JPS6235973Y2 - - Google Patents
Info
- Publication number
- JPS6235973Y2 JPS6235973Y2 JP11504082U JP11504082U JPS6235973Y2 JP S6235973 Y2 JPS6235973 Y2 JP S6235973Y2 JP 11504082 U JP11504082 U JP 11504082U JP 11504082 U JP11504082 U JP 11504082U JP S6235973 Y2 JPS6235973 Y2 JP S6235973Y2
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- groove
- elastic body
- vibration
- rear surfaces
- 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
- 239000002952 polymeric resin Substances 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 238000013016 damping Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Pulleys (AREA)
Description
本考案は、ベルト伝動系に用いられるプーリに
関し、特にプーリ自体の回転に伴う振動騒音の低
減を図るものに関する。
TECHNICAL FIELD The present invention relates to a pulley used in a belt transmission system, and particularly to a pulley that aims to reduce vibration noise caused by the rotation of the pulley itself.
Ｖプーリは、一般に駆動軸及び従動軸に一体的
に取付けられ、外周部のＶ溝に嵌合して巻掛けら
れたベルトと、溝との接触面の摩擦によつて動力
を伝達する。従つて、駆動軸が振動する場合には
プーリも一緒に振動して、Ｖ溝におけるベルトの
当りが不均一になつたり、長尺帯状のベルトを上
下に振らせることになり、この結果騒音を生じる
ものである。
そこで、従来はこのような点に着目し、プーリ
の振動騒音に関してベルトを含めた伝動系全体を
考慮し、駆動軸に取付けられる中心ハブ部に対
し、外周Ｖ溝のリム部の振動を吸収して低減する
方法が用いられ、その１つに防振ダンパ付プーリ
がある。これは、プーリの中心ハブ部と外周のＶ
溝を形成するリム部との間のデイスク部を径方向
に２分割して、その間に円筒状のゴム弾性体を介
設したり、又は実開昭53−139452号公報のよう
に、円周上に断続的にゴム弾性体を配置したもの
である。
なお、本考案の構造に類似する先行技術とし
て、特開昭48−35252号公報があるが、これは、
強度的に弱いプラスチツク製のプーリの補強芯材
に対処したもので、本考案のような騒音低減を目
的とするものではない。
A V-pulley is generally integrally attached to a drive shaft and a driven shaft, and transmits power through friction between a belt that is fitted and wound around a V-groove on the outer periphery and a contact surface between the groove and the groove. Therefore, when the drive shaft vibrates, the pulley also vibrates, causing uneven contact of the belt in the V-groove and causing the long belt-shaped belt to swing up and down, resulting in noise. It is something that occurs. Therefore, in the past, we focused on this point and considered the entire transmission system including the belt regarding the vibration and noise of the pulley, and absorbed the vibration of the rim part of the outer V groove with respect to the central hub part attached to the drive shaft. One of the ways to reduce this is by using a pulley with an anti-vibration damper. This is the V between the center hub and the outer periphery of the pulley.
The disk part between the rim part forming the groove can be divided into two parts in the radial direction, and a cylindrical rubber elastic body can be interposed between them. Rubber elastic bodies are disposed intermittently on top. In addition, as a prior art similar to the structure of the present invention, there is Japanese Patent Application Laid-Open No. 48-35252, which
This method deals with the reinforcing core material of plastic pulleys, which are weak in strength, and is not intended to reduce noise like the present invention.
従つて、上記ゴム弾性体により駆動軸の振動に
対しベルト側の振動が低減されて、ベルト伝動系
の振動騒音の低減には役立つが、ゴム弾性体に回
転トルクが作用するため、伝達トルクが制限され
る不具合がある。
一方、Ｖプーリは一般に外周部がＶ溝を形成す
べく幅広くなつているため、前，後面がラツパ状
に開いた構造になつており、これによりこの前，
後面からの音の放射指向性が非常に高い。従つ
て、駆動軸と共にプーリが回動する際の振動音が
プーリの前，後面からスピーカの如く放射される
のであり、このようなプーリ自体の回転に伴う騒
音がある。
本考案はこのような事情に鑑み、プーリのラツ
パ状を成す前，後面から放射される音に伴う騒音
を効果的に低減するプーリを提供することを目的
とする。
Therefore, the rubber elastic body reduces vibrations on the belt side relative to vibrations of the drive shaft, which helps reduce vibration noise in the belt transmission system, but since rotational torque acts on the rubber elastic body, the transmitted torque is reduced. There is a problem that limits it. On the other hand, V-pulleys generally have a wide outer periphery to form a V-groove, so they have a structure with the front and rear surfaces open in the shape of a flap.
The radiation directionality of sound from the rear is very high. Therefore, the vibration sound generated when the pulley rotates together with the drive shaft is radiated from the front and rear surfaces of the pulley like a speaker, and there is noise accompanying the rotation of the pulley itself. In view of these circumstances, it is an object of the present invention to provide a pulley that effectively reduces the noise associated with the sound radiated from the front and rear surfaces of the pulley.
この目的のため本考案によるプーリは、前後の
軸方向に２分割してその間に減衰能の高い高分子
樹脂の弾性体を挟み込み、駆動軸の回転の際のプ
ーリの振動に対し前，後面の振動を制限して、そ
の前，後面から放射される騒音を低減することを
特徴とするものである。
For this purpose, the pulley according to the present invention is divided into two parts in the front and rear axial directions, and an elastic body made of high polymer resin with high damping capacity is sandwiched between them. It is characterized by limiting vibration and reducing noise radiated from the front and rear surfaces.
以下、図面を参照して本考案の一実施例につき
具体的に説明すると、第１図において、符号１は
サンドイツチ型制振構造のプーリ本体であり、前
面２と後面３に軸方向に２分割される。前面２と
後面３はデイスク部２ａ，３ａ、外周のＶ溝４を
形成するリム部２ｂ，３ｂから成り、これらの
前，後面２，３の一方の例えば後面３の中心部に
駆動軸５に取付けるためのハブ部３ｃが一体的に
固着される。そして、これらの前，後面２，３の
デイスク部２ａ，３ａの間に減衰能の高い高分子
樹脂の弾性体６が一体的に挟み込まれて、サンド
イツチ型に構成されるものである。
このように構成されることから、駆動軸５の動
力は後面３から幅広いドーナツ型の弾性体６の剪
断力により前面２に伝わつて一体的に回転するこ
とになる。そしてこのとき、弾性体６の高い減衰
能により前面２に伝達する振動エネルギーが吸収
されて、その前面２から放射される音が少なくな
る。一方、Ｖ溝４においても一方のリム部３ｂに
対して他方のリム部２ｂが弾性体６を介して回転
方向にずれを生じ得るので、このずれによりＶ溝
４のベルトへの振動の伝達が制限される。
尚、本考案によるプーリ本体１の製造について
は、第２図に示すように市販されているサンドイ
ツチ型の制振鋼板７を用い、この鋼板７を円盤状
に切断した後、くさび型の切削工具８でＶ溝を成
形することにより容易に製造することができる。
なお、高分子樹脂の弾性体６は１枚のみなら
ず、複数枚挟んで多段に構成しても良い。
Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. In Fig. 1, reference numeral 1 denotes a pulley body with a Sandermanch type vibration damping structure, which is divided into two in the axial direction into a front surface 2 and a rear surface 3. be done. The front surface 2 and the rear surface 3 consist of disk portions 2a, 3a and rim portions 2b, 3b forming a V-groove 4 on the outer periphery. A hub portion 3c for attachment is integrally fixed. An elastic body 6 made of a polymeric resin having a high damping capacity is integrally sandwiched between the disk portions 2a and 3a of the front and rear surfaces 2 and 3, forming a sanderch type structure. With this configuration, the power of the drive shaft 5 is transmitted from the rear surface 3 to the front surface 2 by the shearing force of the wide donut-shaped elastic body 6, and rotates integrally. At this time, the vibration energy transmitted to the front surface 2 is absorbed by the high damping ability of the elastic body 6, and the sound radiated from the front surface 2 is reduced. On the other hand, also in the V-groove 4, one rim portion 3b may be displaced in the rotational direction via the elastic body 6, so that the vibrations of the V-groove 4 are not transmitted to the belt. limited. For manufacturing the pulley body 1 according to the present invention, as shown in FIG. 2, a commercially available Sanderch-type damping steel plate 7 is used, and after cutting this steel plate 7 into a disk shape, a wedge-shaped cutting tool is used. It can be easily manufactured by forming a V-groove in step 8. Note that the elastic body 6 made of polymer resin is not limited to one piece, and may be configured in multiple stages by sandwiching a plurality of pieces.
以上の説明から明らかなように本考案による
と、プーリ自体の回転に伴い、その前，後面２，
３から放射される騒音が効果的に低減される。幅
の広いドーナツ型の弾性体６の剪断力で動力伝達
されるので、伝達トルクが比較的大きく、且つ軽
量化して慣性モーメントも小さい。市販されてい
るサンドイツチ型制振鋼板をそのまま使用するこ
とが可能で、従来の防振ダンパ付プーリに比べて
製造が容易である。
As is clear from the above explanation, according to the present invention, as the pulley itself rotates, its front and rear surfaces 2,
Noise radiated from 3 is effectively reduced. Since the power is transmitted by the shearing force of the wide donut-shaped elastic body 6, the transmitted torque is relatively large, the weight is reduced, and the moment of inertia is small. It is possible to use commercially available sanderch-type vibration-damping steel plates as is, and manufacturing is easier than conventional pulleys with vibration-proof dampers.
第１図は本考案によるプーリの一実施例を示す
断面図、第２図はその製造法の一例を示す図であ
る。
１……プーリ本体、２……前面、３……後面、
２ａ，３ａ……デイスク部、２ｂ，３ｂ……リム
部、３ｃ……ハブ部、４……Ｖ溝、５……駆動
軸、６……弾性体、７……制振鋼板、８……切削
工具。
FIG. 1 is a cross-sectional view showing an embodiment of a pulley according to the present invention, and FIG. 2 is a view showing an example of its manufacturing method. 1...Pulley body, 2...Front surface, 3...Rear surface,
2a, 3a... Disc part, 2b, 3b... Rim part, 3c... Hub part, 4... V groove, 5... Drive shaft, 6... Elastic body, 7... Vibration damping steel plate, 8... Cutting tools.
Claims (1)
から成る前，後面の間に高分子樹脂の弾性体を一
体的に挟み込み、 上記前，後面の一方のデイスク部の中心側に駆
動軸取付け用のハブ部を固着したことを特徴とす
るプーリ。[Scope of Claim for Utility Model Registration] An elastic body made of polymer resin is integrally sandwiched between the front and rear surfaces, each consisting of a disk portion and a rim portion forming a V-groove on its outer periphery, and the disk portion on one of the front and rear surfaces. A pulley characterized by having a hub part for mounting a drive shaft fixed to the center side of the pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11504082U JPS5920055U (en) | 1982-07-28 | 1982-07-28 | pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11504082U JPS5920055U (en) | 1982-07-28 | 1982-07-28 | pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5920055U JPS5920055U (en) | 1984-02-07 |
| JPS6235973Y2 true JPS6235973Y2 (en) | 1987-09-12 |
Family
ID=30265698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11504082U Granted JPS5920055U (en) | 1982-07-28 | 1982-07-28 | pulley |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5920055U (en) |
-
1982
- 1982-07-28 JP JP11504082U patent/JPS5920055U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5920055U (en) | 1984-02-07 |
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