JPS5913391Y2 - Buffer mechanism of gear transmission - Google Patents
Buffer mechanism of gear transmissionInfo
- Publication number
- JPS5913391Y2 JPS5913391Y2 JP1978105785U JP10578578U JPS5913391Y2 JP S5913391 Y2 JPS5913391 Y2 JP S5913391Y2 JP 1978105785 U JP1978105785 U JP 1978105785U JP 10578578 U JP10578578 U JP 10578578U JP S5913391 Y2 JPS5913391 Y2 JP S5913391Y2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- transmission body
- plate
- damper
- rotation 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.)
- Expired
Links
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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/14—Construction providing resilience or vibration-damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Description
【考案の詳細な説明】
この考案は歯車伝動装置の緩衝機構に関するものである
。[Detailed Description of the Invention] This invention relates to a shock absorbing mechanism for a gear transmission.
まず、第３図に示された従来例を説明すると、この歯車
伝動装置においては２種類のゴム製のダンパー２０．２
１が設けられている。First, to explain the conventional example shown in FIG. 3, this gear transmission has two types of rubber dampers 20.
1 is provided.
ダンパ２０は歯車２２とこれの回転を受ける回転伝動体
２３との間で、歯車２２のバツクラツシにもとづく衝撃
を吸収するとともに歯車２２から回転伝動体２３へ荷重
を伝達する。The damper 20 absorbs the impact caused by the backlash of the gear 22 between the gear 22 and the rotation transmission body 23 that receives the rotation thereof, and also transmits the load from the gear 22 to the rotation transmission body 23.
また、ダンパ２１は歯車２２と回転伝動体２３を含む振
動系の共振点での周方向の振幅を小さく抑えるための摩
擦ダンパとして、歯車２２の軸方向の透孔２４に嵌合し
て、回転伝動体２３とプレート２５との間で圧縮してい
る。Further, the damper 21 is a friction damper for suppressing the amplitude in the circumferential direction at the resonance point of the vibration system including the gear 22 and the rotation transmission body 23, and is fitted into the through hole 24 in the axial direction of the gear 22 to rotate. It is compressed between the transmission body 23 and the plate 25.
プレート２５はリベット２６により回転伝動体２３に一
体的に固定されている。The plate 25 is integrally fixed to the rotation transmission body 23 by rivets 26.
ところが、上記構成においては、ゴム製のダンパ２１は
硬度および寸法精度のばらつきが大きいため、各ダンパ
（図面では１つだけ示されている）は回転伝動体２３、
プレート２５に対して周方向へ適切な摩擦力を与えるの
が困難で、上記共振点において、振動の振幅を充分に抑
えられない場合がある。However, in the above configuration, since the rubber damper 21 has large variations in hardness and dimensional accuracy, each damper (only one is shown in the drawing) has a rotary transmission body 23,
It is difficult to apply an appropriate frictional force to the plate 25 in the circumferential direction, and the amplitude of vibration may not be sufficiently suppressed at the resonance point.
また、プレート２５を確実に摩擦ダンパ２１に圧接させ
るには、プレート２５が歯車２２に圧接することがない
よう、歯車２２と回転伝動体２３およびプレート２５と
の間に軸方向の隙間を設けねばならず、そのため、上記
共振点において、回転伝動体２３が軸方向に遊動して、
回転伝動体２３およびプレート２５が歯車２２の側面部
に衝突し、機械音が発生する。Furthermore, in order to ensure that the plate 25 comes into pressure contact with the friction damper 21, an axial gap must be provided between the gear 22, the rotation transmission body 23, and the plate 25 so that the plate 25 does not come into pressure contact with the gear 22. Therefore, at the resonance point, the rotational transmission body 23 moves axially,
The rotation transmission body 23 and the plate 25 collide with the side surface of the gear 22, and mechanical noise is generated.
この考案はコイルばねを使用して、上記歯車と回転伝動
体とを軸方向に互に圧接させることにより、上記の問題
を解消することを目的とする。The purpose of this invention is to solve the above problem by using a coil spring to press the gear and the rotating transmission body against each other in the axial direction.
以下、この考案の実施例を図面にもとづいて説明する。Hereinafter, embodiments of this invention will be described based on the drawings.
第１図、第２図において、１は回転軸２に固定された歯
車で、この歯車１の一側部３には回転伝動体４が同心状
に対向して、ボス５と孔６とで回転自在に嵌合している
。In FIGS. 1 and 2, reference numeral 1 denotes a gear fixed to a rotating shaft 2. A rotary transmission body 4 is concentrically opposed to one side 3 of the gear 1, and has a boss 5 and a hole 6. They are rotatably fitted.
歯車１には軸方向に貫通する透孔７と、他側部８に開口
する盲孔９とが周方向に交互に設けられている。The gear 1 is provided with through holes 7 that penetrate in the axial direction and blind holes 9 that open on the other side 8, which are alternately provided in the circumferential direction.
透孔７には回転伝動体４の側部に形成された凸部１０が
ゴム製のダンパ１１を介して嵌合され、盲孔９にはゴム
製の摩擦ダンパ１２とこれを支持するコイルばね１３と
が嵌合されている。A convex portion 10 formed on the side of the rotation transmission body 4 is fitted into the through hole 7 via a rubber damper 11, and a rubber friction damper 12 and a coil spring supporting it are fitted into the blind hole 9. 13 are fitted.
上記ダンパ１１は、歯車１のバツクラツシを吸収すべく
、周方向で上記透孔７との間に間隙１７を有する形状に
形成されている。The damper 11 is formed in a shape having a gap 17 between the damper 11 and the through hole 7 in the circumferential direction in order to absorb the bumpiness of the gear 1.
１４は歯車１の他側部８に対向して配置された環状のプ
レートで、上記凸部１０の先端面にリベット１５により
固定されている。Reference numeral 14 denotes an annular plate disposed opposite to the other side 8 of the gear 1, and is fixed to the tip surface of the convex portion 10 with a rivet 15.
ブレート１４はダンパ１１の抜は出しを防止するととも
に、摩擦ダンパ１２を押圧してコイルばね１３を圧縮し
、歯車１と回転伝動体４とを軸方向に互に圧接させてい
る。The plate 14 prevents the damper 11 from being pulled out, and also presses the friction damper 12 to compress the coil spring 13, thereby pressing the gear 1 and the rotation transmission body 4 against each other in the axial direction.
この考案は上記のような構成になっており、歯車１の回
転はダンパ１１を介して回転伝動体４に伝達され、歯車
１のバツクラツシにもとづく衝撃はダンパ１１のクッシ
ョン作用により吸収される。This invention has the above-mentioned structure, and the rotation of the gear 1 is transmitted to the rotational transmission body 4 via the damper 11, and the impact caused by the backlash of the gear 1 is absorbed by the cushioning action of the damper 11.
このような伝動状態で、歯車１と回転伝動体４を含む振
動系の固有振動数が、歯車１と歯合してこの歯車１を駆
動する加振側（図示せず）の周波数と一致して共振の状
態が生じても、コイルばね１３と摩擦ダンパ１２とによ
り、歯車１と回転伝動体４およびプレート１４とが互い
に圧接されているので、共振点の振幅は小さく抑えられ
る。In such a transmission state, the natural frequency of the vibration system including the gear 1 and the rotating transmission body 4 matches the frequency of the excitation side (not shown) that meshes with the gear 1 and drives the gear 1. Even if a resonance state occurs, the coil spring 13 and the friction damper 12 press the gear 1, the rotation transmission body 4, and the plate 14 against each other, so that the amplitude of the resonance point can be kept small.
ここで、上記プレート１４が弾性体からなる摩擦ダンパ
１２を介してコイルばね１３を圧縮している点が特に重
要であり、これによって、上記摩擦ダンパ１２を介して
歯車１とプレート１４との間、すなわち歯車１と回転伝
動体４との間に、周方向への適切な摩擦力が与えられる
から、共振点において周方向への振動の振幅を充分に抑
えられるのである。Here, it is particularly important that the plate 14 compresses the coil spring 13 via the friction damper 12 made of an elastic body. That is, since an appropriate frictional force in the circumferential direction is applied between the gear 1 and the rotation transmission body 4, the amplitude of the circumferential vibration at the resonance point can be sufficiently suppressed.
このとき、摩擦ダンパ１２は、弾性変形量の大きいコイ
ルばね１３によりプレート１４に圧接されているから、
摩擦ダンパ１２の硬度や寸法精度に多少のばらつきがあ
っても、摩擦ダンパ１２とプレート１４との間の摩擦力
は常に適切な大きさに維持されるので、上記共振点にお
ける制振作用は有効に発揮される。At this time, since the friction damper 12 is pressed against the plate 14 by the coil spring 13 having a large amount of elastic deformation,
Even if there is some variation in the hardness or dimensional accuracy of the friction damper 12, the frictional force between the friction damper 12 and the plate 14 is always maintained at an appropriate level, so the damping effect at the resonance point is effective. It is demonstrated in
すなわち、共振での歯打音を有効に低下し、歯部の耐久
性を向上することができる。That is, it is possible to effectively reduce rattling noise caused by resonance and improve the durability of the tooth portion.
また、歯車１は上記コイルばね１３により回転伝動体に
圧接されるから、この歯車１が軸方向に遊動して転伝動
体４やプレート１４に当接することにより機械音が発生
するような不具合がない。In addition, since the gear 1 is pressed against the rotating transmission body by the coil spring 13, there is no problem that mechanical noise is generated when the gear 1 moves axially and comes into contact with the rolling transmission body 4 or the plate 14. do not have.
第１図はこの考案の実施例を示す一部破断正面図、第２
図は第１図のＡ−Ａ線断面図、第３図は従来例の縦断側
面図である。
１・・・歯車、３・・・側部、４・・・回転伝動体、７
・・・透孔、９・・・盲孔、１０・・・凸部、１１・・
・ダンパ、１２・・・摩擦ダンパ、１３・・・コイルば
ね、１４・・・プレート。Figure 1 is a partially cutaway front view showing an embodiment of this invention;
The figure is a sectional view taken along the line A--A in FIG. 1, and FIG. 3 is a vertical sectional side view of the conventional example. DESCRIPTION OF SYMBOLS 1... Gear, 3... Side part, 4... Rotation transmission body, 7
...Through hole, 9...Blind hole, 10...Protrusion, 11...
- Damper, 12...Friction damper, 13...Coil spring, 14...Plate.
Claims (1)
記回転伝動体４の側部に形成した凸部１０を、上記歯車
１に設けた透孔７に弾性体からなるダンパ１１を介して
嵌合することにより、上記歯車１と上記回転伝動体４と
を上記ダンパ１１を介して回転伝動可能に連結し、上記
歯車１の他側部８に設けた盲孔９にコイルばね１３を収
納し、上記歯車１の他側部８に対向して上記回転伝動体
４の凸部１０にプレート１４を固定し、このプレート１
４は、プレート１４と別体の弾性体からなり上記盲孔９
に嵌合された摩擦ダンパ１２を介して、上記コイルばね
１３を圧縮し、もって上記歯車１と上記回転伝動体４と
を互いに軸方向に圧接したことを特徴とする歯車伝動装
置の緩衝機構。A rotation transmission body 4 is concentrically opposed to one side 3 of the gear 1, and a convex portion 10 formed on the side of the rotation transmission body 4 is inserted into a through hole 7 provided in the gear 1 as a damper made of an elastic material. 11 , the gear 1 and the rotation transmission body 4 are connected to enable rotational transmission via the damper 11 , and a coil is inserted into the blind hole 9 provided on the other side 8 of the gear 1 . A plate 14 is fixed to the protrusion 10 of the rotary transmission body 4 facing the other side 8 of the gear 1, and the plate 1
4 is an elastic body separate from the plate 14, and the blind hole 9 is
A shock absorbing mechanism for a gear transmission, characterized in that the coil spring 13 is compressed through a friction damper 12 fitted into the gear, thereby pressing the gear 1 and the rotation transmission body 4 against each other in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978105785U JPS5913391Y2 (en) | 1978-07-31 | 1978-07-31 | Buffer mechanism of gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978105785U JPS5913391Y2 (en) | 1978-07-31 | 1978-07-31 | Buffer mechanism of gear transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5522581U JPS5522581U (en) | 1980-02-13 |
| JPS5913391Y2 true JPS5913391Y2 (en) | 1984-04-20 |
Family
ID=29048372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978105785U Expired JPS5913391Y2 (en) | 1978-07-31 | 1978-07-31 | Buffer mechanism of gear transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5913391Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5769370A (en) * | 1980-10-14 | 1982-04-28 | Sanyo Electric Co Ltd | Reader of card information |
| JPH02149156U (en) * | 1989-05-22 | 1990-12-19 | ||
| JP4515200B2 (en) * | 2004-09-02 | 2010-07-28 | 本田技研工業株式会社 | Gear rattle noise reduction structure for manual transmission for four-wheel drive vehicles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS424745Y1 (en) * | 1964-03-03 | 1967-03-13 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6037468Y2 (en) * | 1977-10-03 | 1985-11-08 | 本田技研工業株式会社 | clutch device |
-
1978
- 1978-07-31 JP JP1978105785U patent/JPS5913391Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS424745Y1 (en) * | 1964-03-03 | 1967-03-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5522581U (en) | 1980-02-13 |
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