JP4517717B2 - Method for manufacturing lubricating structure of rotating body device - Google Patents

Method for manufacturing lubricating structure of rotating body device Download PDF

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JP4517717B2
JP4517717B2 JP2004139504A JP2004139504A JP4517717B2 JP 4517717 B2 JP4517717 B2 JP 4517717B2 JP 2004139504 A JP2004139504 A JP 2004139504A JP 2004139504 A JP2004139504 A JP 2004139504A JP 4517717 B2 JP4517717 B2 JP 4517717B2
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hole
hollow hole
support shaft
plug
die
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JP2005321026A (en
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知裕 安澤
淳 西内
千明 西沢
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JTEKT Corp
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JTEKT Corp
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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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0479—Gears or bearings on planet carriers

Description

本発明は、支持軸の外周面に軸受を介して回転体を支持した回転体装置等において軸受に潤滑油を供給して該軸受を潤滑する回転体装置の潤滑構造を製造する方法に関する。 The present invention, in the rotating body apparatus or the like which supports the rotating member through bearings to the outer peripheral surface of the support shaft to supply the lubricating oil to the bearing relates to a method for producing a lubricating structure of a rotary body device for lubricating the bearing.

上記潤滑構造を備えた回転体装置の一例として図６に示す遊星歯車式の動力伝達装置（特許文献１参照）を説明すると、インターナルギヤ（外輪）１００とサンギア（太陽歯車）１０１との間に複数のピニオンギヤ（遊星歯車）１０２が介装されている。これら介装された各ピニオンギヤ１０２それぞれの中心穴にピニオンシャフト（支持軸）１０３が、ころ軸受１０４を介してそれぞれ挿入されている。このような遊星歯車式の動力伝達装置としては、例えば、特許文献１が参照される。上記動力伝達装置において、ころ軸受１０４を潤滑する潤滑構造は、各ピニオンシャフト１０３に、第１の穴（潤滑油導入用中空穴）１０５を設け、第１の穴１０５の穴壁に第３の穴（潤滑油供給用入口穴）１０６と第２の穴１０７（潤滑油供給用出口穴）とを設けるとともに、該第１の穴１０５をプラグ１０８で閉塞した構造となっている。そして、この潤滑構造の場合、潤滑油を支軸であるピニオンシャフト１０３の第３の穴１０６から第１の穴１０５に導入し、この第１の穴１０５から第２の穴１０７から流出させて、ころ軸受１０４へと導いて、該ころ軸受１０４を潤滑する。   A planetary gear type power transmission device (see Patent Document 1) shown in FIG. 6 will be described as an example of a rotating body device having the above lubricating structure. Between the internal gear (outer ring) 100 and the sun gear (sun gear) 101 A plurality of pinion gears (planetary gears) 102 are interposed. Pinion shafts (support shafts) 103 are inserted through roller bearings 104 in the center holes of the respective pinion gears 102 interposed. As such a planetary gear type power transmission device, for example, Patent Document 1 is referred to. In the power transmission device, the lubricating structure for lubricating the roller bearings 104 is provided with a first hole (lubricant introduction hollow hole) 105 in each pinion shaft 103, and a third wall is formed in the hole wall of the first hole 105. A hole (lubricating oil supply inlet hole) 106 and a second hole 107 (lubricating oil supply outlet hole) are provided, and the first hole 105 is closed by a plug 108. In the case of this lubricating structure, the lubricating oil is introduced into the first hole 105 from the third hole 106 of the pinion shaft 103 that is the support shaft, and is allowed to flow out from the second hole 107 through the first hole 105. Then, it is guided to the roller bearing 104 to lubricate the roller bearing 104.

以上の構成を備えた潤滑構造の場合、ピニオンシャフト１０３の第１の穴１０５を閉塞するためのプラグ１０８を、平板状のプラグ素材から有底円筒形に加工形成したものとなっているために、潤滑構造の製造工程としては、平板状のプラグ素材を有底円筒形に形成するというプラグ加工工程と、支持軸の中空穴にプラグを圧入するプラグ圧入工程という少なくとも２つ別々の工程が要求される。
実新−０２６０４５６４号公報 In the case of the lubricating structure having the above configuration, the plug 108 for closing the first hole 105 of the pinion shaft 103 is processed and formed from a flat plug material into a bottomed cylindrical shape. The lubrication structure manufacturing process requires at least two separate processes: a plug processing process for forming a flat plug material into a bottomed cylindrical shape, and a plug press-fitting process for press-fitting the plug into the hollow hole of the support shaft. Is done.
Sanshin-02604564

本発明は、上記プラグ圧入工程においてプラグ加工を実施可能として、潤滑構造の製造工数を削減して、該潤滑構造を用いた遊星式動力伝達装置等、回転体装置の製造コストの低減化を図ったものである。   The present invention makes it possible to perform plug processing in the plug press-fitting step, thereby reducing the number of manufacturing steps of the lubrication structure and reducing the manufacturing cost of a rotating body device such as a planetary power transmission device using the lubrication structure. It is a thing.

（１）本発明の回転体装置の潤滑構造の製造方法は、回転体装置の軸受に潤滑油を供給するための一端側が開口した潤滑油導入用中空穴と潤滑油供給用出口穴とを備えた軸体と、上記開口側から上記中空穴内に圧入されて該開口を閉塞するプラグとを備えた回転体装置の潤滑構造の製造方法であって、上記軸体の一端側にダイスの一端側を装着し、この装着の状態でダイスの他端側に平板状のプラグ素材を配置し、この配置したプラグ素材を圧入治具により当該ダイスの中空穴に圧入して有底筒状のプラグ素材に成形し、この成形したプラグ素材をそのまま上記ダイスの中空孔から上記軸体の中空穴へと圧入して上記プラグとなすことを特徴とするものである。 (1) A method of manufacturing a lubricating structure for a rotating body device according to the present invention includes a lubricating oil introduction hollow hole and a lubricating oil supply outlet hole that are open at one end side for supplying lubricating oil to a bearing of the rotating body device. A method of manufacturing a lubrication structure of a rotating body device including a shaft body and a plug that is press-fitted into the hollow hole from the opening side to close the opening, the one end side of the die being on one end side of the shaft body In this mounted state, a flat plug material is placed on the other end of the die, and the plug material thus placed is press-fitted into the hollow hole of the die by a press-fitting jig to form a bottomed cylindrical plug material. The plug material thus formed is directly pressed into the hollow hole of the shaft body from the hollow hole of the die to form the plug .

本発明の回転体装置の潤滑構造の製造方法によると、平板状のプラグ素材を上記軸体の一端側に装着したダイスの中空穴に圧入するときに該中空穴により有底筒状に絞り加工しながら、同時にプラグを中空穴に圧入できるから、平板状のプラグ素材をプラグの圧入工程とは別途の絞り加工でわざわざ有底筒状（プラグ状）に形成する必要がなくなり、工程削減が可能となり、結果として、この潤滑構造を備えた回転体の製造コストを低減することができる。 According to the manufacturing method of the lubrication structure of the rotating body apparatus of the present invention, the diaphragm into a bottomed cylindrical shape by the hollow hole when press-fitting the flat plate-like plug material into a hollow hole of a die mounted to one end of said shaft body Since the plug can be press-fitted into the hollow hole at the same time as processing, it is no longer necessary to form a flat plug material into a bottomed tube shape (plug shape) separately from the plug press-fitting process, reducing the number of processes. As a result, the manufacturing cost of the rotating body provided with this lubricating structure can be reduced.

しかも、本発明では、軸体の中空穴の穴縁の面取や支持軸の中空穴の内周面が非研磨面であるときの影響を受けず、また、ダイスの中空穴の穴縁に面取を設けないものとし、かつ、該ダイスの中空穴の内周面を研磨面とすることにより、プラグ素材からプラグを高精度に形成することができる。 Moreover, the present invention is not affected by the chamfering of the hole edge of the hollow hole of the shaft body or the inner peripheral surface of the hollow hole of the support shaft being a non-polished surface, and is not affected by the hole edge of the hollow hole of the die. By not providing chamfering and making the inner peripheral surface of the hollow hole of the die a polished surface, the plug can be formed from the plug material with high accuracy.

本発明によれば、プラグの加工工程を支軸等の軸体への圧入工程と同時に実施することが可能となるので、工程を少なくとも１つ削減でき、潤滑構造の製造コストの低減を図れる。   According to the present invention, the plug processing step can be performed simultaneously with the press-fitting step into the shaft body such as the support shaft, so that at least one step can be reduced and the manufacturing cost of the lubricating structure can be reduced.

以下、本発明の詳細を、添付図面を参照して、説明する。図１は、本発明の製造方法により製造される回転体装置の一例である遊星歯車式の動力伝達装置の全体構成を示す図であり、図１を参照して、１はリング歯車、２は太陽歯車、３は遊星歯車（回転体）、４は支持軸（軸体）、５は針状ころ、６は保持器、７はキャリア、８はワッシャを示す。なお、この形態に係る潤滑構造が適用される装置として内外に配置した歯車の噛合により回転動力を伝達する遊星歯車式の動力伝達装置が適用されているが、内外に配置した歯車ではなく、内外に配置した摩擦部材の組み合わせにより回転動力を伝達する遊星摩擦式の動力伝達装置にも適用することもできる。リング歯車１は、太陽歯車２およびキャリア７の周囲に、これら太陽歯車２とキャリア７とに対して相対回転自在に支持されており、その内周面にヘリカルギアが形成されている。太陽歯車２は、内周面にスプラインが、また、外周面にヘリカルギヤが形成されている。太陽歯車２の内周面に回転軸１０がスプライン嵌合されている。遊星歯車３は、内周面に中心穴３ａを備え、外周面にヘリカルギヤが形成されている。遊星歯車３は、図面では１つだけ示されているが、太陽歯車２の外周の円周上に沿い該円周方向等間隔に複数個配置されており、各遊星歯車３それぞれは、リング歯車１と太陽歯車２とに噛合している。支持軸４は、遊星歯車３の中心穴３ａに、針状ころ５と保持器６とを介して挿入されている。針状ころ５と保持器６とでケージアンドローラと呼ばれる転がり軸受を構成する。針状ころ５は遊星歯車３の内周面を外輪軌道とし、支持軸４の外周面を内輪軌道とする。キャリア７は、２枚の対向する環状板１２，１３の外径側の円周方向複数箇所を架橋壁（図示略）で連接した形状となっている。環状板１２，１３の対応する円周方向複数箇所には、貫通穴１２ａ，１３ａがそれぞれ設けられており、環状板１２の貫通穴１２ａに支持軸４の一端側が、環状板１３の貫通穴１３ａに支持軸４の他端側が、それぞれ、嵌入されている。支持軸４は、キャリア７にストッパピン（図示略）などを用いて軸方向の位置決めと回り止めとが行われてもよい。環状板１２の中心穴にはスプラインが形成されており、この中心穴に回転軸１１がスプライン嵌合されている。   Hereinafter, details of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram showing an overall configuration of a planetary gear type power transmission device which is an example of a rotating body device manufactured by the manufacturing method of the present invention. Referring to FIG. Sun gear, 3 is a planetary gear (rotary body), 4 is a support shaft (shaft body), 5 is a needle roller, 6 is a cage, 7 is a carrier, and 8 is a washer. As a device to which the lubricating structure according to this embodiment is applied, a planetary gear type power transmission device that transmits rotational power by meshing gears arranged inside and outside is applied. The present invention can also be applied to a planetary friction type power transmission device that transmits rotational power by a combination of friction members arranged in the above. The ring gear 1 is supported around the sun gear 2 and the carrier 7 so as to be rotatable relative to the sun gear 2 and the carrier 7, and a helical gear is formed on the inner peripheral surface thereof. The sun gear 2 has a spline formed on the inner peripheral surface and a helical gear formed on the outer peripheral surface. A rotary shaft 10 is splined to the inner peripheral surface of the sun gear 2. The planetary gear 3 includes a center hole 3a on the inner peripheral surface, and a helical gear is formed on the outer peripheral surface. Although only one planetary gear 3 is shown in the drawing, a plurality of planetary gears 3 are arranged along the circumference of the outer circumference of the sun gear 2 at equal intervals in the circumferential direction. 1 and the sun gear 2 are meshed with each other. The support shaft 4 is inserted into the center hole 3 a of the planetary gear 3 via a needle roller 5 and a cage 6. The needle roller 5 and the cage 6 constitute a rolling bearing called a cage and roller. In the needle roller 5, the inner peripheral surface of the planetary gear 3 is an outer ring raceway, and the outer peripheral surface of the support shaft 4 is an inner ring raceway. The carrier 7 has a shape in which a plurality of circumferential positions on the outer diameter side of two opposing annular plates 12 and 13 are connected by a bridging wall (not shown). Through holes 12 a and 13 a are respectively provided at a plurality of corresponding circumferential positions of the annular plates 12 and 13. One end of the support shaft 4 is connected to the through hole 12 a of the annular plate 12 and the through hole 13 a of the annular plate 13. The other end sides of the support shafts 4 are respectively inserted into the support shafts 4. The support shaft 4 may be positioned and stopped in the axial direction using a stopper pin (not shown) or the like on the carrier 7. A spline is formed in the center hole of the annular plate 12, and the rotary shaft 11 is fitted into the center hole by spline.

上記遊星歯車式の動力伝達装置の動作を説明する。この場合、リング歯車１は固定とする。回転軸１０を駆動する場合には、太陽歯車２が一体回転するので、遊星歯車３が自転および公転し、この公転に伴い、キャリア７と回転軸１１が従動される。これによって、回転軸１０の回転動力が減速されて回転軸１１に伝達される。一方、回転軸１１を駆動する場合には、キャリア７が一体回転するので、遊星歯車３が自転および公転し、この公転に伴い、太陽歯車２と回転軸１０とが従動される。これによって、回転軸１１の回転動力が増速されて回転軸１０に伝達される。   The operation of the planetary gear type power transmission device will be described. In this case, the ring gear 1 is fixed. When the rotating shaft 10 is driven, the sun gear 2 rotates integrally, so that the planetary gear 3 rotates and revolves, and the carrier 7 and the rotating shaft 11 are driven along with this revolution. Thereby, the rotational power of the rotating shaft 10 is decelerated and transmitted to the rotating shaft 11. On the other hand, when the rotating shaft 11 is driven, the carrier 7 rotates integrally, so that the planetary gear 3 rotates and revolves, and the sun gear 2 and the rotating shaft 10 are driven along with the revolution. Thereby, the rotational power of the rotating shaft 11 is increased and transmitted to the rotating shaft 10.

以上の構成を備えた遊星歯車式の動力伝達装置において、回転体装置の潤滑構造として、キャリア７の環状板１２の内側面に油溝１２ｂが形成される一方、支持軸４は、環状板１３側の端部が閉じられ、環状板１２側の端部が開口された、軸方向に潤滑油導入用の中空穴４ａを備えた軸体構成になっている。そして、支持軸４の穴壁には、中空孔４ａに連通する，貫通穴からなる潤滑油供給用入口穴４ｂと潤滑油供給用出口穴４ｃとがそれぞれ円周方向複数箇所に形成されている。支持軸４の潤滑油供給用出口穴４ｃに対応する穴壁の外周面に、針状ころ５を介して回転体である遊星歯車３が回転自在に支持されており、環状板１２の油溝１２ｂから供給されてくる潤滑油は、支持軸４の潤滑油供給用入口穴４ｂを介して中空穴４ａに導入され、次いで、該中空穴４ａ内から潤滑油供給用出口穴４ｃから流出されて針状ころ５を潤滑するようになっている。そして、支持軸４の潤滑油導入用中空穴４ａには、プラグ（止め栓）２０が圧入されている。支持軸４は、このプラグ２０により、一端側開口が閉塞され、潤滑油導入用中空穴４ａ内部の潤滑油は、当該一端側開口から漏れ出ないように密封される。上記プラグ２０は、支持軸４を絞り加工のためのダイスとして用い、該支持軸４の中空穴４ａをダイス穴として、適宜のパンチにより、平板状のプラグ素材から有底円筒状（プラグ状）に成形され、その成形した有底円筒状のプラグ素材がそのまま、さらに支持軸４の中空穴４ａへと圧入されてプラグとなされたものである。   In the planetary gear type power transmission device having the above-described configuration, an oil groove 12b is formed on the inner surface of the annular plate 12 of the carrier 7 as a lubricating structure of the rotating body device, while the support shaft 4 is provided with the annular plate 13. The end of the side is closed, and the end of the annular plate 12 is opened, and the shaft body has a hollow hole 4a for introducing lubricating oil in the axial direction. The hole wall of the support shaft 4 is formed with a plurality of lubricating oil supply inlet holes 4b and lubricating oil supply outlet holes 4c, each of which is a through hole communicating with the hollow hole 4a. . A planetary gear 3 as a rotating body is rotatably supported via needle rollers 5 on the outer peripheral surface of the hole wall corresponding to the lubricating oil supply outlet hole 4c of the support shaft 4, and the oil groove of the annular plate 12 is supported. The lubricating oil supplied from 12b is introduced into the hollow hole 4a through the lubricating oil supply inlet hole 4b of the support shaft 4, and then flows out of the lubricating oil supply outlet hole 4c from the hollow hole 4a. The needle roller 5 is lubricated. A plug (stopper plug) 20 is press-fitted into the lubricating oil introduction hollow hole 4 a of the support shaft 4. One end side opening of the support shaft 4 is closed by the plug 20, and the lubricating oil inside the lubricating oil introduction hollow hole 4 a is sealed so as not to leak from the one end side opening. The plug 20 uses the support shaft 4 as a die for drawing, uses the hollow hole 4a of the support shaft 4 as a die hole, and forms a bottomed cylindrical shape (plug shape) from a flat plug material by an appropriate punch. The bottomed cylindrical plug material thus formed is directly pressed into the hollow hole 4a of the support shaft 4 to form a plug.

図２を参照して、上記潤滑構造の製造例（参考例）を説明する。 A manufacturing example (reference example) of the lubricating structure will be described with reference to FIG.

図２（ａ）で示すように、断面円形をなす潤滑油導入用中空穴４ａと潤滑油供給用入口穴４ｂと潤滑油供給用出口穴４ｃとを備えた支持軸４と、上記中空穴４ａの穴径よりも大径とされた円形平板状の薄肉金属材からなるプラグ素材２１と、支持軸４の中空穴４ａの穴径よりもプラグ素材の素材厚分以下の範囲で外径が小径とされた軸方向に円柱形状をなすパンチ２２とを用意する。この用意した支持軸４とプラグ素材２１とパンチ２２との配置関係を、支持軸４の軸方向一端側の端面４ｄと、圧入治具（パンチ）２２のパンチ端面２２ａとの間にプラグ素材２１を介装するとともに、支持軸４の潤滑油導入用中空穴４ａの中心軸線とプラグ素材２１の中心部位とパンチ２２の中心軸線とを軸方向に一致させた配置関係とする。この場合、支軸４は、絞り加工用のダイスとして図示略の固定部材に固定され、パンチ２２は、絞り加工用のパンチとして図示略の案内部材で支軸４方向に進退自在に配備されている。このパンチ２２の進退は、手動操作することも可能であるが、好ましくは、機械的に自動的に行う。また、プラグ素材２１も図２（ａ）の配置状態を維持する部材にて配置されている。この配置は、手動式でも機械による自動式でもよい。   As shown in FIG. 2A, a support shaft 4 having a lubricating oil introduction hollow hole 4a, a lubricating oil supply inlet hole 4b, and a lubricating oil supply outlet hole 4c having a circular cross section, and the hollow hole 4a. The plug material 21 made of a circular flat thin metal material having a diameter larger than the diameter of the hole and the outer diameter of the plug shaft 21 is smaller than the diameter of the plug material than the diameter of the hollow hole 4a of the support shaft 4. A punch 22 having a cylindrical shape in the axial direction is prepared. The prepared support shaft 4, the plug material 21 and the punch 22 are arranged so that the plug material 21 is arranged between the end surface 4 d on one end side in the axial direction of the support shaft 4 and the punch end surface 22 a of the press-fitting jig (punch) 22. The center axis of the lubricating oil introduction hollow hole 4a of the support shaft 4, the center portion of the plug material 21, and the center axis of the punch 22 are arranged in the axial direction. In this case, the support shaft 4 is fixed to a fixing member (not shown) as a drawing die, and the punch 22 is arranged as a drawing punch so as to freely advance and retract in the direction of the support shaft 4 by a guide member (not shown). Yes. The advance / retreat of the punch 22 can be manually operated, but is preferably automatically performed mechanically. Further, the plug material 21 is also arranged by a member that maintains the arrangement state of FIG. This arrangement may be manual or mechanical.

図２（ｂ）で示すように、支持軸４の軸方向一端側の端面４ｄにプラグ素材２１の一面を宛がった状態にしてパンチ２２のパンチ端面２２ａでプラグ素材２１の他面を中空穴４ａに向けて押圧する。   As shown in FIG. 2 (b), the other end of the plug material 21 is hollowed by the punch end surface 22 a of the punch 22 with one surface of the plug material 21 being in contact with the end surface 4 d on one end side in the axial direction of the support shaft 4. Press toward the hole 4a.

図２（ｃ）で示すように、パンチ２２のパンチ端面２２ａでプラグ素材２１を押圧すると、当該プラグ素材２１はそのパンチ端面２２ａの外面と中空穴４ａの内面とにより絞り成形されて、平板状から有底円筒状に成形されていくとともに、この成形したプラグ素材２１をそのまま、パンチ２２により支持軸４の中空穴４ａ内部の所定位置にまで押し込んだのち、パンチ２２を支持軸４の中空穴４ａから外すと、この有底円筒状のプラグ素材２１は、支持軸４の中空穴４ａの内部に圧入されてプラグ２０とされる。   As shown in FIG. 2C, when the plug material 21 is pressed by the punch end surface 22a of the punch 22, the plug material 21 is drawn by the outer surface of the punch end surface 22a and the inner surface of the hollow hole 4a to form a flat plate shape. The molded plug material 21 is pushed as it is into a predetermined position inside the hollow hole 4 a of the support shaft 4 by the punch 22, and then the punch 22 is inserted into the hollow hole of the support shaft 4. When removed from 4 a, the bottomed cylindrical plug material 21 is press-fitted into the hollow hole 4 a of the support shaft 4 to form a plug 20.

以上の製造例においては、支持軸４がプラグ２０を絞り加工するダイスの代用として、平板状のプラグ素材２１を支持軸４の潤滑油導入用中空穴４ａの内面により有底円筒状に絞り成形して、同時にそのプラグ素材２１をプラグ２０として潤滑油導入用中空穴４ａに圧入できるから、従来のごとく、プラグ２０の圧入工程とは別途の絞り加工でプラグ状に形成する工程の削減が可能となり、結果として、上記潤滑構造を備えた回転体装置、例えば、遊星歯車式等の動力伝達装置の製造コストを低減することができる。   In the above manufacturing example, as a substitute for the die for drawing the plug 20 by the support shaft 4, the flat plug material 21 is drawn into a bottomed cylindrical shape by the inner surface of the lubricating oil introducing hollow hole 4 a of the support shaft 4. At the same time, since the plug material 21 can be press-fitted into the lubricating oil introduction hollow hole 4a as the plug 20, as in the prior art, it is possible to reduce the step of forming the plug into a plug shape by a drawing process separate from the press-fitting step of the plug 20. As a result, it is possible to reduce the manufacturing cost of a rotating body device having the above-described lubricating structure, for example, a planetary gear type power transmission device.

（本発明の実施の形態）
図３を参照して、上記潤滑構造の本発明による製造例を説明する。上記のごとく、支持軸４をダイス２３に代用した場合、ダイス穴となる該支持軸４の中空穴４ａの内面が非研磨面となっていることにより、プラグ２０の形成精度が必ずしも高くなく、また、支持軸４の中空穴４ａの穴縁がバリ取り等のため面取りされているため、プラグ２０の成形精度が必ずしも高くない。そこで、図３の製造例では、プラグ２０の成形精度を高くできるようにしたものである。 ( Embodiment of the present invention )
Referring to FIG. 3, illustrating a manufacturing Zorei according to the invention for the lubricating structure. As described above, when the support shaft 4 is substituted for the die 23, the formation accuracy of the plug 20 is not necessarily high because the inner surface of the hollow hole 4a of the support shaft 4 serving as the die hole is a non-polished surface. Moreover, since the hole edge of the hollow hole 4a of the support shaft 4 is chamfered for deburring or the like, the molding accuracy of the plug 20 is not necessarily high. Therefore, in the manufacturing example of FIG. 3, the molding accuracy of the plug 20 can be increased.

図３（ａ）で示すように、断面円形をなす潤滑油導入用中空穴４ａと潤滑油供給用入口穴４ｂと潤滑油供給用出口穴４ｃとを備えた支持軸４と、軸方向に貫通した中空穴（ダイス穴）２３ａを有しかつ中空穴２３ａの内周面が研磨面とされかつ面取りがないピン角のダイス２３と、外径が支軸４の中空孔４ａの穴径よりも大径とされた円形平板状の薄肉金属材からなるプラグ素材２１と、支持軸４の中空穴４ａの軸方向中間領域２３ｃの穴径よりもプラグ素材２１の素材厚分以下の範囲で外径が小径とされた円柱形状のパンチ（圧入治具）２２とを用意する。ダイス２３の中空穴２３ａは、軸方向に段差を持つ形状とされている。具体的に、ダイス２３の中空穴２３ａは、穴径がプラグ素材２１の外径とほぼ同じとされた軸方向一端側領域（プラグ素材２１の設置領域となる凹面領域）２３ｂと、穴径が支軸４の中空孔４ａの穴径より若干大きい穴径とされた軸方向中間領域（プラグ素材２１の加工領域となる凹面領域）２３ｃと、穴径が支持軸４の外径とほぼ同じとされた軸方向他端側領域（支持軸４への嵌合位置決め領域）２３ｄとからなっている。軸方向中間領域２３ｃと軸方向他端側領域２３ｄとの境界に段差壁２３ｅが形成されている。軸方向一端側領域２３ｂと軸方向中間領域２３ｃとの境界に段差壁２３ｆが形成されている。   As shown in FIG. 3 (a), a support shaft 4 having a lubricating oil introduction hollow hole 4a, a lubricating oil supply inlet hole 4b, and a lubricating oil supply outlet hole 4c having a circular cross-section, and a through hole in the axial direction. A pin-angle die 23 having a hollow hole (die hole) 23a, an inner peripheral surface of the hollow hole 23a being a polished surface and not chamfered, and an outer diameter larger than the hole diameter of the hollow hole 4a of the support shaft 4 The outer diameter of the plug material 21 made of a circular flat thin metal material having a large diameter and the diameter of the plug material 21 less than the diameter of the hole in the axial intermediate region 23c of the hollow hole 4a of the support shaft 4 A cylindrical punch (press-fit jig) 22 having a small diameter is prepared. The hollow hole 23a of the die 23 has a shape having a step in the axial direction. Specifically, the hollow hole 23 a of the die 23 has an axial one end side region (a concave region serving as an installation region of the plug material 21) 23 b in which the hole diameter is substantially the same as the outer diameter of the plug material 21, and a hole diameter. An axial intermediate region (concave surface region that becomes a processing region of the plug material 21) 23c that is slightly larger than the hole diameter of the hollow hole 4a of the support shaft 4, and the hole diameter is substantially the same as the outer diameter of the support shaft 4 The other axial side other end region (fitting positioning region to the support shaft 4) 23d. A step wall 23e is formed at the boundary between the axial intermediate region 23c and the other axial end region 23d. A step wall 23f is formed at the boundary between the axial end region 23b and the axial intermediate region 23c.

この用意した支持軸４とプラグ素材２１とダイス２３とパンチ２２との配置関係を、支持軸４とダイス２３とを軸方向隣り合わせに配置するとともに、ダイス２３とパンチ２２との間にプラグ素材２１を介装し、かつ、中空穴４ａの支持軸４の中空穴４ａの中心軸線とプラグ素材２１の中央部位とダイス２３の中心軸線とパンチ２２の中心軸線とを軸方向に一致させた配置関係とする。   The prepared support shaft 4, the plug material 21, the die 23, and the punch 22 are arranged so that the support shaft 4 and the die 23 are arranged adjacent to each other in the axial direction, and the plug material 21 is interposed between the die 23 and the punch 22. And a positional relationship in which the central axis of the hollow hole 4a of the support shaft 4 of the hollow hole 4a, the central portion of the plug material 21, the central axis of the die 23, and the central axis of the punch 22 are aligned in the axial direction. And

図３（ｂ）で示すように、支持軸４の端面４ｄがダイス２３の段差壁２３ｅに当接するようにして、支持軸４の軸方向一端側にダイス２３の中空穴２３ａの軸方向他端側領域２３ｄを外嵌する。一方、プラグ素材２１をダイス２３の中空穴２３ａの軸方向一端側領域２３ｂの段差壁２３ｆ上に装着するとともに、パンチ２２のパンチ端面２２ａでプラグ素材２１をダイス２３の中空穴２３ａの軸方向中間領域２３ｃに向けて押圧する。   As shown in FIG. 3B, the other end in the axial direction of the hollow hole 23 a of the die 23 on one end side in the axial direction of the support shaft 4 so that the end surface 4 d of the support shaft 4 contacts the step wall 23 e of the die 23. The side region 23d is externally fitted. On the other hand, the plug material 21 is mounted on the stepped wall 23f of the one end region 23b in the axial direction of the hollow hole 23a of the die 23, and at the punch end surface 22a of the punch 22, the plug material 21 is intermediate in the axial direction of the hollow hole 23a of the die 23. Press toward the region 23c.

図３（ｃ）で示すように、上記パンチ２２の押圧により、プラグ素材２１はダイス２３の中空穴２３ａの軸方向中間領域２３ｃの内面とパンチ２２の外面とにより絞り加工を受けて、平板状から有底円筒状に成形されるとともに、この成形したプラグ素材２１のまま、パンチ２２をダイス２３の軸方向中間領域２３ｃから支持軸４の中空穴４ａにまで押し込んでプラグ素材２１を該中空穴４ａ内部に圧入していく。   As shown in FIG. 3C, the plug material 21 is subjected to drawing processing by the inner surface of the axial intermediate region 23 c of the hollow hole 23 a of the die 23 and the outer surface of the punch 22 by the pressing of the punch 22, thereby forming a flat plate shape. The punch material 22 is pressed into the hollow hole 4a of the support shaft 4 from the axial direction intermediate region 23c of the die 23 while the molded plug material 21 is formed, and the plug material 21 is formed into the hollow hole. Press fit into 4a.

図３（ｄ）で示すように、さらにパンチ２２を支持軸４の中空穴４ａに押し込んでプラグ素材２１を支持軸４の中空穴４ａに所定位置（支持軸４の潤滑油入口４ｂの直前）にまで圧入してからパンチ２２を支持軸４の中空穴４ａから外すと、有底円筒状のプラグ素材２１は、支持軸４の中空穴４ａ内にプラグ２０として固定される。   As shown in FIG. 3D, the punch 22 is further pushed into the hollow hole 4a of the support shaft 4, and the plug material 21 is inserted into the hollow hole 4a of the support shaft 4 at a predetermined position (immediately before the lubricating oil inlet 4b of the support shaft 4). When the punch 22 is removed from the hollow hole 4a of the support shaft 4 after being press-fitted to, the bottomed cylindrical plug material 21 is fixed as a plug 20 in the hollow hole 4a of the support shaft 4.

以上の製造例においては、平板状のプラグ素材２１をダイス２３の中空穴２３ａにより有底円筒状に絞り加工して、同時にそのプラグ素材２１をプラグ２０として支持軸４の中空穴４ａに圧入できるから、従来のごとく、プラグ２０の圧入工程とは別途の絞り加工でわざわざプラグ状に形成する工程の削減が可能となり、結果として、上記潤滑構造を備えた回転体装置、例えば、遊星歯車式等の動力伝達装置の製造コストを低減することができる。加えて、支持軸４の中空穴４ａの穴縁の面取や支持軸４の中空穴４ａの非研磨内周面の影響を受けず、また、ダイス２３の中空穴２３ａの穴縁に面取がなく、また該中空穴２３ａの内周面は研磨面であるため、プラグ素材２１からプラグ２０を高精度に形成することができる。   In the above manufacturing example, the flat plug material 21 can be drawn into a bottomed cylindrical shape by the hollow hole 23 a of the die 23, and at the same time, the plug material 21 can be press-fitted into the hollow hole 4 a of the support shaft 4 as the plug 20. Thus, as in the past, it is possible to reduce the step of forming the plug 20 by a drawing process separate from the press-fitting step of the plug 20, and as a result, a rotating body device having the above lubricating structure, for example, a planetary gear type, etc. The manufacturing cost of the power transmission device can be reduced. In addition, it is not affected by the chamfering of the hole edge of the hollow hole 4a of the support shaft 4 or the non-polished inner peripheral surface of the hollow hole 4a of the support shaft 4, and the chamfering is performed on the hole edge of the hollow hole 23a of the die 23. In addition, since the inner peripheral surface of the hollow hole 23a is a polished surface, the plug 20 can be formed from the plug material 21 with high accuracy.

（さらに他の形態）
図４を参照して、上記潤滑構造のさらに他の製造例を説明する。上述した図３の製造例では、支持軸４の中空穴４ａへのパンチ２２の押し込み量の高精度な制御に難点がある。つまり、パンチ２２は、支持軸４の中空穴４ａに対して、その奥側まで押し込みが可能であるから、その押し込みの制御が低下すると、プラグ２０の圧入位置が不正確となり、場合によっては、潤滑油供給用入口穴４ｂや潤滑油供給用出口穴４ｃがプラグ２０で閉塞されてしまうおそれがある。図４に示す製造例では、プラグ２０の圧入位置を高精度にかつ容易に管理制御でき、潤滑構造の製造に要する時間の短縮化も可能としたものである。 (Still other forms)
With reference to FIG. 4, still another example of manufacturing the lubricating structure will be described. In the manufacturing example of FIG. 3 described above, there is a difficulty in controlling the amount of pressing of the punch 22 into the hollow hole 4a of the support shaft 4 with high accuracy. That is, since the punch 22 can be pushed into the hollow hole 4a of the support shaft 4 to the back side, when the control of the push is lowered, the press-fitting position of the plug 20 becomes inaccurate. There is a possibility that the lubricating oil supply inlet hole 4 b and the lubricating oil supply outlet hole 4 c may be blocked by the plug 20. In the manufacturing example shown in FIG. 4, the press-fitting position of the plug 20 can be managed and controlled with high accuracy and easily, and the time required for manufacturing the lubricating structure can be shortened.

図４（ａ）で示すように、断面円形をなす潤滑油導入用中空穴４ａと潤滑油供給用入口穴４ｂと潤滑油供給用出口穴４ｃとを備えた支持軸４と、軸方向に貫通した中空穴（ダイス穴）２３ａを有するダイス２３と、上記中空穴４ａの穴径よりも大径とされた円形平板状の薄肉金属材からなるプラグ素材２１と、軸方向異形の円柱形状のパンチ２２とを用意する。ダイス２３の中空穴２３ａは、軸方向に段差を持つ形状とされている。具体的に、ダイス２３の中空穴２３ａは、穴径がプラグ素材２１の外径とほぼ同じとされた軸方向一端側領域（凹面領域）２３ｂと、穴径が中空穴４ａの穴径より若干大きい穴径とされた軸方向中間領域２３ｃと、穴径が支持軸４の外径とほぼ同じとされた軸方向他端側領域（凹面領域）２３ｄとからなっている。軸方向中間領域２３ｃと軸方向他端側領域２３ｄとの境界に段差壁２３ｅが形成されている。軸方向中間領域２３cと軸方向一端側領域２３bとの境界に段差壁２３ｆが形成されている。このダイス２３の構成は、図３のそれと同様である。   As shown in FIG. 4 (a), a support shaft 4 provided with a lubricating oil introduction hollow hole 4a, a lubricating oil supply inlet hole 4b, and a lubricating oil supply outlet hole 4c having a circular cross section, and penetrates in the axial direction. A die 23 having a hollow hole (die hole) 23a, a plug material 21 made of a thin flat metal material having a diameter larger than that of the hollow hole 4a, and an axially deformed cylindrical punch. 22 are prepared. The hollow hole 23a of the die 23 has a shape having a step in the axial direction. Specifically, the hollow hole 23a of the die 23 has an axial direction one end side region (concave surface region) 23b in which the hole diameter is substantially the same as the outer diameter of the plug material 21, and the hole diameter is slightly larger than the hole diameter of the hollow hole 4a. An axial intermediate region 23c having a large hole diameter and an axial other end region (concave surface region) 23d having a hole diameter substantially the same as the outer diameter of the support shaft 4 are formed. A step wall 23e is formed at the boundary between the axial intermediate region 23c and the other axial end region 23d. A step wall 23f is formed at the boundary between the axial intermediate region 23c and the axial one end side region 23b. The structure of this die 23 is the same as that of FIG.

パンチ２２は、ダイス２３の中空穴２３ａの軸方向中間領域２３ｃの穴径とほぼ同じ外径の中間円柱状突起２２ｂと、中間円柱状突起２２ｂに一体に連成されて支持軸４の中空穴４ａの穴径よりもプラグ素材２１の素材厚分以下の範囲で小さい外径の先端円柱状突起２２ｃとを有する。パンチ２２の本体２２ｇと中間円柱状突起２２ｂとの境界に段差壁２２ｅが、中間円柱状突起２２ｂ先端円柱状突起２２ｃとの境界に段差壁２２ｆが形成されている。中間円柱状突起２２ｂの軸方向長は、ダイス２３の軸方向中間領域２３ｃのそれとほぼ同じである。   The punch 22 is integrally formed with the intermediate cylindrical protrusion 22b having an outer diameter substantially the same as the hole diameter of the axial intermediate region 23c of the hollow hole 23a of the die 23, and the hollow hole of the support shaft 4 It has a cylindrical protrusion 22c having a small outer diameter within a range equal to or smaller than the material thickness of the plug material 21 than the hole diameter of 4a. A step wall 22e is formed at the boundary between the main body 22g of the punch 22 and the intermediate cylindrical protrusion 22b, and a step wall 22f is formed at the boundary between the intermediate cylindrical protrusion 22b and the tip cylindrical protrusion 22c. The axial length of the intermediate cylindrical protrusion 22 b is substantially the same as that of the axial intermediate region 23 c of the die 23.

この用意した支持軸４とプラグ素材２１とダイス２３とパンチ２２との配置関係を、支持軸４とダイス２３とを軸方向隣り合わせに配置するとともに、ダイス２３とパンチ２２との間にプラグ素材２１を介装するとともに、中空穴４ａの支持軸４の中空穴４ａの中心軸線とダイス２３の中心軸線とプラグ素材２１の中央部位とパンチ２２の中心軸線とを軸方向に一致させた配置関係とする。   The prepared support shaft 4, the plug material 21, the die 23, and the punch 22 are arranged so that the support shaft 4 and the die 23 are arranged adjacent to each other in the axial direction, and the plug material 21 is interposed between the die 23 and the punch 22. And an arrangement relationship in which the central axis of the hollow hole 4a of the support shaft 4 of the hollow hole 4a, the central axis of the die 23, the central part of the plug material 21, and the central axis of the punch 22 are aligned in the axial direction. To do.

図４（ｂ）で示すように、図３（ｂ）と同様にして支持軸４の軸方向一端側にダイス２３の中空穴２３ａの軸方向他端側領域２３ｄを外嵌する一方、プラグ素材２１をダイス２３の中空穴２３ａの軸方向一端側領域２３ｂに装着する。この装着状態で、パンチ２２の先端円柱状突起２２ｃのパンチ端面２２ａでプラグ素材２１をダイス２３の中空穴２３ａの軸方向中間領域２３ｃに向けて押圧する。   As shown in FIG. 4 (b), in the same manner as in FIG. 3 (b), the other end side region 23d in the axial direction of the hollow hole 23a of the die 23 is fitted on one end side in the axial direction of the support shaft 4, while the plug material 21 is attached to the axial direction one end side region 23b of the hollow hole 23a of the die 23. In this mounted state, the plug material 21 is pressed toward the axial intermediate region 23 c of the hollow hole 23 a of the die 23 by the punch end surface 22 a of the tip cylindrical protrusion 22 c of the punch 22.

図４（ｃ）で示すように、上記パンチ２２の先端円柱状突起２２ｃの所定量の押圧により、パンチ２２の段差壁２２ｅがダイス２３の段差壁２３ｆに当接するまでは、パンチ２２は、支持軸４の中空穴４ａへ向けてプラグ素材２１を圧入させることができる。この圧入により、プラグ素材２１はダイス２３の中空穴２３ａの軸方向中間領域２３ｃの内面とパンチ２２の外面とにより絞り加工を受けて、平板状から有底円筒状に形成されていくとともに、この形成のまま、パンチ２２をダイス２３の軸方向中間領域２３ｃから支持軸４の中空穴４ａにまで押し込んでプラグ素材２１を該中空穴４ａ内部に圧入していく。   As shown in FIG. 4C, the punch 22 is supported until the step wall 22e of the punch 22 comes into contact with the step wall 23f of the die 23 by the predetermined amount of pressing of the cylindrical protrusion 22c at the tip of the punch 22. The plug material 21 can be pressed into the hollow hole 4 a of the shaft 4. By this press-fitting, the plug material 21 is subjected to drawing by the inner surface of the axial intermediate region 23c of the hollow hole 23a of the die 23 and the outer surface of the punch 22, and is formed into a bottomed cylindrical shape from a flat plate shape. The punch 22 is pushed from the axial direction intermediate region 23c of the die 23 into the hollow hole 4a of the support shaft 4 as it is, and the plug material 21 is press-fitted into the hollow hole 4a.

図４（ｄ）で示すように、さらにパンチ２２を支持軸４の中空穴４ａに押し込んでプラグ素材２１を支持軸４の中空穴４ａに所定位置にまで圧入すると、パンチ２２の段差壁２２ｅがダイス２３の段差壁２３ｆに当接し、パンチ２２はその当接した以降、支持軸４の中空穴４ａへ向けてプラグ素材２１を圧入させることができない。この状態で、パンチ２２を支持軸４の中空穴４ａから外すと、有底円筒状とされたプラグ素材２１は、支持軸４の中空穴４ａ内部に圧入されてプラグ２０として支持軸４の中空穴４ａ内部に固定される。   As shown in FIG. 4D, when the punch 22 is further pushed into the hollow hole 4a of the support shaft 4 and the plug material 21 is pressed into the hollow hole 4a of the support shaft 4 to a predetermined position, the step wall 22e of the punch 22 is formed. After the contact with the step wall 23f of the die 23 and the contact of the punch 22, the plug material 21 cannot be press-fitted toward the hollow hole 4a of the support shaft 4. In this state, when the punch 22 is removed from the hollow hole 4 a of the support shaft 4, the plug material 21 having a bottomed cylindrical shape is press-fitted into the hollow hole 4 a of the support shaft 4 and is hollow as the plug 20. It is fixed inside the hole 4a.

以上の製造例においては、平板状のプラグ素材２１をダイス２３の中空穴２３ａにより有底円筒状に絞り加工して、同時にそのプラグ素材２１をプラグ２０として支持軸４の中空穴４ａに圧入できるから、従来のごとく、プラグ２０の圧入工程とは別途の絞り加工でわざわざ有底円筒状に形成する工程の削減が可能となり、結果として、上記潤滑構造を備えた回転体装置、例えば、遊星歯車式等の動力伝達装置の製造コストを低減することができる。加えて、上記図３の形態の作用効果を有するとともに、パンチ２２の、ダイス２３の中空穴２３ａならびに支持軸４の中空穴４ａへの押し込みを、パンチ２２の段差壁２２ｅとダイス２３の段差壁２３ｆとの当接により管理することができるから、パンチ２２の圧入操作が容易となる。また、パンチ２２による、プラグ素材２１の押し込み代を、パンチ２２の段差壁２２ｆにより容易に管理することができる。   In the above manufacturing example, the flat plug material 21 can be drawn into a bottomed cylindrical shape by the hollow hole 23 a of the die 23, and at the same time, the plug material 21 can be press-fitted into the hollow hole 4 a of the support shaft 4 as the plug 20. Therefore, as in the past, it is possible to reduce the step of forming the bottomed cylinder by drawing separately from the press-fitting step of the plug 20, and as a result, a rotating body device having the above-described lubricating structure, for example, a planetary gear The manufacturing cost of a power transmission device such as an expression can be reduced. In addition, the punch 22 is pushed into the hollow hole 23a of the die 23 and the hollow hole 4a of the support shaft 4 and the step wall 22e of the punch 22 and the step wall of the die 23 have the operational effects of the form shown in FIG. Since it can manage by contact | abutting with 23f, the press-fit operation of the punch 22 becomes easy. In addition, the push-in allowance of the plug material 21 by the punch 22 can be easily managed by the step wall 22 f of the punch 22.

（他の適用例）
以上の潤滑構造は、図１の遊星歯車式の動力伝達装置に適用する以外に、図５で示すように、エンジン用ころ軸受にも適用して実施することができる。例えば、自動車等のエンジンのコネクティングロッドの大端部と、クランクシャフトのクランクピンとの間にケージアンドローラと呼ぶころ軸受を介装している。ケージアンドローラは、複数個のころと保持器とから構成されるもので、その保持器には、いわゆるＭ型や、門型と称されるものがある。以下、図５を参照して、ころ軸受２９は、エンジンのコネクティングロッド（コンロッド）３０の大端部３１とクランクシャフト３２のクランクピン（回転体）３３との間に装着される。大端部３１がころ軸受２９の外輪部材に、クランクピン３３がころ軸受２９の内輪部材に相当する。 (Other application examples)
The above lubricating structure can be applied to an engine roller bearing as shown in FIG. 5 in addition to the planetary gear type power transmission device of FIG. For example, a roller bearing called a cage and roller is interposed between a large end portion of a connecting rod of an engine such as an automobile and a crankpin of a crankshaft. The cage-and-roller is composed of a plurality of rollers and a cage, and the cage includes a so-called M type and a gate type. Hereinafter, referring to FIG. 5, the roller bearing 29 is mounted between the large end portion 31 of the connecting rod (connecting rod) 30 of the engine and the crank pin (rotating body) 33 of the crankshaft 32. The large end portion 31 corresponds to the outer ring member of the roller bearing 29, and the crank pin 33 corresponds to the inner ring member of the roller bearing 29.

ころ軸受２９は、針状ころ３４と保持器３５とからなる。針状ころ３４は、コンロッド３０の大端部３１の内周面を外輪軌道とし、クランクピン３３の外周面を内輪軌道とする。クランクピン３３は、上記実施形態の支持軸４に相当するものであり、針状ころ３４の配置空間に潤滑油を供給するため、潤滑油導入用中空穴３３ａ、潤滑油供給用入口穴３３ｂ、潤滑油供給用出口穴３３ｃが設けられている。潤滑油供給用入口穴３３ｂは、クランクピン３３においてバランスウェイト３７に対する嵌合部に径方向に沿って設けられている。潤滑油導入用中空穴３３ａは、クランクピン３３の一端面側から他端側途中まで軸方向に沿って設けられており、その開放端はプラグ３６により塞がれている。潤滑油供給用出口穴３３ｃは、ころ軸受２９に潤滑油を供給できるようになっている。   The roller bearing 29 includes a needle roller 34 and a cage 35. In the needle roller 34, the inner peripheral surface of the large end portion 31 of the connecting rod 30 is an outer ring raceway, and the outer peripheral surface of the crank pin 33 is an inner ring raceway. The crankpin 33 corresponds to the support shaft 4 of the above-described embodiment. In order to supply the lubricating oil to the space in which the needle rollers 34 are disposed, the lubricating oil introduction hollow hole 33a, the lubricating oil supply inlet hole 33b, A lubricating oil supply outlet hole 33c is provided. The lubricating oil supply inlet hole 33 b is provided along the radial direction in the fitting portion of the crank pin 33 with respect to the balance weight 37. The lubricating oil introduction hollow hole 33 a is provided along the axial direction from one end surface side to the other end side of the crank pin 33, and its open end is closed by a plug 36. The lubricating oil supply outlet hole 33 c can supply the lubricating oil to the roller bearing 29.

以上の構成において、クランクピン３３と該クランクピン３３の中空穴３３ａに圧入されたプラグ３６とからなる潤滑構造においても、上述の実施形態と同様に製造することができる。   In the above configuration, the lubricating structure including the crank pin 33 and the plug 36 press-fitted into the hollow hole 33a of the crank pin 33 can be manufactured in the same manner as in the above-described embodiment.

（さらに他の適用例）
本発明は、一対の対向側壁間に架設した支軸にローラを直接、あるいは、ブッシュ等のすべり軸受を介して、ローラを外装したロッカアームにも適用することができる。すなわち、このロッカアームを、支持軸に潤滑油導入用中空穴を設けるとともに、その中空穴の穴壁に潤滑油供給用入口穴と潤滑油供給用出口穴となる貫通穴を形成し、その潤滑油供給用出口穴に対応する穴壁の外周面に、回転体としてローラを支持した構成とし、かつ、支持軸の潤滑油供給用入口穴を介して当該支持軸の中空穴に導入した潤滑油を潤滑油供給用出口穴から流出させて軸受部を潤滑するものとする。そして、上記支持軸の一端側開口を閉塞するプラグを、平板状のプラグ素材を上記中空穴の内面または上記支持軸の一端側に装着したダイスの中空穴の内面により有底円筒状に形成して上記支持軸の中空穴に圧入したことにより、構成することができる。 (Still other application examples)
The present invention can also be applied to a rocker arm in which a roller is externally mounted on a support shaft installed between a pair of opposing side walls or via a plain bearing such as a bush. That is, the rocker arm is provided with a lubricating oil introduction hollow hole on the support shaft, and a through hole serving as a lubricating oil supply inlet hole and a lubricating oil supply outlet hole is formed in a hole wall of the hollow hole. Lubricating oil introduced into the hollow hole of the support shaft through the lubricating oil supply inlet hole of the support shaft is configured such that a roller is supported on the outer peripheral surface of the hole wall corresponding to the supply outlet hole. It is assumed that the bearing is lubricated by flowing out from the outlet hole for supplying lubricating oil. Then, a plug that closes the opening on one end of the support shaft is formed into a bottomed cylindrical shape by a flat plug material on the inner surface of the hollow hole or the inner surface of the hollow hole of the die attached to the one end side of the support shaft. Then, it can be configured by press-fitting into the hollow hole of the support shaft.

本発明の製造方法により製造される回転体装置の潤滑構造を具備した遊星歯車式動力伝達装置の上半分の断面図Sectional drawing of the upper half of the planetary gear type power transmission device provided with the lubricating structure of the rotating body device manufactured by the manufacturing method of the present invention. 図１の回転体装置の潤滑構造の製造方法（参考例）の説明に供する図The figure which uses for description of the manufacturing method (reference example) of the lubrication structure of the rotary body apparatus of FIG. 本発明の実施形態に係る回転体装置の潤滑構造の製造方法の説明に供する図 The figure which uses for description of the manufacturing method of the lubrication structure of the rotary body apparatus which concerns on embodiment of this invention さらに他の回転体装置の潤滑構造の製造方法の説明に供する図Further, a diagram for explaining a method of manufacturing a lubrication structure of another rotating body device 本発明の製造方法により製造される回転体装置の潤滑構造を具備したエンジン用ころ軸受の上半分の断面図Sectional drawing of the upper half of the roller bearing for engines provided with the lubrication structure of the rotary body apparatus manufactured by the manufacturing method of this invention 従来の回転体装置の潤滑構造を具備した遊星歯車式動力伝達装置の上半分の断面図Sectional view of the upper half of a planetary gear type power transmission device having a lubricating structure for a conventional rotating body device

符号の説明Explanation of symbols

４…支持軸（軸体）
４ａ…支持軸４の潤滑油導入用中空穴
２１…プラグ素材
２２…パンチ（圧入治具） 4. Support shaft (shaft body)
4a ... Lubrication hole 21 for introducing lubricating oil in support shaft 4 ... Plug material 22 ... Punch (press fitting jig)

Claims (1)

回転体装置の軸受に潤滑油を供給するための一端側が開口した潤滑油導入用中空穴と潤滑油供給用出口穴とを備えた軸体と、上記開口側から上記中空穴内に圧入されて該開口を閉塞するプラグとを備えた回転体装置の潤滑構造の製造方法であって、
上記軸体の一端側にダイスの一端側を装着し、この装着の状態でダイスの他端側に平板状のプラグ素材を配置し、この配置したプラグ素材を圧入治具により当該ダイスの中空穴に圧入して有底筒状のプラグ素材に成形し、この成形したプラグ素材をそのまま上記ダイスの中空孔から上記軸体の上記中空穴へと圧入して上記プラグとなす、ことを特徴とする回転体装置の潤滑構造の製造方法。 A shaft body provided with a lubricating oil introduction hollow hole and a lubricating oil supply outlet hole opened at one end side for supplying lubricating oil to the bearing of the rotating body device, and press-fitted into the hollow hole from the opening side. A method for manufacturing a lubricating structure of a rotating body device including a plug that closes an opening ,
One end side of the die is attached to one end side of the shaft body, and a flat plug material is arranged on the other end side of the die in this attached state, and this arranged plug material is inserted into the hollow hole of the die by a press-fitting jig. by press-fitting molded into a bottomed cylindrical plug material in said plug and making this molded plug material as it is press-fitted into the hollow hole of the shaft member from the hollow hole of the die, characterized in that A method for manufacturing a lubricating structure of a rotating body device.
JP2004139504A 2004-05-10 2004-05-10 Method for manufacturing lubricating structure of rotating body device Expired - Fee Related JP4517717B2 (en)

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JP4911062B2 (en) * 2008-02-18 2012-04-04 日本精工株式会社 Pinion shaft
CN102493855B (en) * 2011-11-22 2014-02-26 力帆实业(集团)股份有限公司 Sealing structure for plug of atmospheric side of auxiliary shaft of engine
US9631716B2 (en) 2012-07-19 2017-04-25 Koyo Bearings North America Llc Plug for a planetary pin assembly
JP2020118182A (en) 2019-01-21 2020-08-06 株式会社ジェイテクト Support shaft for planetary gear and planetary gear train

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JPS5217363A (en) * 1975-06-25 1977-02-09 Ishizuka Seiki Kk Method of making metallic drive plugs
JPS5472178A (en) * 1977-10-21 1979-06-09 Continental Group Easily opened container and making method thereof
JPS6059861U (en) * 1983-09-30 1985-04-25 アイシン精機株式会社 Bearing lubrication mechanism for automatic transmission output shaft
JPS6362968A (en) * 1986-09-01 1988-03-19 Aisin Warner Ltd Seal method for hole
JP2604564Y2 (en) * 1993-09-30 2000-05-22 ジヤトコ・トランステクノロジー株式会社 Planetary gear set

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217363A (en) * 1975-06-25 1977-02-09 Ishizuka Seiki Kk Method of making metallic drive plugs
JPS5472178A (en) * 1977-10-21 1979-06-09 Continental Group Easily opened container and making method thereof
JPS6059861U (en) * 1983-09-30 1985-04-25 アイシン精機株式会社 Bearing lubrication mechanism for automatic transmission output shaft
JPS6362968A (en) * 1986-09-01 1988-03-19 Aisin Warner Ltd Seal method for hole
JP2604564Y2 (en) * 1993-09-30 2000-05-22 ジヤトコ・トランステクノロジー株式会社 Planetary gear set

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