt wheel based on the amount of movement of the transmission mechanism. The rolling wheel has a detection surface that comes into contact with the inner surface of the belt that is offset from the belt wheel, and the driven body changes the rotation of the idler wheel into an axial reciprocating motion of the pulley shaft. It has an output unit that transmits to the transmission mechanism, and the transmission mechanism has an operating unit that moves the belt correction mechanism based on the amount of movement of the output unit.
Further, in order to solve such a problem, the belt meandering detector according to the present invention is a belt meandering detector that detects the deviation of the belt in order to automatically correct the deviation of the belt with respect to the belt wheel of the belt conveyor. A freewheeling vehicle that is rotatable with respect to the pulley shaft of the belt conveyor and is provided so as to face the inner surface of the belt conveyor and reciprocates in the axial direction of the pulley shaft by engaging with the freewheeling vehicle. The idler is provided with a driven body that is movably provided and a transmission mechanism that is linked to the driven body and is provided so as to be reciprocally movable in the axial direction of the pulley shaft. The driven body has a detection surface that comes into contact with the inner surface of the belt, and the driven body has an output unit that changes the rotation of the idler wheel into an axial reciprocating motion of the pulley shaft and transmits it to the transmission mechanism. The transmission mechanism is characterized by having an operating portion that moves only the belt wheel or either the pulley shaft and the belt wheel based on the amount of movement of the output unit.
Further, in order to solve such a problem, the belt meandering prevention method according to the present invention is a belt meandering prevention method for automatically correcting the deviation of the belt with respect to the belt wheel of the belt conveyor, and is offset with respect to the belt wheel. A detection step of detecting the offset direction and the offset amount of the belt by bringing the inner surface of the belt into contact with the detection surface of the idler wheel rotatably provided with respect to the pulley shaft of the belt conveyor. The power transmission step of converting the rotational motion of the idler vehicle into a reciprocating motion of the pulley shaft in the axial direction by the driven body and transmitting it to the transmission mechanism, and the movement amount of the driven body via the transmission mechanism. It is characterized by including a belt correction step of moving only the belt wheel or one of the pulley shaft and the belt wheel.

本発明の実施形態に係るベルト蛇行防止装置及びベルト蛇行検出器並びにベルト蛇行防止方法の全体構成を示す説明図であり、正常走行状態の要部を一部切欠した平面図である。It is explanatory drawing which shows the whole structure of the belt meandering prevention device, the belt meandering detector, and the belt meandering prevention method which concerns on embodiment of this invention, and is the top view which partially cut out the main part of the normal running state. 図1の(2)−(2)線に沿える拡大縦断正面図である。It is an enlarged longitudinal front view along the line (2)-(2) of FIG. 片寄り状態の要部を一部切欠した平面図である。It is a top view which cut out a part of the main part in a biased state. 同部分拡大平面図である。It is the same partial enlarged plan view. 正常走行状態の一部切欠した斜視図である。It is a partially cutaway perspective view of a normal running state.

以下、本発明の実施形態を図面に基づいて詳細に説明する。
本発明の実施形態に係るベルト蛇行防止装置Aは、図1〜図5に示すように、ベルトコンベヤBのベルト車B1に対してベルトB2の位置が自動的に維持されるようにベルトB2の位置ズレや蛇行などの片寄りを自動修正するための機器であり、ベルトコンベヤBのプリー軸B3に設けられる。
一般的にベルトコンベヤBは、ベルトB2の載置面B2′がほぼ水平又は水平から所定角度傾斜するように設置される。図1に示されるベルトB2の正常走行状態で、載置面B2′上に載せられた搬送物の偏在などで重量バランスが偏った時には、図3の矢印に示されるように、ベルトB2がプリー軸B3の軸方向に沿った幅方向Wのいずれか一方へ位置ズレして片寄りが生じる。
詳しく説明すると、ベルト蛇行防止装置Aは、ベルト車B1に対するベルトB2の片寄りを検出するためのベルト蛇行検出器Cと、ベルト蛇行検出器Cからの出力に基づいてベルト車B1のみ又はプリー軸B3及びベルト車B1のいずれか一方を動かすためのベルト修正機構Dと、を主要な構成要素として備えている。
その他に本発明の実施形態に係るベルト蛇行防止装置Aにおいてベルト蛇行検出器Cは、ベルトコンベヤBのプリー軸B3に対して回転自在に設けられる遊転車1と、遊転車1と係合してプリー軸B3の軸方向へ往復動自在に設けられる従動体2と、従動体2と連係してプリー軸B3の軸方向へ往復動自在に設けられる伝動機構3と、を備えている。
なお、プリー軸B3の軸方向やベルトB2の片寄り方向又は反片寄り方向を以下「幅方向W」といい、ベルトB2の走行方向を以下「進行方向L」といい、ベルトB2の厚み方向を以下「高さ方向H」という。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 5, the belt meandering prevention device A according to the embodiment of the present invention has a belt B2 so that the position of the belt B2 is automatically maintained with respect to the belt wheel B1 of the belt conveyor B. It is a device for automatically correcting deviations such as misalignment and meandering, and is provided on the pulley shaft B3 of the belt conveyor B.
Generally, the belt conveyor B is installed so that the mounting surface B2'of the belt B2 is substantially horizontal or is inclined by a predetermined angle from the horizontal. In the normal running state of the belt B2 shown in FIG. 1, when the weight balance is unbalanced due to uneven distribution of the conveyed object placed on the mounting surface B2', the belt B2 is pulled as shown by the arrow in FIG. The position shifts to either one of the width direction W along the axial direction of the shaft B3, and a bias occurs.
More specifically, the belt serpentine prevention device A includes a belt serpentine detector C for detecting the deviation of the belt B2 with respect to the belt wheel B1 and a belt wheel B1 only or a pulley shaft based on the output from the belt serpentine detector C. A belt correction mechanism D for moving either B3 or the belt wheel B1 is provided as a main component.
In addition, in the belt serpentine prevention device A according to the embodiment of the present invention, the belt serpentine detector C engages with the idler 1 rotatably provided with respect to the pulley shaft B3 of the belt conveyor B and the idler 1. The driven body 2 is provided so as to be reciprocally reciprocating in the axial direction of the pulley shaft B3, and the transmission mechanism 3 is provided so as to be reciprocally reciprocating in the axial direction of the ply shaft B3 in cooperation with the driven body 2.
The axial direction of the pulley shaft B3 and the biased direction or the counter-biased direction of the belt B2 are hereinafter referred to as "width direction W", the traveling direction of the belt B2 is hereinafter referred to as "traveling direction L", and the thickness direction of the belt B2. Is hereinafter referred to as "height direction H".

ベルトコンベヤBのベルト車B1とは、プリー軸B3で支持されたドライブプーリなどの駆動プーリB11,ヘッドプーリやテールプーリなどの従動プーリB12,テンションプーリ(図示しない)などからなる。これら駆動プーリB11,従動プーリB12及びテンションプーリに亘ってベルトB2が架け渡され、駆動プーリB11の作動によってベルトB2を進行方向Lへ移動させる。
ベルトB2としては、ゴムや合成樹脂などの軟質材料で無端環状に形成されたものを用いることが一般的である。それ以外には、スチールベルトなどのような硬質材料で肉厚寸法が薄く形成されたベルトB2を用いることも可能である。この硬質で肉薄なベルトB2の端部形状は、鋭く尖った断面形状となる。
プリー軸B3は、ベルト車B1となる駆動プーリB11,従動プーリB12及びテンションプーリを、ベルトコンベヤBのフレームB4に対してそれぞれ回転自在に支持するためのロッドである。
ベルトコンベヤBの具体例として図1〜図5に示される場合には、スチールベルトなどのような硬質で肉薄なベルトB2が架け渡され、ベルト車B1として従動プーリ(テールプーリ)B12にベルト蛇行防止装置Aを配設している。
また、その他の例として図示しないが、ベルトB2として硬質で肉薄なものに代え、軟質で肉厚なものなどに変更することや、従動プーリB12に代えて駆動プーリB11やテンションプーリにベルト蛇行防止装置Aを配設することも変更可能である。
The belt wheel B1 of the belt conveyor B includes a drive pulley B11 such as a drive pulley supported by a pulley shaft B3, a driven pulley B12 such as a head pulley and a tail pulley, and a tension pulley (not shown). The belt B2 is bridged over the drive pulley B11, the driven pulley B12, and the tension pulley, and the belt B2 is moved in the traveling direction L by the operation of the drive pulley B11.
As the belt B2, it is common to use a belt made of a soft material such as rubber or synthetic resin and formed in an endless annular shape. Other than that, it is also possible to use a belt B2 formed of a hard material such as a steel belt and having a thin wall thickness. The end shape of the hard and thin belt B2 has a sharp and pointed cross-sectional shape.
The pulley shaft B3 is a rod for rotatably supporting the drive pulley B11, the driven pulley B12, and the tension pulley, which are the belt wheels B1, with respect to the frame B4 of the belt conveyor B, respectively.
In the case shown in FIGS. 1 to 5 as a specific example of the belt conveyor B, a hard and thin belt B2 such as a steel belt is laid over, and the belt wheel B1 is used as a belt wheel B1 to prevent the belt meandering on the driven pulley (tail pulley) B12. The device A is arranged.
Further, although not shown as another example, the belt B2 may be changed to a soft and thick one instead of a hard and thin one, and the drive pulley B11 or the tension pulley may be replaced with a driven pulley B12 to prevent the belt from meandering. The arrangement of the device A can also be changed.

遊転車1は、図2に示されるように、金属や硬質合成樹脂などの合成材料で円筒状に形成され、プリー軸B3において幅方向Wの両端部にそれぞれベルトB2の内面B21と高さ方向Hや進行方向Lへ対向して一対配設する。遊転車1は、プリー軸B3に対して遊転自在で且つ幅方向Wへ移動不能に支持される。
さらに遊転車1は、ベルト車B1に対して幅方向Wへ片寄ったベルトB2の内面B21と接触する検出面1aと、後述する従動体2との被係合部1bと、を有する。
検出面1aは、遊転車1においてベルト車B1側の外周面に形成され、片寄ったベルトB2における幅方向端部の内面B21と接触して、両者間に発生した摩擦力により遊転車1が全体的に回転(プリー軸B3に対して遊転)するように構成される。
このため、検出面1aとして遊転車1の外周面には、摩擦係数が高く且つ耐摩耗性に優れたコーティング加工又は凹凸加工若しくは粗面加工などを施すことや、摩擦係数が高く且つ耐摩耗性に優れた弾性材料又は剛性材料などを固着することが好ましい。
被係合部1bは、遊転車1において検出面1aを除くベルト車B1と反対側の外周面に形成される。
As shown in FIG. 2, the freewheel 1 is formed in a cylindrical shape with a synthetic material such as metal or a hard synthetic resin, and has a height of an inner surface B21 of a belt B2 at both ends of a pulley shaft B3 in the width direction W, respectively. A pair is arranged so as to face the direction H and the traveling direction L. The freewheeling vehicle 1 is supported so as to be freewheeling with respect to the pulley shaft B3 and immovably in the width direction W.
Further, the idler vehicle 1 has a detection surface 1a that comes into contact with the inner surface B21 of the belt B2 that is offset in the width direction W with respect to the belt vehicle B1 and an engaged portion 1b with a driven body 2 that will be described later.
The detection surface 1a is formed on the outer peripheral surface of the idler vehicle 1 on the belt vehicle B1 side, comes into contact with the inner surface B21 of the widthwise end portion of the offset belt B2, and the idler vehicle 1 is generated by the frictional force generated between the two. Is configured to rotate as a whole (idle with respect to the pulley axis B3).
Therefore, as the detection surface 1a, the outer peripheral surface of the idler 1 is coated with a high friction coefficient and excellent wear resistance, unevenness processing, rough surface processing, or the like, or the friction coefficient is high and wear resistance is high. It is preferable to fix an elastic material or a rigid material having excellent properties.
The engaged portion 1b is formed on the outer peripheral surface of the idler vehicle 1 on the side opposite to the belt vehicle B1 except for the detection surface 1a.

従動体2は、金属や硬質合成樹脂などの合成材料で円筒状に形成され、プリー軸B3において幅方向Wの両端部にそれぞれ遊転車1の外側に一対配設し、プリー軸B3に対して幅方向Wへ往復動自在が且つ回転不能に支持される。
さらに従動体2は、遊転車1との係合により遊転車1の回転運動を幅方向Wへの往復動運動に変える動力伝達部2aと、動力伝達部2aの往復動運動を後述する伝動機構3へ伝える出力部2bと、を有する。
動力伝達部2aは、従動体2において遊転車1の被係合部1bと対向する内側面に、被係合部1bと係合可能に形成される。動力伝達部2aと被係合部1bとの係合は、螺合であることが好ましい。この場合には、被係合部1bが雄螺子で動力伝達部2aが雌螺子で形成される。
出力部2bは、従動体2において動力伝達部2aと反対側の外側面に形成される。
これにより、図1に示されるベルトB2の正常走行状態から図3の矢印で示されるベルトB2の片寄り状態に移行した場合には、図2の二点鎖線に示されるように、ベルトB2の内面B21の幅方向端部が遊転車1の検出面1aと接触することで、遊転車1がプリー軸B3に対し回転する。このため、従動体2が被係合部1bと動力伝達部2aとの係合(螺合)で幅方向Wのいずれか一方へ移動する。
The driven body 2 is formed in a cylindrical shape with a synthetic material such as metal or hard synthetic resin, and a pair of driven bodies 2 are arranged on both ends of the pulley shaft B3 in the width direction W on the outside of the idler 1 and with respect to the pulley shaft B3. It is supported so that it can reciprocate in the width direction W and cannot rotate.
Further, the driven body 2 has a power transmission unit 2a that changes the rotational movement of the freewheeling vehicle 1 into a reciprocating movement in the width direction W by engaging with the freewheeling vehicle 1, and a reciprocating movement of the power transmission unit 2a, which will be described later. It has an output unit 2b that transmits to the transmission mechanism 3.
The power transmission unit 2a is formed on the inner side surface of the driven body 2 facing the engaged portion 1b of the idler vehicle 1 so as to be engaged with the engaged portion 1b. The engagement between the power transmission portion 2a and the engaged portion 1b is preferably screwed. In this case, the engaged portion 1b is formed of a male screw and the power transmission portion 2a is formed of a female screw.
The output unit 2b is formed on the outer surface of the driven body 2 opposite to the power transmission unit 2a.
As a result, when the normal running state of the belt B2 shown in FIG. 1 shifts to the offset state of the belt B2 shown by the arrow in FIG. 3, as shown by the alternate long and short dash line in FIG. 2, the belt B2 When the widthwise end of the inner surface B21 comes into contact with the detection surface 1a of the idler 1, the idler 1 rotates with respect to the pulley shaft B3. Therefore, the driven body 2 moves in either one of the width directions W by engaging (screwing) between the engaged portion 1b and the power transmission portion 2a.

これに加えて、遊転車1の回転に伴い幅方向Wのいずれか一方へ移動した従動体2が元の位置に戻るように復元機構4を備えることが好ましい。
復元機構4の具体例として図1〜図5に示される場合には、コイルばねを遊転車1とプリー軸B3とに亘って弾装している。
また、その他の例として図示しないが、復元機構4としてコイルばねに代え、コイル以外の形状に形成されたばねや弾性部材に変更することも可能である。
これにより、遊転車1の回転に伴い従動体2が幅方向Wのいずれか一方へ移動しても、ベルトB2の内面B21の幅方向端部と遊転車1の検出面1aとの接触が解消した時点で、復元機構4の復元力により遊転車1が逆回転して、従動体2を図1に示されるベルトB2の正常走行状態の元位置に戻す。
In addition to this, it is preferable to provide the restoring mechanism 4 so that the driven body 2 that has moved to either one of the width directions W with the rotation of the idler 1 returns to the original position.
In the case shown in FIGS. 1 to 5 as a specific example of the restoration mechanism 4, a coil spring is mounted over the idler 1 and the pulley shaft B3.
Further, although not shown as another example, the restoring mechanism 4 can be changed to a spring or an elastic member formed in a shape other than the coil instead of the coil spring.
As a result, even if the driven body 2 moves to either one of the width directions W with the rotation of the idler vehicle 1, the contact between the widthwise end portion of the inner surface B21 of the belt B2 and the detection surface 1a of the idler vehicle 1 When the problem is resolved, the restoring force of the restoring mechanism 4 causes the idler vehicle 1 to rotate in the reverse direction, and returns the driven body 2 to the original position of the belt B2 shown in FIG. 1 in the normal traveling state.

伝動機構3は、レバーやアームなどの杆材で構成され、従動体2と後述するベルト修正機構Dとに亘って一対設けられる。
伝動機構3は、従動体2の出力部2bに連結される連係部3aと、後述するベルト修正機構Dに連結される作動部3bと、を有する。
連係部3a及び作動部3bは、複数の杆材同士をジョイントで接続され、出力部2bの幅方向Wへの動きを後述するベルト修正機構Dに伝えるように構成されている。
伝動機構3の具体例として図1〜図5に示される場合には、連係部3aとなる第一レバーの一端を出力部2bに接続し、第一レバーの他端がベルトコンベヤBのフレームB4に軸着される。第一レバーの中間位置に作動部3bとなる第二レバーの一端が幅方向Wへ移動可能に軸着され、第二レバーの他端を第三レバー3cの両端にそれぞれ軸着している。第三レバー3cの中間位置は、後述するベルト修正機構Dの連係アームD2に対し幅方向Wへ移動可能に軸着されている。
これにより、図3の矢印で示されるようにベルトB2が片寄った場合には、従動体2の移動方向へ連係部3aとなる第一レバーの中間位置が揺動し、作動部3bとなる第二レバーを介して第三レバー3cの一端が他端を中心として従動体2の移動方向へ揺動する。これに伴って後述するベルト修正機構Dの連係アームD2が従動体2の移動方向へ動く。
また、その他の例として図示しないが、伝動機構3として図示例以外のリンク機構などに変更することも可能である。
The transmission mechanism 3 is composed of a rod material such as a lever or an arm, and is provided as a pair over the driven body 2 and the belt correction mechanism D described later.
The transmission mechanism 3 has a linking unit 3a connected to the output unit 2b of the driven body 2 and an operating unit 3b connected to the belt correction mechanism D described later.
The linking portion 3a and the operating portion 3b are configured such that a plurality of rod members are connected to each other by a joint and the movement of the output portion 2b in the width direction W is transmitted to the belt correction mechanism D described later.
In the case shown in FIGS. 1 to 5 as a specific example of the transmission mechanism 3, one end of the first lever serving as the linking portion 3a is connected to the output portion 2b, and the other end of the first lever is the frame B4 of the belt conveyor B. It is attached to the shaft. One end of the second lever serving as the operating portion 3b is pivotally attached to the intermediate position of the first lever so as to be movable in the width direction W, and the other end of the second lever is pivotally attached to both ends of the third lever 3c. The intermediate position of the third lever 3c is axially attached to the linking arm D2 of the belt correction mechanism D, which will be described later, so as to be movable in the width direction W.
As a result, when the belt B2 is offset as shown by the arrow in FIG. 3, the intermediate position of the first lever, which is the linking portion 3a, swings in the moving direction of the driven body 2, and becomes the operating portion 3b. One end of the third lever 3c swings around the other end in the moving direction of the driven body 2 via the two levers. Along with this, the linking arm D2 of the belt correction mechanism D, which will be described later, moves in the moving direction of the driven body 2.
Further, although not shown as another example, the transmission mechanism 3 can be changed to a link mechanism other than the illustrated example.

ベルト修正機構Dは、ベルトB2の片寄りに対応してベルト車B1のみ又はプリー軸B3及びベルト車B1のいずれか一方が傾動することで、ベルトB2を片寄った方向と逆向きへ自動的に戻す自動調心(調芯)式のベルト位置維持機構である。
詳しく説明すると、自動調心(調芯)式のベルト修正機構Dは、幅方向Wへ分割されたベルト車B1を一つのプリー軸B3に対して個別に傾動させる分割傾動タイプや、一つのプリー軸B3及びベルト車B1を全体的に傾動させる一括傾動タイプなどがある。
分割傾動タイプとは、特開2019−059597号公報に記載されるように、ベルト車B1として複数の分割ローラーB1aを、プリー軸B3の略全長に亘り幅方向Wへ所定間隔にそれぞれ回転自在に設け、複数の分割ローラーB1aが複数の支点部B1bを中心として傾動自在に支持される。分割傾動タイプの場合には、ベルト修正機構Dとして、複数の分割ローラーB1aをそれぞれ個別に傾動制御する複数の傾動アームD1と、複数の傾動アームD1のすべてを同期して作動させる一つの連係アームD2と、を有する。
また一括傾動タイプとは、実開昭50−049885号公報に記載されるように、プリー軸B3の幅方向W全長に亘って延びる一つのベルト車(蛇行防止ロールや蛇行防止ローラ)が傾動自在に支持される。
The belt correction mechanism D automatically tilts the belt B2 in the direction opposite to the direction in which the belt B2 is biased by tilting only the belt wheel B1 or one of the pulley shaft B3 and the belt wheel B1 in response to the bias of the belt B2. It is a self-aligning (alignment) type belt position maintenance mechanism that returns.
More specifically, the self-aligning (alignment) type belt correction mechanism D includes a split tilt type in which the belt wheel B1 divided in the width direction W is individually tilted with respect to one pulley shaft B3, or one pulley. There is a collective tilt type that tilts the shaft B3 and the belt wheel B1 as a whole.
As described in Japanese Patent Application Laid-Open No. 2019-0559597, the split tilt type means that a plurality of split rollers B1a as a belt wheel B1 can be rotated at predetermined intervals in the width direction W over substantially the entire length of the pulley shaft B3. A plurality of split rollers B1a are provided and supported so as to be tiltable around a plurality of fulcrum portions B1b. In the case of the split tilt type, as the belt correction mechanism D, a plurality of tilt arms D1 that individually tilt control the plurality of split rollers B1a and one linkage arm that synchronously operates all of the plurality of tilt arms D1. It has D2 and.
Further, the collective tilt type means that one belt wheel (meander prevention roll or meander prevention roller) extending over the entire width direction W of the pulley shaft B3 can be tilted freely as described in Japanese Patent Application Laid-Open No. 50-0498885. Supported by.

ベルト修正機構Dの具体例として図1〜図5に示される場合には、分割傾動タイプを用いている。
分割傾動タイプにおける複数の分割ローラーB1aは、複数の支点部B1bと係合して傾動自在に支持される内側筒部B1a′と、内側筒部B1a′に対して回転自在に取り付けられる外側筒部B1a″との二重構造に構成される。
分割傾動タイプにおけるプリー軸B3の軸方向(幅方向W)の末端は、フレームB4に対して軸受部B5で回転不能に固定される。プリー軸B3には、複数の支点部B1bが幅方向Wへ所定間隔に配置され、複数の支点部B1bには、プリー軸B3から高さ方向Hへ突出する支軸B1cが設けられる。
複数の分割ローラーB1aは、内側筒部B1a′の平滑内面を複数の支点部B1bの凸状外面に当接させるとともに、内側筒部B1a′の中心部が複数の支軸B1cと回転自在に連結されることにより、複数の支軸B1cを中心として進行方向Lへ傾動可能に組み付けられている。
さらに、複数の分割ローラーB1aの内側筒部B1a′において幅方向Wへ露出する側面には、複数の傾動アームD1の二股状端部がそれぞれ連結される。複数の傾動アームD1の反対側端部は、一つの連係アームD2にそれぞれ軸着されている。
これにより、図3の矢印で示されるようにベルトB2が片寄った場合には、ベルト修正機構Dの連係アームD2が従動体2の移動方向へ動くと、複数の傾動アームD1を介して複数の分割ローラーB1aのすべてが複数の支点部B1bを中心として従動体2の移動方向へそれぞれ同期して傾動する。
When shown in FIGS. 1 to 5 as a specific example of the belt correction mechanism D, the split tilt type is used.
The plurality of split rollers B1a in the split tilt type have an inner cylinder portion B1a'that is rotatably supported by engaging with a plurality of fulcrum portions B1b and an outer cylinder portion that is rotatably attached to the inner cylinder portion B1a'. It has a double structure with B1a ".
The end in the axial direction (width direction W) of the pulley shaft B3 in the split tilt type is fixed to the frame B4 by the bearing portion B5 so as not to rotate. A plurality of fulcrum portions B1b are arranged at predetermined intervals in the width direction W on the pulley shaft B3, and a fulcrum shaft B1c projecting from the pulley shaft B3 in the height direction H is provided on the plurality of fulcrum portions B1b.
The plurality of split rollers B1a bring the smooth inner surface of the inner cylinder portion B1a'in contact with the convex outer surface of the plurality of fulcrum portions B1b, and the central portion of the inner cylinder portion B1a' is rotatably connected to the plurality of support shafts B1c. As a result, the plurality of support shafts B1c are assembled so as to be tiltable in the traveling direction L.
Further, bifurcated ends of the plurality of tilting arms D1 are connected to the side surfaces of the inner tubular portions B1a'of the plurality of split rollers B1a exposed in the width direction W. The opposite end portions of the plurality of tilting arms D1 are pivotally attached to one linking arm D2, respectively.
As a result, when the belt B2 is offset as shown by the arrow in FIG. 3, when the linking arm D2 of the belt correction mechanism D moves in the moving direction of the driven body 2, a plurality of tilting arms D1 are used. All of the dividing rollers B1a tilt in synchronization with the moving direction of the driven body 2 about the plurality of fulcrum portions B1b.

そして、本発明の実施形態に係るベルト蛇行防止装置A及びベルト蛇行検出器Cを用いたベルト蛇行防止方法は、片寄ったベルトB2と遊転車1の接触でベルトB2の片寄りを検出する検出工程と、遊転車1の回転運動を幅方向Wへの往復動運動に変える動力伝達工程と、従動体2の移動量に基づいてベルト修正機構Dを動かすベルト修正工程と、を主要な工程として含んでいる。
検出工程は、ベルト車B1に対して片寄ったベルトB2の内面B21の幅方向端部が、遊転車1の検出面1aに接触することにより、両者間の摩擦力で遊転車1が回転して、ベルトB2の片寄り方向及び片寄り量が検出される。
動力伝達工程は、遊転車1が回転した分だけ従動体2の動力伝達部2aを幅方向Wへ移動して伝動機構3に伝える。
ベルト修正工程は、伝動機構3から伝えられた従動体2の幅方向Wへの移動量に基づいてベルト車B1のみ又はプリー軸B3及びベルト車B1のいずれか一方を傾動させる。これにより、ベルトB2を片寄った方向と逆向きへ自動的に戻す。
The belt serpentine prevention method using the belt serpentine prevention device A and the belt serpentine detector C according to the embodiment of the present invention detects the offset of the belt B2 by the contact between the offset belt B2 and the idler vehicle 1. The main steps are a step, a power transmission step of changing the rotational motion of the idler vehicle 1 into a reciprocating motion in the width direction W, and a belt correction step of moving the belt correction mechanism D based on the amount of movement of the driven body 2. Included as.
In the detection step, the widthwise end of the inner surface B21 of the belt B2, which is offset from the belt vehicle B1, comes into contact with the detection surface 1a of the idler 1, so that the idler 1 rotates due to the frictional force between the two. Then, the offset direction and the offset amount of the belt B2 are detected.
In the power transmission step, the power transmission unit 2a of the driven body 2 is moved in the width direction W by the amount of rotation of the idler vehicle 1 and transmitted to the transmission mechanism 3.
In the belt correction step, only the belt wheel B1 or either the pulley shaft B3 or the belt wheel B1 is tilted based on the amount of movement of the driven body 2 in the width direction W transmitted from the transmission mechanism 3. As a result, the belt B2 is automatically returned in the direction opposite to the offset direction.

このような本発明の実施形態に係るベルト蛇行防止装置A,ベルト蛇行検出器C,ベルト蛇行防止方法によると、ベルトコンベヤBのベルト車B1に対してベルトB2が(幅方向Wに)片寄って、ベルトB2の内面B21(幅方向端部)が遊転車1の検出面1aと接触する。これら両者間の摩擦力により遊転車1が回転して、遊転車1の回転運動が従動体2の直進運動に変換される。
このため、遊転車1の回転量に対応した分だけ従動体2の動力伝達部2aが(幅方向Wに)移動し、動力伝達部2aの移動量に基づき伝動機構3を介してベルト修正機構Dがプリー軸B3のみやプリー軸B3及びベルト車B1をベルトB2の片寄り方向と逆向きに動かす。
したがって、スチールベルトのように硬質で肉薄なベルトB2であっても、ベルトB2との接触により摩耗し難い機械的なベルト蛇行防止装置Aやベルト蛇行検出器Cやベルト蛇行防止方法を提供することができる。
その結果、ベルト端部がバー又はローラーに当接することでベルトの蛇行を機械的に検出する従来のものに比べ、鋭利なベルト端部と接触しないため、ベルトB2の幅方向端部の内面B21と接触する遊転車1の製品寿命が短時間で摩耗せず大幅に延びて、遊転車1の部品交換を頻繁に行う必要がなくなってメンテナンス性に優れるとともに、稼働率の向上が図れる。
According to the belt meandering prevention device A, the belt meandering detector C, and the belt meandering prevention method according to the embodiment of the present invention, the belt B2 is offset (in the width direction W) with respect to the belt wheel B1 of the belt conveyor B. , The inner surface B21 (end in the width direction) of the belt B2 comes into contact with the detection surface 1a of the idler vehicle 1. The freewheeling vehicle 1 rotates due to the frictional force between the two, and the rotational movement of the freewheeling vehicle 1 is converted into a straight-ahead motion of the driven body 2.
Therefore, the power transmission unit 2a of the driven body 2 moves (in the width direction W) by the amount corresponding to the rotation amount of the idler vehicle 1, and the belt is corrected via the transmission mechanism 3 based on the movement amount of the power transmission unit 2a. The mechanism D moves only the pulley shaft B3, the pulley shaft B3, and the belt wheel B1 in the direction opposite to the offset direction of the belt B2.
Therefore, to provide a mechanical belt meandering prevention device A, a belt meandering detector C, and a belt meandering prevention method that are hard to be worn by contact with the belt B2 even if the belt B2 is hard and thin like a steel belt. Can be done.
As a result, the inner surface B21 of the widthwise end of the belt B2 does not come into contact with the sharp belt end as compared with the conventional one that mechanically detects the meandering of the belt by contacting the belt end with the bar or roller. The product life of the idler vehicle 1 that comes into contact with the belt is significantly extended without being worn in a short time, and it is not necessary to frequently replace parts of the idler vehicle 1, which is excellent in maintainability and can improve the operating rate.

特に、遊転車1と従動体2との係合が螺合であることが好ましい。
この場合には、遊転車1の回転に対応して従動体2がスムーズに(幅方向Wへ)移動する。
したがって、簡単な構造でベルトB2との接触により摩耗し難い機械的なベルト蛇行防止装置Aやベルト蛇行検出器Cやベルト蛇行防止方法を提供することができる。
その結果、簡素化によるコストの低減化が図れる。
In particular, it is preferable that the idler 1 and the driven body 2 are engaged with each other by screwing.
In this case, the driven body 2 moves smoothly (in the width direction W) in response to the rotation of the idler vehicle 1.
Therefore, it is possible to provide a mechanical belt meandering prevention device A, a belt meandering detector C, and a belt meandering prevention method that have a simple structure and are not easily worn by contact with the belt B2.
As a result, the cost can be reduced by simplification.

なお、前示の実施形態において図示例では、ベルト修正機構Dとして分割傾動タイプのベルト車B1を用いたが、これに限定されず、一括傾動タイプとなるプリー軸B3の幅方向W全長に亘って延びた一つのベルト車(蛇行防止ロールや蛇行防止ローラ)を傾動自在に支持してもよい。
この場合も、実開昭50−049885号公報に記載される蛇行防止ロールの取付台に対して、伝動機構3の作動部3bを連係させるか、又は蛇行防止ローラのシャフトに対して、伝動機構3の作動部3bを連係させることにより、分割傾動タイプと同様に蛇行防止ロールや蛇行防止ローラを傾動させて、ベルトB2が片寄った方向と逆向きへ自動的に戻る。
In the illustrated example in the above-described embodiment, the split tilt type belt wheel B1 is used as the belt correction mechanism D, but the present invention is not limited to this, and the entire length W in the width direction of the pulley shaft B3, which is a collective tilt type, is used. A single belt wheel (a meandering prevention roll or a meandering prevention roller) may be slidably supported.
In this case as well, the actuating portion 3b of the transmission mechanism 3 is linked to the mounting base of the meandering prevention roll described in Japanese Patent Application Laid-Open No. 50-049885, or the transmission mechanism is connected to the shaft of the meandering prevention roller. By linking the actuating portion 3b of 3, the meandering prevention roll and the meandering prevention roller are tilted as in the split tilt type, and the belt B2 automatically returns in the direction opposite to the biased direction.

A ベルト蛇行防止装置 B ベルトコンベヤ
B1 ベルト車 B2 ベルト
B21 内面 B3 プリー軸
C ベルト蛇行検出器 1 遊転車
1a 検出面 2 従動体
2b 出力部 3 伝動機構
3b 作動部 D ベルト修正機構
A Belt serpentine prevention device B Belt conveyor B1 Belt conveyor B2 Belt B21 Inner surface B3 Pre-axis C Belt serpentine detector 1 Freewheeling vehicle 1a Detection surface 2 Driven body 2b Output unit 3 Transmission mechanism 3b Acting unit D Belt correction mechanism

Claims (4)

ベルトコンベヤのベルト車に対するベルトの片寄りを検出して自動修正するベルト蛇行防止装置であって、
前記ベルトコンベヤのプリー軸に対して回転自在に設けられる遊転車と、
前記遊転車と係合して前記プリー軸の軸方向へ往復動自在に設けられる従動体と、
前記従動体と連係して前記プリー軸の軸方向へ往復動自在に設けられる伝動機構と、
前記伝動機構の移動量に基づいて前記ベルト車のみ又は前記プリー軸及び前記ベルト車のいずれか一方を動かすベルト修正機構と、を備え、
前記遊転車は、前記ベルト車に対して片寄った前記ベルトの内面と接触する検出面を有し、
前記従動体は、前記遊転車の回転を前記プリー軸の軸方向への往復動に変えて前記伝動機構へ伝える出力部を有し、
前記伝動機構は、前記出力部の移動量に基づいて前記ベルト修正機構を動かす作動部を有することを特徴とするベルト蛇行防止装置。
It is a belt meandering prevention device that detects and automatically corrects the deviation of the belt with respect to the belt wheel of the belt conveyor.
A freewheeling vehicle rotatably provided with respect to the pulley shaft of the belt conveyor, and
A driven body that engages with the freewheeling vehicle and is provided so as to reciprocate in the axial direction of the pulley shaft.
A transmission mechanism provided in cooperation with the driven body so as to reciprocate in the axial direction of the pulley shaft,
A belt correction mechanism for moving only the belt wheel or one of the pulley shaft and the belt wheel based on the movement amount of the transmission mechanism is provided.
The idler has a detection surface that comes into contact with the inner surface of the belt that is offset from the belt wheel.
The driven body has an output unit that converts the rotation of the idler vehicle into a reciprocating motion of the pulley shaft in the axial direction and transmits the rotation to the transmission mechanism.
The transmission mechanism is a belt meandering prevention device characterized by having an operating unit that moves the belt correction mechanism based on the amount of movement of the output unit.
前記遊転車と前記従動体との係合が螺合であることを特徴とする請求項1記載のベルト蛇行防止装置。 The belt meandering prevention device according to claim 1, wherein the idle vehicle and the driven body are engaged with each other by screwing. ベルトコンベヤのベルト車に対するベルトの片寄りを自動修正するために前記ベルトの片寄りを検出するベルト蛇行検出器であって、
前記ベルトコンベヤのプリー軸に対して回転自在で且つ前記ベルトコンベヤの内面と対向するように設けられる遊転車と、
前記遊転車と係合して前記プリー軸の軸方向へ往復動自在に設けられる従動体と、
前記従動体と連係して前記プリー軸の軸方向へ往復動自在に設けられる伝動機構と、を備え、
前記遊転車は、前記ベルト車に対して片寄った前記ベルトの内面と接触する検出面を有し、
前記従動体は、前記遊転車の回転を前記プリー軸の軸方向への往復動に変えて前記伝動機構へ伝える出力部を有し、
前記伝動機構は、前記出力部の移動量に基づいて前記ベルト車のみ又は前記プリー軸及び前記ベルト車のいずれか一方を動かす作動部を有することを特徴とするベルト蛇行検出器。
A belt meandering detector that detects the deviation of the belt in order to automatically correct the deviation of the belt with respect to the belt wheel of the belt conveyor.
A freewheeling vehicle that is rotatable with respect to the pulley shaft of the belt conveyor and is provided so as to face the inner surface of the belt conveyor.
A driven body that engages with the freewheeling vehicle and is provided so as to reciprocate in the axial direction of the pulley shaft.
It is provided with a transmission mechanism provided so as to reciprocate in the axial direction of the pulley shaft in cooperation with the driven body.
The idler has a detection surface that comes into contact with the inner surface of the belt that is offset from the belt wheel.
The driven body has an output unit that converts the rotation of the idler vehicle into a reciprocating motion of the pulley shaft in the axial direction and transmits the rotation to the transmission mechanism.
The transmission mechanism includes a belt meandering detector that moves only the belt wheel or one of the pulley shaft and the belt wheel based on the amount of movement of the output unit.
ベルトコンベヤのベルト車に対するベルトの片寄りを自動修正するベルト蛇行防止方法であって、
前記ベルト車に対して片寄った前記ベルトの内面を、前記ベルトコンベヤのプリー軸に対して回転自在に設けられる遊転車の検出面と接触させることにより、前記ベルトの片寄り方向及び片寄り量を検出する検出工程と、
前記遊転車の回転運動を従動体により前記プリー軸の軸方向への往復動運動に変えて伝動機構に伝える動力伝達工程と、
前記伝動機構を介して前記従動体の移動量に基づいて前記ベルト車のみ又は前記プリー軸及び前記ベルト車のいずれか一方を動かすベルト修正工程と、を含むことを特徴とするベルト蛇行防止方法。
It is a belt meandering prevention method that automatically corrects the deviation of the belt with respect to the belt wheel of the belt conveyor.
By bringing the inner surface of the belt, which is offset with respect to the belt wheel, into contact with the detection surface of the idler, which is rotatably provided with respect to the pulley shaft of the belt conveyor, the belt is offset in the offset direction and the offset amount. And the detection process to detect
A power transmission step in which the rotary motion of the freewheeling vehicle is converted into a reciprocating motion in the axial direction of the pulley shaft by a driven body and transmitted to the transmission mechanism.
A method for preventing belt meandering, which comprises a belt correction step of moving only the belt wheel or one of the pulley shaft and the belt wheel based on the amount of movement of the driven body via the transmission mechanism.
JP2019177429A 2019-09-27 2019-09-27 Belt meander prevention device, belt meander detector, and belt meander prevention method Pending JP2021054557A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016057435A (en) * 2014-09-09 2016-04-21 シャープ株式会社 Belt conveyance device and image formation device including the same
JP2019059597A (en) * 2017-09-27 2019-04-18 中村物産株式会社 Belt meander preventing device and belt meander preventing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016057435A (en) * 2014-09-09 2016-04-21 シャープ株式会社 Belt conveyance device and image formation device including the same
JP2019059597A (en) * 2017-09-27 2019-04-18 中村物産株式会社 Belt meander preventing device and belt meander preventing method

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