WO2015133360A1 - 逆入力遮断クラッチ - Google Patents
逆入力遮断クラッチ Download PDFInfo
- Publication number
- WO2015133360A1 WO2015133360A1 PCT/JP2015/055597 JP2015055597W WO2015133360A1 WO 2015133360 A1 WO2015133360 A1 WO 2015133360A1 JP 2015055597 W JP2015055597 W JP 2015055597W WO 2015133360 A1 WO2015133360 A1 WO 2015133360A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- input
- rotational force
- outer ring
- output shaft
- shaft
- 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.)
- Ceased
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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
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
-
- 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
-
- 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
Definitions
- the present invention relates to a reverse input cut-off 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.
- the reverse input cutoff clutch transmits bidirectional driving force from the input side to the output side, but prevents rotational force from the output side from being transmitted to the input side (see, for example, Patent Document 1).
- 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.
- 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.
- An object of the present invention is to provide a reverse input cutoff clutch capable of suppressing an increase in frictional resistance of a reverse input cutoff clutch having an outer ring formed of a sintered member and containing rust preventive oil.
- 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.
- the oil content of the outer ring can be kept within a certain range.
- 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.
- the rust preventive oil stays near the surface of the outer ring, the rust preventive effect can be maintained.
- blocking clutch which concerns on embodiment of this invention.
- blocking clutch which concerns on embodiment of this invention.
- the graph which shows the relationship between the fluctuation
- the external appearance block diagram which shows an example of the conventional reverse input interruption
- 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.
- FIG. 1A the upper half is shown in a sectional view.
- 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.
- 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.
- 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.
- FIG. 2 is an operation explanatory diagram 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.
- the rolling member 17 is positioned substantially at the center of the output engaging portion 13B in a stationary state in which no rotational force is applied to either the input shaft 12 or the output shaft 13. 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.
- 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.
- 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).
- FIG. 3 is an explanatory view of resin impregnation and rust preventive oil impregnation for the outer ring sintered member 18.
- the sintered member 18 of the outer ring 14 has pores 19.
- 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.
- 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.
- the amount of the antirust oil 22 is reduced and optimized.
- 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 rust preventive 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.
- FIG. 4 is a graph that displays the state in which the frictional resistance (braking torque acting when rotating the input shaft) fluctuates after the endurance test in which the reverse input cutoff clutch is operated for a predetermined time, for each operating ambient temperature.
- black circles are data of a conventional reverse input cutoff clutch (containing only rust preventive oil)
- x is data of a reverse input cutoff clutch according to an embodiment of the present invention.
- 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 fluctuation ratio of the braking torque is 50% to 70%, and at 80 ° C., it is 105% to 130%.
- the variation ratio of the braking torque is less than 10%.
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
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。
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。
Claims (1)
- 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。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020167024175A KR102308398B1 (ko) | 2014-03-04 | 2015-02-26 | 역입력 차단 클러치 |
| CN201580011642.4A CN106062405B (zh) | 2014-03-04 | 2015-02-26 | 反向输入阻断离合器 |
| JP2016506447A JP6130587B2 (ja) | 2014-03-04 | 2015-02-26 | 逆入力遮断クラッチの製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-041846 | 2014-03-04 | ||
| JP2014041846 | 2014-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015133360A1 true WO2015133360A1 (ja) | 2015-09-11 |
Family
ID=54055169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2015/055597 Ceased WO2015133360A1 (ja) | 2014-03-04 | 2015-02-26 | 逆入力遮断クラッチ |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6130587B2 (ja) |
| KR (1) | KR102308398B1 (ja) |
| CN (1) | CN106062405B (ja) |
| TW (1) | TWI646272B (ja) |
| WO (1) | WO2015133360A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002294465A (ja) * | 2001-03-28 | 2002-10-09 | Ntn Corp | 表面処理膜、転がり軸受および表面処理方法 |
| JP2009210025A (ja) * | 2008-03-04 | 2009-09-17 | Ntn Corp | 逆入力防止クラッチ |
| JP2011226632A (ja) * | 2010-03-30 | 2011-11-10 | Ntn Corp | 転がり軸受装置 |
| JP2014031875A (ja) * | 2012-08-06 | 2014-02-20 | Origin Electric Co Ltd | ワンウェイクラッチ |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09104764A (ja) * | 1995-10-11 | 1997-04-22 | Hitachi Chem Co Ltd | 湿式摩擦材 |
| JP2007032634A (ja) * | 2005-07-25 | 2007-02-08 | Origin Electric Co Ltd | 逆入力遮断クラッチ |
| JP5213355B2 (ja) * | 2007-05-23 | 2013-06-19 | 三洋電機株式会社 | 燃料電池システム及び水素補給装置 |
| JP2009210024A (ja) * | 2008-03-04 | 2009-09-17 | Ntn Corp | 逆入力防止クラッチ |
| JP5458118B2 (ja) * | 2012-01-11 | 2014-04-02 | オリジン電気株式会社 | 逆入力遮断クラッチ |
-
2015
- 2015-02-26 WO PCT/JP2015/055597 patent/WO2015133360A1/ja not_active Ceased
- 2015-02-26 CN CN201580011642.4A patent/CN106062405B/zh active Active
- 2015-02-26 JP JP2016506447A patent/JP6130587B2/ja active Active
- 2015-02-26 KR KR1020167024175A patent/KR102308398B1/ko active Active
- 2015-03-04 TW TW104106750A patent/TWI646272B/zh active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002294465A (ja) * | 2001-03-28 | 2002-10-09 | Ntn Corp | 表面処理膜、転がり軸受および表面処理方法 |
| JP2009210025A (ja) * | 2008-03-04 | 2009-09-17 | Ntn Corp | 逆入力防止クラッチ |
| JP2011226632A (ja) * | 2010-03-30 | 2011-11-10 | Ntn Corp | 転がり軸受装置 |
| JP2014031875A (ja) * | 2012-08-06 | 2014-02-20 | Origin Electric Co Ltd | ワンウェイクラッチ |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106062405A (zh) | 2016-10-26 |
| CN106062405B (zh) | 2018-07-10 |
| JP6130587B2 (ja) | 2017-05-17 |
| JPWO2015133360A1 (ja) | 2017-04-06 |
| TW201600753A (zh) | 2016-01-01 |
| KR102308398B1 (ko) | 2021-10-05 |
| KR20160128323A (ko) | 2016-11-07 |
| TWI646272B (zh) | 2019-01-01 |
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