JPWO2015133360A1 - Reverse input cutoff clutch - Google Patents
Reverse input cutoff clutch Download PDFInfo
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- JPWO2015133360A1 JPWO2015133360A1 JP2016506447A JP2016506447A JPWO2015133360A1 JP WO2015133360 A1 JPWO2015133360 A1 JP WO2015133360A1 JP 2016506447 A JP2016506447 A JP 2016506447A JP 2016506447 A JP2016506447 A JP 2016506447A JP WO2015133360 A1 JPWO2015133360 A1 JP WO2015133360A1
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- input
- rotational force
- outer ring
- output shaft
- shaft
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000003449 preventive effect Effects 0.000 claims abstract description 20
- 239000011148 porous material Substances 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000005470 impregnation Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 230000002457 bidirectional effect Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
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- 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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
- F16D41/10—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
- F16D41/105—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing the intermediate members being of circular cross-section, of only one size and wedging by rolling movement not having an axial component between inner and outer races, one of which is cylindrical
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- 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
- F16D2300/00—Special features for couplings or clutches
- F16D2300/06—Lubrication details not provided for in group F16D13/74
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
本発明の目的は、焼結部材で形成され防錆油が含油される外輪部材を有した逆入力遮断クラッチの、稼働時間の増大に伴う摩擦抵抗の上昇を抑制することである。回転力が入力される入力軸１２と、回転力を出力する出力軸１３と、焼結部材で製造される外輪部材１４とを備えた逆入力遮断クラッチにおいて、外輪部材１４は、焼結部材の細孔に樹脂を含浸させた後に防錆油を含油させて形成される。逆入力遮断クラッチでは、入力軸１２に回転力が与えられると出力軸１３の回転を許可し、出力軸１３に回転力が与えられると入力軸１２の回転を阻止する伝達機構部を収納する。An object of the present invention is to suppress an increase in frictional resistance associated with an increase in operating time of a reverse input shut-off clutch having an outer ring member formed of a sintered member and containing rust preventive oil. In a reverse input shut-off clutch including an input shaft 12 to which rotational force is input, an output shaft 13 that outputs rotational force, and an outer ring member 14 made of a sintered member, the outer ring member 14 is made of a sintered member. It is formed by impregnating a resin with pores and then impregnating rust preventive oil. The reverse input cutoff clutch houses a transmission mechanism that allows rotation of the output shaft 13 when a rotational force is applied to the input shaft 12 and prevents the rotation of the input shaft 12 when a rotational force is applied to the output shaft 13.
Description
本発明は、入力側からの双方向の回転力は出力側に伝達されるが、出力側からの回転力は入力側に伝達されない逆入力遮断クラッチに関する。 The present invention relates to a reverse input cutoff clutch in which bidirectional torque from the input side is transmitted to the output side, but torque from the output side is not transmitted to the input side.
逆入力遮断クラッチは、入力側からの双方向の駆動力は出力側に伝達するが、出力側からの回転力は入力側への伝達を阻止するものである（例えば、特許文献１参照）。 In the reverse input cutoff clutch, bidirectional driving force from the input side is transmitted to the output side, but rotational force from the output side is prevented from transmitting to the input side (see, for example, Patent Document 1).
図５は、従来の逆入力遮断クラッチ１１の一例を示す外観構成図である。逆入力遮断クラッチ１１は、入力軸１２に入力される正転方向及び逆転方向の双方向の回転力を出力軸１３に伝達するものであり、入力軸１２からの双方向の回転力は出力軸１３に伝達するが、出力軸１３からの回転力は入力軸１２に伝達しない。外輪１４には、この機能を達成するための伝達機構部が収納され、この伝達機能は、入力軸１２に回転力が与えられると出力軸１３の回転を許可し、出力軸１３に回転力が与えられると入力軸１２の回転を阻止する機構を有する。外輪１４の入力軸１２には蓋部１５が設けられ、外輪１４の出力軸１３側には側壁部１６が形成されている。通常、外輪１４は焼結部材で形成されるが、焼結部材はポーラス（多孔質）であって、表面等に無数の細孔が存在し、防錆効果を高めるためにこの細孔に防錆油を真空含油している。 FIG. 5 is an external configuration diagram showing an example of a conventional reverse input cutoff clutch 11. The reverse input shut-off clutch 11 transmits a bidirectional rotational force input to the input shaft 12 in the forward direction and the reverse direction to the output shaft 13, and the bidirectional rotational force from the input shaft 12 is applied to the output shaft. 13, but the rotational force from the output shaft 13 is not transmitted to the input shaft 12. The outer ring 14 accommodates a transmission mechanism for achieving this function. This transmission function allows the output shaft 13 to rotate when a rotational force is applied to the input shaft 12, and the rotational force is applied to the output shaft 13. When given, it has a mechanism for preventing the rotation of the input shaft 12. A lid portion 15 is provided on the input shaft 12 of the outer ring 14, and a side wall portion 16 is formed on the output shaft 13 side of the outer ring 14. Normally, the outer ring 14 is formed of a sintered member, but the sintered member is porous and has numerous pores on the surface and the like. Rust oil is vacuum-impregnated.
しかし、焼結部材の細孔には相当量の防錆油が含油されるので、逆入力遮断クラッチを高速・高温環境で使用すると細孔内部の防錆油が内部表面に過剰に染み出し、逆入力遮断クラッチの稼働時間が増加した場合には、摩耗による摩擦粉と混ざり合う現象が発生することが判明した。そして、防錆油と摩擦粉との混ざり量が一定量以上となると、これらは粘着物質を形成する。粘着物質は、逆入力遮断クラッチの摩擦抵抗、つまり、入力軸から出力軸に動力伝達を行う際の摩擦損失、を増大させ、逆入力遮断クラッチの機能を阻害することになる。 However, since a considerable amount of rust-preventive oil is contained in the pores of the sintered member, if the reverse input cutoff clutch is used in a high-speed, high-temperature environment, the rust-preventive oil inside the pores will exude excessively on the internal surface, It has been found that when the operating time of the reverse input cutoff clutch increases, a phenomenon of mixing with friction powder due to wear occurs. And when the amount of mixing of the rust preventive oil and the friction powder becomes a certain amount or more, these form an adhesive substance. The adhesive substance increases the frictional resistance of the reverse input cutoff clutch, that is, the friction loss when power is transmitted from the input shaft to the output shaft, and inhibits the function of the reverse input cutoff clutch.
本発明の目的は、焼結部材で形成され防錆油が含油される外輪を有した逆入力遮断クラッチの摩擦抵抗の上昇を抑制できる逆入力遮断クラッチを提供することである。 The objective of this invention is providing the reverse input interruption | blocking clutch which can suppress the raise of the frictional resistance of the reverse input interruption | blocking clutch formed with the sintered member and having the outer ring | wheel which contains antirust oil.
本発明の逆入力遮断クラッチは、回転力が入力される入力軸と、回転力を出力する出力軸と、前記入力軸に回転力が与えられると前記出力軸の回転を許可し前記出力軸に回転力が与えられると前記入力軸の回転を阻止する伝達機構部と、
焼結部材の細孔に樹脂を含浸させた後に防錆油を含油させて形成され前記伝達機構部を収納した外輪とを備えたことを特徴とする。The reverse input shut-off clutch of the present invention includes an input shaft to which rotational force is input, an output shaft that outputs rotational force, and rotation of the output shaft when rotational force is applied to the input shaft. A transmission mechanism that prevents rotation of the input shaft when a rotational force is applied;
It is characterized by comprising an outer ring formed by impregnating a resin in the pores of the sintered member and then impregnating rust preventive oil and housing the transmission mechanism portion.
本発明によれば、焼結部材で形成された外輪に樹脂を含浸させた後に防錆油を含油させるので、外輪の含油量を一定範囲内とすることができる。これにより、細孔内部の防錆油が外輪の表面に過剰に染み出すことを抑制できるので、防錆油と摩擦粉とが混ざり合った粘着物質を抑制でき、逆入力遮断クラッチの動力伝達時における摩擦抵抗の上昇を抑制できる。また、防錆油が外輪の表面付近に滞在することになるので防錆効果を保つこともできる。 According to the present invention, since the outer ring formed of the sintered member is impregnated with the resin after impregnating the resin, the oil content of the outer ring can be kept within a certain range. As a result, the rust preventive oil inside the pores can be prevented from exuding excessively on the surface of the outer ring, so that the adhesive substance mixed with the rust preventive oil and the friction powder can be suppressed. An increase in frictional resistance can be suppressed. Moreover, since the rust preventive oil stays near the surface of the outer ring, the rust preventive effect can be maintained.
以下、本発明の実施形態を説明する。図１は、本発明の実施形態に係る逆入力遮断クラッチ１１の一例を示す説明図であり、図１（ａ）は構成図、図１（ｂ）は入力軸１２の斜視図、図１（ｃ）は出力軸１３の斜視図である。図１（ａ）では上半分を断面図で示している。 Embodiments of the present invention will be described below. FIG. 1 is an explanatory view showing an example of a reverse input cutoff clutch 11 according to an embodiment of the present invention, where FIG. 1 (a) is a configuration diagram, FIG. 1 (b) is a perspective view of an input shaft 12, and FIG. c) is a perspective view of the output shaft 13. In FIG. 1A, the upper half is shown in a sectional view.
逆入力遮断クラッチ１１は、入力軸１２に入力される正転方向及び逆転方向の双方向の回転力（動力）を出力軸１３に伝達するものであり、入力軸１２からの双方向の回転力は出力軸１３に伝達するが、出力軸１３からの回転力は入力軸１２に伝達しない。外輪１４には、この機能を達成するための伝達機構部が収納され、外輪１４の入力軸１２には蓋部１５が設けられ、外輪１４の出力軸１３側には側壁部１６が形成されている。伝達機構部は、入力軸１２に係合する入力部材１２Ａと、出力軸１３に設けられた出力部材１３Ａと、外輪１４の内面と当接する転動部材１７とを有する。 The reverse input cut-off clutch 11 transmits bidirectional rotational force (power) in the forward and reverse directions input to the input shaft 12 to the output shaft 13, and bidirectional rotational force from the input shaft 12. Is transmitted to the output shaft 13 but the rotational force from the output shaft 13 is not transmitted to the input shaft 12. The outer ring 14 stores a transmission mechanism for achieving this function, the input shaft 12 of the outer ring 14 is provided with a lid 15, and the side wall 16 is formed on the output shaft 13 side of the outer ring 14. Yes. The transmission mechanism includes an input member 12A that engages with the input shaft 12, an output member 13A that is provided on the output shaft 13, and a rolling member 17 that contacts the inner surface of the outer ring.
入力軸１２は、図１（ｂ）に示すように、入力部材１２Ａに結合し、この入力部材１２Ａには複数の入力係合部１２Ｂが設けられている。出力軸１３は、図１（ｃ）に示すように、出力部材１３Ａを有し、この出力部材１３Ａには複数の出力係合部１３Ｂが設けられている。入力軸１２と出力軸１３とは、複数の入力係合部１２Ｂと複数の出力係合部１３Ｂとが互い違いに嵌合し、入力部材１２Ａの平面部と出力部材１３Ａの平面部とがフラット面接触状態で当接する。 As shown in FIG. 1B, the input shaft 12 is coupled to an input member 12A, and the input member 12A is provided with a plurality of input engagement portions 12B. As shown in FIG. 1C, the output shaft 13 has an output member 13A, and the output member 13A is provided with a plurality of output engaging portions 13B. The input shaft 12 and the output shaft 13 have a plurality of input engagement portions 12B and a plurality of output engagement portions 13B that are alternately fitted, and a flat portion of the input member 12A and a flat portion of the output member 13A are flat surfaces. Contact in contact.
図２は、本発明の実施形態における逆入力遮断クラッチ１１の動作説明図である。図２（ａ）は入力軸１２にも出力軸１３にも回転力が加わっていない静止状態のときの転動部材１７、入力係合部１２Ｂ、出力係合部１３Ｂの位置関係の説明図、図２（ｂ）は出力軸１３に反時計方向の回転力が加わった状態のときの転動部材１７、入力係合部１２Ｂ、出力係合部１３Ｂの位置関係の説明図、図２（ｃ）は入力軸１２に反時計方向の回転力が加わった状態のときの転動部材１７、入力係合部１２Ｂ、出力係合部１３Ｂの位置関係の説明図である。 FIG. 2 is an explanatory view of the operation of the reverse input cutoff clutch 11 in the embodiment of the present invention. FIG. 2A is an explanatory diagram of the positional relationship among the rolling member 17, the input engagement portion 12B, and the output engagement portion 13B in a stationary state in which no rotational force is applied to either the input shaft 12 or the output shaft 13. FIG. 2B is an explanatory diagram of the positional relationship among the rolling member 17, the input engagement portion 12B, and the output engagement portion 13B when a counterclockwise rotational force is applied to the output shaft 13. FIG. ) Is an explanatory diagram of the positional relationship of the rolling member 17, the input engagement portion 12B, and the output engagement portion 13B when a counterclockwise rotational force is applied to the input shaft 12.
図２（ａ）に示すように、入力軸１２にも出力軸１３にも回転力が加わっていない静止状態のときは、転動部材１７は出力係合部１３Ｂのほぼ中央に位置する。また、出力係合部１３Ｂには転動部材１７が僅かな距離を保って対面し、転動部材１７は外輪１４の内壁面１４Ａに僅かな間隔を保って対面している。 As shown in FIG. 2A, in a stationary state in which no rotational force is applied to either the input shaft 12 or the output shaft 13, the rolling member 17 is positioned substantially at the center of the output engagement portion 13B. Further, the rolling member 17 faces the output engagement portion 13B with a slight distance, and the rolling member 17 faces the inner wall surface 14A of the outer ring 14 with a slight gap.
いま、図２（ａ）の静止状態から出力軸１３に反時計方向の回転力が加わったとすると、図２（ｂ）に示すように、出力係合部１３Ｂには左矢印方向に回転力がかかり、出力係合部１３Ｂは左矢印方向に動く。出力係合部１３Ｂは一定回転範囲（隣り合う入力係合部１２Ｂの間隔）では自由かつ円滑に独立動作するので、入力係合部１２Ｂは動作しない。従って、出力係合部１３Ｂが左矢印方向に動くのに伴い、転動部材１７は出力係合部１３Ｂにより上方に押し上げられるようになる。これにより、出力係合部１３Ｂと外輪１４の内壁面１４Ａとの間隙が狭くなり、転動部材１７は出力係合部１３Ｂと外輪１４の内壁面１４Ａとの間に食い込みロック状態となる。このようにして、出力軸１３に加えられた回転力は阻止され、入力軸１２に伝達されないようにしている。 Now, assuming that a counterclockwise rotational force is applied to the output shaft 13 from the stationary state of FIG. 2A, the rotational force is applied to the output engagement portion 13B in the direction of the left arrow as shown in FIG. 2B. As a result, the output engagement portion 13B moves in the direction of the left arrow. Since the output engagement portion 13B operates freely and smoothly independently within a certain rotation range (interval between adjacent input engagement portions 12B), the input engagement portion 12B does not operate. Accordingly, as the output engagement portion 13B moves in the left arrow direction, the rolling member 17 is pushed upward by the output engagement portion 13B. As a result, the gap between the output engagement portion 13B and the inner wall surface 14A of the outer ring 14 is narrowed, and the rolling member 17 enters the locked state between the output engagement portion 13B and the inner wall surface 14A of the outer ring 14. In this way, the rotational force applied to the output shaft 13 is blocked and is not transmitted to the input shaft 12.
一方、図２（ａ）の静止状態から入力軸１２に反時計方向の回転力が加わったとすると、図２（ｃ）に示すように、入力係合部１２Ｂが左矢印方向に回動して、まず、入力係合部１２Ｂの側面が出力係合部１３Ｂの側面または転動部材１７の側面に当接する。さらに、入力係合部１２Ｂが左矢印方向に回動すると、入力係合部１２Ｂの側面は、出力係合部１３Ｂ及び転動部材１７の側面の双方に当接し、入力係合部１２Ｂは、転動部材１７を出力係合部１３Ｂと外輪１４の内壁面１４Ａとの間に食い込ませることなく、出力係合部１３Ｂ及び転動部材１７を左矢印方向に押し出す。つまり、入力軸１２が反時計方向に回転すれば、出力軸１３は入力軸１２と一緒に回転し、入力軸１２に加わる回転力は出力軸１３に伝達される。入力軸１２が時計方向に回転する場合にも、方向が異なるだけであり、入力係合部１２Ｂは出力係合部１３Ｂ及び転動部材１７に当接し、同様に、出力軸１３は入力軸１２と一緒に回転し、入力軸１２に加わる回転力は出力軸１３に伝達される。 On the other hand, if a counterclockwise rotational force is applied to the input shaft 12 from the stationary state of FIG. 2 (a), the input engagement portion 12B rotates in the direction of the left arrow as shown in FIG. 2 (c). First, the side surface of the input engagement portion 12B comes into contact with the side surface of the output engagement portion 13B or the side surface of the rolling member 17. Further, when the input engagement portion 12B rotates in the left arrow direction, the side surface of the input engagement portion 12B comes into contact with both the output engagement portion 13B and the side surface of the rolling member 17, and the input engagement portion 12B Without engaging the rolling member 17 between the output engaging portion 13B and the inner wall surface 14A of the outer ring 14, the output engaging portion 13B and the rolling member 17 are pushed out in the left arrow direction. That is, if the input shaft 12 rotates counterclockwise, the output shaft 13 rotates together with the input shaft 12, and the rotational force applied to the input shaft 12 is transmitted to the output shaft 13. Even when the input shaft 12 rotates in the clockwise direction, only the direction is different, the input engagement portion 12B abuts on the output engagement portion 13B and the rolling member 17, and similarly, the output shaft 13 is the input shaft 12 The rotational force applied to the input shaft 12 is transmitted to the output shaft 13.
このような伝達機構を収納する外輪１４は焼結部材で形成される。そして、外輪部材１４は、焼結部材の内部の細孔に樹脂を含浸させ、その後に防錆油を含油させて形成される。樹脂は、例えば真空で含浸（真空含浸）させ、防錆油は真空で含油（真空含油）させる。 The outer ring 14 that houses such a transmission mechanism is formed of a sintered member. The outer ring member 14 is formed by impregnating the pores inside the sintered member with resin and then impregnating rust preventive oil. The resin is impregnated with vacuum (vacuum impregnation), for example, and the rust preventive oil is impregnated with vacuum (vacuum impregnation).
図３は、外輪の焼結部材１８に対する樹脂の含浸及び防錆油の含油の説明図である。図３（ａ）に示すように、外輪１４の焼結部材１８には細孔１９が存在する。図３（ｂ）に示すように、これら細孔１９に、まず、樹脂２０を含浸する。樹脂２０の含浸量は、これら細孔１９を完全に閉塞する量より少なめの量とする。外輪１４の防錆効果を保つために必要な最低限の防錆油が含油できる空隙２１は残しておく。次に、図３（ｃ）に示すように、空隙２１に防錆油２２を含油する。これにより、防錆油２２が外輪１４の表面付近に滞在し、防錆効果を保つことができる。 FIG. 3 is an explanatory diagram of resin impregnation and rust preventive oil impregnation in the sintered member 18 of the outer ring. As shown in FIG. 3A, the sintered member 18 of the outer ring 14 has pores 19. As shown in FIG. 3B, the pores 19 are first impregnated with a resin 20. The amount of impregnation of the resin 20 is set to a smaller amount than the amount that completely blocks the pores 19. A gap 21 that can contain the minimum rust preventive oil necessary for maintaining the rust preventive effect of the outer ring 14 is left. Next, as shown in FIG. 3 (c), the rust preventive oil 22 is impregnated in the gap 21. Thereby, the antirust oil 22 stays in the vicinity of the surface of the outer ring 14, and the antirust effect can be maintained.
このように、細孔１９に樹脂２０を含浸して細孔１９の空隙を小さくし、残りの空隙２１に防錆油２２を含油するので、防錆油２２の量が少なくなって適正化される。これにより、細孔１９の内部の防錆油２２が外輪１４の表面に過剰に染み出すことを抑制できる。つまり、逆入力遮断クラッチの稼働時間の増大した場合においても、防錆油２２と外輪１４の摩擦粉とが混ざり合った粘着物質を抑制でき、逆入力遮断クラッチの摩擦抵抗を上昇させる粘着物質を抑制できる。また、適正な量の防錆油２２が外輪の表面付近に滞在することになるので防錆効果も保つことができる。 Thus, since the pores 19 are impregnated with the resin 20 to reduce the voids of the pores 19 and the remaining voids 21 are impregnated with the antirust oil 22, the amount of the antirust oil 22 is reduced and optimized. The Thereby, it can suppress that the rust preventive oil 22 inside the pore 19 exudes excessively on the surface of the outer ring 14. That is, even when the operating time of the reverse input cutoff clutch is increased, the adhesive substance in which the antirust oil 22 and the friction powder of the outer ring 14 are mixed can be suppressed, and the adhesive substance that increases the frictional resistance of the reverse input cutoff clutch can be suppressed. Can be suppressed. Further, since an appropriate amount of the rust preventive oil 22 stays near the outer ring surface, the rust preventive effect can be maintained.
図４は、逆入力遮断クラッチを所定の時間稼働させた耐久試験の後に、摩擦抵抗（入力軸を回転させるときに作用する制動トルク）が変動した状態を、使用雰囲気温度別に表示するグラフである。図１において、黒丸は従来の逆入力遮断クラッチ（防錆油のみを含油したもの）のデータ、×は本発明の実施形態に係る逆入力遮断クラッチのデータである。
これから分かるように、従来の逆入力遮断クラッチでは、耐久試験の後に、摩擦抵抗の大きさは軒並み増加し、その増加割合は雰囲気温度が高くなるにつれ大きくなっている。例えば、６０℃の場合には、制動トルクの変動比は５０％〜７０％であり、８０℃になると、１０５％〜１３０％となっている。FIG. 4 is a graph that displays the state in which the frictional resistance (braking torque acting when the input shaft is rotated) fluctuates after the durability test in which the reverse input cutoff clutch has been operated for a predetermined time, according to the operating ambient temperature. . In FIG. 1, black circles are data of a conventional reverse input cutoff clutch (containing only rust preventive oil), and x is data of a reverse input cutoff clutch according to an embodiment of the present invention.
As can be seen, in the conventional reverse input cutoff clutch, after the durability test, the magnitude of the frictional resistance increases across the board, and the increase rate increases as the ambient temperature increases. For example, at 60 ° C., the variation ratio of the braking torque is 50% to 70%, and at 80 ° C., it is 105% to 130%.
一方、本発明の実施形態に係る逆入力遮断クラッチでは、６０℃の場合には制動トルクの変動比は１０％未満である。従来のものとの比較において、制動トルクの変動比は、防錆油と摩擦粉とが混ざり合って形成された粘着物質の影響であり、本発明の実施形態に係る逆入力遮断クラッチの変動比が小さいのは、粘着物質が少ないためである。 On the other hand, in the reverse input cutoff clutch according to the embodiment of the present invention, at 60 ° C., the variation ratio of the braking torque is less than 10%. In comparison with the conventional one, the fluctuation ratio of the braking torque is an influence of the adhesive substance formed by mixing the rust preventive oil and the friction powder, and the fluctuation ratio of the reverse input cutoff clutch according to the embodiment of the present invention. Is small because there are few adhesive substances.
以上、本発明の実施形態を説明したが、この実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。この新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。この実施形態やその変形は、本発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 As mentioned above, although embodiment of this invention was described, this embodiment is shown as an example and is not intending limiting the range of invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the present invention, and are included in the invention described in the claims and the equivalents thereof.
１１ 逆入力遮断クラッチ、１２ 入力軸、１２Ａ 入力係合部、１３ 出力軸、１３Ａ 出力係合部、１４ 外輪、１４Ａ 内壁面、１５ 蓋部、１６ 側壁部、１７ 転動部材、１８ 焼結部材、１９ 細孔、２０ 樹脂、２１ 空隙、２２ 防錆油 11 reverse input cutoff clutch, 12 input shaft, 12A input engagement portion, 13 output shaft, 13A output engagement portion, 14 outer ring, 14A inner wall surface, 15 lid portion, 16 side wall portion, 17 rolling member, 18 sintered member , 19 pores, 20 resin, 21 voids, 22 anti-rust oil
本発明の逆入力遮断クラッチは、回転力が入力される入力軸と、回転力を出力する出力軸と、前記入力軸に回転力が与えられると前記出力軸の回転を許可し前記出力軸に回転力が与えられると前記入力軸の回転を阻止する伝達機構部と、前記伝達機構部を収納した外輪とを備えており、
前記外輪が、焼結部材の内部細孔に樹脂を含浸させた後に防錆油を含油させて形成されるものであることを特徴とする。
The reverse input shut-off clutch of the present invention includes an input shaft to which rotational force is input, an output shaft that outputs rotational force, and rotation of the output shaft when rotational force is applied to the input shaft. A transmission mechanism that prevents rotation of the input shaft when a rotational force is applied; and an outer ring that houses the transmission mechanism.
The outer ring, characterized in that the rust-preventive oil after impregnating the resin within the pores of the sintered member is shall be formed by oil-impregnated.
Claims (1)
回転力を出力する出力軸と、
前記入力軸に回転力が与えられると前記出力軸の回転を許可し前記出力軸に回転力が与えられると前記入力軸の回転を阻止する伝達機構部と、
焼結部材の内部細孔に樹脂を含浸させた後に防錆油を含油させて形成され前記伝達機構部を収納した外輪とを備えたことを特徴とする逆入力遮断クラッチ。An input shaft to which rotational force is input;
An output shaft that outputs rotational force;
A transmission mechanism that allows rotation of the output shaft when a rotational force is applied to the input shaft and prevents rotation of the input shaft when a rotational force is applied to the output shaft;
A reverse input cutoff clutch comprising an outer ring formed by impregnating a resin in the internal pores of a sintered member and then impregnating rust preventive oil and containing the transmission mechanism.
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| JP2014041846 | 2014-03-04 | ||
| JP2014041846 | 2014-03-04 | ||
| PCT/JP2015/055597 WO2015133360A1 (en) | 2014-03-04 | 2015-02-26 | Reverse input blocking clutch |
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| KR (1) | KR102308398B1 (en) |
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|---|---|---|---|---|
| JPH09104764A (en) * | 1995-10-11 | 1997-04-22 | Hitachi Chem Co Ltd | Wet friction material |
| JP2002294465A (en) * | 2001-03-28 | 2002-10-09 | Ntn Corp | Surface treated film, rolling bearing, and surface treatment method |
| JP2007032634A (en) * | 2005-07-25 | 2007-02-08 | Origin Electric Co Ltd | Reverse input cutoff clutch |
| JP2009210025A (en) * | 2008-03-04 | 2009-09-17 | Ntn Corp | Reverse input preventing clutch |
| JP2011226632A (en) * | 2010-03-30 | 2011-11-10 | Ntn Corp | Rolling bearing device |
| JP2014031875A (en) * | 2012-08-06 | 2014-02-20 | Origin Electric Co Ltd | One-way clutch |
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| JP5213355B2 (en) * | 2007-05-23 | 2013-06-19 | 三洋電機株式会社 | Fuel cell system and hydrogen supply device |
| JP2009210024A (en) * | 2008-03-04 | 2009-09-17 | Ntn Corp | Reverse input preventing clutch |
| JP5458118B2 (en) * | 2012-01-11 | 2014-04-02 | オリジン電気株式会社 | Reverse input cutoff clutch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09104764A (en) * | 1995-10-11 | 1997-04-22 | Hitachi Chem Co Ltd | Wet friction material |
| JP2002294465A (en) * | 2001-03-28 | 2002-10-09 | Ntn Corp | Surface treated film, rolling bearing, and surface treatment method |
| JP2007032634A (en) * | 2005-07-25 | 2007-02-08 | Origin Electric Co Ltd | Reverse input cutoff clutch |
| JP2009210025A (en) * | 2008-03-04 | 2009-09-17 | Ntn Corp | Reverse input preventing clutch |
| JP2011226632A (en) * | 2010-03-30 | 2011-11-10 | Ntn Corp | Rolling bearing device |
| JP2014031875A (en) * | 2012-08-06 | 2014-02-20 | Origin Electric Co Ltd | One-way clutch |
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| WO2015133360A1 (en) | 2015-09-11 |
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| KR102308398B1 (en) | 2021-10-05 |
| JP6130587B2 (en) | 2017-05-17 |
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| KR20160128323A (en) | 2016-11-07 |
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