JP6248787B2 - Thrust spherical roller bearing cage and manufacturing method thereof - Google Patents

Thrust spherical roller bearing cage and manufacturing method thereof Download PDF

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JP6248787B2
JP6248787B2 JP2014092362A JP2014092362A JP6248787B2 JP 6248787 B2 JP6248787 B2 JP 6248787B2 JP 2014092362 A JP2014092362 A JP 2014092362A JP 2014092362 A JP2014092362 A JP 2014092362A JP 6248787 B2 JP6248787 B2 JP 6248787B2
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spherical roller
thrust
columnar convex
column
base
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JP2015209930A (en
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廣幸 前田
廣幸 前田
治樹 中村
治樹 中村
通之 上地
通之 上地
政幹 岡野
政幹 岡野
建治 手嶋
建治 手嶋
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Nakanishi Metal Works Co Ltd
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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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings 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
    • F16C19/30—Bearings 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 for axial load mainly
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/54—Cages for rollers or needles made from wire, strips, or sheet metal
    • F16C33/542—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal
    • F16C33/547—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from two parts, e.g. two discs or rings joined together
    • 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Rolling Contact Bearings (AREA)

Description

本発明は、各種機械装置の回転支持部を構成するスラスト球面ころ軸受の球面ころを脱落防止して回転自在に保持する保持器に関わり、特に超大型のスラスト球面ころ軸受に好適な保持器及びその製造方法に関する。   The present invention relates to a cage that holds a spherical roller of a thrust spherical roller bearing that constitutes a rotation support portion of various mechanical devices so as to prevent the roller from falling off, and is particularly suitable for a super-large thrust spherical roller bearing and It relates to the manufacturing method.

スラスト球面ころ軸受（例えば、特許文献１、２参照）は、外輪軌道の曲率中心が軸受の回転中心軸と一致した点を中心とする球面であって、転動体として樽状のころ（球面ころ）を用いた軸受であり、調心性があることから取付け誤差や衝撃荷重により外輪と内輪が傾斜した場合でも使用できる利点があるので、振動・衝撃荷重を受ける各種産業機械装置等の回転支軸部に広く使用されている。
ここで、特許文献１のスラスト球面ころ軸受用保持器は、最も一般的な構造である冷間圧延鋼板又は熱間圧延鋼板等の鋼板をプレス加工して形成されるプレス保持器（１０４）であり、内輪（１０２）の外径縁部に形成された係止段部（１０２１）と係合して分離を防止する係止部材（ストッパー１０９，２０９，３０９，４０９，５０９，６０９，７０９，８０９，９０９）を、保持器本体（１０８）と別個に形成したものである。
また、特許文献２のスラスト球面ころ軸受用保持器は、保持器本体（３２）を削り出しにより製作するもみ抜き保持器（３１）であり、リング状蓋（３３）のピン孔（３４）から、保持器本体（３２）の柱部（３２ｂ）の端面に形成されたピン孔（３４）にピン（３５）を挿入して加締めることにより、ポケット（３２ｃ）の大径側開口端を閉塞するリング状蓋（３３）を保持器本体（３２）に取り付けたものである。 A thrust spherical roller bearing (see, for example, Patent Documents 1 and 2) is a spherical surface centered at a point where the center of curvature of the outer ring raceway coincides with the rotation center axis of the bearing, and is a barrel roller (spherical roller) as a rolling element. ), And since it is self-aligning, it can be used even when the outer ring and inner ring are inclined due to mounting error or impact load. Widely used in departments.
Here, the thrust spherical roller bearing cage of Patent Document 1 is a press cage (104) formed by pressing a steel plate such as a cold rolled steel plate or a hot rolled steel plate, which is the most general structure. There are locking members (stoppers 109, 209, 309, 409, 509, 609, 709, which engage with a locking step (1021) formed on the outer diameter edge of the inner ring (102) to prevent separation. 809, 909) are formed separately from the cage body (108).
Further, the thrust spherical roller bearing retainer of Patent Document 2 is a machined retainer (31) that is manufactured by scraping the retainer body (32), and from the pin hole (34) of the ring-shaped lid (33). The pin (35) is inserted into the pin hole (34) formed in the end surface of the pillar portion (32b) of the cage body (32) and crimped to close the large-diameter side opening end of the pocket (32c). A ring-shaped lid (33) is attached to the cage body (32).

機械装置の大型化に伴い、使用されるころ軸受も大型化しており、保持器についても、例えば直径が１ｍ〜３ｍ程度で、素材となる鋼板の板厚が８ｍｍ〜１６ｍｍ程度である超大型サイズの保持器（以下において、「超大型保持器」という。）が必要となっている。
超大型サイズのスラスト球面ころ軸受用保持器を製作する場合、プレス保持器では、巨大な金型が必要になるとともに特大のプレス容量を持つプレス機械が必要になる等の製造上及び設備上の問題があるため、真鍮材によるもみ抜き保持器が用いられることが多い。
しかしながら真鍮材による超大型サイズのもみ抜き保持器では、生産数量が限られるために特に製造コストの低減要求が大きい超大型保持器において、加工時間が膨大になるとともに材料の歩留まりが悪いため、製造コストが増大するという問題点がある。その上、重量が増大するとともに、高負荷容量下では柱部に必要な強度を確保できないという問題点もある。 With the increase in size of mechanical devices, the roller bearings used are also increasing in size, and the cages, for example, have a diameter of about 1 m to 3 m, and the steel plate thickness of the material is about 8 mm to 16 mm. (Hereinafter referred to as “ultra-large cage”).
When manufacturing an extremely large size thrust spherical roller bearing cage, the press cage requires a huge mold and a press machine with an extra large press capacity. Due to problems, a machined cage made of brass is often used.
However, for ultra-large size machined cages made of brass, the production quantity is limited, so in particular, for ultra-large cages that require a large reduction in manufacturing costs, the processing time is enormous and the material yield is poor. There is a problem that the cost increases. In addition, the weight increases, and there is also a problem that the necessary strength for the pillar portion cannot be secured under a high load capacity.

特許文献３は超大型保持器についての発明であり、球面ころ軸受用保持器（１Ｂ）については、実施の形態２（図１７〜２５）、実施の形態６（図４８〜５８）及び実施の形態７（図５９〜６９）に記載されている。すなわち、軸方向に離間した一対のリング部（４，６）を、球面ころ（ＲＢ）の外周面に摺接する複数の柱部（５）により繋いだ形状を成し、周壁部に前記球面ころ（ＲＢ）を収容保持するための複数のポケット孔（Ｐ）が周方向等分に形成された球面ころ軸受用保持器（１Ｂ）であって、前記リング部（４，６）の一方及び柱部（５）からなる、前記柱部（５）の先端に四角柱状凸部（５Ａ）が設けられた基体（２）と、前記リング部（４，６）の他方からなる、前記柱部（５）の四角柱状凸部（５Ａ）に嵌合する四角孔（４Ａ，６Ａ）が設けられた連結体（３）とを別部材とし、これら（２，３）がそれぞれ鋼板を切断加工したブランク（２Ａ，３Ａ）を基にして製造され、前記基体の四角柱状凸部（５Ａ）を前記連結体（３）の四角孔（４Ａ，６Ａ）に嵌合した状態で結合固定されたものである。
このような構成によれば、超大型保持器において、別部材である基体（２）及び連結体（３）を組み付けて保持器（１Ｂ）を形成することから、基体（２）及び連結体（３）の材料の変更や形状の変更がしやすいため、所要の強度及び剛性を容易に確保できる。
その上、基体（２）及び連結体（３）が、それぞれ鋼板をレーザ切断等により切断加工したブランク（２Ａ，３Ａ）を基にして製造されることから、超大型保持器を製造する際にポケット孔を打ち抜くための金型が不要になるとともに、形状精度の確保が容易になる。 Patent Document 3 is an invention of a super-large cage, and the spherical roller bearing cage (1B) is described in Embodiment 2 (FIGS. 17 to 25), Embodiment 6 (FIGS. 48 to 58), and implementation. It is described in Form 7 (FIGS. 59 to 69). That is, a pair of ring portions (4, 6) spaced apart in the axial direction are connected by a plurality of column portions (5) that are in sliding contact with the outer peripheral surface of the spherical roller (RB), and the spherical roller is formed on the peripheral wall portion. A spherical roller bearing retainer (1B) in which a plurality of pocket holes (P) for accommodating and holding (RB) are equally divided in the circumferential direction, and one of the ring portions (4, 6) and a column The base part (2) comprising the part (5) and having the quadrangular columnar convex part (5A) provided at the tip of the pillar part (5), and the pillar part comprising the other of the ring parts (4, 6) ( A blank obtained by cutting a steel plate into a separate member from the connector (3) provided with the square holes (4A, 6A) fitted to the square columnar convex portions (5A) of 5). (2A, 3A) is manufactured, and the quadrangular columnar convex portion (5A) of the base is formed into a square hole of the connector (3). 4A, in which coupled fixed in a state fitted to 6A).
According to such a configuration, since the holder (1B) is formed by assembling the base body (2) and the connecting body (3), which are separate members, in the super-large cage, the base body (2) and the connecting body ( Since it is easy to change the material and shape of 3), the required strength and rigidity can be easily secured.
In addition, since the base body (2) and the coupling body (3) are manufactured based on blanks (2A, 3A) obtained by cutting a steel plate by laser cutting or the like, respectively, when manufacturing an ultra-large cage. A mold for punching the pocket hole is not necessary, and it is easy to ensure the shape accuracy.

特許文献３の球面ころ軸受用保持器（１Ｂ）において、基体（２）及び連結体（３）の結合固定は、例えば、基体（２）の四角柱状凸部（５Ａ）を連結体（３）の四角孔（４Ａ，６Ａ）に挿入した状態で四角柱状凸部（５Ａ）の先端を連結体（３）の表面から突出させ、四角柱状凸部（５Ａ）の先端を揺動加締め加工により塑性変形させて拡径することにより行われる（例えば、実施の形態２参照）。
このような構成によれば、基体（２）及び連結体（３）の結合固定が揺動加締め加工により行われるので、垂直軸方向の衝撃荷重が柱部（５）に作用しないことから、柱部（５）の反りや変形等を抑制できるため、鋼板を切断加工したブランク（２Ａ，３Ａ）を基にして製造される超大型保持器（１Ｂ）の精度の確保が容易になるとともに、基体（２）及び連結体（３）の結合固定を溶接接合により行う場合のような高熱の影響による保持器（１Ｂ）の精度の悪化もない。
その上、基体（２）及び連結体（３）の結合固定が揺動加締め加工により行われるので、基体（２）及び連結体（３）の結合固定を溶接接合により行う場合のような溶接部の経年劣化の恐れがないため、基体（２）及び連結体（３）の結合固定部の信頼性を長期にわたって確保できる。
また、特許文献３には、隣り合う柱部（５，５）の一方から他方で向かって突出する一対の突出片（２０，２０）を設けて、突出片（２０，２０）の下面（２０Ｂ，２０Ｂ）を受け具（２１，２１）により支持しながら揺動加締め加工を行うことにより、加締め機（１５）の推力（Ｑ）を大きくして加工時間を短縮する技術も開示されている（実施の形態５の図４５参照）。 In the spherical roller bearing retainer (1B) of Patent Document 3, the base (2) and the coupling body (3) are connected and fixed by, for example, connecting the quadrangular columnar convex portion (5A) of the base body (2) to the coupling body (3). In the state inserted into the square holes (4A, 6A), the tip of the quadrangular columnar convex portion (5A) protrudes from the surface of the coupling body (3), and the tip of the quadrangular columnar convex portion (5A) is swung and caulked. This is performed by plastic deformation and expanding the diameter (for example, see Embodiment 2).
According to such a configuration, since the coupling and fixing of the base body (2) and the coupling body (3) are performed by swing caulking, the impact load in the vertical axis direction does not act on the column portion (5). Since it is possible to suppress warping and deformation of the column part (5), it becomes easy to ensure the accuracy of the super-large cage (1B) manufactured based on the blanks (2A, 3A) obtained by cutting the steel plate, There is no deterioration in the accuracy of the cage (1B) due to the influence of high heat as in the case where the base (2) and the coupling body (3) are joined and fixed by welding.
In addition, since the fixing of the base body (2) and the connecting body (3) is performed by swing caulking, welding as in the case where the fixing of the base body (2) and the connecting body (3) is performed by welding joining is performed. Since there is no fear of deterioration of the part over time, the reliability of the joint fixing part of the base body (2) and the coupling body (3) can be secured over a long period of time.
Moreover, in patent document 3, a pair of protrusion piece (20,20) which protrudes toward the other from one side of adjacent pillar part (5,5) is provided, and the lower surface (20B) of protrusion piece (20,20). , 20B), a technique for increasing the thrust (Q) of the caulking machine (15) and shortening the machining time by performing swing caulking while being supported by the receivers (21, 21) is also disclosed. (See FIG. 45 of Embodiment 5).

実開昭６１−３５２２３号公報Japanese Utility Model Publication No. 61-35223 特開２０１２−２１５２６４号公報JP 2012-215264 A 国際公開第２０１３／１３３３６３号パンフレットInternational Publication No. 2013/133363 Pamphlet

特許文献３の球面ころ軸受用保持器には前記特徴がある。
しかしながら、基体ブランク（２Ａ）から基体（２）を成形した後、特許文献１と同様の手順で基体（２）のポケット孔（Ｐ）に球面ころ（ＲＢ）を入れて内輪を装着した状態で、連結体を取り付けるために揺動加締め加工を行う場合において、実施の形態５のように一対の突出片（２０，２０）を設けていたとしても、ポケット孔（Ｐ）内に球面ころ（ＲＢ）があるので、図４５のように突出片（２０，２０）の下面（２０Ｂ，２０Ｂ）を受け具（２１，２１）により支持できず、よって柱部（５）が座屈変形しないように推力を抑える必要があるため、加締め機の推力を大きくできないことから加工時間が長くなって生産性が低下する。
その上、柱部（５）の先端の１個の四角柱状凸部（５Ａ）を、連結体（３）の四角孔（４Ａ，６Ａ）を通して連結体（３）の表面から突出させた状態で揺動加締め加工を行うので、四角柱状凸部（５Ａ）と四角孔（４Ａ，６Ａ）はクリアランスがあるため、揺動加締め加工により四角柱状凸部（５Ａ）の先端を塑性変形させて拡径する際に、柱部（５）にねじれ変形が生じる場合がある。 The spherical roller bearing retainer of Patent Document 3 has the above characteristics.
However, after molding the base body (2) from the base blank (2A), the spherical ring (RB) is put into the pocket hole (P) of the base body (2) and the inner ring is mounted in the same procedure as in Patent Document 1. Even when a pair of protruding pieces (20, 20) is provided as in the fifth embodiment in the case of performing the swing caulking process for attaching the coupling body, the spherical rollers (P RB), the lower surfaces (20B, 20B) of the projecting pieces (20, 20) cannot be supported by the receivers (21, 21) as shown in FIG. 45, so that the column portion (5) does not buckle and deform. Therefore, since the thrust of the crimping machine cannot be increased, the machining time becomes longer and the productivity is lowered.
In addition, in the state where one square columnar convex portion (5A) at the tip of the column portion (5) is projected from the surface of the connection body (3) through the square holes (4A, 6A) of the connection body (3). Since the swing caulking process is performed, there is a clearance between the square columnar convex part (5A) and the square holes (4A, 6A), so that the tip of the square columnar convex part (5A) is plastically deformed by the swing caulking process. When the diameter is expanded, a torsional deformation may occur in the column part (5).

そこで本発明が前述の状況に鑑み、解決しようとするところは、特許文献３のような基体及び連結体からなる超大型保持器で、基体のポケット孔に球面ころを収容して内輪を装着した状態で、内輪の外周面に形成された係止段部に連結体が係止されて球面ころ及び内輪と一体化される（球面ころ及び保持器並びに内輪のばらけが防止される）スラスト球面ころ軸受用保持器において、基体及び連結体の結合固定部の信頼性が高く、基体及び連結体を結合固定する結合固定工程を行う際における柱部の変形を抑制しながら生産性を向上できるスラスト球面ころ軸受用保持器及びその製造方法を提供する点にある。   Therefore, in view of the above-described situation, the present invention intends to solve an ultra-large cage composed of a base body and a connecting body as in Patent Document 3, in which a spherical roller is accommodated in a pocket hole of the base body and an inner ring is mounted. In this state, the connecting body is locked to the locking step formed on the outer peripheral surface of the inner ring, and is integrated with the spherical roller and the inner ring (the spherical roller, the cage and the inner ring are prevented from being scattered). Thrust spherical surface that can improve productivity while suppressing the deformation of the column part in the bearing retainer with high reliability of the coupling and fixing part of the base body and the coupling body and performing the coupling and fixing process for coupling and fixing the base body and the coupling body. It is in the point which provides the cage for roller bearings, and its manufacturing method.

本発明に係るスラスト球面ころ軸受用保持器は、前記課題解決のために、軸方向に離間した小径リング部及び大径リング部を球面ころの外周面に摺接する複数の柱部により繋いだ形状を成し、前記球面ころを収容保持するための複数のポケット孔が周方向等分に形成され、前記球面ころを前記ポケット孔に収容してスラスト球面ころ軸受の内輪を装着した状態で、前記内輪の外周面に形成された係止段部に前記大径リング部が係止され、前記球面ころ及び前記内輪と一体化された状態が保持されるスラスト球面ころ軸受用保持器であって、前記小径リング部及び前記柱部からなり、前記柱部の先端に四角柱状凸部が設けられるとともに、前記柱部の前記四角柱状凸部の基端側に周方向の前後面から突出する第１突出片、及び前記第１突出片の前記小径リング部側に位置して周方向の前後面から突出する、前記第１突出片よりも短い第２突出片が設けられた基体と、前記大径リング部からなる、前記四角柱状凸部が挿入される四角孔が設けられた連結体とを別部材とし、これらがそれぞれ鋼板を切断加工したブランクを基にして製造されてなり、前記基体の四角柱状凸部を前記連結体の四角孔に挿入した状態で結合固定されたことを特徴とする（請求項１）。   The thrust spherical roller bearing retainer according to the present invention has a shape in which a small-diameter ring portion and a large-diameter ring portion that are separated in the axial direction are connected by a plurality of column portions that are in sliding contact with the outer peripheral surface of the spherical roller, in order to solve the above-described problem. A plurality of pocket holes for accommodating and holding the spherical roller are formed equally in the circumferential direction, the spherical roller is received in the pocket hole and the inner ring of the thrust spherical roller bearing is mounted, A thrust spherical roller bearing retainer in which the large-diameter ring portion is locked to a locking step portion formed on the outer peripheral surface of the inner ring, and the state integrated with the spherical roller and the inner ring is maintained. A first column projecting from the front and rear surfaces in the circumferential direction is formed of the small-diameter ring portion and the column portion, and a quadrangular columnar convex portion is provided at a tip of the column portion, and a proximal end side of the quadrangular columnar convex portion of the column portion. A projecting piece, and the first projecting piece The quadrangular columnar convex portion comprising the base body provided with the second projecting piece shorter than the first projecting piece and located on the small diameter ring unit side and projecting from the front and rear surfaces in the circumferential direction, and the large diameter ring unit Are formed on the basis of a blank obtained by cutting a steel plate, and the rectangular columnar convex portion of the base is formed as a square hole of the connection body. It is characterized by being coupled and fixed in a state where it is inserted into the (claim 1).

このような構成によれば、別部材である基体及び連結体を結合固定して保持器を形成するので、基体及び連結体の材料の変更や形状の変更がしやすいため、超大型のスラスト球面ころ軸受用保持器であっても、所要の強度及び剛性を容易に確保して十分な負荷容量を持たせることができる。
その上、基体及び連結体が、それぞれ鋼板をレーザ切断等により切断加工したブランクを基にして別体で製造されることから、多工程のプレス加工をする必要がないため、金型費用及び製造コストを削減できる。
その上さらに、柱部の先端部に設けられた、周方向の前後面から突出する第１突出片の小径リング部側に、周方向の前後面から突出する第２突出片が設けられているので、軸方向の負荷（スラスト負荷）が保持器に作用した際に、第２突出片が負荷を受けることから、基体及び連結体の結合固定部に対して負荷が直接作用しないため、基体及び連結体の結合固定部の信頼性をより向上できる。
その上、第２突出片の長さは第１突出片よりも短く、第２突出片は第１突出片よりも小径リング部側に位置しているので、球面ころをポケット孔に収容して内輪を装着した状態でも、第２突出片の横の第１突出片の下方位置に空間ができることから、第１突出片の下面を受け具により支持できるため、基体の四角柱状凸部を連結体の四角孔に挿入した状態で、受け具により加締め機の推力を受け止めながら、揺動加締め加工等の加締め加工を行うことができる。よって、加締め機の推力が基体の柱部に直接作用する構成のように、柱部が座屈変形しないように推力を抑える必要がなく、加締め機の推力を大きくできることから加工時間が短くなるため、生産性を向上できる。 According to such a configuration, the base body and the coupling body, which are separate members, are joined and fixed to form the cage, so that it is easy to change the material and shape of the base body and the coupling body. Even with a roller bearing cage, the required strength and rigidity can be easily ensured to provide sufficient load capacity.
In addition, since the base and the connected body are manufactured separately based on a blank obtained by cutting a steel plate by laser cutting or the like, there is no need to perform multi-step pressing, so the die cost and manufacturing Cost can be reduced.
Furthermore, the 2nd protrusion piece which protrudes from the front-back surface of the circumferential direction is provided in the small diameter ring part side of the 1st protrusion piece provided in the front-end | tip part of the pillar part, and protrudes from the front-back surface of the circumferential direction. Therefore, when the axial load (thrust load) acts on the cage, the second projecting piece receives the load, so the load does not act directly on the base and the coupling fixing portion of the connector. The reliability of the coupling fixing part of the coupled body can be further improved.
In addition, the length of the second projecting piece is shorter than that of the first projecting piece, and the second projecting piece is located closer to the smaller diameter ring portion than the first projecting piece. Even when the inner ring is mounted, a space is formed below the first projecting piece next to the second projecting piece, so that the lower surface of the first projecting piece can be supported by the support. In the state of being inserted into the square hole, the swaging caulking process or the like can be performed while receiving the thrust of the caulking machine by the support. Therefore, unlike the configuration in which the thrust of the caulking machine acts directly on the column portion of the base body, it is not necessary to suppress the thrust so that the column portion does not buckle and deform, and the thrust of the caulking machine can be increased, thereby shortening the machining time. Therefore, productivity can be improved.

ここで、前記柱部の１個に対して前記四角柱状凸部を周方向に離間して２個形成してなると好ましい（請求項２）。
このような構成によれば、柱部の先端部に、周方向に離間した２個の四角柱状凸部が設けられているので、基体の四角柱状凸部を連結体の四角孔に挿入した状態で、１個の柱部ごとに揺動加締め加工を行う際に、１個の柱部の先端の周方向に離間した２個の四角柱状凸部が連結体の四角孔に挿入されているため、柱部のねじれ変形を抑制できる。 Here, it is preferable that two of the quadrangular columnar convex portions are formed apart from each other in the circumferential direction with respect to one of the column portions.
According to such a configuration, since the two rectangular columnar convex portions spaced apart in the circumferential direction are provided at the distal end portion of the column portion, the state where the quadrangular columnar convex portions of the base body are inserted into the square holes of the coupling body Thus, when the rocking caulking process is performed for each column portion, two square columnar convex portions spaced apart in the circumferential direction at the tip end of one column portion are inserted into the square holes of the connecting body. Therefore, the torsional deformation of the column part can be suppressed.

また、前記連結体が平面状のものであり、前記第１突出片と前記第２突出片との間を折り曲げて、前記四角柱状凸部を前記連結体に直交させてなると好ましい（請求項３）。
このような構成によれば、連結体が平面状のものであるので、鋼板をリング状に切断するとともに四角孔を形成することにより連結体が完成するため、連結体の製造コストを低減できる。
その上、連結体が平面状であるので、連結体の形状精度を容易に向上できるため、この連結体を基体と結合固定してなる保持器の外径真円度や球面ころの出入り等の規格の精度の向上が図れる。
その上さらに、第１突出片と第２突出片との間を折り曲げて、四角柱状凸部を連結体に直交させているので、第１突出片の下面が略水平になるため、揺動加締め加工等の加締め加工を行う際に水平の受け具により第１突出片の下面を安定して支持できるとともに、受け具の構成が簡素になる。
その上、揺動加締め加工等の加締め加工を行う際に、基体の第２突出片及び柱部の外面（背面）を受け具により支持できるので、この受け具と第１突出片の下面を支持する受け具の両方により加締め機の推力を受け止めることができる。 In addition, it is preferable that the connecting body is planar, and is bent between the first projecting piece and the second projecting piece so that the quadrangular columnar convex portion is orthogonal to the connecting body. ).
According to such a configuration, since the connecting body is planar, the connecting body is completed by cutting the steel plate into a ring shape and forming the square holes, so that the manufacturing cost of the connecting body can be reduced.
In addition, since the connecting body has a flat shape, the shape accuracy of the connecting body can be easily improved, so that the outer diameter roundness of a cage formed by coupling and fixing the connecting body to the base, the entrance and exit of spherical rollers, etc. The accuracy of the standard can be improved.
In addition, since the quadrangular columnar convex portion is orthogonal to the connecting body by bending between the first projecting piece and the second projecting piece, the bottom surface of the first projecting piece becomes substantially horizontal, so When performing a caulking process such as a tightening process, the lower surface of the first protruding piece can be stably supported by a horizontal receiver, and the structure of the receiver is simplified.
In addition, when performing the caulking process such as the swing caulking process, the second projecting piece of the base and the outer surface (back surface) of the column part can be supported by the receiving tool. The thrust of the crimping machine can be received by both of the supporters that support the screw.

さらに、前記柱部の先端部に形成された前後の第１突出片間に径方向に貫通する通孔を形成してなると好ましい（請求項４）。
このような構成によれば、第１突出片間の径方向に貫通する通孔に受け具を挿入して基体を支持できるので、揺動加締め加工等の加締め加工を行う際に、この受け具により加締め機の推力を受け止めることができる。 Furthermore, it is preferable that a through-hole penetrating in the radial direction is formed between the front and rear first projecting pieces formed at the front end portion of the column portion (claim 4).
According to such a configuration, the receiving member can be inserted into the through hole penetrating in the radial direction between the first protruding pieces to support the base body. Therefore, when performing caulking such as swing caulking, The thrust of the caulking machine can be received by the support.

さらにまた、前記四角柱状凸部の先端を前記連結体の表面から突出させ、前記四角柱状凸部の先端を揺動加締め加工により塑性変形させて拡径することにより前記基体及び連結体が結合固定され、前記連結体の表面から突出して軸方向視で略矩形状に視認される、前記柱部の１個に対して２個の加締め部を備えてなると好ましい（請求項５）。
このような構成によれば、基体及び連結体の結合固定が揺動加締め加工により行われるので、垂直軸方向の衝撃荷重が柱部に作用しないことから、柱部の反りや変形等を抑制できるため、鋼板を切断加工したブランクを基にして製造される超大型保持器の精度の確保が容易になるとともに、基体及び連結体の結合固定を溶接接合により行う場合のような高熱の影響による保持器の精度の悪化もない。
その上、基体及び連結体の結合固定が揺動加締め加工により行われるので、基体及び連結体の結合固定を溶接接合により行う場合のような溶接部の経年劣化の恐れがないため、基体及び連結体の結合固定部の信頼性を長期にわたって確保できる。 Furthermore, the tip of the quadrangular columnar convex portion protrudes from the surface of the coupling body, and the tip of the quadrangular columnar convex portion is plastically deformed by swing caulking to expand the diameter, thereby coupling the base body and the coupling body. It is preferable that two caulking portions are provided for one of the column portions that are fixed and protrude from the surface of the coupling body and are visually recognized in a substantially rectangular shape when viewed in the axial direction.
According to such a configuration, since the base body and the coupling body are coupled and fixed by swing caulking, the impact load in the vertical axis direction does not act on the column portion, thereby suppressing the warpage or deformation of the column portion. Therefore, it is easy to ensure the accuracy of a super-large cage manufactured based on a blank obtained by cutting a steel plate, and also due to the influence of high heat, such as when joining and fixing the base body and the connected body by welding. There is no deterioration in the accuracy of the cage.
In addition, since the base and the coupling body are fixed by swing caulking, there is no risk of aging deterioration of the welded portion as in the case where the base and the coupling body are fixed by welding. The reliability of the coupling fixing part of the coupled body can be ensured for a long period of time.

本発明に係るスラスト球面ころ軸受用保持器の製造方法は、前記課題解決のために、軸方向に離間した小径リング部及び大径リング部を球面ころの外周面に摺接する複数の柱部により繋いだ形状を成し、前記球面ころを収容保持するための複数のポケット孔が周方向等分に形成され、前記球面ころを前記ポケット孔に収容してスラスト球面ころ軸受の内輪を装着した状態で、前記内輪の外周面に形成された係止段部に前記大径リング部が係止され、前記球面ころ及び前記内輪と一体化された状態が保持されるスラスト球面ころ軸受用保持器の製造方法であって、前記小径リング部及び前記柱部からなり、前記柱部の先端に四角柱状凸部が設けられるとともに、前記柱部の前記四角柱状凸部の基端側に周方向の前後面から突出する第１突出片、及び前記第１突出片の前記小径リング部側に位置して周方向の前後面から突出する、前記第１突出片よりも短い第２突出片が設けられた基体と、前記大径リング部からなる、前記四角柱状凸部が挿入される四角孔が設けられた連結体とを別部材とし、これらがそれぞれ鋼板を切断加工したブランクを基にして製造され、前記球面ころを前記基体のポケット孔に収容して前記内輪を装着し、前記基体の四角柱状凸部を前記連結体の四角孔に挿入して前記四角柱状凸部の先端を前記連結体の表面から突出させた状態で、前記第１突出片の下面及び前記第２突出片の外面の少なくともどちらかを受け具により支持して、加締め機の推力を前記受け具により受け止めながら、前記四角柱状凸部の先端を揺動加締め加工により塑性変形させて拡径することにより前記基体及び前記連結体が結合固定されることを特徴とする（請求項６）。   In order to solve the above problems, a method for manufacturing a thrust spherical roller bearing retainer according to the present invention includes a small-diameter ring portion and a large-diameter ring portion that are spaced apart in the axial direction and a plurality of column portions that are in sliding contact with the outer peripheral surface of the spherical roller. A state in which a plurality of pocket holes for accommodating and holding the spherical rollers are formed equally in the circumferential direction, the spherical rollers are received in the pocket holes and the inner ring of a thrust spherical roller bearing is mounted. A thrust spherical roller bearing retainer in which the large-diameter ring portion is locked to a locking step portion formed on an outer peripheral surface of the inner ring, and the state integrated with the spherical roller and the inner ring is held. A manufacturing method, comprising the small-diameter ring portion and the column portion, and provided with a quadrangular columnar convex portion at a tip end of the column portion, and a front and rear in a circumferential direction on a proximal end side of the quadrangular columnar convex portion of the column portion A first protruding piece protruding from the surface; And a base provided with a second projecting piece shorter than the first projecting piece, located on the small-diameter ring part side of the first projecting piece and projecting from the front and rear surfaces in the circumferential direction, and the large-diameter ring part The connecting body provided with a square hole into which the quadrangular columnar convex portion is inserted is a separate member, each of which is manufactured based on a blank obtained by cutting a steel plate, and the spherical roller is formed as a pocket hole in the base body. In the state where the inner ring is mounted, the quadrangular columnar convex portion of the base body is inserted into the square hole of the coupling body, and the tip of the rectangular columnar convex portion projects from the surface of the coupling body. At least one of the lower surface of the first protruding piece and the outer surface of the second protruding piece is supported by a receiving tool, and the tip of the square columnar convex portion is swung and swung while receiving the thrust of the crimping machine by the receiving tool. Expand the diameter by plastic deformation by processing. The base and the coupling body, characterized in that it is coupled and fixed by (claim 6).

このような製造方法によれば、別部材である基体及び連結体を結合固定して保持器を形成するので、基体及び連結体の材料の変更や形状の変更がしやすいため、超大型のスラスト球面ころ軸受用保持器であっても、所要の強度及び剛性を容易に確保して十分な負荷容量を持たせることができる。
その上、基体及び連結体が、それぞれ鋼板をレーザ切断等により切断加工したブランクを基にして別体で製造されることから、多工程のプレス加工をする必要がないため、金型費用及び製造コストを削減できる。
その上さらに、基体及び連結体を揺動加締め加工により結合固定するので、基体及び連結体の結合固定を溶接接合により行う場合のようにスパッタが発生しない。よって、基体のポケット孔に球面ころを組み込む工程を行い、その後、基体に組み込まれた球面ころをスラスト球面ころ軸受の内輪に組み付ける工程を行い、球面ころ及び内輪を基体にセットした状態で結合固定工程を行って基体及び連結体を結合固定しても、スパッタが球面ころや内輪に付着することがないため、軸受の寿命に悪影響を与えることがない。 According to such a manufacturing method, the base body and the coupling body, which are separate members, are joined and fixed to form the cage. Therefore, it is easy to change the material and shape of the base body and the coupling body. Even with a spherical roller bearing retainer, the required strength and rigidity can be easily secured and sufficient load capacity can be provided.
In addition, since the base and the connected body are manufactured separately based on a blank obtained by cutting a steel plate by laser cutting or the like, there is no need to perform multi-step pressing, so the die cost and manufacturing Cost can be reduced.
Furthermore, since the base body and the coupling body are coupled and fixed by swing caulking, spatter does not occur as in the case where the base body and the coupling body are coupled and fixed by welding. Therefore, the step of assembling the spherical roller into the pocket hole of the base is performed, and then the step of assembling the spherical roller incorporated in the base into the inner ring of the thrust spherical roller bearing is performed, and the spherical roller and the inner ring are set and fixed to the base. Even if the substrate and the coupling body are bonded and fixed by performing the process, the spatter does not adhere to the spherical roller and the inner ring, so that the bearing life is not adversely affected.

その上、基体及び連結体の結合固定が揺動加締め加工により行われるので、垂直軸方向の衝撃荷重が柱部に作用しないことから、柱部の反りや変形等を抑制できるため、鋼板を切断加工したブランクを基にして製造される超大型保持器の精度の確保が容易になるとともに、基体及び連結体の結合固定を溶接接合により行う場合のような高熱の影響による保持器の精度の悪化もない。
その上さらに、基体及び連結体の結合固定が揺動加締め加工により行われるので、基体及び連結体の結合固定を溶接接合により行う場合のような溶接部の経年劣化の恐れがないため、基体及び連結体の結合固定部の信頼性を長期にわたって確保できる。
その上、第２突出片の長さは第１突出片よりも短く、第２突出片は第１突出片よりも小径リング部側に位置しているので、球面ころをポケット孔に収容して内輪を装着した状態でも、第２突出片の横の第１突出片の下方位置に空間ができることから、第１突出片の下面を受け具により支持できるため、基体の四角柱状凸部を連結体の四角孔に挿入した状態で、加締め機の推力を受け具により受け止めながら、揺動加締め加工により四角柱状凸部を塑性変形させて拡径して基体及び連結体を結合固定できる。よって、加締め機の推力が基体の柱部に直接作用する構成のように、柱部が座屈変形しないように推力を抑える必要がなく、加締め機の推力を大きくできることから加工時間が短くなるため、生産性を向上できる。 In addition, since the coupling and fixing of the base body and the coupling body are performed by swing caulking, since the impact load in the vertical axis direction does not act on the column part, it is possible to suppress warping or deformation of the column part. It is easy to ensure the accuracy of a super-large cage manufactured based on a cut blank, and the accuracy of the cage due to the influence of high heat as in the case where the base and connecting body are fixed by welding. There is no deterioration.
In addition, since the base and the coupling body are fixed by swing caulking, there is no risk of aging deterioration of the welded portion as in the case where the base and the coupling body are fixed by welding. And the reliability of the coupling fixing part of a coupling body can be ensured over a long period of time.
In addition, the length of the second projecting piece is shorter than that of the first projecting piece, and the second projecting piece is located closer to the smaller diameter ring portion than the first projecting piece. Even when the inner ring is mounted, a space is formed below the first projecting piece next to the second projecting piece, so that the lower surface of the first projecting piece can be supported by the support. In the state of being inserted into the square hole, the base column and the connecting body can be coupled and fixed by plastically deforming and expanding the diameter of the quadrangular columnar convex portion by swing caulking while receiving the thrust of the caulking machine with the receiving tool. Therefore, unlike the configuration in which the thrust of the caulking machine acts directly on the column portion of the base body, it is not necessary to suppress the thrust so that the column portion does not buckle and deform, and the thrust of the caulking machine can be increased, thereby shortening the machining time. Therefore, productivity can be improved.

ここで、前記柱部の１個に対して前記四角柱状凸部を周方向に離間して２個形成してなると好ましい（請求項７）。
このような製造方法によれば、柱部の先端部に、周方向に離間した２個の四角柱状凸部が設けられているので、基体の四角柱状凸部を連結体の四角孔に挿入した状態で、１個の柱部ごとに揺動加締め加工を行う際に、１個の柱部の先端の周方向に離間した２個の四角柱状凸部が連結体の四角孔に挿入されているため、柱部のねじれ変形を抑制できる。 Here, it is preferable to form two square columnar convex portions spaced apart in the circumferential direction with respect to one of the column portions.
According to such a manufacturing method, since the two quadrangular columnar convex portions spaced apart in the circumferential direction are provided at the distal end portion of the column portion, the quadrangular columnar convex portions of the base body are inserted into the square holes of the coupling body. In this state, when performing the rocking caulking process for each column portion, two rectangular columnar convex portions spaced apart in the circumferential direction at the tip end of one column portion are inserted into the square holes of the coupling body. Therefore, the torsional deformation of the column part can be suppressed.

また、前記第１突出片間に径方向に貫通する通孔を形成し、前記球面ころを前記基体のポケット孔に収容して前記内輪を装着し、前記基体の四角柱状凸部を前記連結体の四角孔に挿入して前記四角柱状凸部の先端を前記連結体の表面から突出させた状態で、前記通孔に受け具を挿入して前記基体を支持し、加締め機の推力を前記受け具により受け止めながら前記揺動加締め加工を行うと好ましい（請求項８）。
このような製造方法によれば、第１突出片間の径方向に貫通する通孔に受け具を挿入して基体を支持できるので、揺動加締め加工を行う際に、この受け具により加締め機の推力を受け止めることができる。 Further, a through-hole penetrating in the radial direction is formed between the first projecting pieces, the spherical roller is received in the pocket hole of the base body, the inner ring is mounted, and the quadrangular columnar convex portion of the base body is connected to the connecting body. In the state where the tip of the quadrangular prism-shaped convex portion is protruded from the surface of the connecting body by inserting into the square hole, the receiving member is inserted into the through hole to support the base, and the thrust of the caulking machine is The swing caulking process is preferably performed while being received by a receiving tool (claim 8).
According to such a manufacturing method, since the supporter can be supported by inserting the supporter into the through-hole penetrating in the radial direction between the first projecting pieces, the supporter is added by the supporter when performing the swing caulking process. The thrust of the fastening machine can be received.

以上のように、本発明に係るスラスト球面ころ軸受用保持器及びその製造方法によれば、基体のポケット孔に球面ころを収容して内輪を装着した状態で、内輪の外周面に形成された係止段部に連結体が係止されて球面ころ及び内輪と一体化される、超大型のスラスト球面ころ軸受用保持器において、
（Ａ）別部材である基体及び連結体を結合固定して保持器を形成するので、基体及び連結体の材料の変更や形状の変更がしやすいため、所要の強度及び剛性を容易に確保して十分な負荷容量を持たせることができること、
（Ｂ）基体及び連結体が、それぞれ鋼板をレーザ切断等により切断加工したブランクを基にして別体で製造されることから、多工程のプレス加工をする必要がないため、金型費用及び製造コストを削減できること、
（Ｃ）柱部の先端部に周方向の前後面から突出する第２突出片が設けられているので、軸方向の負荷（スラスト負荷）が保持器に作用した際に、第２突出片が負荷を受けることから、基体及び連結体の結合固定部の信頼性をより向上できること、
（Ｄ）第２突出片の長さは第１突出片よりも短く、第２突出片は第１突出片よりも小径リング部側に位置しているので、球面ころをポケット孔に収容して内輪を装着した状態でも、第２突出片の横の第１突出片の下方位置に空間ができることから、第１突出片の下面を受け具により支持して加締め機の推力を受け止めながら揺動加締め加工等の加締め加工により基体及び連結体を結合固定でき、よって、加締め機の推力を大きくできることから加工時間が短くなるため、生産性を向上できること、
（Ｅ）基体及び連結体を揺動加締め加工等の加締め加工により結合固定することにより、基体に組み込まれた球面ころをスラスト球面ころ軸受の内輪に組み付ける工程を行い、球面ころ及び内輪を基体にセットした状態で基体及び連結体を結合固定しても、溶接接合による場合のようにスパッタが球面ころや内輪に付着することがないため、軸受の寿命に悪影響を与えることがないこと、
（Ｆ）基体及び連結体の結合固定が揺動加締め加工により行う場合、垂直軸方向の衝撃荷重が柱部に作用しないことから、柱部の反りや変形等を抑制できるため、鋼板を切断加工したブランクを基にして製造される超大型保持器の精度の確保が容易になるとともに、基体及び連結体の結合固定を溶接接合により行う場合のような高熱の影響による保持器の精度の悪化もないとともに、基体及び連結体の結合固定を溶接接合により行う場合のような溶接部の経年劣化の恐れがないため、基体及び連結体の結合固定部の信頼性を長期にわたって確保できること、
（Ｇ）柱部の１個に対して四角柱状凸部を周方向に離間して２個形成したものでは、基体の四角柱状凸部を連結体の四角孔に挿入した状態で、１個の柱部ごとに揺動加締め加工を行う際に、１個の柱部の先端の周方向に離間した２個の四角柱状凸部が連結体の四角孔に挿入されているため、柱部のねじれ変形を抑制できること、
等の顕著な効果を奏する。 As described above, according to the thrust spherical roller bearing retainer and the manufacturing method thereof according to the present invention, the spherical roller is accommodated in the pocket hole of the base and formed on the outer peripheral surface of the inner ring with the inner ring mounted. In a super large thrust spherical roller bearing retainer in which a coupling body is locked to a locking step and integrated with a spherical roller and an inner ring.
(A) Since the retainer is formed by connecting and fixing the base body and the connecting body, which are separate members, it is easy to change the material and shape of the base body and the connecting body, so that the required strength and rigidity can be easily secured. To have sufficient load capacity,
(B) Since the base body and the connected body are manufactured separately based on a blank obtained by cutting a steel plate by laser cutting or the like, there is no need to perform multi-step pressing, so the die cost and manufacturing Reduce costs,
(C) Since the 2nd protrusion piece which protrudes from the front-and-back surface of the circumferential direction is provided in the front-end | tip part of a pillar part, when an axial load (thrust load) acts on a holder | retainer, a 2nd protrusion piece is Since it receives a load, the reliability of the coupling and fixing part of the base body and the coupling body can be further improved,
(D) The length of the second projecting piece is shorter than that of the first projecting piece, and the second projecting piece is located closer to the smaller diameter ring portion than the first projecting piece. Even when the inner ring is mounted, a space is created below the first projecting piece next to the second projecting piece, so that the lower surface of the first projecting piece is supported by the support and swings while receiving the thrust of the crimping machine. The base body and the coupling body can be coupled and fixed by a caulking process such as caulking process, and thus the thrust of the caulking machine can be increased, so the processing time is shortened, so that productivity can be improved,
(E) A step of assembling the spherical roller incorporated in the base body to the inner ring of the thrust spherical roller bearing by coupling and fixing the base body and the connecting body by a caulking process such as swing caulking process. Even if the base body and the coupling body are coupled and fixed in a state where they are set on the base body, the spatter does not adhere to the spherical rollers and the inner ring as in the case of welding joining, so that the bearing life is not adversely affected.
(F) When the base body and the coupling body are fixed by swing caulking, the impact load in the vertical axis direction does not act on the column portion, so the warpage or deformation of the column portion can be suppressed, so the steel plate is cut. Ensuring the accuracy of an ultra-large cage manufactured based on a processed blank becomes easy, and the accuracy of the cage deteriorates due to the influence of high heat, such as when joining and fixing the base and connecting body by welding. In addition, since there is no risk of aging deterioration of the welded part as in the case where the base and the coupling body are fixed by welding, the reliability of the base and the coupling body can be secured over a long period of time.
(G) In the case where two quadrangular columnar convex portions are formed apart from each other in the circumferential direction with respect to one of the column portions, one rectangular columnar convex portion of the base is inserted into the square hole of the connector. When performing the rocking caulking process for each column part, since the two rectangular columnar convex parts spaced apart in the circumferential direction at the tip of one column part are inserted into the square holes of the connecting body, The ability to suppress twisting deformation,
There are remarkable effects such as.

本発明の実施の形態に係るスラスト球面ころ軸受用保持器とスラスト球面ころ軸受の球面ころ及び内輪を組み付けた状態を示す斜視図である。It is a perspective view which shows the state which assembled | attached the spherical roller of the thrust spherical roller bearing which concerns on embodiment of this invention, and the spherical roller and inner ring of a thrust spherical roller bearing. 同じく縦断正面図である。It is a longitudinal front view similarly. 基体ブランク切断工程により加工された基体のブランクを示す斜視図である。It is a perspective view which shows the blank of the base | substrate processed by the base | substrate blank cutting process. 折曲げ工程により加工された状態を示す斜視図である。It is a perspective view which shows the state processed by the bending process. 内径除去工程により加工された状態を示す斜視図である。It is a perspective view which shows the state processed by the internal diameter removal process. 内径除去工程により加工された状態の基体と、連結体ブランク切断工程により加工された状態の連結体を示す分解斜視図である。It is a disassembled perspective view which shows the base body of the state processed by the internal diameter removal process, and the coupling body of the state processed by the coupling body blank cutting process. 連結体取付け工程により基体の四角柱状凸部を連結体の四角孔に挿入して基体に連結体を取り付けた状態を示す斜視図である。It is a perspective view which shows the state which inserted the square columnar convex part of the base | substrate into the square hole of the connection body by the connection body attachment process, and attached the connection body to the base | substrate. 面押し工程により柱部及び舌片に傾斜面を形成した状態を示す斜視図である。It is a perspective view which shows the state which formed the inclined surface in the pillar part and the tongue piece by the surface pressing process. 連結体取外し工程により基体から連結体を取り外した状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which removed the connection body from the base | substrate by the connection body removal process. ころ・内輪・連結体取付け工程により、基体のポケット孔に球面ころを収容し、球面ころがスラスト球面ころ軸受の内輪の軌道面に当接するように内輪を装着した後、基体の四角柱状凸部を連結体の四角孔に挿入するように連結体を取り付ける手順を示す分解斜視図である。After the roller, inner ring, and connecting body mounting process, the spherical roller is accommodated in the pocket hole of the base, and the inner ring is mounted so that the spherical roller contacts the raceway surface of the inner surface of the thrust spherical roller bearing. It is a disassembled perspective view which shows the procedure which attaches a coupling body so that may be inserted in the square hole of a coupling body. ころ・内輪・連結体取付け工程により、基体に球面ころを取り付け、内輪を装着し、さらに連結体を取り付けた状態を示す斜視図である。It is a perspective view which shows the state which attached the spherical ring to the base | substrate by mounting | wearing the base | substrate by the roller, inner ring | wheel, and coupling body attachment process, and also attached the coupling body. 揺動加締め加工による結合固定工程を行う際に加締め機の推力を受ける受け具を示す要部拡大斜視図であり、（ａ）は基体に受け具を装着する前の状態を、（ｂ）は基体に受け具を装着した状態を示している。It is a principal part expansion perspective view which shows the receiver which receives the thrust of a crimping machine when performing the coupling | bonding fixing process by rocking caulking, (a) is a state before mounting a receiver to a base | substrate (b) ) Shows a state in which a receiver is mounted on the base. 揺動加締め加工による結合固定工程を示す要部拡大部分縦断面正面図であり、（ａ）は加工を開始した状態を、（ｂ）は加工が完了した状態を示している。It is a principal part expansion partial longitudinal cross-sectional front view which shows the joint fixing process by rocking caulking process, (a) has shown the state which started processing, (b) has shown the state which processing was completed.

次に本発明の実施の形態を添付図面に基づき詳細に説明するが、本発明は、添付図面に示された形態に限定されず特許請求の範囲に記載の要件を満たす実施形態の全てを含むものである。
以下において、スラスト球面ころ軸受用保持器をスラスト球面ころ軸受に装着した際における軸受の軸方向を軸方向、径方向を径方向とし、本発明の実施の形態に係るスラスト球面ころ軸受用保持器において、小径リング部を下側にして軸方向を鉛直にした状態で側方から見た図を正面図とする。
なお、図１、図２及び図１１において、実際には保持器の全てのポケット孔に球面ころが装着されているが、説明の都合上ポケット孔の一部にのみ球面ころを装着している。また、図１２及び図１３に示す揺動加締め加工（結合固定工程）を行う際には、実際には保持器の全てのポケット孔に球面ころが装着されているが、説明の都合上球面ころを省略している。 Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste.
In the following description, the axial direction of the bearing when the thrust spherical roller bearing retainer is mounted on the thrust spherical roller bearing is the axial direction, and the radial direction is the radial direction, and the thrust spherical roller bearing retainer according to the embodiment of the present invention 1 is a front view when viewed from the side in a state where the small-diameter ring portion is on the lower side and the axial direction is vertical.
In FIG. 1, FIG. 2 and FIG. 11, spherical rollers are actually mounted in all pocket holes of the cage, but spherical rollers are mounted only in a part of the pocket holes for convenience of explanation. . In addition, when the swing caulking process (bonding and fixing process) shown in FIGS. 12 and 13 is performed, spherical rollers are actually installed in all pocket holes of the cage. The roller is omitted.

図１の斜視図及び図２の縦断正面図に示すように、本発明の実施の形態に係るスラスト球面ころ軸受用保持器１は、軸方向に離間した小径リング部４及び大径リング部６を球面ころＲの外周面に摺接する複数の柱部５，５，…により繋いだ形状を成し、球面ころＲ，Ｒ，…を収容保持するための複数のポケット孔Ｐ，Ｐ，…が周方向等分に形成され、球面ころＲ，Ｒ，…をポケット孔Ｐ，Ｐ，…に収容してスラスト球面ころ軸受の内輪１０を装着した状態で、内輪１０の外周面に形成された係止段部１０Ａに大径リング部６が係止され、球面ころＲ，Ｒ，…及び内輪１０と一体化された状態（ばらけが防止された状態）が保持される。
また、スラスト球面ころ軸受用保持器１は、小径リング部４及び柱部５．５，…からなり、柱部５，５，…の先端に四角柱状凸部５Ａ，５Ａ，…（例えば、図５参照）が設けられるとともに、柱部５の四角柱状凸部５Ａの基端側に周方向の前後面から突出する第１突出片１１，１１、及び第１突出片１１，１１の小径リング部４側に位置して周方向の前後面から突出する、第１突出片１１，１１よりも短い第２突出片１２，１２が設けられた基体２と、大径リング部６からなる、四角柱状凸部５Ａ，５Ａ，…が挿入される四角孔６Ａ，６Ａ，…（例えば、図６参照）が設けられた連結体３とにより構成され、基体２及び連結体３は、熱間圧延鋼板（例：ＳＰＨＤ）等の鋼板を切断加工したブランク２Ａ，３Ａ（図３及び図６参照。）を基にして、後述する工程を経て製造される。 As shown in the perspective view of FIG. 1 and the longitudinal front view of FIG. 2, the thrust spherical roller bearing retainer 1 according to the embodiment of the present invention includes a small-diameter ring portion 4 and a large-diameter ring portion 6 that are separated in the axial direction. Are connected by a plurality of column portions 5, 5,... That are in sliding contact with the outer peripheral surface of the spherical roller R, and a plurality of pocket holes P, P,... For receiving and holding the spherical rollers R, R,. .. Are formed on the outer circumferential surface of the inner ring 10 with the spherical rollers R, R,... Accommodated in the pocket holes P, P,. The large-diameter ring portion 6 is locked to the stepped portion 10A, and the state integrated with the spherical rollers R, R,...
The thrust spherical roller bearing retainer 1 includes a small diameter ring portion 4 and column portions 5.5,..., And square columnar convex portions 5A, 5A,. 5) and the first projecting pieces 11, 11 projecting from the front and rear surfaces in the circumferential direction on the base end side of the quadrangular columnar convex portion 5A of the column section 5, and the small-diameter ring section of the first projecting sections 11, 11 A quadrangular prism-like shape comprising a base body 2 provided with second projecting pieces 12, 12 shorter than the first projecting pieces 11, 11 and a large-diameter ring portion 6, located on the side 4 and projecting from the front and rear surfaces in the circumferential direction. Is formed by a connecting body 3 provided with square holes 6A, 6A,... (For example, see FIG. 6) into which convex portions 5A, 5A,. Example: Based on blanks 2A and 3A (see FIGS. 3 and 6) obtained by cutting a steel plate such as SPHD). It is produced through the process described below.

次に、本発明の実施の形態に係るスラスト球面ころ軸受用保持器１の製造方法の詳細について説明する。
先ず、基体２の加工について説明する。
（基体ブランク切断工程）
図３の斜視図に示すように、回転中心ガイド孔Ａを有する円板状部材Ｂの外周部Ｃから柱部５，５，…となる部分Ｄ，Ｄ，…を放射状に突出させ、柱部５，５，…となる部分Ｄ，Ｄ，…の各々の先端部に、第１突出片１１，１１及び第２突出片１２，１２、第１突出片１１，１１間の通孔Ｈ、並びに、周方向に離間した２個の四角柱状凸部５Ａ，５Ａを形成し、隣り合う柱部となる部分Ｄ，Ｄ同士の間に、それぞれ径方向へ突出する舌片７を形成するとともに、折り曲げ工程における位置決め固定用ピン孔Ｅ，Ｅ，…、吊りボルト用孔Ｆ，Ｆ、及び軽量化のための抜き孔Ｇ，Ｇ，…を形成するように、板厚ｔ１の鋼板をレーザ切断により切断して基体のブランク２Ａを得る基体ブランク切断工程を行う。
なお、このような切断加工は、レーザ切断に限定されるものではなく、プラズマ切断又はワイヤーカット放電加工等を用いてもよい。 Next, the detail of the manufacturing method of the retainer 1 for thrust spherical roller bearings which concerns on embodiment of this invention is demonstrated.
First, processing of the substrate 2 will be described.
(Substrate blank cutting process)
As shown in the perspective view of FIG. 3, the portions D, D,... That become the pillar portions 5, 5,... Are radially projected from the outer peripheral portion C of the disk-like member B having the rotation center guide hole A, .., 5, 5,... At the leading ends of the portions D, D,..., The first projecting pieces 11, 11 and the second projecting pieces 12, 12, The two rectangular columnar convex portions 5A and 5A that are spaced apart in the circumferential direction are formed, and the tongue pieces 7 that project in the radial direction are formed between the portions D and D that are adjacent column portions, and are bent. .. Are cut by laser cutting so as to form positioning fixing pin holes E, E,..., Suspension bolt holes F, F, and punch holes G, G,. Then, a substrate blank cutting step for obtaining a substrate blank 2A is performed.
Such a cutting process is not limited to laser cutting, and plasma cutting, wire cut electric discharge machining, or the like may be used.

（折曲げ工程）
次に、基体のブランク２Ａに対し、位置決め固定用ピン孔Ｅ，Ｅ，…を利用して位置決め固定をした状態で、絞り金型（曲げ金型）を使用して、図４の斜視図に示すように柱部となる部分Ｄ，Ｄ，…を、円板状部材Ｂの外周部Ｃに沿って折り曲げる折曲げ工程を行う。
折曲げ工程を行った状態で、隣り合う柱部５，５の一方から他方で向かって突出する一対の第１突出片１１，１１間には、隙間Ｓが形成される。
また、折曲げ工程により、第１突出片１１，１１と第２突出片１２，１２との間も折り曲げられ、四角柱状凸部５Ａ，５Ａ，…は直立する。
このような構成によれば、第１突出片１１，１１と第２突出片１２，１２との間を折り曲げて、四角柱状凸部５Ａ，５Ａ，…を直立させ、連結体３に直交させているので、第１突出片１１，１１，…の下面が略水平になるため、後述する揺動加締め加工等の加締め加工を行う際に水平の受け具１６Ａ，１６Ａ，…（図１２参照）により第１突出片１１，１１，…の下面を安定して支持できるとともに、受け具１６Ａ，１６Ａの構成が簡素になる。
ここで、円板状部材Ｂの中心部に、保持器内径よりも直径が小さい回転中心ガイド孔Ａが形成されていることから、プレス加工におけるガイド孔としての機能を持たせることができるとともに、比較的大きい余肉部分があるので、折曲げ加工時における小径側の剛性確保が容易になる。 (Bending process)
Next, a drawing die (bending die) is used in the perspective view of FIG. 4 in a state where the fixing is performed using the positioning fixing pin holes E, E,. As shown in the drawing, a bending process is performed in which the portions D, D,... That become the pillar portions are bent along the outer peripheral portion C of the disk-shaped member B.
A gap S is formed between the pair of first projecting pieces 11 and 11 projecting from one of the adjacent column parts 5 and 5 to the other in the state where the bending process is performed.
Further, the first protruding pieces 11 and 11 and the second protruding pieces 12 and 12 are also bent by the bending process, and the quadrangular columnar convex portions 5A, 5A,.
According to such a configuration, the quadrangular columnar convex portions 5A, 5A,... Are made upright by bending between the first projecting pieces 11, 11 and the second projecting pieces 12, 12, so as to be orthogonal to the connector 3. Therefore, since the lower surfaces of the first projecting pieces 11, 11,... Are substantially horizontal, the horizontal receivers 16 A, 16 A,. ) Can stably support the lower surfaces of the first projecting pieces 11, 11,..., And the configuration of the receivers 16 </ b> A and 16 </ b> A is simplified.
Here, since the rotation center guide hole A whose diameter is smaller than the inner diameter of the cage is formed at the center of the disk-shaped member B, it can have a function as a guide hole in press working, Since there is a relatively large surplus portion, it is easy to ensure rigidity on the small diameter side during bending.

（内径除去工程）
次に、旋削加工、レーザ切断加工又はプレス加工等により円板状部材Ｂの内径部の余肉を除去し、図５の斜視図に示すように所定の内径に仕上げる内径除去工程を行う。 (Inner diameter removal process)
Next, an inner diameter removing step is performed in which a surplus portion of the inner diameter portion of the disk-like member B is removed by turning, laser cutting, pressing, or the like, and finished to a predetermined inner diameter as shown in the perspective view of FIG.

次に、連結体３の加工について説明する。
（連結体ブランク切断工程）
図６の分解斜視図（上側の図）に示すように、水平リング状の円環に、基体２の四角柱状凸部５Ａ，５Ａ，…が挿入される四角孔６Ａ，６Ａ，…を周方向等分に形成するように、板厚ｔ２の鋼板をレーザ切断により切断して連結体のブランク３Ａを得る連結体ブランク切断工程を行う。
なお、このような切断加工は、レーザ切断に限定されるものではなく、プラズマ切断又はワイヤーカット放電加工等を用いてもよい。
このような構成によれば、連結体３（連結体のブランク３Ａ）が平面状のものであるので、鋼板をリング状に切断するとともに四角孔６Ａ，６Ａ，…を形成することにより連結体３が完成するため、連結体３の製造コストを低減できる。
また、連結体３が平面状であるので、連結体３の形状精度を容易に向上できるため、この連結体３を基体２と結合固定してなる保持器１の外径真円度や球面ころＲ，Ｒ，…の出入り等の規格の精度の向上が図れる。 Next, processing of the connection body 3 will be described.
(Connected body blank cutting step)
As shown in the exploded perspective view of FIG. 6 (upper drawing), the rectangular holes 6A, 6A,... Into which the rectangular columnar convex portions 5A, 5A,. A joined body blank cutting step is performed in which a steel sheet having a thickness t2 is cut by laser cutting to obtain a joined body blank 3A so as to be formed equally.
Such a cutting process is not limited to laser cutting, and plasma cutting, wire cut electric discharge machining, or the like may be used.
According to such a structure, since the connection body 3 (the blank 3A of the connection body) is planar, the connection body 3 is formed by cutting the steel plate into a ring shape and forming the square holes 6A, 6A,. Is completed, the manufacturing cost of the connector 3 can be reduced.
Further, since the connecting body 3 has a flat shape, the shape accuracy of the connecting body 3 can be easily improved. Therefore, the outer diameter roundness and the spherical roller of the cage 1 formed by connecting and fixing the connecting body 3 to the base 2 are fixed. It is possible to improve the accuracy of standards such as the entry / exit of R, R,.

（連結体取付け工程）
次に、図６の分解斜視図に示すように、基体２の四角柱状凸部５Ａ，５Ａ，…を連結体３の四角孔６Ａ，６Ａ，…に挿入し、図７の斜視図に示すように基体２に連結体３を着脱可能に取り付ける連結体取付け工程を行う。 (Connecting body attachment process)
Next, as shown in the exploded perspective view of FIG. 6, the rectangular columnar convex portions 5A, 5A,... Of the base body 2 are inserted into the square holes 6A, 6A,. Then, a connecting body attaching step for detachably attaching the connecting body 3 to the base body 2 is performed.

（面押し工程）
次に、図８の斜視図に示すように、プレス金型により球面ころＲの側面との接触面を柱部５，５，…に面押し加工して傾斜面９，９，…を形成し、プレス金型により球面ころＲの端面との接触面を舌片７，７，…に面押し加工して傾斜面８，８，…を形成する面押し工程を行う。 (Surface pressing process)
Next, as shown in the perspective view of FIG. 8, inclined surfaces 9, 9,... Are formed by pressing the contact surface with the side surface of the spherical roller R into the column parts 5, 5,. The surface pressing process of forming the inclined surfaces 8, 8,... By pressing the contact surface with the end surface of the spherical roller R into the tongue pieces 7, 7,.

（連結体取外し工程）
次に、図９の分解斜視図に示すように、基体２から連結体３を取り外す連結体取外し工程を行う。 (Connected body removal process)
Next, as shown in the exploded perspective view of FIG. 9, a connecting body removing step for removing the connecting body 3 from the base 2 is performed.

（ころ・内輪・連結体取付け工程）
次に、図１０の分解斜視図に示すように、基体２のポケット孔Ｐ，Ｐ，…の全てに球面ころＲ，Ｒ，…を収容し、球面ころＲ，Ｒ，…がスラスト球面ころ軸受の内輪１０の軌道面に接触するように内輪１０を装着した後、基体２の四角柱状凸部５Ａ，５Ａ，…を連結体３の四角孔６Ａ，６Ａ，…に挿入するように連結体３を取り付ける、ころ・内輪・連結体取付け工程を行って図１１の斜視図に示す状態にする。
この状態では、連結体３の表面から四角柱状凸部５Ａ，５Ａ，…の先端が突出する。 (Roller / inner ring / connector mounting process)
Next, as shown in the exploded perspective view of FIG. 10, the spherical rollers R, R,... Are accommodated in all the pocket holes P, P,. After the inner ring 10 is mounted so as to be in contact with the raceway surface of the inner ring 10, the connecting body 3 is inserted so that the quadrangular columnar convex portions 5A, 5A,... Of the base body 2 are inserted into the square holes 6A, 6A,. The roller / inner ring / connector attachment process is performed to obtain the state shown in the perspective view of FIG.
In this state, the tips of the quadrangular columnar convex portions 5A, 5A,.

（結合固定工程）
次に、四角柱状凸部５Ａ，５Ａ，…の先端を揺動加締め加工により塑性変形させて拡径することにより基体２及び連結体３を結合固定する結合固定工程を行う。
揺動加締め加工を行う際には、図１２（ａ）及び（ｂ）の要部拡大斜視図に示すように、受け具１６Ａ，１６Ａにより第１突出片１１，１１の下面を支持し、受け具１６Ｂを通孔Ｈに挿入して基体２を支持し、受け具１６Ｃにより第２突出片１２，１２、及び柱部５，５の外面（背面）を支持した状態（図１２（ｂ）の状態）にする。
そして、図１３（ａ）の要部拡大部分縦断面正面図に示すように、加締め機１３のヘッド部１４に対して傾けた状態に保持された揺動加締め治具（揺動加締めパンチ）１５の先端、すなわち大きな頂角を持つ円錐形の押圧面が柱部５の四角柱状凸部５Ａの先端（上面）に接するようにし、加締め機１３の油圧シリンダによる下方への推力Ｑを加えながら、モータのトルクＴによりヘッド部１４を回転させる。
このように揺動加締め加工を行う加締め機１３の推力Ｑは、３種類の受け具１６Ａ，１６Ａ、受け具１６Ｂ、及び受け具１６Ｃ（図１２も参照）により受け止められる。
なお、前記３種類の受け具の全てではなく、これらの中の１種又は２種の受け具を用いるようにしてもよい。 (Bonding and fixing process)
Next, a bonding and fixing step is performed in which the base 2 and the coupling body 3 are bonded and fixed by plastically deforming the tips of the quadrangular columnar convex portions 5A, 5A,...
When performing the swing caulking process, as shown in the enlarged perspective view of the main part in FIGS. 12A and 12B, the lower surfaces of the first projecting pieces 11 and 11 are supported by the receivers 16A and 16A. The support 16B is inserted into the through-hole H to support the base 2, and the support 16C supports the second projecting pieces 12 and 12 and the outer surfaces (rear surfaces) of the pillars 5 and 5 (FIG. 12B). ).
Then, as shown in the enlarged front view of the main part of the main part of FIG. 13A, the swing caulking jig (swing caulking) held in an inclined state with respect to the head portion 14 of the caulking machine 13 is used. Punch) 15, that is, a conical pressing surface having a large apex angle is in contact with the tip (upper surface) of quadrangular columnar convex portion 5 A of column portion 5, and downward thrust Q by the hydraulic cylinder of caulking machine 13 , The head unit 14 is rotated by the torque T of the motor.
The thrust Q of the caulking machine 13 that performs the swing caulking process in this way is received by the three types of receiving tools 16A, 16A, the receiving tool 16B, and the receiving tool 16C (see also FIG. 12).
In addition, you may make it use the 1 type or 2 types of receiver of these instead of all the three types of receivers.

このような揺動加締め加工により、図１３（ａ）示す加工を開始した状態から、揺動加締め治具１５によって加圧された四角柱状凸部５Ａの先端部に塑性変形が生じてフランジ部である加締め部５Ｂが形成され、図１３（ｂ）の要部拡大部分縦断面正面図に示すように揺動加締めが完了した状態になる。なお、図１３（ｂ）において加締め機１３，１３の記載を省略している。
加締機１３の回転軸心Ｊ１に対して柱部５の軸心Ｊ２を一致させるように保持器１を順次回転位置決めしながら、全ての四角柱状凸部５Ａ，５Ａ，…の先端に対して揺動加締め加工を行うことにより、結合固定工程が終了する。
このような結合固定工程が終了した状態では、図１に示すように、連結体３（大径リング部６）の上面に、１個の柱部５に対して２個ずつの、軸方向視で略矩形状の加締部５Ｂ，５Ｂ，…が視認される。
このような揺動加締め加工による結合固定工程によれば、揺動加締め治具１５の押圧面が柱部５の四角柱状凸部５Ａの先端（上面）に常に接した状態で加工が行われるため、柱部５に衝撃荷重が掛かることがない。 With such swing caulking, plastic deformation occurs at the tip of the quadrangular columnar convex portion 5A pressurized by the swing caulking jig 15 from the state where the machining shown in FIG. The caulking portion 5B, which is a portion, is formed, and the swing caulking is completed as shown in the enlarged front view of the main part of the main portion in FIG. In addition, description of the crimping machines 13 and 13 is abbreviate | omitted in FIG.13 (b).
With respect to the tips of all the square columnar convex portions 5A, 5A,... While sequentially positioning the cage 1 so that the axis J2 of the column portion 5 is aligned with the rotation axis J1 of the crimping machine 13. By performing the swing caulking process, the coupling and fixing step is completed.
In a state where such a coupling and fixing step is completed, as shown in FIG. 1, two pieces are provided on the upper surface of the coupling body 3 (large-diameter ring portion 6) with respect to one pillar portion 5 as viewed in the axial direction. The substantially rectangular caulking portions 5B, 5B,.
According to such a coupling and fixing step by swing caulking, processing is performed in a state where the pressing surface of the swing caulking jig 15 is always in contact with the tip (upper surface) of the square columnar convex portion 5A of the column portion 5. Therefore, an impact load is not applied to the column part 5.

以上の説明においては、「連結体取付け工程」を行った後に「面押し工程」を行い、その後に「連結体取外し工程」を行う場合を示したが、「面押し工程」を「基体ブランク切断工程」の後に行い、基体のブランク２Ａに対して、傾斜面８，８，…及び傾斜面９，９，…を形成するようにしてもよい。
そのような製造工程にした場合は、「連結体取付け工程」及び「連結体取外し工程」は不要になる。
また、以上の説明においては、「結合固定工程」を揺動加締め加工により行う場合を示したが、受け具により加締め機の推力を受け止めるので、要求仕様等によっては、揺動加締め加工以外の一般的な加締め加工を用いてもよい。 In the above description, the case where the “surface pressing step” is performed after the “connecting body attaching step” is performed and then the “connecting body removing step” is performed is described. After the step, the inclined surfaces 8, 8, ... and the inclined surfaces 9, 9, ... may be formed on the base blank 2A.
In such a manufacturing process, the “connecting body attaching step” and the “connecting body removing step” are not necessary.
Further, in the above description, the case where the “bonding fixing process” is performed by swing caulking is shown. However, since the thrust of the caulking machine is received by the support, depending on the required specifications, the swing caulking process is performed. Other general caulking processes may be used.

以上のようなスラスト球面ころ軸受用保持器１及びその製造方法によれば、別部材である基体２及び連結体３を結合固定して保持器１を形成するので、基体２及び連結体３の材料の変更や形状の変更がしやすいため、超大型のスラスト球面ころ軸受用保持器１であっても、所要の強度及び剛性を容易に確保して十分な負荷容量を持たせることができる。
また、基体２及び連結体３が、それぞれ鋼板をレーザ切断等により切断加工したブランク２Ａ，３Ａを基にして別体で製造されることから、多工程のプレス加工をする必要がないため、金型費用及び製造コストを削減できる。
さらに、柱部５の先端部に設けられた、周方向の前後面から突出する第１突出片１１，１１の小径リング部４側に、周方向の前後面から突出する第２突出片１２，１２が設けられているので、軸方向の負荷（スラスト負荷）が保持器１に作用した際に、第２突出片１２，１２，…が負荷を受けることから、基体２及び連結体３の結合固定部に対して負荷が直接作用しないため、基体２及び連結体３の結合固定部の信頼性をより向上できる。 According to the thrust spherical roller bearing retainer 1 and the manufacturing method thereof as described above, since the retainer 1 is formed by connecting and fixing the base 2 and the connecting body 3 which are separate members, the base 2 and the connecting body 3 Since it is easy to change the material and shape, even the super large thrust spherical roller bearing retainer 1 can easily secure the required strength and rigidity and have sufficient load capacity.
In addition, since the base body 2 and the connecting body 3 are manufactured separately based on the blanks 2A and 3A obtained by cutting a steel plate by laser cutting or the like, there is no need to perform multi-step pressing, Mold cost and manufacturing cost can be reduced.
Furthermore, the 2nd protrusion piece 12 which protrudes from the front-and-rear surface of the circumferential direction on the small diameter ring part 4 side of the 1st protrusion pieces 11 and 11 which were provided in the front-end | tip part of the pillar part 5 and protruded from the front-and-back surface of the circumferential direction 12 is provided, and when the axial load (thrust load) acts on the cage 1, the second projecting pieces 12, 12,... Since the load does not directly act on the fixed part, the reliability of the joint fixed part of the base body 2 and the coupling body 3 can be further improved.

さらにまた、第２突出片１２，１２の長さは第１突出片１１，１１よりも短く、第２突出片１２，１２は第１突出片１１，１１よりも小径リング部４側に位置しているので、球面ころＲ，Ｒ，…をポケット孔Ｐ，Ｐ，…に収容して内輪１０を装着した状態でも、第２突出片１２の横の第１突出片１１の下方位置に空間ができることから、第１突出片１１の下面を受け具１６Ａにより支持できるため、基体２の四角柱状凸部５Ａ，５Ａ，…を連結体３の四角孔６Ａ，６Ａ，…に挿入した状態で、受け具１６Ａにより加締め機１３の推力Ｑを受け止めながら、揺動加締め加工等の加締め加工を行うことができる。その上、受け具１６Ａによる第１突出片１１の下面の支持以外にも、第１突出片１１，１１間の径方向に貫通する通孔Ｈへの受け具１６Ｂの挿入、受け具１６Ｃによる第２突出片１２，１２、及び柱部５，５の外面（背面）の支持を併用できる。よって、加締め機１３の推力Ｑが基体２の柱部５，５，…に直接作用する構成のように、柱部５，５，…が座屈変形しないように推力Ｑを抑える必要がなく、加締め機１３の推力を大きくできることから加工時間が短くなるため、生産性を向上できる。
また、基体２及び連結体３を揺動加締め加工等の加締め加工により結合固定するので、基体２及び連結体３の結合固定を溶接接合により行う場合のようにスパッタが発生しない。よって、基体２のポケット孔Ｐ，Ｐ，…に球面ころＲ，Ｒ，…を組み込む工程を行い、その後、基体２に組み込まれた球面ころＲ，Ｒ，…をスラスト球面ころ軸受の内輪１０に組み付ける工程を行い、球面ころＲ，Ｒ，…及び内輪１０を基体１０にセットした状態（「ころ・内輪・連結体取付け工程」を行った状態）で結合固定工程を行って基体２及び連結体３を結合固定しても、スパッタが球面ころＲ，Ｒ，…や内輪１０に付着することがないため、軸受の寿命に悪影響を与えることがない。 Furthermore, the lengths of the second projecting pieces 12 and 12 are shorter than the first projecting pieces 11 and 11, and the second projecting pieces 12 and 12 are located closer to the small-diameter ring portion 4 than the first projecting pieces 11 and 11. Therefore, even when the spherical rollers R, R,... Are accommodated in the pocket holes P, P,... And the inner ring 10 is mounted, there is a space below the first protruding piece 11 next to the second protruding piece 12. Since the lower surface of the first projecting piece 11 can be supported by the receiving tool 16A, the rectangular columnar convex portions 5A, 5A,... Of the base body 2 are inserted in the square holes 6A, 6A,. While receiving the thrust Q of the caulking machine 13 by the tool 16A, the caulking process such as the swing caulking process can be performed. In addition to the support of the lower surface of the first projecting piece 11 by the receiving tool 16A, the insertion of the receiving tool 16B into the through hole H penetrating in the radial direction between the first projecting pieces 11 and 11, and the first by the receiving tool 16C. 2 The support of the outer surface (back surface) of the protruding pieces 12 and 12 and the column parts 5 and 5 can be used together. Therefore, unlike the configuration in which the thrust Q of the caulking machine 13 directly acts on the pillars 5, 5,... Of the base 2, there is no need to suppress the thrust Q so that the pillars 5, 5,. Since the thrust of the crimping machine 13 can be increased, the processing time is shortened, so that productivity can be improved.
Further, since the base body 2 and the coupling body 3 are coupled and fixed by a caulking process such as a swing caulking process, the spatter does not occur as in the case where the base body 2 and the coupling body 3 are coupled and fixed by welding. Therefore, a process of incorporating the spherical rollers R, R,... Into the pocket holes P, P,... Of the base 2 is performed, and then the spherical rollers R, R,. The assembly process is performed, and the base 2 and the coupling body are performed by performing the coupling and fixing process in a state where the spherical rollers R, R,... And the inner ring 10 are set on the base body 10 (the “roller / inner ring / coupling body mounting process”). Even when 3 is coupled and fixed, spatter does not adhere to the spherical rollers R, R,... And the inner ring 10, so that the bearing life is not adversely affected.

さらに、基体２及び連結体３の結合固定を揺動加締め加工等の加締め加工により行うことにより、基体２及び連結体３の結合固定を溶接接合により行う場合のような溶接部の経年劣化の恐れがないため、基体２及び連結体３の結合固定部の信頼性を長期にわたって確保できる。
さらにまた、基体２及び連結体３の結合固定を揺動加締め加工により行うことにより、垂直軸方向の衝撃荷重が柱部５，５，…に作用しないことから、柱部５，５，…の反りや変形等を抑制できるため、鋼板を切断加工したブランク２Ａ，３Ａを基にして製造される超大型保持器１の精度の確保が容易になるとともに、基体２及び連結体３の結合固定を溶接接合により行う場合のような高熱の影響による保持器１の精度の悪化もない。
また、柱部５の先端部に、周方向に離間した２個の四角柱状凸部５Ａ，５Ａが設けられているので、基体２の四角柱状凸部５Ａ，５Ａ，…を連結体３の四角孔６Ａ，６Ａ，…に挿入した状態で、１個の柱部５ごとに揺動加締め加工を行う際に、１個の柱部５の先端の周方向に離間した２個の四角柱状凸部５Ａ，５Ａが連結体３の四角孔６Ａ，６Ａに挿入されているため、柱部５のねじれ変形を抑制できる。 Further, by performing the coupling and fixing of the base body 2 and the coupling body 3 by a caulking process such as a rocking caulking process, the deterioration of the welded portion over time as in the case where the coupling and fixing of the base body 2 and the coupling body 3 are performed by welding joining. Therefore, the reliability of the joint fixing portion of the base body 2 and the coupling body 3 can be ensured over a long period of time.
Furthermore, since the base 2 and the coupling body 3 are coupled and fixed by swing caulking, the impact load in the vertical axis direction does not act on the column portions 5, 5,. Warpage, deformation, and the like can be suppressed, so that it is easy to ensure the accuracy of the super-large cage 1 manufactured based on the blanks 2A and 3A obtained by cutting a steel plate, and the base 2 and the coupling body 3 are fixedly fixed. There is no deterioration in the accuracy of the cage 1 due to the influence of high heat as in the case of performing welding by welding.
Further, since the two square columnar convex portions 5A, 5A spaced apart in the circumferential direction are provided at the tip of the column portion 5, the square columnar convex portions 5A, 5A,. In the state of being inserted into the holes 6A, 6A,..., Two quadrangular columnar protrusions spaced apart in the circumferential direction at the tip of the single column portion 5 when performing swing caulking for each single column portion 5 Since the portions 5A and 5A are inserted into the square holes 6A and 6A of the connector 3, the torsional deformation of the column portion 5 can be suppressed.

Ａ 回転中心ガイド孔
Ｂ 円板状部材
Ｃ 外周部
Ｄ 柱部となる部分
Ｅ 折り曲げ工程における位置決め固定用ピン孔
Ｆ 吊りボルト用孔
Ｇ 抜き孔
Ｈ 通孔
Ｊ１ 回転軸心
Ｊ２ 四角柱状凸部の軸心
Ｐ ポケット孔
Ｑ 推力
Ｒ 球面ころ
Ｓ 第１突出片間の隙間
Ｔ トルク
ｔ１，ｔ２ 板厚
１ スラスト球面ころ軸受用保持器
２ 基体
２Ａ 基体のブランク
３ 連結体
３Ａ 連結体のブランク
４ 小径リング部
５ 柱部
５Ａ 四角柱状凸部
５Ｂ 加締め部
６ 大径リング部
６Ａ 四角孔
７ 舌片
８，９ 傾斜面
１０ 内輪
１０Ａ 係止段部
１１ 第１突出片
１２ 第２突出片
１３ 加締め機
１４ ヘッド部
１５ 揺動加締め治具
１６Ａ，１６Ｂ，１６Ｃ 受け具 A Rotation center guide hole B Disk-shaped member C Peripheral part D Part E to be a pillar part Position fixing pin hole F Bending bolt hole G Drain hole H Through hole J1 Rotating shaft center J2 Axis of square columnar convex part Core P Pocket hole Q Thrust R Spherical roller S Gap between first projecting pieces T Torque t1, t2 Thickness 1 Thrust spherical roller bearing cage 2 Base 2A Base blank 3 Connected body 3A Connected body blank 4 Small diameter ring portion 5 Column part 5A Square columnar convex part 5B Caulking part 6 Large-diameter ring part 6A Square hole 7 Tongue piece 8, 9 Inclined surface 10 Inner ring 10A Locking step part 11 First projecting piece 12 Second projecting piece 13 Caulking machine 14 Head part 15 Swing caulking jig 16A, 16B, 16C

Claims (8)

軸方向に離間した小径リング部及び大径リング部を球面ころの外周面に摺接する複数の柱部により繋いだ形状を成し、前記球面ころを収容保持するための複数のポケット孔が周方向等分に形成され、前記球面ころを前記ポケット孔に収容してスラスト球面ころ軸受の内輪を装着した状態で、前記内輪の外周面に形成された係止段部に前記大径リング部が係止され、前記球面ころ及び前記内輪と一体化された状態が保持されるスラスト球面ころ軸受用保持器であって、
前記小径リング部及び前記柱部からなり、前記柱部の先端に四角柱状凸部が設けられるとともに、前記柱部の前記四角柱状凸部の基端側に周方向の前後面から突出する第１突出片、及び前記第１突出片の前記小径リング部側に位置して周方向の前後面から突出する、前記第１突出片よりも短い第２突出片が設けられた基体と、前記大径リング部からなる、前記四角柱状凸部が挿入される四角孔が設けられた連結体とを別部材とし、これらがそれぞれ鋼板を切断加工したブランクを基にして製造されてなり、前記基体の四角柱状凸部を前記連結体の四角孔に挿入した状態で結合固定されたことを特徴とするスラスト球面ころ軸受用保持器。 A small-diameter ring portion and a large-diameter ring portion that are separated in the axial direction are connected by a plurality of column portions that are in sliding contact with the outer peripheral surface of the spherical roller, and a plurality of pocket holes for accommodating and holding the spherical roller are circumferentially provided. The large-diameter ring portion is engaged with a locking step portion formed on the outer peripheral surface of the inner ring in a state where the spherical roller is accommodated in the pocket hole and the inner ring of the thrust spherical roller bearing is mounted. A thrust spherical roller bearing retainer that is stopped and held in an integrated state with the spherical roller and the inner ring,
A first column projecting from the front and rear surfaces in the circumferential direction is formed of the small-diameter ring portion and the column portion, and a quadrangular columnar convex portion is provided at a tip of the column portion, and a proximal end side of the quadrangular columnar convex portion of the column portion. A base provided with a projecting piece, a second projecting piece shorter than the first projecting piece, located on the small-diameter ring portion side of the first projecting piece and projecting from the front and rear surfaces in the circumferential direction; It is made of a connecting body comprising a ring portion and provided with a square hole into which the quadrangular columnar convex portion is inserted, each of which is manufactured based on a blank obtained by cutting a steel plate, and the square of the base body. A thrust spherical roller bearing retainer, wherein the columnar convex portions are coupled and fixed in a state of being inserted into the square holes of the connecting body. 前記柱部の１個に対して前記四角柱状凸部を周方向に離間して２個形成してなる請求項１記載のスラスト球面ころ軸受用保持器。   2. A thrust spherical roller bearing retainer according to claim 1, wherein two of the square columnar convex portions are formed spaced apart in the circumferential direction with respect to one of the column portions. 前記連結体が平面状のものであり、前記第１突出片と前記第２突出片との間を折り曲げて、前記四角柱状凸部を前記連結体に直交させてなる請求項１又は２記載のスラスト球面ころ軸受用保持器。   The said connection body is a planar thing, Bends between the said 1st protrusion piece and the said 2nd protrusion piece, The said square pillar-shaped convex part is orthogonally crossed with the said connection body, or Claim 1 or 2 formed. Thrust spherical roller bearing cage. 前記柱部の先端部に形成された前後の第１突出片間に径方向に貫通する通孔を形成してなる請求項１〜３の何れか１項に記載のスラスト球面ころ軸受用保持器。   The thrust spherical roller bearing retainer according to any one of claims 1 to 3, wherein a through-hole penetrating in a radial direction is formed between front and rear first projecting pieces formed at a front end portion of the column portion. . 前記四角柱状凸部の先端を前記連結体の表面から突出させ、前記四角柱状凸部の先端を揺動加締め加工により塑性変形させて拡径することにより前記基体及び連結体が結合固定され、前記連結体の表面から突出して軸方向視で略矩形状に視認される、前記柱部の１個に対して２個の加締め部を備えてなる請求項２〜４の何れか１項に記載のスラスト球面ころ軸受用保持器。   The base and the coupling body are coupled and fixed by projecting the tip of the quadrangular columnar convex portion from the surface of the connecting body and expanding the diameter by plastically deforming the tip of the quadrangular columnar convex portion by swing caulking, 5. The method according to any one of claims 2 to 4, further comprising two caulking portions that protrude from the surface of the coupling body and are visually recognized in a substantially rectangular shape when viewed in the axial direction. Thrust spherical roller bearing retainer as described. 軸方向に離間した小径リング部及び大径リング部を球面ころの外周面に摺接する複数の柱部により繋いだ形状を成し、前記球面ころを収容保持するための複数のポケット孔が周方向等分に形成され、前記球面ころを前記ポケット孔に収容してスラスト球面ころ軸受の内輪を装着した状態で、前記内輪の外周面に形成された係止段部に前記大径リング部が係止され、前記球面ころ及び前記内輪と一体化された状態が保持されるスラスト球面ころ軸受用保持器の製造方法であって、
前記小径リング部及び前記柱部からなり、前記柱部の先端に四角柱状凸部が設けられるとともに、前記柱部の前記四角柱状凸部の基端側に周方向の前後面から突出する第１突出片、及び前記第１突出片の前記小径リング部側に位置して周方向の前後面から突出する、前記第１突出片よりも短い第２突出片が設けられた基体と、前記大径リング部からなる、前記四角柱状凸部が挿入される四角孔が設けられた連結体とを別部材とし、これらがそれぞれ鋼板を切断加工したブランクを基にして製造され、
前記球面ころを前記基体のポケット孔に収容して前記内輪を装着し、前記基体の四角柱状凸部を前記連結体の四角孔に挿入して前記四角柱状凸部の先端を前記連結体の表面から突出させた状態で、前記第１突出片の下面及び前記第２突出片の外面の少なくともどちらかを受け具により支持して、加締め機の推力を前記受け具により受け止めながら、前記四角柱状凸部の先端を揺動加締め加工により塑性変形させて拡径することにより前記基体及び前記連結体が結合固定されることを特徴とするスラスト球面ころ軸受用保持器の製造方法。 A small-diameter ring portion and a large-diameter ring portion that are separated in the axial direction are connected by a plurality of column portions that are in sliding contact with the outer peripheral surface of the spherical roller, and a plurality of pocket holes for accommodating and holding the spherical roller are circumferentially provided. The large-diameter ring portion is engaged with a locking step portion formed on the outer peripheral surface of the inner ring in a state where the spherical roller is accommodated in the pocket hole and the inner ring of the thrust spherical roller bearing is mounted. A method for producing a thrust spherical roller bearing retainer that is held in an integrated state with the spherical roller and the inner ring,
A first column projecting from the front and rear surfaces in the circumferential direction is formed of the small-diameter ring portion and the column portion, and a quadrangular columnar convex portion is provided at a tip of the column portion, and a proximal end side of the quadrangular columnar convex portion of the column portion. A base provided with a projecting piece, a second projecting piece shorter than the first projecting piece, located on the small-diameter ring portion side of the first projecting piece and projecting from the front and rear surfaces in the circumferential direction; Made of a ring part, and a connected body provided with a square hole into which the quadrangular columnar convex part is inserted, is manufactured based on a blank obtained by cutting each steel sheet,
The spherical roller is accommodated in the pocket hole of the base body, the inner ring is mounted, the square columnar convex portion of the base body is inserted into the square hole of the coupling body, and the tip of the square columnar convex portion is the surface of the coupling body In the state of projecting from the first projecting piece, at least one of the lower surface of the first projecting piece and the outer surface of the second projecting piece is supported by a receiving tool, and the thrust of the crimping machine is received by the receiving tool while A method of manufacturing a thrust spherical roller bearing retainer, wherein the base and the coupling body are coupled and fixed by plastically deforming a tip of a convex portion by swing caulking and expanding the diameter. 前記柱部の１個に対して前記四角柱状凸部を周方向に離間して２個形成してなる請求項６記載のスラスト球面ころ軸受用保持器の製造方法。   The method for producing a thrust spherical roller bearing retainer according to claim 6, wherein two of the quadrangular columnar convex portions are formed apart from each other in the circumferential direction with respect to one of the column portions. 前記第１突出片間に径方向に貫通する通孔を形成し、前記球面ころを前記基体のポケット孔に収容して前記内輪を装着し、前記基体の四角柱状凸部を前記連結体の四角孔に挿入して前記四角柱状凸部の先端を前記連結体の表面から突出させた状態で、前記通孔に受け具を挿入して前記基体を支持し、加締め機の推力を前記受け具により受け止めながら前記揺動加締め加工を行う請求項６又は７記載のスラスト球面ころ軸受用保持器の製造方法。   A through-hole penetrating in the radial direction is formed between the first projecting pieces, the spherical roller is received in the pocket hole of the base body, the inner ring is mounted, and the quadrangular columnar convex portion of the base body is connected to the square of the connecting body. Inserting a receptacle into the through hole to support the base in a state where the tip of the quadrangular prism-shaped convex portion is protruded from the surface of the coupling body by inserting into the hole, and the thrust of the crimping machine is applied to the receptacle. The method of manufacturing a thrust spherical roller bearing retainer according to claim 6 or 7, wherein the swing caulking process is performed while receiving by the step.
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