JPH0330731B2 - - Google Patents
Info
- Publication number
- JPH0330731B2 JPH0330731B2 JP60185674A JP18567485A JPH0330731B2 JP H0330731 B2 JPH0330731 B2 JP H0330731B2 JP 60185674 A JP60185674 A JP 60185674A JP 18567485 A JP18567485 A JP 18567485A JP H0330731 B2 JPH0330731 B2 JP H0330731B2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- flange
- hub
- overload
- groove
- 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 - Lifetime
Links
- 230000033001 locomotion Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
- F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
- F16D7/06—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers
- F16D7/08—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers moving axially between engagement and disengagement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Transmission Devices (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、出力側に過負荷が作用した場合
に、入力側と出力側を遮断することにより回転機
械系を保護する目的で用いられる、いわゆるオー
バーロードクラツチに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention is used for the purpose of protecting a rotating mechanical system by cutting off the input side and the output side when an overload acts on the output side. Regarding the load clutch.
従来技術及びその問題点
従来、前記のような場合に通常用いられている
のはボールクラツチで、その最も単純なものはハ
ブとフランジの間にボールを介在させたものであ
る。そして、このタイプのものには、過負荷遮断
時のボールがすべり運動をする、フランジが軸方
向に移動する、等の欠点がある。Prior Art and its Problems Conventionally, ball clutches have been commonly used in the above-mentioned cases, the simplest of which is one in which a ball is interposed between a hub and a flange. This type has drawbacks such as the ball sliding during overload interruption and the flange moving in the axial direction.
上記欠点を改良するため、プレートを用いるよ
うにしたものにおいても、依然としてフランジの
軸方向規制が困難であるという問題がある。 Even in the case where plates are used to improve the above-mentioned drawbacks, there still remains the problem that it is difficult to regulate the axial direction of the flange.
そして、この問題点を機構的に解決しようとす
れば部品点数が多くなり、寸法的にも大きく、且
つコスト高となることを免れなかつた。 If an attempt was made to mechanically solve this problem, the number of parts would increase, the size would be large, and the cost would inevitably increase.
問題点を解決するための手段及び作用
この発明は、３段付ハブの中間段部に放射状に
ローラ収納用のポケツトを設け、前記中間段部に
嵌め合わされ前記ハブの径方向外側段部により軸
方向移動を阻止されたフランジには同じく放射状
にローラの径より小さい巾の溝を設けるととも
に、前記ローラに接して設けられるプレートにロ
ーラ方向へのバネ押し付け力を作用せしめるよう
にしたことを特徴とするものである。Means and Effects for Solving the Problems The present invention provides pockets for storing rollers radially in the middle step of a three-step hub, which are fitted into the middle step and are connected to the shaft by the radially outer step of the hub. The flange whose directional movement is prevented is similarly provided with radial grooves having a width smaller than the diameter of the roller, and a spring pressing force is applied to the plate provided in contact with the roller in the direction of the roller. It is something to do.
通常のトルク伝達時にはハブのポケツト内のロ
ーラはフランジの溝と２線接触しプレートとの間
に挾まれており、この状態でフランジからハブに
トルクが伝達される。 During normal torque transmission, the roller in the pocket of the hub is in two-line contact with the groove of the flange and held between the plate, and in this state torque is transmitted from the flange to the hub.
ハブに過負荷が作用すると、ローラはフランジ
の溝から乗り上げてフランジの平面部に移動し、
プレートとの間で挟まれてハブのポケツト内でこ
ろがり運動するのでフランジが空転するだけでハ
ブにはトルクは伝達されない。 When an overload is applied to the hub, the roller rides up from the groove of the flange and moves to the flat part of the flange.
Since it is sandwiched between the plate and rolls within the pocket of the hub, the flange simply spins and no torque is transmitted to the hub.
実施例
第１図は本発明のオーバーロードクラツチの全
体的構成図を示す。Embodiment FIG. 1 shows an overall block diagram of an overload clutch according to the present invention.
この断面図において中心線より上側に正常トル
ク伝達状態が示されている。 In this sectional view, a normal torque transmission state is shown above the center line.
３段付ハブ１の中間段部にはローラ４が収まる
ためのハブポケツト１′が設けられている。この
ハブポケツトの巾寸法はローラ４が収まりかつス
ムーズに回転できる最小値とする。 A hub pocket 1' in which a roller 4 is accommodated is provided at the middle step of the three-stage hub 1. The width of this hub pocket is set to a minimum value that allows the roller 4 to fit therein and rotate smoothly.
３段付きハブ１は、径方向内側段部である円筒
部、中間段部、及び径方向外側段部を有してな
る。フランジ２は、中間段部の外周面との間に軸
受８を介し、径方向外側段部の側面との間にスラ
ストワツシヤ７を介して、３段付きハブ１に嵌め
合わされている。このフランジ２の側面上には溝
２′が設けられている。溝２′の巾はローラ４の径
より小さい。 The three-stage hub 1 includes a cylindrical portion that is a radially inner step, an intermediate step, and a radially outer step. The flange 2 is fitted into the three-stage hub 1 with a bearing 8 interposed between the flange 2 and the outer peripheral surface of the intermediate step, and a thrust washer 7 interposed between the flange 2 and the side surface of the radially outer step. A groove 2' is provided on the side surface of this flange 2. The width of the groove 2' is smaller than the diameter of the roller 4.
ハブのポケツト１′にあるローラ４は、プレー
ト３、スラストベアリング９を介して皿バネ６の
押し付け力を受けて、フランジの溝２′と２線接
触にて噛み合う。この状態でトルクを伝達する。
第２図、第５図に正常トルク伝達時のローラ噛合
状態を示す。 The roller 4 in the pocket 1' of the hub receives the pressing force of the disc spring 6 via the plate 3 and the thrust bearing 9, and engages with the groove 2' of the flange in two-wire contact. Torque is transmitted in this state.
FIGS. 2 and 5 show the state of roller engagement during normal torque transmission.
皿バネ６のたわみ代を調節ナツト５の締め込み
量で調節し、伝達トルクの大きさを調節する。 The amount of deflection of the disc spring 6 is adjusted by the tightening amount of the adjustment nut 5, and the magnitude of the transmitted torque is adjusted.
第１図の中心線より下側に過負荷遮断時の状態
を示す。過負荷時にはローラ４がバネ荷重に抗し
てハブのポケツト１′内で調節ナツト５側に移動
し、フランジの溝２′より乗り上げてフランジ２
の平面部に移動する。ハブ１を固定しフランジ２
の回転をさらに続けるとローラ４はハブのポケツ
ト１′内に位置したままでフランジ２とプレート
３の間でころがり運動を行う。 The state at the time of overload interruption is shown below the center line of FIG. When overloaded, the roller 4 moves toward the adjustment nut 5 in the hub pocket 1' against the spring load, rides over the groove 2' of the flange, and slides into the flange 2.
Move to the flat surface. Fix hub 1 and flange 2
As the rotation of the roller 4 continues, the roller 4 performs a rolling movement between the flange 2 and the plate 3 while remaining in the pocket 1' of the hub.
そして、ローラ４とフランジ溝２′との位相が
合う位置までフランジが回転した時バネ荷重によ
り自動的にローラ４とフランジの溝２′が再び噛
合う。第３図、第６図に過負荷遮断時のローラ位
置を示す。 When the flange rotates to a position where the roller 4 and the flange groove 2' are in phase, the roller 4 and the flange groove 2' automatically engage again due to the spring load. Figures 3 and 6 show the roller positions when overload is cut off.
なお、過負荷頻度が少ない場合は、スラストベ
アリング９を組み込まず過負荷遮断時のローラ４
の動きをすべり摺動とするコスト節減型の実施例
も考えられる。 In addition, if the overload frequency is low, do not install the thrust bearing 9 and the roller 4 at the time of overload cutoff.
A cost-saving embodiment in which the movement is a sliding motion is also conceivable.
発明の効果
１ スプライン、すべりキー等の締結機能をハブ
外周上に有していないので部品点数も少なく、
低コストで製作でき、バツクラツシユの発生要
因も少ない。Effect of the invention 1: There are fewer parts because there is no fastening function such as splines or sliding keys on the outer circumference of the hub.
It can be manufactured at low cost and there are few causes of breakage.
２ 過負荷遮断時のローラの動きをころがり運動
にすることにより、すべり摺動型オーバーロー
ドクラツチに比して寿命が長くなり、ローラ乗
り上げ位置より再噛合位置への位相合わせ時に
要する回転力も小さくてすむ。2 By making the roller movement during overload cutoff into a rolling motion, the life is longer than that of a sliding type overload clutch, and the rotational force required for phase adjustment from the roller running position to the re-engagement position is small. I'm done.
３ ローラとフランジの溝は２線接触にて噛み合
うため、この部分でのバツクラツシユがない。
（ハブポケツトとローラ間の隙間のみのためコ
ントロールしやすい。）
４ フランジは過負荷時にも軸方向に移動しな
い。3 The roller and flange grooves engage with each other through two-wire contact, so there is no bumping in this area.
(Easy to control because there is only a gap between the hub pocket and the roller.) 4. The flange does not move in the axial direction even when overloaded.
５ 過負荷遮断時にはプレートの軸方向移動にて
検出できる。5. Overload cutoff can be detected by the axial movement of the plate.
６ 部品構成が簡単なため、組立、分解が容易で
メンテナンスも容易である。6. Because the parts are simple, assembly and disassembly are easy, and maintenance is also easy.
７ スラストベアリングを組込むことにより過負
荷遮断時のローラと移動部品間の接触がころが
り接触となり、すべり接触タイプよりも長寿命
化を図ることができる。7. By incorporating a thrust bearing, the contact between the roller and the moving parts during overload interruption becomes rolling contact, making it possible to achieve a longer life than the sliding contact type.
８ フランジの軸方向移動を阻止するハブの径方
向外側段部はハブと一体であるから、部品点数
が少なくてすみ、剛性が高く、直角度を正確に
出すことができる。そして、フランジの軸方向
位置も正確に設定することができる。8. Since the radially outer stepped portion of the hub that prevents axial movement of the flange is integral with the hub, the number of parts can be reduced, the rigidity is high, and the right angle can be accurately obtained. The axial position of the flange can also be set accurately.
第１図は縦断面図で上側は正常トルク伝達時
を、下側は過負荷遮断時を夫々示す。第２図、第
３図は要部横断面図で、夫々正常トルク伝達時と
過負荷遮断時を示す。第４図は要部分解斜視図、
第５図は第２図に対応する要部斜視図、第５図は
第２図に対応する要部斜視図、第６図は第３図に
対応する要部斜視図である。
１……ハブ、１′……ポケツト、２……フラン
ジ、２′……溝、３……プレート、４……ローラ。
FIG. 1 is a longitudinal sectional view, with the upper side showing normal torque transmission and the lower side showing overload cutoff. FIGS. 2 and 3 are cross-sectional views of main parts, showing the state during normal torque transmission and the state when overload is cut off, respectively. Figure 4 is an exploded perspective view of the main parts.
5 is a perspective view of a main part corresponding to FIG. 2, FIG. 5 is a perspective view of a main part corresponding to FIG. 2, and FIG. 6 is a perspective view of a main part corresponding to FIG. 1...Hub, 1'...Pocket, 2...Flange, 2'...Groove, 3...Plate, 4...Roller.
Claims (1)
用のポケツトを設け、前記中間段部に嵌め合わさ
れ前記ハブの径方向外側段部により軸方向移動を
阻止されたフランジには同じく放射状にローラの
径より小さい巾の溝を設けるとともに、前記ロー
ラに接して設けられるプレートにローラ方向への
バネ押し付け力を作用せしめるようにしたことを
特徴とするローラ式オーバーロードクラツチ。1. Pockets for storing rollers are provided radially in the intermediate step of the three-stage hub, and pockets for storing rollers are provided radially in the flange that is fitted into the intermediate step and is prevented from moving in the axial direction by the radially outer step of the hub. 1. A roller type overload clutch characterized in that a groove having a width smaller than the diameter of the roller is provided, and a spring pressing force is applied to a plate provided in contact with the roller in the direction of the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18567485A JPS6249027A (en) | 1985-08-26 | 1985-08-26 | Roller type overload clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18567485A JPS6249027A (en) | 1985-08-26 | 1985-08-26 | Roller type overload clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6249027A JPS6249027A (en) | 1987-03-03 |
| JPH0330731B2 true JPH0330731B2 (en) | 1991-05-01 |
Family
ID=16174882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18567485A Granted JPS6249027A (en) | 1985-08-26 | 1985-08-26 | Roller type overload clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6249027A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0768981B2 (en) * | 1990-11-26 | 1995-07-26 | 株式会社椿本エマソン | Overload clutch |
| CN113662667B (en) * | 2021-08-19 | 2022-09-02 | 常州唯精医疗机器人有限公司 | Manual clutch device and integrated joint and surgical robot with same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581289A (en) * | 1981-06-25 | 1983-01-06 | シャープ株式会社 | Detection and indication of battery voltage |
-
1985
- 1985-08-26 JP JP18567485A patent/JPS6249027A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581289A (en) * | 1981-06-25 | 1983-01-06 | シャープ株式会社 | Detection and indication of battery voltage |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6249027A (en) | 1987-03-03 |
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