JP2013092208A - Tapered snap ring - Google Patents

Tapered snap ring Download PDF

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Publication number
JP2013092208A
JP2013092208A JP2011234988A JP2011234988A JP2013092208A JP 2013092208 A JP2013092208 A JP 2013092208A JP 2011234988 A JP2011234988 A JP 2011234988A JP 2011234988 A JP2011234988 A JP 2011234988A JP 2013092208 A JP2013092208 A JP 2013092208A
Authority
JP
Japan
Prior art keywords
snap ring
ring
taper
tapered snap
hole
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.)
Pending
Application number
JP2011234988A
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Japanese (ja)
Inventor
Kengo Murakami
賢吾 村上
Manabu Chiga
学 千賀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK Ltd
Original Assignee
NSK Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NSK Ltd filed Critical NSK Ltd
Priority to JP2011234988A priority Critical patent/JP2013092208A/en
Publication of JP2013092208A publication Critical patent/JP2013092208A/en
Pending legal-status Critical Current

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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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
    • F16B21/183—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details internal, i.e. with spreading action

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a tapered snap ring which hardly causes the come-off of the tapered snap ring without increasing the number of part items, and is suppressed in an increase in cost and assembling man-hours, in the tapered snap ring for fixing a component to a shaft or to a hole of a housing.SOLUTION: This tapered snap ring for fixing the component to the shaft or to the hole of the housing is characterized in that thicknesses of a hook of the tapered snap ring and a part of a ring part are made thinner than that of the other portion of the ring part. There are no limit on a method for thinning the thicknesses of the hook of the tapered snap ring and a part of the ring part, nor on shapes of them, however, the thinning can be achieved by pressing, cutting and polishing.

Description

この発明は、テーパスナップリングに関し、転がり軸受等を軸またはハウジングの穴に固定するため等に用いる。   The present invention relates to a taper snap ring and is used for fixing a rolling bearing or the like to a shaft or a hole of a housing.

スナップリングは、ハウジングに挿入された軸類、例えばシャフトやピンあるいは筒状体の上記ハウジングに対する位置決めや抜け止め用として多く用いられている。しかしながら、上記穴用スナップリングに穴の軸線方向の荷重が繰り返し加わった場合、上記軸類支持穴形成部材の穴の内周面に形成されたスナップリング嵌挿溝の形状が変形し、穴用スナップリングの外径を小さくする方向に力が作用し、上記穴用スナップリングが緩み出し、抜けることがあった。   The snap ring is often used for positioning and retaining of shafts inserted into the housing, for example, shafts, pins, or cylindrical bodies with respect to the housing. However, when a load in the axial direction of the hole is repeatedly applied to the hole snap ring, the shape of the snap ring insertion groove formed on the inner peripheral surface of the hole of the shaft support hole forming member is deformed, and A force is applied in the direction of reducing the outer diameter of the snap ring, and the snap ring for the hole is loosened and sometimes comes off.

この部分の改善の先行技術としては、針状転がり軸受４の位置決めや抜け止め用として、軸受穴用スナップリング９のフック部９１、９２の巾と略等しい巾と上記穴用スナップリング９の厚さと略等しい厚さとを有し、かつ溝６ａへの嵌入側にスリットにより分岐された脚部１２、１３を有し、該脚部１２、１３が溝に嵌装状態の上記穴用スナップリング９の上記フック部９１、９２に挿入時、外力により上記溝内にて拡開し、上記穴用スナップリング９のフック部９１、９２に圧着し得るようにしたことを特徴とする穴用スナップリング９のロック部材１０がある。（特許文献１）   As a prior art for improvement of this portion, the width of the hook snap ring 9 is substantially equal to the width of the hook portions 91 and 92 of the bearing hole snap ring 9 and the thickness of the hole snap ring 9 is used for positioning and retaining of the needle rolling bearing 4. And the leg snap ring 9 in a state where the leg portions 12 and 13 are fitted in the groove. The hole snap ring is characterized in that, when inserted into the hook portions 91, 92, it is expanded in the groove by an external force and can be crimped to the hook portions 91, 92 of the hole snap ring 9. There are nine locking members 10. (Patent Document 1)

実開平６−１４５２３号公報Japanese Utility Model Publication No. 6-14523

しかしながら、上記技術は、穴用スナップリング９の他に、ロック部材１０が必要な為、コストや組立工数が増加する恐れがある。   However, since the above technique requires the lock member 10 in addition to the hole snap ring 9, there is a risk that the cost and the number of assembly steps may increase.

本発明は、上記課題に鑑みてなされたものであり、部品点数を増やさずにテーパスナップリングが抜け難くし、コストや組立工数が増加することを抑制したテーパスナップリングを提供することを目的とする。   The present invention has been made in view of the above problems, and it is an object of the present invention to provide a taper snap ring that makes it difficult for the taper snap ring to come out without increasing the number of parts, and suppresses an increase in cost and assembly man-hours. To do.

上記目的を達成するため、本発明は、部品を軸またはハウジングの穴に固定する為のテーパスナップリングにおいて、前記テーパスナップリングのフック部及びリング部の一部の厚みを、リング部の他の部分よりも薄くしたことを特徴とする。   In order to achieve the above object, the present invention provides a taper snap ring for fixing a part to a shaft or a hole of a housing, wherein the thickness of a part of the hook portion and the ring portion of the taper snap ring is changed to another thickness of the ring portion. It is characterized by being thinner than the part.

本発明では、部品点数を増やさずにテーパスナップリングが抜け難くし、コストや組立工数が増加することを抑制できる。   In the present invention, it is possible to prevent the taper snap ring from coming off without increasing the number of parts, and to suppress an increase in cost and assembly man-hours.

本発明に係るテーパスナップリングの正面図と側面図Front view and side view of tapered snap ring according to the present invention テーパスナップリングを取り付けた状態の部分断面図Partial sectional view with taper snap ring attached （ａ）従来のテーパスナップリングの正面図（ｂ）本発明に係るテーパスナップリングの正面図(A) Front view of a conventional taper snap ring (b) Front view of a taper snap ring according to the present invention 従来のテーパスナップリングとロック部材の部分正面図Partial front view of conventional taper snap ring and lock member

以下、本発明に係るテーパスナップリング１について図面を参照して説明する。図１は、本発明のテーパスナップリング１であり、図１、２に示すように、外周面と側面の一部がテーパ１ｄとなっている。図２に示すように、前記テーパスナップリング１は、外径を小さくしてハウジングに取り付けられた場合、バネ力が働き、軸受５が軸方向に抜けないように、テーパスナップリング１のテーパ１ｄとハウジング２のテーパ２ｄでハウジング２に固定されている。図１、２に示すように、本実施形態の部品をハウジング２の穴に固定する為のテーパスナップリング１において、前記テーパスナップリング１のフック部１ａ及びリング部の一部１ｂの厚みを、リング部の他の部分１ｃよりも薄くした。前記テーパスナップリング１のフック部１ａ及びリング部の一部１ｂの厚みを薄くする方法や、形状は、特に限定しないが、プレス加工や切削加工や研磨加工にて薄くできる。また、前記加工の中で、コストや加工時間の面では、プレス加工が好ましい。また、図１では、ハウジング２に接触するテーパ側１ｅと軸受外輪５ａに接触する平面側１ｆの両方をプレス加工にて薄くしているが、少なくとも一方をプレス加工にて薄くしても良い。これにより、部品点数を増やさずにテーパスナップリング１が抜け難くなり、コストや組立工数が増加することを抑制する効果がある。テーパスナップリング１形状の違いについて、アキシアル荷重負荷時の抜けやすさの比較を行った。図２に、軸受外輪５ａをテーパスナップリングにより固定した際の断面図を示す。軸受外輪５ａからアキシアル荷重Aが負荷されると、テーパスナップリング１はハウジング２との接触により反力Bが生じる。このとき、スナップリングにテーパ１ｄが施されているため、径方向内側にも反力Cが生じる。この反力Cによってフック部１ａに近い部分ほど大きなモーメント荷重を受け、テーパスナップリング１が径方向に縮まる。この影響により、大荷重が負荷された場合には、図３（ａ）に示すように従来のテーパスナップリング３は抜けることがある。しかし、図３（ｂ）に示す本発明のフック部周辺の厚さが薄いテーパスナップリング１は、フック部１ａとリング部の一部１ｂにおいて軸受５やハウジング２と接触しないため、厚いリング部の他の部分１ｃのみで荷重を受け、フック部１ａとリング部の一部１ｂでは荷重を受けない。荷重を受ける点が、フック部１ａに近いほどモーメントにおける腕の長さが長くなるため、リングは変形しやすい。よって、本発明のテーパスナップリング１は、リングが縮まろうとするモーメント荷重を小さく抑えることが可能なため、抜けを防止する効果がある。   Hereinafter, the taper snap ring 1 according to the present invention will be described with reference to the drawings. FIG. 1 shows a taper snap ring 1 of the present invention. As shown in FIGS. 1 and 2, a part of the outer peripheral surface and the side surface is a taper 1d. As shown in FIG. 2, when the taper snap ring 1 is attached to the housing with a reduced outer diameter, the taper 1d of the taper snap ring 1 prevents the bearing 5 from coming off in the axial direction by applying a spring force. The housing 2 is fixed to the housing 2 by a taper 2d. As shown in FIGS. 1 and 2, in the taper snap ring 1 for fixing the component of the present embodiment to the hole of the housing 2, the thickness of the hook portion 1a of the taper snap ring 1 and the part 1b of the ring portion is set as follows. It was thinner than the other part 1c of the ring part. Although the method and the shape of reducing the thickness of the hook part 1a and the part 1b of the ring part of the taper snap ring 1 are not particularly limited, they can be thinned by pressing, cutting or polishing. Of the processes, press working is preferable in terms of cost and processing time. In FIG. 1, both the taper side 1e that contacts the housing 2 and the flat side 1f that contacts the bearing outer ring 5a are thinned by pressing, but at least one of them may be thinned by pressing. Thereby, the taper snap ring 1 becomes difficult to come off without increasing the number of parts, and there is an effect of suppressing an increase in cost and assembly man-hours. The difference in the shape of the taper snap ring 1 was compared with the ease of removal when an axial load was applied. FIG. 2 shows a cross-sectional view when the bearing outer ring 5a is fixed by a taper snap ring. When an axial load A is applied from the bearing outer ring 5 a, the taper snap ring 1 generates a reaction force B due to contact with the housing 2. At this time, since the snap ring is tapered 1d, a reaction force C is also generated on the radially inner side. Due to the reaction force C, the portion closer to the hook portion 1a receives a larger moment load, and the taper snap ring 1 is contracted in the radial direction. Due to this influence, when a heavy load is applied, the conventional taper snap ring 3 may come off as shown in FIG. However, since the taper snap ring 1 having a small thickness around the hook portion of the present invention shown in FIG. 3B does not contact the bearing 5 or the housing 2 at the hook portion 1a and a part 1b of the ring portion, the thick ring portion Only the other portion 1c receives the load, and the hook portion 1a and the ring portion 1b do not receive the load. As the point receiving the load is closer to the hook portion 1a, the length of the arm in the moment becomes longer, so that the ring is easily deformed. Therefore, since the taper snap ring 1 of the present invention can suppress the moment load to which the ring is contracted, it has an effect of preventing the disconnection.

また、上述の実施形態は本発明の一例を示したものであって、本発明はこれらの実施形態に限定されるものではない。本発明の主旨を外れない限り、他の実施形態にも適用出来る。   Moreover, the above-mentioned embodiment shows an example of this invention, Comprising: This invention is not limited to these embodiment. As long as the gist of the present invention is not deviated, the present invention can be applied to other embodiments.

１、３ テーパスナップリング
１ａ、９１、９２ フック部
１ｂ リング部の一部
１ｃ リング部の他の部分
１ｄ テーパ
１ｅ テーパ側
１ｆ 平面側
２ ハウジング
２ｄ テーパ
４ 針状転がり軸受
５ 軸受
５ａ 軸受外輪
６ａ 溝
９ 穴用スナップリング
１０ ロック部材
１２、１３ 脚部
Ａ アキシアル荷重
Ｂ 反力
Ｃ 径方向内側反力 1, 3 Taper snap ring 1a, 91, 92 Hook part 1b Part of ring part 1c Other part of ring part 1d Taper 1e Taper side 1f Plane side 2 Housing 2d Taper 4 Needle-shaped rolling bearing 5 Bearing 5a Bearing outer ring 6a Groove 9 Hole snap ring 10 Lock member 12, 13 Leg A Axial load B Reaction force C Radial inner reaction force

Claims (1)

部品を軸またはハウジングの穴に固定する為のテーパスナップリングにおいて、前記テーパスナップリングのフック部及びリング部の一部の厚みを、リング部の他の部分よりも薄くしたことを特徴とするテーパスナップリング。 A taper snap ring for fixing a part to a hole of a shaft or a housing, wherein the taper snap ring has a hook part and a part of the ring part thinner than other parts of the ring part. Snap ring.
JP2011234988A 2011-10-26 2011-10-26 Tapered snap ring Pending JP2013092208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011234988A JP2013092208A (en) 2011-10-26 2011-10-26 Tapered snap ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011234988A JP2013092208A (en) 2011-10-26 2011-10-26 Tapered snap ring

Publications (1)

Publication Number Publication Date
JP2013092208A true JP2013092208A (en) 2013-05-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011234988A Pending JP2013092208A (en) 2011-10-26 2011-10-26 Tapered snap ring

Country Status (1)

Country Link
JP (1) JP2013092208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220212513A1 (en) * 2019-04-09 2022-07-07 Vibracoustic Se Circlip, arrangement and method for installing the circlip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220212513A1 (en) * 2019-04-09 2022-07-07 Vibracoustic Se Circlip, arrangement and method for installing the circlip

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