JP3046645B2 - Bearing ring manufacturing method of the split bearing - Google Patents

Bearing ring manufacturing method of the split bearing

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Publication number
JP3046645B2
JP3046645B2 JP15766491A JP15766491A JP3046645B2 JP 3046645 B2 JP3046645 B2 JP 3046645B2 JP 15766491 A JP15766491 A JP 15766491A JP 15766491 A JP15766491 A JP 15766491A JP 3046645 B2 JP3046645 B2 JP 3046645B2
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Japan
Prior art keywords
flange
split
bearing
bearing ring
ring
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JP15766491A
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Japanese (ja)
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JPH04357325A (en
Inventor
雅之 別府
一由 針本
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エヌティエヌ株式会社
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/58Raceways; Race rings
    • F16C33/60Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44Needle bearings
    • F16C19/46Needle bearings with one row or needles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/58Raceways; Race rings
    • F16C33/64Special methods of manufacture

Abstract

PURPOSE:To divide a bearing ring with flange at a desired dividing surface securely without generating notch or the like. CONSTITUTION:A ring-shape outer wheel 1 having flanges 1 in the side edges thereof is manufactured. Notches 6 by the width of the flange 1 are provided in the side edges of this outer wheel 2, and a dividing groove 7 following the notches 6 on both sides is formed in a mark shape on the inner diameter surface serving as the travelling surface side of the outer wheel 2. Thereafter, a radial directional load is applied to the outer wheel 2 by pressure members 8, 9 so as to divide the outer wheel naturally in the axial direction along the dividing groove 7.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】この発明は、一体型クランクシャフトに使用されるクランクサポートベアリングおよびコンロッド大端ベアリング等、軸方向に分割形式をとる軸受の軌道輪製造方法に関するものである。 BACKGROUND OF THE INVENTION This invention relates to bearing ring manufacturing method of a bearing which takes the division type crank support bearing and the connecting rod big end bearings, etc. are used in integrated crankshaft, in the axial direction.

【0002】 [0002]

【従来の技術】一体型クランクシャフト等の軸受では、 BACKGROUND OF THE INVENTION bearing such integrated crankshaft,
組立の都合上、従来から分割軸受が使用されている。 Assembling convenience, split bearing is conventionally used. このような分割軸受において、従来から使用されているものは、軌道輪に鍔を有しないものである。 In such a divided bearing, those which are conventionally used, are those which do not have a collar to the bearing ring.

【0003】しかし、相手側部品への取付寸法の関係等から、外輪に両鍔または片鍔を持つものが要望されている。 [0003] However, from the relationship or the like of the mounting dimensions for the opposing side parts, those with Ryotsuba or Katatsuba to the outer ring it has been demanded. その一例を図4に示す。 An example thereof is shown in FIG. 同図は両鍔のニードル軸受を示し、両側縁に鍔1を有する外輪2と、ケージタイプの保持器3と、コロ4とで構成される。 The figure shows the two flange needle bearing, an outer ring 2 having a flange 1 on both side edges, a retainer 3 of the cage type, and a roller 4.

【0004】外輪2の分割方法として、カッターを使用する方法は、分割後の両部品を合わせたときに、カッターによる切断代だけ半径が短くなって偏平になるため、 As a method of dividing the outer ring 2, a method of using a cutter, when combined both parts after splitting, since the radius only cutting allowance by the cutter is flat is short,
採用することができない。 Adopted can not be. そのため従来から、鍔1を有しない形式の軸受においては図5(A)に示す分割方法や同図(B)に示す分割方法等が採用されている。 Therefore conventionally, the division method in the bearings which does not have the form of flange 1 is shown in the division method and the drawing shown in FIG. 5 (A) (B) or the like is employed.

【0005】図5(A)の分割方法は、外輪20の転走面となる内径面に割り溝21を刻印により形成し、外輪20に半径方向の荷重を加えることにより、割り溝21 [0005] The method of dividing FIG. 5 (A), formed by stamping a split groove 21 on the inner diameter surface serving as a rolling surface of the outer ring 20, by applying a load in the radial direction to the outer ring 20, split groove 21
に沿って外輪20を自然割りし、軸方向に分割する方法である。 The outer ring 20 spontaneously split along a method of dividing the axial direction. 図5(B)の分割方法は、外輪20の両側に切欠22を形成し、楔状の工具を切欠22に打ち込んで自然割りする方法である。 The method of dividing FIG. 5 (B), a notch 22 is formed on both sides of the outer ring 20, a method of naturally divided by implanting wedge-shaped tool into the notch 22.

【0006】 [0006]

【発明が解決しようとする課題】図4の鍔1を有する外輪2の場合、鍔なしの場合と異なり、良好に分割することが難しい。 For the outer ring 2 having a flange 1 of FIG. 4 [0008], unlike the case of no flange, it is difficult to satisfactorily split. すなわち、鍔付きの外輪に図5(A)の方法を適用する場合、割り溝21を鍔部分に設けることが難しく、また鍔部分に割り溝21を設けたとしても、局部的な厚肉部分である鍔部分で良好に割れないことがある。 That is, when applying the method shown in FIG. 5 (A) to the flanged outer ring, it is difficult to provide the expanding slot 21 in the flange portion, and even if provided the split groove 21 in the flange portion, locally thick part it may not satisfactorily crack in the flange portion is. 図5(B)のように切欠22の形成のみで自然割りする方法は、鍔の有無にかかわらず、破断分割線23の位置が定まらず、希望の形状に割れないことがあり、しかも同図に示すように欠け24が発生することもある。 How to naturally divided only in the formation of the notch 22 as shown in FIG. 5 (B), or without a flange, not fixed the position of the broken division line 23, may not crack on the shape of the desired, yet the figure sometimes chipping 24 is generated as shown in FIG.

【0007】この発明の目的は、鍔付きの軌道輪を、欠け等を生じることなく所望分割線で確実に分割することのできる分割軸受の軌道輪製造方法を提供することである。 An object of the present invention is to provide a flanged bearing ring, the bearing ring manufacturing method of the split bearing which can be reliably divided by a desired dividing line without causing chipping.

【0008】 [0008]

【課題を解決するための手段】この発明の軌道輪製造方法は、側縁に鍔を有しかつ鍔の付け根に研磨ぬすみを有するリング状の軌道輪を製造した後、軌道輪の側縁に鍔の幅だけ切欠を設け、かつ軌道輪の転走面側の周面に、 Means for Solving the Problems] raceway production method of the present invention, after manufacturing a ring-shaped bearing ring having a relief grinding at the base of a and flange the flange on the side edges, the side edges of the bearing ring by the width of the flange is provided a notch, and the circumferential surface of the rolling surface side of the bearing ring,
前記切欠から続く割り溝を転走面の全幅にわたり形成する。 It formed over the entire width of the rolling surface of the split groove continuing from said notch. 切欠の形成と割り溝の形成とは、いずれを先に行っても良い。 The formation of the formation and split groove notch may be performed either the first. 切欠はスリット状とし、前記鍔の軸方向幅寸法にまたがって、研磨ぬすみに達するまで設ける。 Notch is a slit-like, across the axial width of the flange, provided to reach the polishing stealing. 割り溝も、研磨ぬすみに達するまで形成する。 Split groove also formed to reach the polishing stealing. 前記割り溝 The split groove
は、溝全長にわたる長さのプレス型を使用して刻印状に It is a stamped shape using a press-type having a length covering the entire groove full length
塑性変形させることにより形成する。 Formed by plastically deforming. この後、軌道輪に半径方向の荷重を加えることにより、割り溝に沿って軸方向に分割する。 Thereafter, by applying a radial load of the bearing ring is divided axially along the split groove.

【0009】 [0009]

【作用】この方法によると、軌道輪は、半径方向の荷重が加えられることにより、切欠から続く割り溝に沿って自然割れし、軸方向に分割される。 According to the action] The method, races, by the radial load is applied, and natural cracks along the split groove continuing from the notch, is divided in the axial direction. 自然割れさせるのは鍔のない部分だけであり、また予め割り溝を設けておくため、欠け等を生じることなく割り溝に沿って確実にかつ容易に分割される。 And alone with no flange portion of giving natural cracking, also to keep providing the previously split groove is reliably and easily divided along the split groove without causing chipping. また、割り溝は転走面側に設けるので、自然割れによるバリ状の突起部分が軌道面に突出することがなく、使用時に突起部分が欠けて円滑な回転に支障をきたすことがない。 Further, since the split groove is provided on the rolling surface side, burr-like projections portion without projecting the raceway surface, is not hinder the smooth rotation lacks protruding portion at the time of use due to natural cracks.

【0010】 [0010]

【実施例】この発明の一実施例を図1に基づいて説明する。 EXAMPLES be described with reference to an embodiment of the present invention in FIG. この実施例は、図4のニードル軸受の軌道輪である外輪2の製造に適用した例である。 This embodiment is an example applied to the production of the outer ring 2 is the bearing ring of the needle bearing of FIG.

【0011】まず、図1(A)に示すように、両側に内向きの鍔1を有する非分割の外輪2を旋削等により形成する。 [0011] First, as shown in FIG. 1 (A), the non-split outer ring 2 having a flange 1 inward on both sides formed by turning or the like. 図中、5は鍔1の付け根に設けた研磨ぬすみを示す。 In the figure, 5 denotes a steal polishing is provided at the base of the flange 1. この外輪2の両側縁に、同図(B),(C)のように切欠6を鍔1の幅だけ設ける。 Both side edges of the outer ring 2, FIG. (B), provided by the width of the flange 1 to the notch 6 as (C). 切欠6は、薄肉の砥石車やワイヤカット加工等によりスリット状に形成し、研磨ぬすみ5に達するまで設ける。 Notch 6 is formed in a slit shape by a thin grinding wheel and wire cutting or the like, provided to reach the polishing stealing 5. また、外輪1の周方向の2箇所において、同じ直径上に設ける。 Further, in two places in the circumferential direction outer ring 1, it is provided on the same diameter.

【0012】この後、同図(D),(E)に示すように、外輪2の転走面となる内径面に、割り溝7を両側の切欠6,6間にわたり、研磨ぬすみ5に達するまで設ける。 [0012] After this, the Graph 1 (D), causing the (E), the inside diameter surface of the raceway surface of the outer ring 2, a split groove 7 over between the side of the notch 6, 6, reach the polishing stealing 5 providing up to. 割り溝7は、溝全長にわたる長さのプレス型を使用し、刻印を打つように塑性変形させることにより形成す Split groove 7, using a press-type length over the groove the entire length, to form by plastic deformation so as the imprint
る。 That. り溝7は、同図に示すように円弧曲線状に設けることが好ましく、溝断面形状はV字状、円弧状、あるいは矩形状等に形成する。 Split Rimizo 7 is preferably provided in an arc curved shape as shown in the figure, the groove sectional shape is V-shaped is formed in an arc shape, or a rectangular shape or the like.

【0013】このように切欠6および割り溝7を形成した後、外輪2を熱処理し、さらに研磨を施して幅,外径,転走面の仕上げを行う。 [0013] After forming the thus cut-out 6 and split groove 7, heat treatment of the outer ring 2, performs width, outer diameter, rolling finishing rolling surface subjected further polishing.

【0014】つぎに、図1(F)に示すように、外輪2 [0014] Next, as shown in FIG. 1 (F), the outer ring 2
を一対の加圧部材8,9の間で半径方向に加圧する。 The pressurized radially between the pair of pressure members 8,9. 割り溝7は、両加圧部材8,9側に位置させ、また外輪2 Split groove 7, it is positioned on both the pressure member 8, 9 side, the outer ring 2
内には上下に隙間が形成される断面形状の補助治具10 Auxiliary jig 10 of the cross-sectional shape that a gap up and down is formed in the inner
を嵌合させる。 A is fitted. 補助治具10は、外輪2を内外から挟むものであっても良い。 Auxiliary jig 10 may be one sandwiching the outer ring 2 from inside and outside. このように加圧することにより、 By applying such pressurized,
外輪2は割り溝7に沿って自然割れを生じ、軸方向に分割される。 The outer ring 2 produces a natural crack along the split groove 7 is divided in the axial direction.

【0015】この軌道輪製造方法によると、このように外輪2の鍔1の部分に切欠6を設けると共に、両側の切欠6に続く割り溝7を形成しておいて加圧するので、鍔1を有するにもかかわらず、割り溝7に沿って確実に分割することができ、また分割時に欠けが発生することが防止される。 [0015] According to the bearing ring manufacturing method, thus provided with a notch 6 in the portion of the collar 1 of the outer ring 2, so pressurized in advance by forming a split groove 7 which follows on both sides of the notch 6, the flange 1 despite having, can be reliably divided along the split groove 7, also lacking in time division is prevented from occurring.

【0016】外輪2の割り面は、分割後に組み合わされた一対の分割外輪が、使用時に軸方向にずれることを防止するため、この実施例の割り溝7で示すように円弧状とすることが望ましい。 The split surfaces of the outer ring 2, a pair of split outer ring combined after division, in order to prevent from being displaced in the axial direction during use, be arcuate as indicated by the split groove 7 in this embodiment desirable. この分割方法によると、このように理想の形状に設定した割り溝7に沿って、確実に分割することができる。 According to the dividing method, thus along the split groove 7 is set to an ideal shape, it is possible to reliably divide.

【0017】割り溝7は、外輪2の転走面側に設けるが、そのため分割時に生じるバリ状の突起部が転走面に突出することがなく、したがって使用時に突起部が欠けて円滑な回転に支障をきたすことがない。 The split groove 7 is provided on the rolling surface side of the outer ring 2, therefore without burr-like projections occurring during division protruding rolling surfaces, thus smooth rotation is missing projections in use never interfere with.

【0018】また、割り溝7の形成は、両側の鍔1,1 [0018] In addition, the formation of the split groove 7, both sides of the flange 1, 1
の間だけに行えば良く、鍔1に形成する必要がないので、前記のように刻印状の加工方法を採用して簡易に形成できる。 By performing only during the well, it is not necessary to form the flange 1 can be easily formed by employing a stamping-like processing method as described above. 切欠6の形成も、前記の機械加工により容易に行える。 Formation of notches 6 also facilitated by machining of the.

【0019】なお、前記実施例は割り溝7を曲線状に形成したが、図2(A)のように直線状に形成しても良く、また同図(B)のように切欠6の位置をずらせて割り溝7を軸方向に対して斜めに形成しても良い。 [0019] Incidentally, the above embodiment has been forming the dividing grooves 7 in a curved shape, the position of the notch 6 as may be formed in a linear shape, also FIG. (B) As shown in FIG. 2 (A) the may be formed obliquely split groove 7 in the axial direction by shifting. このように斜めに形成して外輪2を分割した場合も、分割外輪が軸方向にずれることが生じ難くなる。 Case of dividing the outer ring 2 thus formed diagonally split outer ring is unlikely to occur may be shifted in the axial direction.

【0020】図3は、鍔11を有する内輪12の製造に適用した実施例を示す。 [0020] Figure 3 shows an embodiment applied to the manufacture of the inner ring 12 having a flange 11. この場合、図1の実施例と同様に切欠6を形成し、これら切欠6,6間に続く割り溝1 In this case, split groove 1 formed in the same manner as notch 6 and the embodiment of FIG. 1, followed between these notches 6,6
3を、内輪12の転走面側である外径面に形成する。 3, is formed on the outside surface is a rolling surface side of the inner ring 12. 加圧作業は、例えば同図(B)のように、内側治具14と外側の加圧部材15とを用い、内輪12に対する半径方向の荷重を加える。 Pressing action industry, for example as shown in FIG. (B), using the inner jig 14 and the outer pressure member 15 applies a load in the radial direction relative to the inner ring 12. このように内輪12を分割する場合にも、割り溝13に沿う確実な分割が行える。 Also in the case of division in this manner the inner ring 12, can be performed reliably split along the split grooves 13.

【0021】なお、前記各実施例は両側に鍔1または1 [0021] Incidentally, the respective embodiments flange 1 or 1 on both sides
1を有する軌道輪の場合につき説明したが、片側のみに鍔を有する軌道輪の場合にも、この発明を適用することができる。 It has been explained the case of the bearing ring with 1, in the case of the bearing ring having a flange on only one side, it is possible to apply the present invention. 片側のみに鍔を設ける場合は、軌道輪の鍔を有しない側縁には切欠を設けずに、割り溝を端面まで形成しても良く、また鍔のない側縁にも切欠を設けても良い。 If only one side to provide a flange, without providing the no side edges of the flange of the bearing ring notches may be formed dividing grooves to the end face, also be even notch provided without flange side edge good. またこの発明は、ニードル軸受に限らず、分割軸受一般に適用することができる。 The present invention is not limited to the needle bearing can be applied to split the bearing generally.

【0022】 [0022]

【発明の効果】この発明の分割軸受の軌道輪製造方法は、軌道輪に略鍔の幅だけ切欠を形成し、この切欠から続く割り溝を形成して加圧分割するので、鍔を有するにもかかわらず、欠け等を生じることなく、割り溝に沿って確実に分割することができるという効果がある。 Effects of the Invention raceway method of producing segmented bearing of the invention forms only notch width Ryakutsuba the bearing ring, so forming a split groove under pressure division continued from the notch, in having a flange Nevertheless, without causing chipping, there is an effect that can be reliably divided along the split groove.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】この発明の一実施例の軌道輪製造方法を示す工程説明図である。 1 is a process explanatory view showing a bearing ring manufacturing method of an embodiment of the present invention. 同図(C)は、同図(B)のC−C線断面を、同図(E)は同図(D)のE−E線断面を各々示す。 FIG (C) is a sectional view taken along line C-C in FIG. (B), FIG. (E) respectively indicate the line E-E cross section of FIG. (D).

【図2】(A),(B)は各々この発明の他の実施例における外輪の分割前の状態を示す断面図である。 Figure 2 (A), (B) is a cross-sectional view each showing a state before the division of the outer ring according to another embodiment of the present invention.

【図3】(A)はこの発明のさらに他の実施例における分割前の内輪の破断側面図、(B)は加圧工程の断面図である。 3 (A) is further broken side view of the inner ring before division in another embodiment of the present invention, it is a cross-sectional view of as (B) the pressing step.

【図4】この発明方法を適用する軸受の一例を示す部分断面図である。 4 is a partial sectional view showing an example of a bearing to apply the invention method.

【図5】(A),(B)は各々従来の軸受分割方法を示す説明図である。 [5] (A), (B) is an explanatory diagram showing the respective conventional bearing division method.

【符号の説明】 DESCRIPTION OF SYMBOLS

1…鍔、2…外輪(軌道輪)、5…研磨ぬすみ、6…切欠、7…割り溝、8,9…加圧部材、11…鍔、12… 1 ... flange, 2 ... outer (bearing ring), 5 ... grinding relief, 6 ... notch, 7 ... split groove, 8,9 ... pressure member, 11 ... flange, 12 ...
内輪(軌道輪)、13…割り溝 The inner ring (bearing ring), 13 ... split groove

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl. 7 ,DB名) F16C 33/64 F16C 33/60 ────────────────────────────────────────────────── ─── of the front page continued (58) investigated the field (Int.Cl. 7, DB name) F16C 33/64 F16C 33/60

Claims (1)

    (57)【特許請求の範囲】 (57) [the claims]
  1. 【請求項1】 側縁に鍔を有しかつ鍔の付け根に研磨ぬすみを有するリング状の軌道輪を製造する過程と、この軌道輪の側縁に前記鍔の軸方向幅寸法にまたがって前記研磨ぬすみに達するスリット状の切欠を設ける過程と、 1. A comprising the steps of producing a ring-shaped bearing ring having a relief grinding at the base of a and flange a flange on the side edge, the across the axial width of the flange to the side edge of the bearing ring notch comprising the steps of providing a slit reaching the polishing stealing,
    前記軌道輪の転走面側の周面に、前記切欠から略続く割り溝を前記研磨ぬすみに達するまで転走面の全幅にわたり形成する過程と、前記軌道輪に半径方向の荷重を加えて前記割り溝に沿い分割する過程とを含み、前記割り溝 Wherein the peripheral surface of the rolling surface side of the bearing ring, in addition a step of forming over the rolling surface of the full width up to the substantially subsequent split groove from the notch reaches the polishing steal, the radial load of the bearing ring and the process to split along the split groove seen including, the split groove
    は溝全長にわたる長さのプレス型を使用して刻印状に塑 塑the stamped shape by using a press-type having a length covering the entire groove overall length
    性変形させることにより形成する分割軸受の軌道輪製造方法。 Bearing ring manufacturing method of the split bearing formed by sexual deformed.
JP15766491A 1991-05-30 1991-05-30 Bearing ring manufacturing method of the split bearing Expired - Fee Related JP3046645B2 (en)

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