JPS6224125Y2 - - Google Patents
Info
- Publication number
- JPS6224125Y2 JPS6224125Y2 JP1984097596U JP9759684U JPS6224125Y2 JP S6224125 Y2 JPS6224125 Y2 JP S6224125Y2 JP 1984097596 U JP1984097596 U JP 1984097596U JP 9759684 U JP9759684 U JP 9759684U JP S6224125 Y2 JPS6224125 Y2 JP S6224125Y2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- fixed
- belt
- sliding
- pressure fluid
- 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
- 239000012530 fluid Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Pulleys (AREA)
- Transmissions By Endless Flexible Members (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は２本掛けベルト用変速プーリに係り、
詳しくは一対の使用ベルトを均等な条件下で走行
させるに適した２本掛けベルト用変速プーリに関
する。[Detailed description of the invention] (Field of industrial application) The invention relates to a speed change pulley for a two-belt belt.
More specifically, the present invention relates to a speed change pulley for a double belt, which is suitable for running a pair of belts under equal conditions.
（従来の技術）
従来の２本掛けベルト用変速プーリは、第４図
に示すようにキー等によつて軸１に固定されたス
リーブ２と、該スリーブ２の周面を移動可能に取
付けた一対の摺動シーブ３，３、そして該摺動シ
ーブ３，３の間にあつてスリーブ２に固定した固
定シーブ４から構成され、上記摺動シーブ３，３
は夫々スリーブ２に固定したストツパー５との間
に介在せしめたスプリング６によつてベルトを押
圧している。(Prior art) As shown in Fig. 4, a conventional speed change pulley for a two-piece belt consists of a sleeve 2 fixed to a shaft 1 with a key or the like, and a circumferential surface of the sleeve 2 movably attached. It is composed of a pair of sliding sheaves 3, 3, and a fixed sheave 4 located between the sliding sheaves 3, 3 and fixed to the sleeve 2.
The belt is pressed by a spring 6 interposed between a stopper 5 fixed to the sleeve 2, respectively.
（考案が解決しようとする問題点）
しかしながら、上記の如き変速プーリでは、使
用する一対のベルト間においては製造工程上、ベ
ルト長さが一定であつても巾方向の誤差を有する
ことがあり、この種のベルトを組合わせると巾の
広いベルトは他のベルトに比べて大きな側圧を受
けるためにベルト側圧の大きい苛酷な条件下で走
行することになり、結局、ベルト寿命を短縮させ
る現象が生じるという問題がある。(Problems to be solved by the invention) However, in the variable speed pulley as described above, due to the manufacturing process, even if the belt length is constant, there may be an error in the width direction between the pair of belts used. When these types of belts are combined, the wide belt receives greater lateral pressure than other belts, resulting in the belt running under harsh conditions with large lateral pressure, resulting in a phenomenon that shortens belt life. There is a problem.
本考案は上述の如き実状に鑑み、２本掛けベル
ト用プーリにおいて、使用する一対のベルト間に
巾方向の寸法誤差があつても両者のベルトを均等
に押圧して同等の条件下で走行させ、ベルト寿命
の格差を防止せしめることを問題点とし、圧力流
体利用のシリンダ機構によりその解決を図らんと
するものである。 In view of the above-mentioned actual situation, the present invention was developed in a pulley for a double belt, so that even if there is a dimensional error in the width direction between a pair of belts used, both belts can be pressed equally and run under the same conditions. , the problem is to prevent disparity in belt life, and an attempt is made to solve this problem with a cylinder mechanism that uses pressure fluid.
（問題点を解決するための手段）
しかして、上記問題点を解決するための本考案
の特徴は、スリーブの長手方向に一定範囲だけ移
動可能な状態に取付けてなる相対向する一対の摺
動スリーブと該摺動スリーブ間にあつて前記スリ
ーブに固定してなる固定シーブからなる２本掛け
ベルト用変速プーリにおいて、一対の摺動シーブ
のボス部内部に圧力流体を貯蔵するシリンダー部
と、該シリンダー部に連通する圧力流体の通路孔
を設けると共に、固定シーブに固定した貫通孔を
有する少なくとも１つ以上の筒体を前記圧力流体
の通路孔に摺動可能に挿入せしめた点にある。(Means for Solving the Problems) Therefore, the feature of the present invention for solving the above problems is that a pair of sliding slides facing each other are attached to the sleeve so as to be movable within a certain range in the longitudinal direction of the sleeve. A variable speed pulley for a dual belt consisting of a sleeve and a fixed sheave fixed to the sleeve between the sliding sleeves, a cylinder section for storing pressure fluid inside the boss section of the pair of sliding sheaves; A pressure fluid passage hole communicating with the cylinder portion is provided, and at least one cylindrical body having a through hole fixed to a fixed sheave is slidably inserted into the pressure fluid passage hole.
（作 用）
しかして、上記の如き構成をもつ変速プーリは
一方のシリンダー部に貯蔵された圧力流体を他方
のシリンダー部へ流出させると共に、スリーブの
回転を摺動シーブへ伝達する役割を有し、２本の
ベルトに巾誤差があつても夫々の巾に応じて圧力
流体を両シリンダー部間で互いに流動せしめて両
ベルトに均等な押圧作用を与えるように単独で作
動することができる。(Function) Therefore, the speed change pulley having the above configuration has the role of causing the pressure fluid stored in one cylinder portion to flow out to the other cylinder portion, and transmitting the rotation of the sleeve to the sliding sheave. Even if there is a width difference between the two belts, the pressure fluid can be made to flow between both cylinder parts according to the respective widths, and can be operated independently to apply an equal pressing action to both belts.
（実施例）
以下、具体的実施例を添付図面に従つて説明す
る。(Example) Specific examples will be described below with reference to the accompanying drawings.
第１図は断面台形の対称形式をもつＶベルトに
適用する本考案に係る２本掛けベルト用変速プー
リの一部縦断面図、第２図は同第１図のＡ−Ａ断
面図であり、本考案に係る変速プーリ１０は駆動
軸１１（あるいは従動軸）にキー１２によつて固
定されたスリーブ１３、該スリーブ１３の長手方
向へ一定間隔だけ移動する一対の相対向する摺動
シーブ１４，１４、そして該摺動シーブ１４，１
４の間にあつてスリーブ１３に固定された固定シ
ーブ１５から構成されていることは従来のものと
何ら変るところはない。 Fig. 1 is a partial longitudinal cross-sectional view of a speed change pulley for a double belt according to the present invention applied to a V-belt having a symmetrical trapezoidal cross section, and Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1. The speed change pulley 10 according to the present invention includes a sleeve 13 fixed to a drive shaft 11 (or a driven shaft) with a key 12, and a pair of opposing sliding sheaves 14 that move at a constant distance in the longitudinal direction of the sleeve 13. , 14, and the sliding sheave 14,1
4 and fixed sheave 15 fixed to sleeve 13, which is no different from the conventional one.
しかして、上記変速プーリにおいて、本考案で
は前記摺動シーブ１４，１４はボス部１６の内部
において空部１７を形成し、スリーブ１３にスト
ツプリング１８で固定された遮断板１９とスリー
ブ１３とによつて圧力流体、例えば圧縮空気、油
等を貯蔵するシリンダー部２０を構成すると共
に、該シリンダー部２０に連通しボス部１６の円
周方向に分散配置された圧力流体の通路孔２１を
有している。 Therefore, in the above-mentioned speed change pulley, in the present invention, the sliding sheaves 14, 14 form a hollow part 17 inside the boss part 16, and the sleeve 13 and the shielding plate 19 are fixed to the sleeve 13 with a stop ring 18. It constitutes a cylinder part 20 for storing pressure fluid, such as compressed air, oil, etc., and has pressure fluid passage holes 21 communicating with the cylinder part 20 and distributed in the circumferential direction of the boss part 16. There is.
摺動シーブ１４，１４は前記スリーブ１３およ
びスリーブ１３に固定された遮断板１９の周面を
摺動し、スリーブ１３の表面に取付けたもう一方
のストツプリング２２とシリンダー部２０の壁面
２３とが当接することによつて摺動シーブ１４，
１４の開拡距離が制御されている。そして、摺動
部分にはＯリング２４，２４が組み込まれて圧力
流体のもれを防止するように構成されている。 The sliding sheaves 14, 14 slide on the circumferential surface of the sleeve 13 and the blocking plate 19 fixed to the sleeve 13, and the other stop ring 22 attached to the surface of the sleeve 13 and the wall surface 23 of the cylinder part 20 are in contact with each other. By contacting the sliding sheave 14,
14 spread distances are controlled. O-rings 24, 24 are incorporated in the sliding portions to prevent leakage of pressure fluid.
なお、一方の摺動シーブのボス部１６表面には
導入口２５があり、圧力流体をシリンダー部２０
へ注入するようになつている。しかし、この注入
孔は導入口を両側に設け、パイプで連結すること
もある。 Note that there is an inlet 25 on the surface of the boss portion 16 of one sliding sheave, and the pressure fluid is introduced into the cylinder portion 20.
It is now being injected into the However, this injection hole may have inlets on both sides and be connected by a pipe.
一方、図中、２６は貫通孔２７をもつ筒体であ
り、固定シーブ１５に挿入されストツプリング２
８によつて固定されて固定シーブ１５の円周方向
に複数個設けられ、その両側が前記摺動シーブ１
４のボス部１６の内部に設けた圧力流体の通路孔
２１内に摺動可能に挿入されており、一方のシリ
ンダー部２０に貯蔵された圧力流体を他方のシリ
ンダー部２０へ流出させる機能とスリーブ１３の
回転を摺動シーブ１４へ伝達する役割を具備して
いる。従つて、この機構はベルトを押圧しトルク
を伝達する機能を有するのみならず、２本のベル
トにたとえ巾誤差があつても均等に押圧するよう
に単独で作動可能な構造になつている。 On the other hand, in the figure, 26 is a cylinder having a through hole 27, which is inserted into the fixed sheave 15 and is inserted into the stop ring 2.
8, a plurality of fixed sheaves 15 are provided in the circumferential direction of the fixed sheave 15, and both sides thereof are fixed to the sliding sheave 1.
The sleeve is slidably inserted into a pressure fluid passage hole 21 provided inside the boss part 16 of No. 4, and has a function of causing the pressure fluid stored in one cylinder part 20 to flow out to the other cylinder part 20. 13 to the sliding sheave 14. Therefore, this mechanism not only has the function of pressing the belt and transmitting torque, but also has a structure that allows it to operate independently so as to press evenly even if there is a difference in width between the two belts.
次に第３図に示す変速プーリ１０は本考案の他
の実施例であつて、非対称形状をもつベルトに適
用するものであり、前記固定シーブ３０はベルト
側面と接触する側面３１が駆動軸１１（又は従動
軸）の長手方向に対して略々直角、好ましくは90
゜＋（２〜５゜）になつており、使用するベルト
３２も一方の側面が90゜に近い角度をもつた非対
称形状になつている。そして、これによつて変速
プーリ１０の高速時にはベルト３２はP1の位置
に、低速時にはP2のピツチ径に移動するが、ベル
ト走行線３３，３３は軸１１に直角である同じ線
上に位置している。 Next, the speed change pulley 10 shown in FIG. 3 is another embodiment of the present invention, and is applied to a belt having an asymmetrical shape. (or driven shaft) approximately perpendicular to the longitudinal direction, preferably 90
+ (2 to 5 degrees), and the belt 32 used also has an asymmetrical shape with one side at an angle close to 90 degrees. As a result, the belt 32 moves to the pitch diameter of P 1 when the speed change pulley 10 is moving at high speed, and to the pitch diameter of P 2 when the speed change pulley 10 is running at low speed, but the belt running lines 33 and 33 are positioned on the same line that is perpendicular to the shaft 11. are doing.
（考案の効果）
以上のように、本考案の２本掛けベルト用変速
プーリは従来の如きベルトを押圧するスプリング
に代え、一対の摺動シーブボス部内にシリンダー
部を設けてこの中に貯蔵した圧力流体を貫通孔を
もつ筒体を介して流出入させることによつてベル
トを押圧するものであり、圧力流体の流出入によ
つて２本のベルトに巾誤差があつても各ベルトを
均等に、かつ敏感に押圧するように単独で作動す
ることができ、各ベルトを均等の条件下で走行可
能ならしめ、これによつて寿命の格差をなくす効
果がある。(Effects of the invention) As described above, the speed change pulley for two belts of the invention has a cylinder part inside a pair of sliding sheave boss parts instead of a conventional spring that presses the belt, and the pressure stored in the cylinder part is The belt is pressed by letting fluid flow in and out through a cylindrical body with a through hole, and even if there is a width difference between the two belts, each belt can be spread evenly by the flow of pressure fluid in and out. , and can operate independently to press sensitively, allowing each belt to run under equal conditions, thereby eliminating disparities in service life.
第１図は本考案に係る２本掛けベルト用変速プ
ーリの１例を示す一部縦断面図、第２図は第１図
のＡ−Ａ断面図、第３図は本考案変速プーリの他
の実施例を示す一部縦断面図、第４図は従来の２
本掛けベルト用変速プーリ例を示す縦断面部分図
である。
１０……変速プーリ、１１……駆動軸（従動
軸）、１３……スリーブ、１４……摺動シーブ、
１５……固定シーブ、１６……ボス部、２０……
シリンダー部、２１……圧力流体通路孔、２６…
…筒体、２７……貫通孔。
Fig. 1 is a partial vertical cross-sectional view showing one example of a speed change pulley for a double belt according to the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a view showing other speed change pulleys of the present invention. FIG. 4 is a partial vertical sectional view showing an embodiment of the conventional 2
It is a longitudinal cross-sectional partial view which shows the example of the speed change pulley for main belts. 10... Speed pulley, 11... Drive shaft (driven shaft), 13... Sleeve, 14... Sliding sheave,
15...Fixed sheave, 16...Boss part, 20...
Cylinder part, 21... Pressure fluid passage hole, 26...
... Cylindrical body, 27... Through hole.
Claims (1)
だけ移動可能に取付けてなる一対の摺動シーブ
と、両摺動シーブ間にあつて前記スリーブに固定
してなる固定シーブからなる２本掛けベルト用変
速プーリにおいて、前記一対の摺動シーブの各ボ
ス部内部に圧力流体を貯蔵するシリンダー部及び
該シリンダー部に連通する圧力流体の通路孔を設
け、固定シーブに固着した貫通孔を有する少なく
とも１つ以上の筒体を前記通路孔に摺動可能に挿
入してなることを特徴とする２本掛けベルト用変
速プーリ。 A transmission for a double belt consisting of a pair of sliding sheaves attached to a sleeve so as to be movable within a certain range in the longitudinal direction of the sleeve, and a fixed sheave located between the two sliding sheaves and fixed to the sleeve. In the pulley, a cylinder part for storing pressure fluid is provided inside each boss part of the pair of sliding sheaves, and a pressure fluid passage hole communicating with the cylinder part is provided, and at least one or more has a through hole fixed to the fixed sheave. A speed change pulley for a double belt, characterized in that a cylindrical body is slidably inserted into the passage hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9759684U JPS6113058U (en) | 1984-06-27 | 1984-06-27 | Speed change pulley for double belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9759684U JPS6113058U (en) | 1984-06-27 | 1984-06-27 | Speed change pulley for double belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6113058U JPS6113058U (en) | 1986-01-25 |
| JPS6224125Y2 true JPS6224125Y2 (en) | 1987-06-19 |
Family
ID=30657152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9759684U Granted JPS6113058U (en) | 1984-06-27 | 1984-06-27 | Speed change pulley for double belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6113058U (en) |
-
1984
- 1984-06-27 JP JP9759684U patent/JPS6113058U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6113058U (en) | 1986-01-25 |
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