JP2006316975A - Flat belt for transmission - Google Patents

Flat belt for transmission Download PDF

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JP2006316975A
JP2006316975A JP2005142871A JP2005142871A JP2006316975A JP 2006316975 A JP2006316975 A JP 2006316975A JP 2005142871 A JP2005142871 A JP 2005142871A JP 2005142871 A JP2005142871 A JP 2005142871A JP 2006316975 A JP2006316975 A JP 2006316975A
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rubber layer
cover rubber
belt
pulley
transmission
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JP4693154B2 (en
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Takeru Takahashi
長 高橋
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Bando Chemical Industries Ltd
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Bando Chemical Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat belt for transmission capable of preventing an inner peripheral side of the belt from being damaged due to wear caused by transmission of friction of the belt and a pulley and improving service life of the whole belt. <P>SOLUTION: This flat belt for transmission is provided with a first cover rubber layer and a second cover rubber layer formed on the opposite face to the first cover rubber layer and is stretched around between a driving pulley and a driven pulley for use. Thickness of the first cover rubber layer is set to be larger than thickness of the second cover rubber layer. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、伝動用平ベルトに関し、特に、複数の軸に屈曲するように掛け渡され、両面駆動に使用可能な伝動用平ベルトに関する。   The present invention relates to a transmission flat belt, and more particularly to a transmission flat belt that is wound around a plurality of shafts and can be used for double-sided driving.

伝動ベルトには、Ｖリブドベルト、平ベルトなどがあり、それらは、自動車、一般産業機械、電気、ＯＡ機器など種々の用途に使用されている。   Examples of the transmission belt include a V-ribbed belt and a flat belt, which are used in various applications such as automobiles, general industrial machines, electricity, and OA equipment.

Ｖリブドベルトは、ベルト内面の長手方向に対して垂直方向に複数のリブ溝を形成し、該リブ溝にそれぞれ係合するように設けられたリブ部を有する軸（プーリ）に巻き掛けられて、該プーリとの間で高い動力が伝動されるようにしたものである。   The V-ribbed belt is formed by forming a plurality of rib grooves in a direction perpendicular to the longitudinal direction of the inner surface of the belt, and wound around a shaft (pulley) having rib portions provided so as to engage with the rib grooves, High power is transmitted between the pulleys.

それに対し、平ベルトは、ベルトの内面及び外面に同じ材料からなるゴムが接着され、何れの面も平面に形成されているので、複数のプーリにベルトの内面及び外面を接するように掛け渡すことができるため、プーリの数が多く配置が複雑である場合に使い勝手が良い。また、平ベルトは、Ｖリブドベルトのように、リブ溝が形成されていないので、当該ベルトを掛け渡すプーリにもリブ部が不要で、安価である。   On the other hand, since the rubber made of the same material is bonded to the inner surface and the outer surface of the belt and both surfaces are formed to be flat, the flat belt is wound around the pulleys so that the inner surface and the outer surface of the belt are in contact with each other. Therefore, it is easy to use when the number of pulleys is large and the arrangement is complicated. Further, unlike the V-ribbed belt, the flat belt is not formed with a rib groove, so that a rib portion is not required for a pulley that hangs the belt, and is inexpensive.

このような伝動用平ベルトを車載エンジン用として使用した場合の一般的な全体構成の概略図を図２に示す。図２に示すように、伝動用平ベルト１０は、クランクプーリ２１から時計回りに、テンションプーリ３１，オルタネータプーリ２２，２３、オイルポンププーリ２４、アイドラプーリ３２，パワステプーリ２５，アイドラプーリ３３，エアコンプーリ２６及びウォータポンププーリ３４の各軸上に掛け渡されている。   FIG. 2 shows a schematic diagram of a general overall configuration when such a transmission flat belt is used for an in-vehicle engine. As shown in FIG. 2, the transmission flat belt 10 includes a tension pulley 31, alternator pulleys 22 and 23, an oil pump pulley 24, an idler pulley 32, a power steering pulley 25, an idler pulley 33, and an air conditioner in a clockwise direction from the crank pulley 21. The pulley 26 and the water pump pulley 34 are stretched over the shafts.

クランクプーリ２１は、車載エンジンの出力軸であるクランク軸上に取り付けられ、所定の回転力をもって、時計回り方向に回転している。テンションプーリ３１は、伝動用平ベルト１０の張力を調整するオートテンショナに設けられている。オルタネータプーリ２２，２３はオルタネータの入力軸に取り付けられている。オイルポンププーリ２４は、オイルポンプの入力軸に取り付けられている。パワステプーリ２５は、自動車のパワーステアリング装置用ポンプの入力軸に取り付けられている。エアコンプーリ２６は、自動車のエアコン用コンプレッサの入力軸に取り付けられている。ウォータポンププーリ３４は、ウォータポンプの入力軸に取り付けられている。   The crank pulley 21 is mounted on a crankshaft that is an output shaft of the vehicle-mounted engine, and rotates clockwise with a predetermined rotational force. The tension pulley 31 is provided in an auto tensioner that adjusts the tension of the transmission flat belt 10. Alternator pulleys 22 and 23 are attached to the input shaft of the alternator. The oil pump pulley 24 is attached to the input shaft of the oil pump. The power steering pulley 25 is attached to an input shaft of a pump for a power steering device of an automobile. The air conditioner pulley 26 is attached to the input shaft of an air conditioner compressor of an automobile. The water pump pulley 34 is attached to the input shaft of the water pump.

上記プーリのうち、クランクプーリ２１は、伝動用平ベルト１０を回動させる駆動プーリである。また、オルタネータプーリ２２，２３、オイルポンププーリ２４、パワステプーリ２５、エアコンプーリ２６及びウォータポンププーリ３４は、クランクプーリ２１により回動された伝動用平ベルト１０の回転力を受けて、それぞれの入力軸に動力を伝える従動プーリである。   Among the pulleys, the crank pulley 21 is a driving pulley that rotates the transmission flat belt 10. Further, the alternator pulleys 22, 23, the oil pump pulley 24, the power steering pulley 25, the air conditioner pulley 26, and the water pump pulley 34 receive the rotational force of the transmission flat belt 10 rotated by the crank pulley 21, and receive the respective inputs. A driven pulley that transmits power to the shaft.

このように、伝動用平ベルト１０はテンションプーリ３１により引っ張られて巻き付けられているので、全体的に引っ張り応力を受けている。また、伝動用平ベルト１０は、各プーリによって内側又は外側に曲げられているので、ベルトが伝動されると、各プーリを経由して動くベルトの内面及び外面は圧縮と伸長とが繰り返されることとなる。よって従来の平ベルトは、その表裏両面が、引っ張り応力と伸縮とに耐えうるような同一特性を備えたものとして構成されていた。   Thus, since the transmission flat belt 10 is pulled and wound around the tension pulley 31, it receives overall tensile stress. Further, since the transmission flat belt 10 is bent inward or outward by each pulley, when the belt is transmitted, the inner and outer surfaces of the belt moving through each pulley are repeatedly compressed and extended. It becomes. Therefore, the conventional flat belt is configured such that both front and back surfaces have the same characteristics that can withstand tensile stress and expansion and contraction.

しかしながら、図２に示すような多軸のレイアウトに使用された平ベルトは、ベルト面が摩耗により破損しやすく、一方のベルト面が十分使用に耐え得る強度を保持しているにもかかわらず、ベルト全体としては使用することができないという問題が生じていた。   However, the flat belt used in the multi-axis layout as shown in FIG. 2 is apt to be damaged due to wear of the belt surface, and even though one belt surface has sufficient strength to withstand use, There has been a problem that the belt as a whole cannot be used.

本発明は、上記問題を鑑みてなされたもので、ベルトとプーリとの摩擦伝動によって発生する摩耗により、ベルト内周側が破損することを防止し、ひいては、ベルト全体の寿命を向上させるようにした伝動用平ベルトを提供することを課題とする。   The present invention has been made in view of the above problems, and prevents damage to the inner peripheral side of the belt due to wear generated by frictional transmission between the belt and the pulley, thereby improving the life of the entire belt. An object is to provide a transmission flat belt.

上記の問題で解決すべく、本発明者らが鋭意検討したところ、同一の特性が要求されるように思われる多軸のレイアウトにおいても、そのプーリの配置によってベルトの表裏両面に求められる特性が異なることを見出した。   In order to solve the above problem, the present inventors diligently studied, and even in a multi-axis layout where the same characteristics seem to be required, the characteristics required on both the front and back sides of the belt by the arrangement of the pulleys. I found something different.

即ち、本発明に係る伝動用平ベルトは、第一のカバーゴム層と、該第一のカバーゴム層の反対面に形成された第二のカバーゴム層とを備えてなり、駆動プーリ及び従動プーリの間に掛け回されて使用される伝動用平ベルトであって、前記第一のカバーゴム層を前記第二のカバーゴム層よりも層の厚みを厚くすることを特徴とする。   That is, the transmission flat belt according to the present invention includes a first cover rubber layer and a second cover rubber layer formed on the opposite surface of the first cover rubber layer, and includes a drive pulley and a driven pulley. A transmission flat belt that is used by being wound around a pulley, wherein the first cover rubber layer is thicker than the second cover rubber layer.

上記伝動用平ベルトによれば、第一のカバーゴム層の厚みを厚くするようにしたので、ベルトがプーリとの摩擦伝動によって発生する摩耗により、第一のカバーゴム層が破損することを防止し、ひいては、ベルト全体の寿命を向上させることができる。   According to the transmission flat belt, since the thickness of the first cover rubber layer is increased, the first cover rubber layer is prevented from being damaged due to wear caused by friction transmission of the belt with the pulley. As a result, the life of the entire belt can be improved.

本発明に係る伝動用平ベルトは、伝動を受けやすい面の層を、他方の層よりも厚くするようにしたので、ベルトとプーリとの摩擦伝動によって発生する摩耗により、ベルト面が破損することを防止し、ひいては、ベルト全体の寿命を向上させることができる。   In the transmission flat belt according to the present invention, the surface layer that is susceptible to transmission is made thicker than the other layer, so that the belt surface is damaged by wear generated by frictional transmission between the belt and the pulley. This can improve the life of the entire belt.

以下、本発明の一実施形態について図面を参酌しつつ説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

＜実施形態＞
図１は、本発明の実施形態に係る伝動用平ベルトの部分断面図である。
図１に示すように、伝動用平ベルト１０は、ベルトの長手方向に複数の心線１１が埋設された接着ゴム層１２と、該接着ゴム層１２の外面に沿って接着された外カバーゴム層１４（第二のカバーゴム層）と、接着ゴム層１２の内面に沿って接着された内カバーゴム層１３（第一のカバーゴム層）とが層状に積層されて構成されている。 <Embodiment>
FIG. 1 is a partial cross-sectional view of a transmission flat belt according to an embodiment of the present invention.
As shown in FIG. 1, the transmission flat belt 10 includes an adhesive rubber layer 12 in which a plurality of core wires 11 are embedded in the longitudinal direction of the belt, and an outer cover rubber bonded along the outer surface of the adhesive rubber layer 12. The layer 14 (second cover rubber layer) and the inner cover rubber layer 13 (first cover rubber layer) bonded along the inner surface of the adhesive rubber layer 12 are laminated in layers.

このように構成された伝動用平ベルト１０の製造方法を以下に説明する。まず、外カバーゴム層１４，内カバーゴム層１３及び一対の層からなる接着ゴム層１２の各層をそれぞれ帯状に形成する。そして、内カバーゴム層１３の上面に一方の接着ゴム層１２を配置し、その上面に複数の心線１１をベルトの長手方向に等間隔に配置し、その上面に他方の接着ゴム層１２を配置する。そして、他方の接着ゴム層１２の上面に外カバーゴム層１４を配置する。次いで、プレスにて加圧加熱して、心線１１を埋設した接着ゴム層１２と、外カバーゴム層１４と、内カバーゴム層１３とを一体的に接着させる。このようにして、本発明に係る伝動用平ベルト１０を作製することができる。   A method for manufacturing the transmission flat belt 10 thus configured will be described below. First, each layer of the outer cover rubber layer 14, the inner cover rubber layer 13, and the adhesive rubber layer 12 including a pair of layers is formed in a band shape. Then, one adhesive rubber layer 12 is arranged on the upper surface of the inner cover rubber layer 13, a plurality of core wires 11 are arranged on the upper surface at equal intervals in the longitudinal direction of the belt, and the other adhesive rubber layer 12 is arranged on the upper surface. Deploy. Then, the outer cover rubber layer 14 is disposed on the upper surface of the other adhesive rubber layer 12. Subsequently, the adhesive rubber layer 12 in which the core wire 11 is embedded, the outer cover rubber layer 14, and the inner cover rubber layer 13 are integrally bonded by pressing and heating with a press. In this way, the transmission flat belt 10 according to the present invention can be manufactured.

本発明の伝動用平ベルトは、内カバーゴム層１３及び外カバーゴム層１４の両面が多軸に掛け渡されたときに、伝動を受けやすい面のカバーゴム層の厚みを厚くするようにしている。   In the transmission flat belt of the present invention, when both the inner cover rubber layer 13 and the outer cover rubber layer 14 are stretched across multiple axes, the thickness of the cover rubber layer on the surface that is susceptible to transmission is increased. Yes.

すなわち、一般的な多軸の伝動装置では、図２に示すように、内カバーゴム層１３がプーリと接している場合が多いので、内カバーゴム層１３の厚みｂが、外カバーゴム層１４の厚みａよりも層の厚みを厚くする（ｂ＞ａ）ことが好ましい。なお、外カバーゴム層１４の層の厚みａに対する内カバーゴム層１３の層の厚みｂの比率（ｂ／ａ）については、補機プーリ（クランクプーリ２１以外のプーリ）の個数で負荷、プーリの状態に大きく左右されるため一概にはいえないが、好ましくは、１．２〜７であり、より好ましくは、３〜５である。カバーゴム層の厚みの比率（ｂ／ａ）が１．２未満であると、内カバーゴム層１３が摩擦伝動により、摩耗してすぐに破損してしまうこととなる。一方、カバーゴム層の厚みの比率（ｂ／ａ）が７を超えると、内カバーゴム層１３の厚みが厚くなりすぎて、内カバーゴム層１３が摩耗寿命に至るまでの期間が、外カバーゴム層１４よりも長期に及び、伝動用平ベルト全体の寿命期間のバランスが悪くなる。   That is, in a general multi-shaft transmission, as shown in FIG. 2, the inner cover rubber layer 13 is often in contact with the pulley, and therefore the thickness b of the inner cover rubber layer 13 is set to the outer cover rubber layer 14. It is preferable to make the layer thickness thicker than the thickness a (b> a). The ratio (b / a) of the thickness b of the inner cover rubber layer 13 to the thickness a of the outer cover rubber layer 14 is determined by the number of auxiliary pulleys (pulleys other than the crank pulley 21), However, it is preferably 1.2 to 7, and more preferably 3 to 5. If the ratio (b / a) of the thickness of the cover rubber layer is less than 1.2, the inner cover rubber layer 13 will be worn away and immediately damaged due to frictional transmission. On the other hand, if the ratio (b / a) of the thickness of the cover rubber layer exceeds 7, the thickness of the inner cover rubber layer 13 becomes too thick, and the period until the inner cover rubber layer 13 reaches the wear life is the outer cover. The balance of the lifetime of the entire transmission flat belt is worse than that of the rubber layer 14.

ここで、上記心線１１の材料としては、特に限定されるものではないが、ポリエチレンテレフタレート繊維、アラミド繊維、ポリアミド繊維、ポリエチレンナフタレート繊維、高強度ポリビニルアルコール繊維などが挙げられる。   Here, the material of the core wire 11 is not particularly limited, and examples thereof include polyethylene terephthalate fiber, aramid fiber, polyamide fiber, polyethylene naphthalate fiber, and high-strength polyvinyl alcohol fiber.

接着ゴム層１２のゴム材料としては、特に限定されるものではないが、クロロプレンゴム（ＣＲ）、エチレンプロピレンジエンモノマー（ＥＰＤＭ）、水素化ニトリルゴム（Ｈ−ＮＢＲ）、アルキル化クロロスルフォン化ポリエチレン（ＡＣＳＭ）などが挙げられ、これらを一種又は二種以上を混合したものを用いることができる。   The rubber material of the adhesive rubber layer 12 is not particularly limited, but chloroprene rubber (CR), ethylene propylene diene monomer (EPDM), hydrogenated nitrile rubber (H-NBR), alkylated chlorosulfonated polyethylene ( ACSM) and the like, and a mixture of one or more of them can be used.

内カバーゴム層１３及び外カバーゴム層１４のゴム材料としては、特に限定されるものではないが、クロロプレンゴム（ＣＲ），エチレンプロピレンジエンモノマー（ＥＰＤＭ），水素化ニトリルゴム（Ｈ−ＮＢＲ）、アルキル化クロロスルフォン化ポリエチレン（ＡＣＳＭ）などが挙げられ、これらを一種又は二種以上を混合したものを用いることができる。   The rubber material of the inner cover rubber layer 13 and the outer cover rubber layer 14 is not particularly limited, but chloroprene rubber (CR), ethylene propylene diene monomer (EPDM), hydrogenated nitrile rubber (H-NBR), Examples thereof include alkylated chlorosulfonated polyethylene (ACSM) and the like, and one or a mixture of two or more thereof can be used.

また、上記内カバーゴム層１３及び外カバーゴム層１４には、上記ゴム材料以外にも、短繊維や充填剤などの添加剤が適宜含有されている。
短繊維としては、ポリエステル短繊維、ポリアミド系短繊維、アラミド短繊維、セルロース短繊維、ビニロン短繊維などの有機高分子繊維や、炭化ケイ素、チタン酸カリウムなどの無機繊維が例示でき、これらを一種又は二種以上を混合したものを用いることができる。
なお、本発明の伝動用平ベルトに含有される短繊維とは、繊維径が５〜４０μｍであり、繊維長が０．１〜１０ｍｍのものをいう。 Further, the inner cover rubber layer 13 and the outer cover rubber layer 14 appropriately contain additives such as short fibers and fillers in addition to the rubber material.
Examples of short fibers include organic polymer fibers such as polyester short fibers, polyamide short fibers, aramid short fibers, cellulose short fibers, and vinylon short fibers, and inorganic fibers such as silicon carbide and potassium titanate. Or what mixed 2 or more types can be used.
In addition, the short fiber contained in the transmission flat belt of the present invention means a fiber having a fiber diameter of 5 to 40 μm and a fiber length of 0.1 to 10 mm.

上記充填剤としては、カーボンブラック、シリカ、炭酸カルシウムなどが挙げられ、これらを一種又は二種以上を混合したものを用いることができる。   Examples of the filler include carbon black, silica, calcium carbonate, and the like, and those in which one or a mixture of two or more thereof can be used.

このように本実施形態に係る伝動用平ベルトによれば、伝動を受けやすい面の層を厚くするようにし、特に、内カバーゴム層１３を外カバーゴム層１４よりも厚くするようにしたので、ベルトとプーリとの摩擦伝動によって発生する摩耗により、ベルト内周側が破損することを防止することができる。さらに、ベルトの表側と裏側を同じ厚みのゴムで形成していたためにプーリから摩擦伝動を受ける面のゴムが摩耗し、他方の面より先に破損することとなってベルト全体が使用できなくなる、という従来の問題を解決することができる。   As described above, according to the transmission flat belt according to the present embodiment, the layer on the surface that is easily subjected to transmission is made thicker, and in particular, the inner cover rubber layer 13 is made thicker than the outer cover rubber layer 14. It is possible to prevent the inner peripheral side of the belt from being damaged due to wear generated by frictional transmission between the belt and the pulley. Furthermore, since the front side and the back side of the belt are formed of rubber of the same thickness, the rubber on the surface that receives frictional transmission from the pulley wears out, and the entire belt cannot be used because it is damaged before the other side. Can solve the conventional problem.

さらに、本発明に係る伝動用平ベルトによれば、内カバーゴム層の厚みを厚く外カバーゴム層の厚みを薄くするようにしたので、内カバーゴム層よりも伸長歪みを受けやすい外カバーゴム層の引っ張り歪みが減少し、ベルト全体の寿命を向上させ得るという効果もある。   Furthermore, according to the transmission flat belt of the present invention, the inner cover rubber layer is made thicker and the outer cover rubber layer is made thinner, so that the outer cover rubber is more susceptible to elongation strain than the inner cover rubber layer. There is also an effect that the tensile strain of the layer is reduced and the life of the entire belt can be improved.

本発明の実施形態に係る伝動用平ベルトの部分断面図を示す。The fragmentary sectional view of the flat belt for transmission concerning the embodiment of the present invention is shown. 伝動用平ベルトを車載エンジン用として使用した場合の全体構成の概略図を示す。The schematic of the whole structure at the time of using a transmission flat belt for vehicle-mounted engines is shown.

符号の説明Explanation of symbols

１０…伝動用平ベルト
１１…心線
１２…接着ゴム層
１３…内カバーゴム層
１４…外カバーゴム層 DESCRIPTION OF SYMBOLS 10 ... Flat belt for transmission 11 ... Core wire 12 ... Adhesive rubber layer 13 ... Inner cover rubber layer 14 ... Outer cover rubber layer

Claims (1)

第一のカバーゴム層と、該第一のカバーゴム層の反対面に形成された第二のカバーゴム層とを備えてなり、駆動プーリ及び従動プーリの間に掛け回されて使用される伝動用平ベルトであって、
前記第一のカバーゴム層を前記第二のカバーゴム層よりも層の厚みを厚くすることを特徴とする伝動用平ベルト。 A power transmission comprising a first cover rubber layer and a second cover rubber layer formed on the opposite surface of the first cover rubber layer, and used by being hung between a driving pulley and a driven pulley. Flat belt for
A transmission flat belt characterized in that the first cover rubber layer is thicker than the second cover rubber layer.
JP2005142871A 2005-05-16 2005-05-16 Transmission flat belt Expired - Fee Related JP4693154B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113124104A (en) * 2020-01-15 2021-07-16 霓达株式会社 Transmission belt

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JPH02143544U (en) * 1989-05-10 1990-12-05
JPH08244935A (en) * 1995-03-10 1996-09-24 Yokohama Rubber Co Ltd:The Warp preventing method for conveyor belt
JPH106087A (en) * 1996-06-27 1998-01-13 Mitsuboshi Belting Ltd Flat belt for press
JPH10279036A (en) * 1997-04-03 1998-10-20 Bando Chem Ind Ltd Conveyor belt

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JPS60112515A (en) * 1983-11-17 1985-06-19 Akebono Brake Ind Co Ltd Drive device in continuous transport system

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JPH02143544U (en) * 1989-05-10 1990-12-05
JPH08244935A (en) * 1995-03-10 1996-09-24 Yokohama Rubber Co Ltd:The Warp preventing method for conveyor belt
JPH106087A (en) * 1996-06-27 1998-01-13 Mitsuboshi Belting Ltd Flat belt for press
JPH10279036A (en) * 1997-04-03 1998-10-20 Bando Chem Ind Ltd Conveyor belt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113124104A (en) * 2020-01-15 2021-07-16 霓达株式会社 Transmission belt
JP2021110443A (en) * 2020-01-15 2021-08-02 ニッタ株式会社 Transmission belt
JP7406996B2 (en) 2020-01-15 2023-12-28 ニッタ株式会社 power transmission belt

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