JPS62274140A - Power transmission device - Google Patents
Power transmission deviceInfo
- Publication number
- JPS62274140A JPS62274140A JP11994186A JP11994186A JPS62274140A JP S62274140 A JPS62274140 A JP S62274140A JP 11994186 A JP11994186 A JP 11994186A JP 11994186 A JP11994186 A JP 11994186A JP S62274140 A JPS62274140 A JP S62274140A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- pulley
- slits
- oil
- power transmission
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 239000003921 oil Substances 0.000 abstract description 28
- 239000010687 lubricating oil Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 10
- 229920001971 elastomer Polymers 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000005060 rubber Substances 0.000 description 7
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 229920000459 Nitrile rubber Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 229920002681 hypalon Polymers 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- -1 ACM Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0456—Lubrication by injection; Injection nozzles or tubes therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0487—Friction gearings
- F16H57/0489—Friction gearings with endless flexible members, e.g. belt CVTs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
【発明の詳細な説明】 ３、発明の詳細な説明 （産業上の利用分野） 本発明は自動車、農業機械、建設機械、船舶。[Detailed description of the invention] 3. Detailed description of the invention (Industrial application field) The present invention is applicable to automobiles, agricultural machinery, construction machinery, and ships.
その他のエンジン駆動、動力伝動用のベルト変速を含む
伝動装置、就中、自動車用■変速動力伝動装置に関する
ものである。The present invention relates to other engine-driven and power transmission transmission devices including a belt speed changer, and in particular, to a variable speed power transmission device for automobiles.
（従来の技術）
近時、自動車用として所謂ＣＶＴ システム（ベルト変
速システム）に関して種々の提案がなされており、なか
でもスチールバンドの上下を金属ブロックで係止した金
属ブロックベルトが使用されているが、これには金属ブ
ロックと金属■プーリの接触による摩耗、騒音を防止し
スムースな駆動を行うべく、ベルトとプーリ間に注油す
るウェット（オイル）方式がとり入れられている。(Prior Art) Recently, various proposals have been made regarding so-called CVT systems (belt transmission systems) for automobiles, and among them, metal block belts in which the upper and lower ends of a steel band are locked with metal blocks have been used. In order to prevent wear and noise caused by contact between the metal block and the metal pulley, and to ensure smooth driving, a wet (oil) system is used to lubricate between the belt and the pulley.
第６図は上述の如き従来方式の１例として従来の変速プ
ーリに■形ブロックベルトを巻掛けた構造を示し、！１
１は固定プーリ片でシャフト（Ｓ）にボルト（４）で固
定されている。又、（２）は可動プーリ片で、シリンダ
ー状を形成してシリンダー支持体（３）で密閉支持され
ており、オイルボート（Ｐ）よりシリンダー（２）内に
注入される油圧によりスプライン（Ｋ）に沿って左右方
向に移動する。FIG. 6 shows a structure in which a ■-shaped block belt is wrapped around a conventional speed change pulley as an example of the conventional system as described above. 1
1 is a fixed pulley piece that is fixed to the shaft (S) with a bolt (4). In addition, (2) is a movable pulley piece that forms a cylinder shape and is hermetically supported by a cylinder support (3), and is connected to a spline (K) by hydraulic pressure injected into the cylinder (2) from an oil boat (P). ) to move left and right.
そして、固定プーリ片（１）ならびに可動プーリ片（２
）の■溝部のベルトとの接触面全体は通常のプーリと同
様に平滑面をなし、このプーリ片（１１、（２）間にＶ
形ブロックベルトが挟持巻装されている。Then, the fixed pulley piece (1) and the movable pulley piece (2
) The entire contact surface of the groove part with the belt is a smooth surface like a normal pulley, and there is a V between this pulley piece (11, (2)
A shaped block belt is wrapped around the belt.
しかし、この方式では変速プーリの溝部は平滑面を有す
る構造であるためベルト走行時、特に高速走行時におい
て、Ｖベルト側面とプーリ溝部との接触面間に油膜を形
成しやすく、ベルトとプーリ間の摩擦係数が低下し、大
きなトルクに対してスリップを生じ易くなり、そのため
、このスリップを防止すべくベルトの張力を７・ノブし
、ベルトとプーリ間の接触部の面圧を大きくする必要が
あった。However, in this system, the groove of the speed change pulley has a structure with a smooth surface, so when the belt is running, especially when running at high speed, an oil film is likely to form between the contact surface between the side surface of the V-belt and the pulley groove, and the gap between the belt and the pulley. The friction coefficient of the belt decreases, making slipping more likely to occur with large torques. Therefore, in order to prevent this slipping, it is necessary to increase the belt tension by increasing the contact pressure between the belt and the pulley. there were.
そこで、ベルトに生ずる張力を大きくすることにより、
それに耐えるべくベルトの強力を大巾にアップさせる必
要が起こり、ベルトのボリュームが必要的に大きくなる
と同時にプーリの軸受部に生ずる負担（負荷）、ベルト
のフリクションによる発熱ロス等、種々の問題が指摘さ
れるに至った。Therefore, by increasing the tension generated in the belt,
In order to withstand this, it became necessary to greatly increase the strength of the belt, and at the same time the volume of the belt became necessary, various problems were pointed out, such as load on the pulley bearings and heat loss due to belt friction. It came to be.
（発明が解決しようとする問題点）
本発明は上述の如き実状に対処し■プーリの■溝面に改
良を加え、これにスリットを設けることによりウェット
方式の走行条件下においてもベルトとブーり間の油膜形
成を防止し大きい摩擦係数を保持せしめんとするもので
ある。(Problems to be Solved by the Invention) The present invention deals with the above-mentioned actual situation by improving the groove surface of the pulley and providing slits in it, so that the belt and boolean can be maintained even under wet running conditions. The purpose is to prevent the formation of an oil film between the two and maintain a large coefficient of friction.
（問題点を解決するための手段）
即ち、本発明の特徴とするところは駆動軸及び従動軸に
夫々Ｖ形変速ブーりを取り付け、該両プーリ間にＶベル
トを巻掛けてなる■変速動力伝動装置において、少なく
とも前記一方のＶ形変速プーリのＶベルトと接触するプ
ーリ■溝面又はＶベルト側面の少なくとも何れかに複数
条のスリットを設け、駆動時において少なくともベルト
に注油しつつ駆動可能ならしめた点にある。(Means for Solving the Problems) That is, the present invention is characterized by: ■V-shaped transmission pulleys are attached to the drive shaft and the driven shaft, respectively, and a V-belt is wound between the two pulleys. In the transmission device, a plurality of slits are provided in at least one of the groove surface of the pulley contacting the V belt of at least one of the V-shaped variable speed pulleys or the side surface of the V belt, and the belt can be driven while at least lubricating the belt during driving. It is at the final point.
ここでプーリとＶベルトが接触する■溝面又はＶベルト
側面のスリットは、■溝面又はベルト側面全面にわたっ
て設けることが好ましく、かつ有効であり、その場合ス
リットの切込み幅、切込み深さ、切込みスリット数、ス
リット形状は実状に即して適宜選定される。Here, it is preferable and effective to provide the slits on the groove surface or the side surface of the V belt where the pulleys and the V belt come into contact with each other. The number of slits and the shape of the slits are appropriately selected depending on the actual situation.
（作 用）
畝上の如き構成からなる本発明動力伝動装置は、ベルト
駆動時にノズルより適宜、オイル（潤滑油）を注加する
ことにより走行時のベルト及びプーリに生ずる熱を吸収
する。(Function) The power transmission device of the present invention, which has a ridge-like configuration, absorbs heat generated in the belt and pulley during running by appropriately injecting oil (lubricating oil) from a nozzle when the belt is driven.
又、回転中に注加されることから、オイルは周囲に飛散
し、その一部が所要だけベルトおよびプーリの接触面に
付着し円滑な走行を可能として前述の問題を解決するに
至る。Furthermore, since the oil is added during rotation, the oil scatters around, and a necessary portion of it adheres to the contact surfaces of the belt and pulley, allowing smooth running and solving the above-mentioned problem.
（実施例）
以下、更に本発明の具体的実施例を添付図面に従って説
明する。(Example) Hereinafter, further specific examples of the present invention will be described with reference to the accompanying drawings.
第１図は本発明装置における■形ブロックベルトを巻装
した変速プーリ例を示し、図において、αυはシャフト
（Ｓ）にボルトＱ４１で固定された固定プーリ片、側は
シリンダー支持体０■と接触しているシリンダ状可動プ
ーリ片でスプライン（Ｋ）によって軸に沿って図の左右
に移動し得るようになっている。Figure 1 shows an example of a speed change pulley wrapped with a ■-shaped block belt in the device of the present invention. In the figure, αυ is a fixed pulley piece fixed to the shaft (S) with bolt Q41, and the side is cylinder support 0 The cylindrical movable pulley pieces that are in contact with each other can be moved from side to side in the figure along the axis by splines (K).
なお、（Ｐ）はオイルポートを示している。Note that (P) indicates an oil port.
しかして、上記変速方式は従来の変速方式と別設、相違
するところはないが、本発明にあってはそのプーリ片、
図では固定プーリ片αυ、可動プーリ片（２）の両ブー
り片共にその■溝側面に本発明の特徴とするオイル流路
を形成する複数条のスリット（切込み溝） （Ｇ）、（
Ｇ）が設けられている。Although the above-mentioned transmission system is separate and different from the conventional transmission system, in the present invention, the pulley pieces,
In the figure, both the fixed pulley piece αυ and the movable pulley piece (2) have multiple slits (cut grooves) (G), (
G) is provided.
第２図、第３図は、夫々、固定プーリ片αυ、可動プー
リ片（２）のベルトとの接触面（Ｖ溝面）における上記
スリットの形状例を示し、第２図では該スリット（Ｇ）
がラジアル状（放射状）に、また第３図では左右のイン
ボリュートカーブを有するスリット（Ｇ）を互いに交差
せしめた変形形状となっている。2 and 3 show examples of the shapes of the slits on the contact surfaces (V groove surfaces) of the fixed pulley piece αυ and the movable pulley piece (2) with the belt, respectively. )
The slits (G) have a radial shape, and in FIG. 3, the slits (G) having left and right involute curves intersect with each other.
勿論、これらのスリット（Ｇ）は、上記形状の外通常の
ローレット状（図示せず）のものでもよく更に他の種々
の形状が考えられるが、オイルを遠心力で放射状に外部
に放出するため第２図の如きラジアル状のスリットを設
けたものは極めて好適である。Of course, these slits (G) may be of the usual knurled shape (not shown) in addition to the above-mentioned shape, and various other shapes are possible, but in order to release the oil radially to the outside by centrifugal force. A device provided with radial slits as shown in FIG. 2 is extremely suitable.
第４図、第５図は上記本発明の動力伝動機構に主として
使用するＶベルトの横断面図で第４図はＶ形ブロックベ
ルト、第５図はロンド入すコグ付■ベルトを示す。第４
図において、（Ｂ）はブロックベルト、（ｆ）は平ベル
トでこの平ベルト（ｆ）の長手方向に沿って上下に直角
定ピツチで、上部ブロック（２５）、下部ブロック（２
６）が配設され、ボルト等の止着材（２７）により締結
固着されている。そして、前記平ベル） （ｆ）はスパ
イラル状の抗張体ロープ（２１）が弾性体（２２）中に
埋設されていて、その上下面には織布帆布（２３） 、
（２４）が被着されている。ここで、上記抗張体ロー
プ（２１）はポリエステル、脂肪族ポリアミド、芳香族
ポリアミド、ガラス繊維、或いはスケールワイヤー等か
ら選ばれた低伸度高強力のロープ抗張体からなり、これ
を被覆する弾性体（２２）はＮＲ（天然ゴム） 、 Ｓ
ＢＲ（スチレン−ブタジェンゴム）、ＣＲ（クロロプレ
ンゴム）。FIGS. 4 and 5 are cross-sectional views of V-belts mainly used in the power transmission mechanism of the present invention. FIG. 4 shows a V-shaped block belt, and FIG. 5 shows a cog-equipped belt into which a rond is inserted. Fourth
In the figure, (B) is a block belt, (f) is a flat belt, which is vertically vertically fixed pitch along the longitudinal direction of this flat belt (f), and has an upper block (25) and a lower block (25).
6) is provided and fastened and fixed by a fastening material (27) such as a bolt. The flat bell (f) is a spiral tensile rope (21) embedded in an elastic body (22), and woven canvas (23) on the upper and lower surfaces thereof.
(24) is attached. Here, the tensile rope (21) is made of a low elongation and high strength rope tensile material selected from polyester, aliphatic polyamide, aromatic polyamide, glass fiber, scale wire, etc. The elastic body (22) is NR (natural rubber), S
BR (styrene-butadiene rubber), CR (chloroprene rubber).
ＮＢＲにトリルゴム”） 、ＩＩＲ（ブチルゴム）、ハ
イパロン（クロルスルフォン化ポリエチレン”） 、
ＥＰＴ 、ＩＩ！ＰＲ、エピクロルヒドリンゴム、 Ａ
ＣＭ（アクリルゴム）、シリコンゴム、 Ｈ−ＮＢＲ，
（水素添加ニトリルゴム）不飽和ポリエステルなどの単
−材又はこれらを適宜ブレンドしたゴム或いはポリウレ
タンなどがあるが、この平ベルト主体を構成する弾性体
には特に耐油性を有するＮＢＲ、ＡＣＭ 、 シリコ
ンゴム。NBR (tolyl rubber), IIR (butyl rubber), Hypalon (chlorosulfonated polyethylene),
EPT, II! PR, epichlorohydrin rubber, A
CM (acrylic rubber), silicone rubber, H-NBR,
(Hydrogenated nitrile rubber) There are single materials such as unsaturated polyester, rubbers made by appropriately blending these materials, polyurethane, etc., but the elastic body that makes up the main body of this flat belt is especially oil-resistant NBR, ACM, silicone rubber. .
ハイパロン、Ｈ−ＮＢＲ不飽和ポリエステルなどが材料
として優れている。一方、この平ベルト（ｆ）を挟持す
る上部及び下部のブロック（２５） 、 （２６）は剛
性の大きな材料、具体的には各種金属、硬度８５″以上
の硬質ゴム、硬質ポリウレタンやフェノール樹脂、エポ
キシ樹脂、ナイロン樹脂、ポリエステル樹脂、アクリル
樹脂、メタアクリル樹脂、ポリイミド樹脂等の各樹脂又
はこれらの樹脂に綿糸。Hypalon, H-NBR unsaturated polyester, etc. are excellent materials. On the other hand, the upper and lower blocks (25) and (26) that sandwich this flat belt (f) are made of highly rigid materials, specifically various metals, hard rubber with a hardness of 85'' or more, hard polyurethane, phenolic resin, etc. Each resin such as epoxy resin, nylon resin, polyester resin, acrylic resin, methacrylic resin, polyimide resin, etc. or cotton thread in these resins.
化学繊維、ガラス繊維、カーボン繊維、金属繊維などの
短繊維群を混入した強化樹脂或いは上記樹脂を含浸させ
た帆布を渦巻状もしくは積層して成形硬化したものなど
からなる。そして、上記ブロック（２５） 、 （２６
）は平ベルトＣｆ’）を挟んでボルトリベット等の止着
材（２７）で貫通され締結固着されている。It is made of reinforced resin mixed with short fibers such as chemical fibers, glass fibers, carbon fibers, and metal fibers, or canvas impregnated with the above resins, which are spirally or laminated and molded and hardened. Then, the above blocks (25) and (26
) is passed through and fastened with a fastening material (27) such as a bolt rivet with a flat belt Cf') in between.
なお、第５図は前記ロープ抗張体（３２）が前記材質の
弾性体よりなる主体ゴム（３３）中に埋設され、この主
体ゴム層（３３）の下面には所定ピッチでベルト幅方向
に延びる同材質の圧縮ゴム（３４）よりコグ群（図では
コグは現れていない）が形成されベルト本体の上面およ
びコグ表面には夫々帆布（３５）。In addition, FIG. 5 shows that the rope tensile body (32) is embedded in the main rubber layer (33) made of an elastic body of the above-mentioned material, and the lower surface of this main rubber layer (33) is provided at a predetermined pitch in the belt width direction. A group of cogs (the cogs are not shown in the figure) is formed by extending compressed rubber (34) made of the same material, and canvas (35) is provided on the top surface of the belt body and the surface of the cog, respectively.
（３６）が被着されており、更に前記コグ部にはベルト
幅方向に延びるパイプ、棒状体或いは板状体からなる金
属製、樹脂製補強材（Ｒ）が埋設されている。(36) is attached, and furthermore, a metal or resin reinforcing material (R) made of a pipe, rod-shaped body, or plate-shaped body extending in the width direction of the belt is embedded in the cog portion.
本発明伝動装置には通常、主として上記の如きＶベルト
が使用されるが、これらに限定するものではなく、横方
向の剛性の大きい高硬度ゴムよりなるＶベルト ■形変
速ベルトも勿論適用可能である。Generally, the transmission device of the present invention mainly uses a V-belt as described above, but it is not limited to these, and a V-belt made of high-hardness rubber with high lateral rigidity.Of course, a variable speed belt in the form of a V-belt made of high-hardness rubber with high lateral rigidity can also be applied. be.
次に、上記溝付ＶプーリとＶベルトとによって構成され
る伝動装置について説明する。Next, a transmission device constituted by the grooved V-pulley and V-belt will be explained.
第７図は本発明伝動装置の１態様を示す概要図で、（Ｄ
ｒ）は■溝両側面に多数のラジアル状スリット（Ｇ）を
設けた駆動変速プーリ、（Ｏｎ）は（Ｄｒ）同様スリッ
トを設けて従動変速プーリで、この両プーリ間に前記第
４図、第５図のような横方向剛性の大きい■形ブロック
ベルト、ロンド大すコグ付■ベルト（Ｂ）が巻掛けられ
ている。ベル） （Ｂ）を矢印方向に駆動し、ベルトの
走行に伴いノズル（Ｎ）よりオイル（主として潤滑油）
を主にベルト背面に、また必要に応じて駆動及び従動プ
ーリの側面に江別する事によって、走行時、ベルト及び
プーリに生ずる熱を吸収するとともに、回転中江別した
るオイルは周囲に飛散し、その一部がベルト及びプーリ
の接触面に付着し滑らかな走行を可能とするが、必要以
上にオイルが付着したとき、プーリ中のベルト底部にオ
イルが溜まるのを前記スリットを通じて遠心力で、オイ
ルを流出する効用を生ずるため、ベルトとプーリの接触
面に残溜オイル量は最少限となり、このように保持する
ことにより油膜を切断しスリップを減少してベルトとプ
ーリ間の摩擦係数を高水準に保持することができる。FIG. 7 is a schematic diagram showing one embodiment of the transmission device of the present invention, (D
r) is a driving speed change pulley with a large number of radial slits (G) on both sides of the groove; (On) is a driven speed change pulley with slits similar to (Dr); As shown in Fig. 5, a ■-shaped block belt with high lateral rigidity and a ■-shaped belt with a large round cog (B) are wrapped around it. (B) is driven in the direction of the arrow, and as the belt runs, oil (mainly lubricating oil) is dispensed from the nozzle (N).
By separating the oil mainly on the back of the belt and, if necessary, on the sides of the driving and driven pulleys, the heat generated in the belt and pulleys during running is absorbed, and the oil that separates during rotation is scattered around. Some of the oil adheres to the contact surfaces of the belt and pulleys, allowing for smooth running. However, when more oil than necessary adheres to the belt, centrifugal force is used to remove the oil that accumulates at the bottom of the belt in the pulleys through the slits. As a result, the amount of residual oil on the contact surface between the belt and pulley is minimized, and by retaining the oil in this way, the oil film is cut, slippage is reduced, and the coefficient of friction between the belt and pulley is maintained at a high level. can be held.
ここで使用するスリット付プーリは上記の如く、駆動変
速プーリ（叶）、従動変速ブー’Ｊ （Ｄｎ）の両プー
リをスリット付プーリで使用するか、或いは（Ｄｒ）、
（Ｄｎ）の何れか一方のみをスリット付プーリにする
か、何れでもよく、更にはスリット付変速プーリと通常
の■プーリ （スリット付、スリットのないもの何れで
もよい）の組合わせでもよい。As for the pulley with slit used here, as mentioned above, both the driving speed change pulley (Kane) and the driven speed change Boo'J (Dn) are used with the slit pulley, or (Dr),
Only one of (Dn) may be a pulley with a slit, or either one may be a pulley with a slit, or a combination of a variable speed pulley with a slit and a normal pulley (with or without a slit) may be used.
又、注油するノズル（Ｎ） 、 （Ｎ）は通常は上記の
如く、プーリの上面からスプレーするが、プーリの下か
らスプレー注入してもよく、或いはプーリ下端部を油槽
中に浸漬してスリットに注油してもよい。In addition, the nozzles (N) and (N) for lubricating are usually used to spray from the top of the pulley as described above, but they may also be sprayed from below the pulley, or the bottom end of the pulley is immersed in an oil bath and the slit is sprayed. You may also lubricate.
又、上記説明においては主としてプーリ側にスリットを
設け、注油することについて述べたが、Ｖベルトのプー
リに接触する側面に垂直方向のスリットを設けても同様
の効果が期待され、これも本発明の意図するところであ
る。In addition, in the above explanation, it has been mainly described that slits are provided on the pulley side to supply oil, but the same effect can be expected by providing vertical slits on the side surface of the V-belt that contacts the pulleys, and this is also achieved by the present invention. This is what is intended.
次に本発明に係る動力伝動装置は使用した状況について
従前の場合と対比説明する。Next, a situation in which the power transmission device according to the present invention is used will be explained in comparison with a conventional case.
本発明の■溝部にオイルを飛散させるためのラジアル状
スリットを設けたプーリの場合と、スリットのない従来
の平滑なプーリの場合とのＶベルトとプーリ間の摩擦係
数の差を第９図に示す方式で行ない、両者を対比したと
ころ第８図のような結果が得られた。Figure 9 shows the difference in the coefficient of friction between the V-belt and the pulley between the pulley of the present invention with radial slits for dispersing oil in the groove and the conventional smooth pulley without slits. When the method shown was used and the two were compared, the results shown in FIG. 8 were obtained.
即ち、第９図はノズル（Ｎ）よりオイルの注入状態でテ
ストするＢ様を示し、切込み幅０．８ｍｍ、切込み深さ
１１１．切込み溝数７２２のラジアル状スリットを有す
る本発明の回転円盤とスリットのない平滑面の夫々の回
転円盤（イ）に対して■形ブロックベル°トと同一材料
（エポキシ樹脂にガラス繊維を混入して補強したＥＲＰ
”）のテストピース（ロ）を荷重（Ｆ）で圧接し、そ
の圧接する荷重を変量することによって、テストピース
の接触面積との関係より面圧を求め、滑り速度０．１５
ｍ／ｓｅｃにおける回転軸に生ずるトルクを求め動摩擦
係数（μ）を測定した。その結果は第８図から明らかな
如く、本発明の■プーリ側面にスリットを設けたものは
、Ｖベルトとプーリ接触面のオイルを完全に飛散放出し
て油膜を除去し、μ＝０．０８〜０．１３位の高摩擦係
数を保持することができ、従来方式の平滑面プーリ （
μ＝０．０５〜０．０６位）に比し小さな面圧及びベル
ト張力で所要の伝達力を発揮し、ベルト及び軸受部の耐
久性を向上すると共に伝〜達力のロスを大幅に低減でき
る顕著な効果があることが判明した。That is, FIG. 9 shows Mr. B testing with oil injected from the nozzle (N), with a cutting width of 0.8 mm and a cutting depth of 111 mm. The rotating disk of the present invention having a radial slit with 722 cutting grooves and the rotating disk with a smooth surface without slits (A) are made of the same material as the ■-shaped block belt (glass fiber mixed with epoxy resin). ERP reinforced with
”) is pressed against the test piece (B) by the load (F), and by varying the pressing load, the surface pressure is determined from the relationship with the contact area of the test piece, and the sliding speed is 0.15.
The torque generated on the rotating shaft in m/sec was determined and the coefficient of dynamic friction (μ) was measured. As is clear from Fig. 8, the results of this invention are as follows: (1) The one in which slits are provided on the side of the pulley completely scatters and releases the oil on the contact surface between the V-belt and the pulley, removing the oil film, and μ = 0.08. It is possible to maintain a high friction coefficient of ~0.13, compared to the conventional smooth surface pulley (
It exhibits the required transmission force with a small surface pressure and belt tension compared to (μ = 0.05 to 0.06), improves the durability of the belt and bearing part, and significantly reduces loss of transmission force. It has been found that there are significant effects.
（発明の効果）
本発明は以上のように■形変速プーリ間にＶベルトを巻
掛けた伝動装置においてそのプーリとＶベルトとの接触
するプーリ■溝面又はＶベルト側面の何れか少なくとも
一方に複数条のスリットを設けたものであり、該接触面
への注油オイルを飛散し、ブーりとベルト間の摩擦係数
を高水準に保持して前記の如く円滑な動力伝動を可能な
らしめ自動車用Ｖベルト伝動装置として今後における実
効性が期待される装置である。(Effects of the Invention) As described above, the present invention provides the following advantages: ■ In a transmission device in which a V-belt is wound between variable speed pulleys, the pulley that contacts the V-belt; It is equipped with multiple slits, which scatters the lubricating oil onto the contact surface, maintains the friction coefficient between the boob and the belt at a high level, and enables smooth power transmission as described above. This is a device that is expected to be effective in the future as a V-belt transmission device.
第１図は本発明装置の１例を示す要部部分側面図、第２
図及び第３図はブーり片のベルトとの接触面における各
スリット形状各側を示す説明図、第４図及び第５図は本
発明装置に使用するＶベルトの各側を示す横断面図、第
６図は従来の動力伝動装置例を示す要部部分側面図、第
７図は本発明伝動装置の使用態様を示す概要図、第８図
は本発明と比較従来例との面圧と摩擦係数の比較図表、
第９図は第８図に示す比較実施における試験態様を示す
斜視図である。
αυ・・・・・・固定プーリ片、
（２）・・・・・・可動プーリ片、
（Ｂ）・・・・・・ベルト、
（Ｇ） ・・・・・・スリット、
（Ｓ）・・・・・・シャフト（軸）。
第４図 諺５０
第６図
８７図
ｆ７１ｆ−に嵯−Fig. 1 is a side view of main parts showing one example of the device of the present invention, Fig.
3 and 3 are explanatory diagrams showing each side of each slit shape at the contact surface of the boob piece with the belt, and FIGS. 4 and 5 are cross-sectional views showing each side of the V-belt used in the device of the present invention. , FIG. 6 is a side view of a main part showing an example of a conventional power transmission device, FIG. 7 is a schematic diagram showing how the transmission device of the present invention is used, and FIG. 8 is a diagram showing the surface pressure of the present invention and a comparative conventional example. Comparison chart of friction coefficient,
FIG. 9 is a perspective view showing a test mode in the comparative implementation shown in FIG. 8. αυ...Fixed pulley piece, (2)...Movable pulley piece, (B)...Belt, (G)...Slit, (S) ...Shaft. Figure 4 Proverb 50 Figure 6 87 Figure f71f-ni-
Claims (1)
、それら両プーリ間にＶベルトを巻掛けた装置において
、少なくとも前記一方の変速プーリとＶベルトとが接触
する変速プーリＶ溝面又はＶベルト側面の少なくとも何
れか一方に複数条のスリットを設け、ベルト駆動時、ベ
ルトに注油しつつ駆動可能ならしめてなることを特徴と
する動力伝動装置。1. In a device in which a V-shaped speed change pulley is attached to a driving shaft and a driven shaft, and a V belt is wound between the two pulleys, the speed change pulley has a V groove surface or V where at least one of the speed change pulleys and the V belt are in contact with each other. A power transmission device characterized in that a plurality of slits are provided on at least one side of the belt so that the belt can be driven while being lubricated when the belt is driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11994186A JPS62274140A (en) | 1986-05-23 | 1986-05-23 | Power transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11994186A JPS62274140A (en) | 1986-05-23 | 1986-05-23 | Power transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62274140A true JPS62274140A (en) | 1987-11-28 |
Family
ID=14773961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11994186A Pending JPS62274140A (en) | 1986-05-23 | 1986-05-23 | Power transmission device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62274140A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01316553A (en) * | 1988-04-22 | 1989-12-21 | Carl Schenck Ag | Method and device for guiding and driving driving belt |
| US6537166B1 (en) * | 1999-02-24 | 2003-03-25 | Zf Getriebe N.V. Sint-Truiden | Transmission unit for motor vehicles, pulley used thereby and method for making such a pulley |
| JP2008303965A (en) * | 2007-06-07 | 2008-12-18 | Nsk Ltd | Toroidal continuously variable transmission and method of manufacturing same |
| US9188206B2 (en) | 2007-06-06 | 2015-11-17 | Nsk Ltd. | Toroidal continuously variable transmission |
-
1986
- 1986-05-23 JP JP11994186A patent/JPS62274140A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01316553A (en) * | 1988-04-22 | 1989-12-21 | Carl Schenck Ag | Method and device for guiding and driving driving belt |
| US6537166B1 (en) * | 1999-02-24 | 2003-03-25 | Zf Getriebe N.V. Sint-Truiden | Transmission unit for motor vehicles, pulley used thereby and method for making such a pulley |
| US9188206B2 (en) | 2007-06-06 | 2015-11-17 | Nsk Ltd. | Toroidal continuously variable transmission |
| JP2008303965A (en) * | 2007-06-07 | 2008-12-18 | Nsk Ltd | Toroidal continuously variable transmission and method of manufacturing same |
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