JPH038824Y2 - - Google Patents
Info
- Publication number
- JPH038824Y2 JPH038824Y2 JP1987027896U JP2789687U JPH038824Y2 JP H038824 Y2 JPH038824 Y2 JP H038824Y2 JP 1987027896 U JP1987027896 U JP 1987027896U JP 2789687 U JP2789687 U JP 2789687U JP H038824 Y2 JPH038824 Y2 JP H038824Y2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- block
- core
- blocks
- tension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000005060 rubber Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910001240 Maraging steel Inorganic materials 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241001124569 Lycaenidae Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
- F16G5/166—V-belts, i.e. belts of tapered cross-section consisting of several parts with non-metallic rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Ropes Or Cables (AREA)
- Belt Conveyors (AREA)
Description
【考案の詳細な説明】
(産業上の利用分野)
本考案は、主として自動車、コンバイン、トラ
クター等の変速装置に用いられるVベルトに関す
る。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a V-belt mainly used in transmission devices of automobiles, combines, tractors, etc.
(従来の技術)
近年、自動車、コンバイン、トラクター等の変
速装置は操作性の向上、燃費の向上等を狙いと
し、ベルト式無段変速装置の開発が進められてい
る。(Prior Art) In recent years, development of belt-type continuously variable transmissions for automobiles, combine harvesters, tractors, etc. has been progressing with the aim of improving operability and fuel efficiency.
この変速装置に使用されるベルトは、極めて高
トルクの伝動能力を必要とするので、従来のゴム
ベルトでは高側圧のため座屈変形を起こし、使用
に耐えない。この点を改良したVベルトとして、
合成繊維或は無機繊維から成るコードを心体とし
たエンドレスの一対の張力帯に、複数のブロツク
をそれら両側部の係合溝を介して係合させ、両側
面をプーリ溝面と適合するほぼ面一の傾斜面とし
たものが提案されている(例えば、特開昭60−
49151号公報参照)。 The belt used in this transmission requires an extremely high torque transmission capacity, and conventional rubber belts buckle and deform due to high lateral pressure, making them unusable. As a V-belt that improves this point,
A plurality of blocks are engaged with a pair of endless tension bands whose core is a cord made of synthetic or inorganic fibers through engagement grooves on both sides of the bands, and both sides are approximately aligned with the pulley groove surface. A flat inclined surface has been proposed (for example, Japanese Patent Application Laid-Open No. 1989-1999).
(See Publication No. 49151).
(考案が解決しようとする課題)
上記従来のVベルトは、屈曲性が良く、高側圧
を受けても座屈変形が無く、又高速度運転に対し
て安全である等優れた特徴を多々有してはいる
が、ブロツクを高強度樹脂や硬質ゴム等の比較的
熱伝導度の低い材料単独で構成した場合、運転
中、張力帯とブロツクとの係合部において発生す
る摩擦熱或は張力帯の繰返し屈曲による熱は蓄熱
され、ブロツク材料や張力帯材料を熱劣化させ耐
久性を損なうと云つた問題を有していた。(Problems to be solved by the invention) The conventional V-belt described above has many excellent features such as good flexibility, no buckling deformation even when subjected to high lateral pressure, and safety in high-speed operation. However, if the block is made of a material with relatively low thermal conductivity such as high-strength resin or hard rubber, the frictional heat or tension generated at the engagement part between the tension band and the block during operation will increase. There has been a problem in that heat due to repeated bending of the band is accumulated, thermally deteriorating the block material and tension band material and impairing their durability.
本考案は、上記従来技術の問題点に鑑みて、張
力帯にマルエージング鋼等の強靭鋼よりなる心体
を具備せしめ、かつ該心体の一部を外部に露出せ
しめることにより、ベルトに発生した熱を上記心
体の露出部分より効率良く放熱させて、ブロツク
や張力帯の熱劣化の影響を軽減して耐久性に優れ
たVベルトを提供すると共に、ベルトの屈曲性を
更に向上してコンパクトな設計を可能にすること
を目的としている。 In view of the above-mentioned problems of the conventional technology, the present invention provides a tension band with a core body made of strong steel such as maraging steel, and exposes a part of the core body to the outside. The generated heat is efficiently radiated from the exposed portion of the core body, reducing the effects of thermal deterioration on blocks and tension bands, providing a V-belt with excellent durability, and further improving the flexibility of the belt. The purpose is to enable a compact design.
(課題を解決するための手段)
上記目的を達成するため、本考案の解決手段
は、エンドレスの一対の張力帯に複数のブロツク
が係合されてなるVベルトを対象とする。上記張
力帯は、マルエージング鋼等の強靭鋼よりなる心
体と、該心体をその長手方向に一定間隔毎に一部
を露出せしめた状態で鋳ぐるむとともに上記ブロ
ツクに係合せしめられるゴム部材とからなる。上
記ブロツクは、上記張力帯の心体露出部分を外部
に露出せしめるよう張力帯に長手方向に一定間隔
をあけて並設されてなるものとする。(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention targets a V-belt in which a plurality of blocks are engaged with a pair of endless tension bands. The tension band includes a core made of strong steel such as maraging steel, and a rubber member that is cast around the core with parts exposed at regular intervals in the longitudinal direction, and is engaged with the block. It consists of. The blocks are arranged in parallel to the tension band at regular intervals in the longitudinal direction so as to expose the core exposed portion of the tension band to the outside.
(作用)
上記手段による作用は、張力帯の心体がマルエ
ージング鋼等の強靭鋼で形成され、かつ該心体の
一部(露出部分)がブロツク間の間隙から外部に
露出しているため、ベルトに発生する熱は上記心
体を経てその露出部分から外部に効率良く放熱さ
れることになり、ブロツクや張力帯の熱劣化の影
響が軽減され耐久性が向上すると共に、張力帯の
心体の強度向上によるその厚みの縮小化、心体の
一部の露出及びそのためのブロツク間に設けた間
隔によりベルトの屈曲性が向上することになる。(Function) The above means works because the core of the tension band is made of strong steel such as maraging steel, and a part (exposed part) of the core is exposed to the outside through the gap between the blocks. The heat generated in the belt is efficiently dissipated to the outside from the exposed portion of the belt through the core body, reducing the effects of thermal deterioration on blocks and tension bands and improving durability. The flexibility of the belt is improved by reducing its thickness by increasing the strength of the body, by exposing a part of the core body, and by providing intervals between the blocks for this purpose.
(実施例)
以下、本考案のVベルトの実施例を図面によつ
て詳細に説明する。(Example) Hereinafter, an example of the V-belt of the present invention will be described in detail with reference to the drawings.
本実施例の変速プーリ用Vベルト1は、一対の
エンドレスの張力帯2,3と、これら張力帯2,
3に長手方向に一定ピツチでかつ一定間隔をあけ
た状態に係止された複数のブロツク4とから構成
されている。 The V-belt 1 for a speed change pulley of this embodiment includes a pair of endless tension bands 2 and 3, and these tension bands 2,
3 and a plurality of blocks 4 which are fixed at a constant pitch and at constant intervals in the longitudinal direction.
張力帯2,3は、各々平帯状の心体9,9と、
これら心体9,9をその長手方向に一定間隔毎に
一部を露出せしめた状態で鋳ぐるみ保持するゴム
部材10,11と、ゴム部材10,11の上面及
び下面に埋設された織布12とから構成されてい
る。張力帯2,3の外側面2a,3aは、ブロツ
ク4の側面4a,4bとほぼ同一勾配の傾斜を有
し、内側面2b,3bは鉛直を成している。外側
面2a,3aは、第2図に示すようにプーリ21
の溝に嵌合し側圧を受けていない状態においては
ブロツク4の側面4a,4bから若干突出してい
るが、第3図に示すようにプーリ21の溝に嵌合
して動力伝達が行われるとそれぞれ圧縮ヤング率
の差によつてブロツク4の側面4a,4bと同一
平面になり、プーリ溝面に接する。 The tension bands 2 and 3 each have a flat band-shaped core body 9 and 9,
Rubber members 10 and 11 hold the core bodies 9 and 9 in a cast-encased manner with parts exposed at regular intervals in the longitudinal direction, and woven fabric 12 embedded in the upper and lower surfaces of the rubber members 10 and 11. It is composed of. The outer surfaces 2a, 3a of the tension bands 2, 3 have approximately the same slope as the side surfaces 4a, 4b of the block 4, and the inner surfaces 2b, 3b are vertical. The outer surfaces 2a and 3a are connected to a pulley 21 as shown in FIG.
When it is fitted into the groove of the pulley 21 and is not receiving lateral pressure, it protrudes slightly from the side surfaces 4a and 4b of the block 4, but as shown in Fig. 3, when it is fitted into the groove of the pulley 21 and power transmission is performed. Due to the difference in compression Young's modulus, they are flush with the side surfaces 4a and 4b of the block 4, and are in contact with the pulley groove surface.
張力帯2,3の心体9,9には、マルエージン
グ鋼等の強靭鋼が使用され、ベルトの引張強度、
熱劣化に対する耐性及び熱伝導性を大幅に向上さ
せている。心体9,9は、その高強度、高剛性に
よつて比較的肉厚の薄い平帯状に形成され、ブロ
ツク4の側圧を受ける面積を増大させている。 Strong steel such as maraging steel is used for the core bodies 9, 9 of the tension bands 2, 3, and the tensile strength of the belt,
It has significantly improved resistance to thermal deterioration and thermal conductivity. The core bodies 9, 9 are formed in the shape of a relatively thin flat strip due to their high strength and high rigidity, increasing the area that receives the lateral pressure of the block 4.
ゴム部材10,11には、圧縮ヤング率の大き
い耐摩耗性等に優れ且つ短繊維で補強された周知
の合成ゴムが使用されており、心体9,9がブロ
ツク4やプーリ21に接触しないように保持して
いる。又、ゴム部材10,11の上面と下面に
は、屈曲性および耐摩耗性に優れた綿繊維、ポリ
アミド繊維等の紡繊維から成る織布が埋設されて
いる。 The rubber members 10 and 11 are made of well-known synthetic rubber that has a large compressive Young's modulus, has excellent abrasion resistance, and is reinforced with short fibers, so that the core bodies 9 and 9 do not come into contact with the block 4 or the pulley 21. It holds like that. Further, in the upper and lower surfaces of the rubber members 10 and 11, a woven fabric made of spun fibers such as cotton fibers and polyamide fibers having excellent flexibility and abrasion resistance is embedded.
ブロツク4は、アルミ合金等の熱伝導率の高い
金属材料からなる中央基部5と、該中央基部5の
両側面5a,5bに取着された高強度樹脂や硬質
ゴム等の耐摩耗性に優れた材料からなる外側部
6,6とから形成されている。 The block 4 has a central base 5 made of a metal material with high thermal conductivity such as an aluminum alloy, and high-strength resin or hard rubber attached to both sides 5a and 5b of the central base 5, which have excellent wear resistance. It is formed from outer parts 6, 6 made of a different material.
ブロツク4の両側面4a,4bは、変速プーリ
21の溝角度αを成すように傾斜しており、該溝
角度αと同角度をなす中央基部5の両側面5a,
5bに接着された外側部6,6の外側面6a,6
aによつて形成されている。ブロツク4の上面4
cおよび下面4dは、Vベルト1の軽量化を目的
としてそれぞれアーチ状の凸面および凹面に形成
されている。ブロツク4,4間の対向する面の一
方4eは、鉛直面を成し、他方4fは、張力帯と
の係合溝7,8の中心から上方において鉛直面を
成し同中心から下方においてVベルト1の使用最
小ピツチ径に対応した角度βを成す傾斜面となつ
ている。又、これら係合溝7,8によつて、外側
部6,6は上下に分断されている。 Both side surfaces 4a and 4b of the block 4 are inclined so as to form a groove angle α of the speed change pulley 21, and both side surfaces 5a and 4b of the central base 5 form the same angle as the groove angle α.
outer surfaces 6a, 6 of outer parts 6, 6 glued to 5b;
It is formed by a. Top surface 4 of block 4
c and the lower surface 4d are formed into an arch-shaped convex surface and a concave surface, respectively, for the purpose of reducing the weight of the V-belt 1. One of the facing surfaces 4e between the blocks 4, 4 forms a vertical surface, and the other 4f forms a vertical surface upward from the center of the engagement grooves 7, 8 with the tension band, and downward from the same center forms a V-shaped surface. It is an inclined surface forming an angle β corresponding to the minimum pitch diameter used by the belt 1. Further, the outer parts 6, 6 are divided into upper and lower parts by these engaging grooves 7, 8.
また、詳細を第4図に示すように、ブロツク4
の両側部には、側面4a,4bに開口し上記張力
帯2,3のゴム部材10,11と係合する係合溝
7,8がそれぞれ形成されており、ブロツク4を
上ビーム部、センターピラー部、下ビーム部に区
画している。各係合溝の上面7a,8aおよび下
面7b,8bには凸条部7c,8c,7d,8d
がそれぞれ設けられている。これら凸条部7c,
8c,7d,8dに対応して、張力帯2,3のゴ
ム部材10,11の上面および下面には、相互に
噛合するように凹溝部が設けられている。この構
成によつてブロツク4と張力帯2,3とはVベル
ト1の長手方向に相互に拘束、固定し幅方向に脱
着可能な動力伝達手段を形成している。 In addition, as shown in Fig. 4, block 4
Engagement grooves 7, 8 are formed on both sides of the block 4, respectively, to open on the side surfaces 4a, 4b and engage with the rubber members 10, 11 of the tension bands 2, 3. It is divided into a pillar part and a lower beam part. The upper surfaces 7a, 8a and lower surfaces 7b, 8b of each engagement groove have protruding stripes 7c, 8c, 7d, 8d.
are provided for each. These convex portions 7c,
Corresponding to 8c, 7d, and 8d, grooves are provided on the upper and lower surfaces of the rubber members 10 and 11 of the tension bands 2 and 3 so as to engage with each other. With this configuration, the block 4 and the tension bands 2 and 3 form a power transmission means that restrains and fixes each other in the longitudinal direction of the V-belt 1 and is detachable in the width direction.
第5図に示すように、本考案の変形例としての
Vベルト30は、張力帯31の心体32の一部を
露出してベルト30に発生した熱を放熱させるた
めに、強靭鋼から成る心体32をコグつきゴム部
材33を介してブロツク34に係合されている。
ブロツク34は、心体32の一部を露出するため
に一定ピツチで隔設されている。又、コグつきゴ
ム部材33とブロツク34との係合を、下方にお
いて弧状の凹凸で行つている。ブロツク34の相
互の対向面は、張力帯31の中心から上方におい
て鉛直で、下方において長手方向で対称状態に上
記実施例における角度βを成すように傾斜してい
る。その他、中央基部および外側部の構成は、上
記実施例とほぼ同じであり、心体32の一部露出
と熱伝導度の高い中央基部によつて放熱性が同様
に改善されている。 As shown in FIG. 5, a V-belt 30 as a modified example of the present invention is made of strong steel in order to expose a part of the core body 32 of the tension band 31 and dissipate the heat generated in the belt 30. The core body 32 is engaged with a block 34 via a rubber member 33 with a cog.
The blocks 34 are spaced apart at regular intervals to expose portions of the core 32. Further, the rubber member 33 with cogs and the block 34 are engaged with each other by arcuate projections and depressions at the lower part. The mutually opposing faces of the blocks 34 are vertical in the upper direction from the center of the tension band 31 and inclined downwardly in a symmetrical manner in the longitudinal direction at an angle β in the embodiment described above. In other respects, the configurations of the central base and the outer portions are almost the same as in the above embodiment, and the heat dissipation is similarly improved by partially exposing the core body 32 and the central base having high thermal conductivity.
(考案の効果)
上記のように構成されたVベルトにおいては、
張力帯とブロツクとの係合部における相対的なす
べり摩擦や張力帯の屈曲の繰返しによつて発生す
る熱に対して、強靭鋼製心体を経て該心体の露出
部分より外部に効率良く放熱することができるの
で、ブロツクや張力帯の熱劣化の影響を軽減して
ベルトの耐久性を向上できる。更に、心体の薄厚
化、心体の露出及びブロツク間の間隔によつてベ
ルトの屈曲性を一層向上させてコンパクト設計が
可能となる。(Effect of the invention) In the V-belt configured as above,
The heat generated by the relative sliding friction at the engagement part between the tension band and the block and the repeated bending of the tension band is efficiently transferred to the outside from the exposed part of the core through the strong steel core. Since heat can be dissipated, the effects of thermal deterioration of blocks and tension bands can be reduced and the durability of the belt can be improved. Further, by making the core thinner, exposing the core, and spacing between the blocks, the flexibility of the belt is further improved and a compact design becomes possible.
第1図ないし第5図は本考案の一実施例を示
し、第1図はVベルトの側面図、第2図は第1図
における−線断面図、第3図はVベルトが変
速プーリと嵌合し動力伝動状態にあるときの一部
断面図、第4図はVベルトのブロツクの斜視図、
第5図は本考案のVベルトの変形例の側面図であ
る。
1……Vベルト、2,3,31……張力帯、4
……ブロツク、932……心体、10,11,3
3……ゴム部材、30……Vベルト、34……ブ
ロツク。
Figures 1 to 5 show an embodiment of the present invention. Figure 1 is a side view of the V-belt, Figure 2 is a sectional view taken along the - line in Figure 1, and Figure 3 shows the V-belt connected to the speed change pulley. A partial cross-sectional view of the V-belt blocks when they are fitted and in a power transmission state; FIG. 4 is a perspective view of the V-belt blocks;
FIG. 5 is a side view of a modified example of the V-belt of the present invention. 1... V belt, 2, 3, 31... Tension band, 4
...Block, 932...Mind-body, 10, 11, 3
3...Rubber member, 30...V belt, 34...Block.
Claims (1)
係合されてなるVベルトであつて、 上記張力帯は、マルエージング鋼等の強靭鋼よ
りなる心体と、該心体をその長手方向に一定間隔
毎に一部を露出せしめた状態で鋳ぐるむとともに
上記ブロツクに係合せしめられるゴム部材とから
なり、 上記ブロツクは、上記張力帯の心体露出部分を
外部に露出せしめるよう張力帯に長手方向に一定
間隔をあけて並設されていることを特徴とするV
ベルト。[Claims for Utility Model Registration] A V-belt consisting of a pair of endless tension bands in which a plurality of blocks are engaged; It consists of a rubber member that is cast around the body with parts exposed at regular intervals in the longitudinal direction and is engaged with the block, and the block exposes the exposed part of the core body of the tension band to the outside. V characterized in that the tension bands are arranged in parallel at regular intervals in the longitudinal direction so as to
belt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987027896U JPH038824Y2 (en) | 1987-02-25 | 1987-02-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987027896U JPH038824Y2 (en) | 1987-02-25 | 1987-02-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63135043U JPS63135043U (en) | 1988-09-05 |
JPH038824Y2 true JPH038824Y2 (en) | 1991-03-05 |
Family
ID=30830356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987027896U Expired JPH038824Y2 (en) | 1987-02-25 | 1987-02-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH038824Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013140784A1 (en) * | 2012-03-19 | 2013-09-26 | バンドー化学株式会社 | V-belt for transmitting high loads |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56119608A (en) * | 1980-02-21 | 1981-09-19 | Kobe Steel Ltd | Manufacture of metallic belt |
JPS5886946A (en) * | 1981-11-20 | 1983-05-24 | Nissan Motor Co Ltd | Manufacture of transmission v-belt |
-
1987
- 1987-02-25 JP JP1987027896U patent/JPH038824Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56119608A (en) * | 1980-02-21 | 1981-09-19 | Kobe Steel Ltd | Manufacture of metallic belt |
JPS5886946A (en) * | 1981-11-20 | 1983-05-24 | Nissan Motor Co Ltd | Manufacture of transmission v-belt |
Also Published As
Publication number | Publication date |
---|---|
JPS63135043U (en) | 1988-09-05 |
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