JP2008045691A - Thrust bearing manufacturing method and thrust bearing - Google Patents

Thrust bearing manufacturing method and thrust bearing Download PDF

Info

Publication number
JP2008045691A
JP2008045691A JP2006223208A JP2006223208A JP2008045691A JP 2008045691 A JP2008045691 A JP 2008045691A JP 2006223208 A JP2006223208 A JP 2006223208A JP 2006223208 A JP2006223208 A JP 2006223208A JP 2008045691 A JP2008045691 A JP 2008045691A
Authority
JP
Japan
Prior art keywords
ring
cage
bearing
thrust bearing
manufacturing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2006223208A
Other languages
Japanese (ja)
Inventor
Toshiyuki Fukami
理之 冨加見
Katsushi Abe
克史 阿部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Priority to JP2006223208A priority Critical patent/JP2008045691A/en
Publication of JP2008045691A publication Critical patent/JP2008045691A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • 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
    • F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
    • 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
    • F16C33/543—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part
    • 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
    • F16C33/58—Raceways; Race rings
    • F16C33/588—Races of sheet metal
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/65—Gear shifting, change speed gear, gear box

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To ensure accuracy in the projecting amount and strength of claws of a bearing washer and to make a cage and the bearing washer easy to assemble and hard to separate. <P>SOLUTION: Raceway track annulus ring parts 4a, 5a are formed inclining in conical shape so that the respective claws 4c, 5c projected to the cage 3 side formed at the tips of collars 4b, 5b of an inner ring 4 and an outer ring 5 incline in a retreating direction, and the inner ring 4 and the outer ring 5 are combined on the upper and lower sides of the cage 3 and heat-treated. With deformation by heat treatment, the respective raceway track annulus ring parts 4a, 5a of the inner ring 4 and outer ring 5 are deformed in flat annulus ring shape with no inclination, and the inner diameter edge and outer diameter edge of the cage 3 are locked by the respective claws 4c, 5c inclined to retreat, thus making the cage 3 nonseparable. The accuracy in the projecting amount and strength of the respective claws 4c, 5c can thereby be ensured, and the cage 3 and the inner ring and outer ring 5 are made easy to assemble and hard to separate. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、軌道輪ところを保持する保持器とを非分離としたスラスト軸受の製造方法とスラスト軸受に関する。   The present invention relates to a thrust bearing manufacturing method and a thrust bearing in which a cage that holds a raceway ring is not separated.

複数のころを放射状に保持する保持器と、内径側に鍔を形成した内輪または外径側に鍔を形成した外輪の少なくとも一方の軌道輪とを備え、ラジアル方向の軸受内部隙間を軌道輪の鍔で規制したスラスト軸受には、軌道輪の鍔の先端に円周方向の複数箇所で保持器側に張り出す爪を曲げ加工やステーキングによって形成し、この爪の張り出し長さを軸受内部隙間よりも大きくして、保持器の内周縁または外周縁を係止し、軌道輪と保持器を非分離とした一体型のものがある（例えば、特許文献１、２参照）。この一体型のスラスト軸受には、軌道輪として内輪と外輪の両方を備え、これらの２つの軌道輪と保持器を非分離とした三位一体型のものと、内輪と外輪のいずれか一方を備え、１つの軌道輪と保持器を非分離とした二位一体型のものとがある。   A cage that holds a plurality of rollers radially, and at least one race ring of an inner ring that has a flange on the inner diameter side or an outer ring that has a flange on the outer diameter side. For thrust bearings regulated by scissors, claws that project to the cage side at multiple locations in the circumferential direction are formed by bending or staking at the tip of the raceway's scissors. There is an integrated type in which the inner peripheral edge or the outer peripheral edge of the cage is made larger and the raceway ring and the cage are not separated (see, for example, Patent Documents 1 and 2). This integral thrust bearing includes both an inner ring and an outer ring as bearing rings, a three-piece integral type in which these two bearing rings and a cage are not separated, and either an inner ring or an outer ring, There is a two-piece integrated type in which one bearing ring and the cage are not separated.

このような一体型のスラスト軸受では、一般的な転がり軸受と同様に、軌道輪は焼入れ、焼戻し処理等によって強化されるので、その爪も強化されて容易には変形しなくなる。このため、保持器と軌道輪を確実に非分離とするために軸受内部隙間より爪を大きく張り出すと、保持器を軌道輪に組み込むことができず、そのまま無理に保持器を組み込もうとすると、保持器や爪を損傷する問題がある。   In such an integrated thrust bearing, the bearing ring is strengthened by quenching, tempering treatment, etc., as in a general rolling bearing, so that its claws are strengthened and are not easily deformed. For this reason, in order to ensure that the cage and the bearing ring are not separated from each other, if the claws are extended beyond the bearing internal clearance, the cage cannot be incorporated into the race and the cage will be forcibly incorporated. Then, there exists a problem which damages a holder | retainer and a nail | claw.

このような問題に対して、特許文献１に記載されたものでは、軌道輪の焼入れ処理時に爪の部分を焼入れ防止するか、焼入れ処理後に焼なまし処理を行って、保持器の組み込み後に爪の部分を曲げ加工するようにしている。また、特許文献２に記載されたものでは、軌道輪と保持器を一体に組み立てた後、一体に組み立てたスラスト軸受に浸炭焼入れ、焼戻し処理を施している。   With respect to such a problem, the one described in Patent Document 1 prevents the claw portion from being quenched during the quenching process of the bearing ring or performs an annealing process after the quenching process, The part is bent. Moreover, in what was described in patent document 2, after a track ring and a cage | basket | assembly were assembled | assembled integrally, the carburizing quenching and tempering process were performed to the thrust bearing assembled integrally.

特開２００３−８３３３９号公報JP 2003-83339 A 特開２００３−２５４３２７号公報JP 2003-254327 A

特許文献１および２に記載されたスラスト軸受は、保持器を組み込み前の軌道輪の爪が形成される部分を軟らかくして、ころを保持する保持器を組み込んだ後で、曲げ加工やステーキングによって爪を形成できるが、保持器を組み込んだ状態で爪を形成しようとすると、爪が加工されて張り出す側に保持器が組み込まれているので、加工される爪を受ける受け治具を配置できず、爪の張り出し量の精度が悪くなる問題がある。このように爪の張り出し量の精度が悪くなると、爪がころと干渉する恐れがある。   The thrust bearings described in Patent Documents 1 and 2 are designed to bend and staking after the cage that holds the rollers is softened by softening the portion where the claw of the raceway ring before the cage is assembled. The nail can be formed by the above, but if you try to form the nail with the cage installed, the cage is built on the side where the nail is processed and overhangs, so a receiving jig is placed to receive the nail to be processed There is a problem that the accuracy of the protruding amount of the nail becomes worse. Thus, when the accuracy of the protruding amount of the nail is deteriorated, the nail may interfere with the roller.

また、特許文献１に記載された軌道輪の焼入れ処理時に爪の部分を焼入れ防止するか、焼入れ処理後に焼なまし処理を行ったスラスト軸受は、爪の強度を十分に確保できない問題もある。   Further, the thrust bearing described in Patent Document 1 that prevents quenching of the claw portion during the quenching process of the bearing ring or performs the annealing process after the quenching process has a problem that the strength of the claw cannot be sufficiently secured.

そこで、本発明の課題は、軌道輪の爪の張り出し量の精度と強度を確保でき、保持器と軌道輪を組み易く、分離し難くすることである。   Accordingly, an object of the present invention is to ensure the accuracy and strength of the protruding amount of the pawl of the bearing ring, and to make it easy to assemble the retainer and the bearing ring and make it difficult to separate them.

上記の課題を解決するために、本発明は、複数のころを放射状に保持する保持器と、軌道円環部の内径側に鍔を形成した内輪、または軌道円環部の外径側に鍔を形成した外輪の少なくとも一方の軌道輪とを備え、ラジアル方向の軸受内部隙間を前記鍔で規制して、この鍔の先端に円周方向の複数箇所で半径方向に前記保持器側へ張り出す爪を形成し、この爪の張り出し長さを前記軸受内部隙間よりも大きくして、前記保持器の内周縁または外周縁を係止し、前記軌道輪と保持器を非分離としたスラスト軸受の製造方法において、前記鍔の先端に形成した保持器側へ張り出す爪が後退する方向へ傾斜するように、前記軌道輪の軌道円環部を円錐状に傾斜させて成形し、この軌道円環部を円錐状に傾斜させた軌道輪に前記保持器を組み合わせて、これらの組み合わせた軌道輪と保持器を熱処理し、この熱処理工程で、前記円錐状に傾斜させて成形した軌道輪の軌道円環部を傾斜のない平坦な円環状に変形させて、前記爪の傾斜をなくして前記保持器側へ張り出させ、前記軌道輪と保持器を非分離とする方法を採用した。   In order to solve the above-described problems, the present invention provides a cage that holds a plurality of rollers in a radial manner, an inner ring in which a flange is formed on the inner diameter side of the track ring portion, or a hook on the outer diameter side of the track ring portion. At least one of the outer races formed with an outer ring, and a radial bearing internal clearance is restricted by the rod, and the tip of the rod extends radially toward the cage at a plurality of circumferential positions. A thrust bearing in which a claw is formed, the extension length of the claw is made larger than the inner clearance of the bearing, the inner peripheral edge or the outer peripheral edge of the cage is locked, and the bearing ring and the cage are not separated. In the manufacturing method, the orbital ring portion of the orbital ring is formed so as to be inclined in a conical shape so that a claw projecting toward the cage formed at the tip of the saddle is inclined, and the orbital ring is formed. Combining the cage with a raceway whose part is inclined in a conical shape, The combined race ring and cage are heat treated, and in this heat treatment step, the race ring portion of the race ring formed by inclining in the conical shape is transformed into a flat annular shape without inclination, and the claw is deformed. The method of eliminating the inclination and extending the bearing ring to the cage side so that the raceway ring and the cage are not separated was adopted.

すなわち、鍔の先端に形成した保持器側へ張り出す爪が後退する方向へ傾斜するように、軌道輪の軌道円環部を円錐状に傾斜させて成形し、この軌道円環部を円錐状に傾斜させた軌道輪に保持器を組み合わせて、これらの組み合わせた軌道輪と保持器を熱処理し、この熱処理工程で、円錐状に傾斜させて成形した軌道輪の軌道円環部を傾斜のない平坦な円環状に変形させて、爪を傾斜がなくなるように保持器側へ張り出させ、軌道輪と保持器を非分離とすることにより、ころを保持する保持器を組み込む前の軌道輪に爪を形成して、爪の張り出し量の精度と強度を確保するとともに、保持器と軌道輪を組み易く、分離し難くした。なお、ころは熱処理前に保持器に組み込んでも、熱処理後に組み込んでもよい。   That is, the orbital ring portion of the raceway ring is formed in a conical shape so that the claw that protrudes toward the cage formed at the tip of the saddle is inclined in the backward direction, and this orbital ring portion is formed in a conical shape. The bearing ring is combined with a cage, and the combined race ring and cage are heat-treated. In this heat treatment step, the race ring portion of the race ring formed into a conical shape is inclined without any inclination. By deforming it into a flat annular shape, projecting the pawl to the cage side so that there is no inclination, and making the raceway and cage non-separated, the raceway before incorporating the cage that holds the rollers Claws were formed to ensure the accuracy and strength of the amount of protrusion of the claws, and the cage and raceway were easy to assemble and difficult to separate. The roller may be incorporated in the cage before heat treatment or after heat treatment.

前記熱処理は浸炭焼入れ焼戻しとするとよい。   The heat treatment is preferably carburizing, quenching and tempering.

前記爪は曲げ加工またはステーキングで形成することができる。   The nail can be formed by bending or staking.

前記軸受内部隙間を軸受部偏心量の２倍以上とすることにより、保持器の内径面または外径面の軌道輪の鍔との接触を防止し、軸受の円滑な回転を確保することができる。また、保持器の摩耗や変形も防止することができる。   By making the bearing internal clearance twice or more the amount of eccentricity of the bearing portion, it is possible to prevent contact between the inner diameter surface or outer diameter surface of the cage and the ring of the race, and to ensure smooth rotation of the bearing. . In addition, wear and deformation of the cage can be prevented.

前記軌道輪は薄鋼板で形成することができる。   The track ring can be formed of a thin steel plate.

前記保持器も薄鋼板で形成することができる。   The cage can also be formed of a thin steel plate.

上述した各スラスト軸受の製造方法は、自動車のトルクコンバータのタービンまたはインペラと、ステータとの間に組み付けられるスラスト軸受に好適である。   The manufacturing method of each thrust bearing mentioned above is suitable for the thrust bearing assembled | attached between the turbine or impeller of a torque converter of a motor vehicle, and a stator.

本発明のスラスト軸受の製造方法は、鍔の先端に形成した保持器側へ張り出す爪が後退する方向へ傾斜するように、軌道輪の軌道円環部を円錐状に傾斜させて成形し、この軌道円環部を円錐状に傾斜させた軌道輪に保持器を組み合わせて、これらの組み合わせた軌道輪と保持器を熱処理し、この熱処理工程で、円錐状に傾斜させて成形した軌道輪の軌道円環部を傾斜のない平坦な円環状に変形させて、爪を傾斜がなくなるように保持器側へ張り出させ、軌道輪と保持器を非分離としたので、ころを保持する保持器を組み込む前の軌道輪に爪を形成して爪の加工精度を確保できるとともに、後の熱処理で爪の強度も確保することができる。   The thrust bearing manufacturing method of the present invention is formed by inclining the orbital ring portion of the raceway in a conical shape so that the claw projecting toward the cage side formed at the tip of the saddle is inclined in the backward direction, The bearing ring is combined with a bearing ring in which this raceway ring portion is inclined in a conical shape, and the combined bearing ring and the cage are heat-treated. The bearing ring retains the roller because the raceway ring is deformed into a flat ring with no inclination, and the pawl is extended to the cage side so that the inclination is eliminated, so that the raceway ring and cage are not separated. A claw can be formed on the raceway before incorporating the claw to ensure the processing accuracy of the claw, and the strength of the claw can also be secured by a subsequent heat treatment.

前記軸受内部隙間を軸受部偏心量の２倍以上とすることにより、保持器の内径面または外径面の軌道輪の鍔との接触を防止し、軸受の円滑な回転を確保することができる。また、保持器の摩耗や変形も防止することができる。   By making the bearing internal clearance twice or more the amount of eccentricity of the bearing portion, it is possible to prevent contact between the inner diameter surface or outer diameter surface of the cage and the ring of the race, and to ensure smooth rotation of the bearing. . In addition, wear and deformation of the cage can be prevented.

以下、図面に基づき、本発明の実施形態を説明する。図１（ａ）、（ｂ）は、本発明に係る製造方法で製造したスラスト軸受１を示す。このスラスト軸受１は、複数のころ２を放射状に保持する保持器３と、軌道円環部４ａの内径側に鍔４ｂが形成された内輪４と、軌道円環部５ａの外径側に鍔５ｂが形成された外輪５とを備えた三位一体型のものであり、軸受部に大きな偏心回転が生じても、保持器３の内外径面が各鍔４ｂ、５ｂと接触しないように、ラジアル方向の軸受内部隙間が軸受部偏心量の２倍以上に設定されている。保持器３、内輪４および外輪５は、いずれも薄鋼板で形成されている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A and 1B show a thrust bearing 1 manufactured by the manufacturing method according to the present invention. The thrust bearing 1 includes a cage 3 for holding a plurality of rollers 2 radially, an inner ring 4 having a flange 4b formed on the inner diameter side of the track ring portion 4a, and a hook on the outer diameter side of the track ring portion 5a. It is a three-piece integrated type having an outer ring 5 formed with 5b, and in the radial direction so that the inner and outer diameter surfaces of the cage 3 do not come into contact with the flanges 4b and 5b even if a large eccentric rotation occurs in the bearing portion. The bearing internal clearance is set to at least twice the eccentric amount of the bearing portion. The cage 3, the inner ring 4 and the outer ring 5 are all formed of thin steel plates.

前記外輪５の鍔５ｂの先端には、曲げ加工によって、軸受内部隙間よりも長く内向きに張り出す複数の爪５ｃが、円周方向に等間隔で形成されており、これらの各爪５ｃで保持器３の外周縁が係止されて、保持器３と外輪５が非分離とされている。なお、内輪４の鍔４ｂの先端には、複数の外向きの爪４ｃがステーキングで形成され、保持器３と内輪４が非分離とされている。   At the tip of the flange 5b of the outer ring 5, a plurality of claws 5c projecting inward longer than the bearing internal gap are formed at equal intervals in the circumferential direction by bending, and each of these claws 5c The outer peripheral edge of the cage 3 is locked, and the cage 3 and the outer ring 5 are not separated. A plurality of outward claws 4c are formed by staking at the tip of the collar 4b of the inner ring 4, and the cage 3 and the inner ring 4 are not separated.

以下に、上述したスラスト軸受１を製造する手順を説明する。図２（ａ）、（ｂ）は、それぞれ組み立て前の内輪４と外輪５を示す。内輪４は、ステーキングで形成された外向きに張り出す爪４ｃが後退する方向へ傾斜するように、軌道円環部４ａが円錐状に傾斜させて成形されており、後退した各爪４ｃの先端で形成される差し渡し外径Ｄ４は、保持器３の内径と同等もしくは僅かに小さくなっている。また、外輪５は、曲げ加工で形成された内向きに張り出す爪５ｃが後退する方向へ傾斜するように、軌道円環部５ａが円錐状に傾斜させて成形されており、後退した各爪５ｃの先端で形成される差し渡し内径Ｄ５は、保持器３の外径と同等もしくは僅かに大きくなっている。   Below, the procedure which manufactures the thrust bearing 1 mentioned above is demonstrated. FIGS. 2A and 2B show the inner ring 4 and the outer ring 5 before assembly. The inner ring 4 is formed such that the orbital ring portion 4a is inclined in a conical shape so that the outwardly extending claws 4c formed by staking are inclined. A passing outer diameter D4 formed at the tip is equal to or slightly smaller than the inner diameter of the cage 3. Further, the outer ring 5 is formed such that the orbital ring portion 5a is inclined in a conical shape so that the inwardly projecting claw 5c formed by bending is inclined, and each retracted claw A passing inner diameter D5 formed at the tip of 5c is equal to or slightly larger than the outer diameter of the cage 3.

図２（ａ）、（ｂ）に示した内輪４と外輪５を、図３に示すように、ころ２を保持した保持器３の上下に組み合わせて、熱処理炉（図示省略）の中に装入し、これらに浸炭焼入れ焼戻しの熱処理を施す。   The inner ring 4 and the outer ring 5 shown in FIGS. 2 (a) and 2 (b) are combined in the upper and lower sides of the cage 3 holding the rollers 2 as shown in FIG. And carburizing, quenching and tempering.

このように熱処理を施すことにより、内輪４と外輪５の円錐状に傾斜した各軌道円環部４ａ、５ａが、応力緩和による熱処理変形で傾斜のない平坦な円環状に変形し、この変形によって、後退するように傾斜していた内輪４と外輪５の各爪４ｃ、５ｃが、それぞれ傾斜がなくなるように保持器３側へ張り出して、保持器３の内径縁と外径縁を係止するようになり、図１（ｂ）に示したように、熱処理後の内輪４および外輪５と保持器３が非分離となる。また、浸炭焼入れ焼戻しの熱処理によって、内輪４と外輪５の各爪４ｃ、５ｃを含む全体が強化される。   By performing the heat treatment in this way, the raceway ring portions 4a and 5a inclined in a conical shape of the inner ring 4 and the outer ring 5 are deformed into a flat annular shape without inclination by heat treatment deformation by stress relaxation. The claws 4c and 5c of the inner ring 4 and the outer ring 5 that have been inclined so as to be retracted project to the cage 3 side so that the inclination is eliminated, and the inner and outer diameter edges of the cage 3 are locked. Thus, as shown in FIG. 1B, the inner ring 4 and the outer ring 5 after the heat treatment and the cage 3 are not separated. Moreover, the whole including each nail | claw 4c, 5c of the inner ring | wheel 4 and the outer ring | wheel 5 is strengthened by the heat processing of carburizing quenching tempering.

図４は、上述した製造方法で製造されたスラスト軸受１を使用した自動車のトルクコンバータを示す。このトルクコンバータは、エンジンの出力軸に連結されるインペラ２１と、トランスミッションの入力軸に連結されるタービン２２とが対向配置され、ケーシングに固定されるステータシャフト（図示省略）に一方向クラッチ２３を介してステータ２４が取り付けられており、それぞれ椀状に形成されたインペラブレード２１ａとタービンブレード２２ａの間で還流する流体を、これらの内径側でタービン２２側からインペラ２１側へ戻す際に、流体の流れ方向を変えてインペラ２１に順方向の回転力を付与して伝達トルクを増幅する。インペラブレード２１ａとタービンブレード２２ａに作用する流体圧は、必ずしも周方向で一様とはならないので、インペラ２１とタービン２２には偏心回転が生じやすく、その偏心量も最大０．５ｍｍ程度の比較的大きなものとなる。   FIG. 4 shows an automobile torque converter using the thrust bearing 1 manufactured by the manufacturing method described above. In this torque converter, an impeller 21 connected to an output shaft of an engine and a turbine 22 connected to an input shaft of a transmission are arranged to face each other, and a one-way clutch 23 is attached to a stator shaft (not shown) fixed to a casing. When the fluid that flows back between the impeller blade 21a and the turbine blade 22a formed in a bowl shape is returned from the turbine 22 side to the impeller 21 side on the inner diameter side, The flow direction is changed to apply a forward rotational force to the impeller 21 to amplify the transmission torque. Since the fluid pressure acting on the impeller blade 21a and the turbine blade 22a is not necessarily uniform in the circumferential direction, the impeller 21 and the turbine 22 are likely to be eccentrically rotated, and the amount of eccentricity is relatively large at about 0.5 mm. It will be big.

前記スラスト軸受１は、インペラ２１とステータ２４の間と、タービン２２とステータ２４の間との２箇所に組み付けられており、前者は外輪５がインペラハブ２１ｂに組み付けられ、後者は内輪４がタービンハブ２２ｂに組み付けられている。これらのスラスト軸受１の軸受内部隙間はインペラ２１やタービン２２の偏心量の２倍以上となる１〜２ｍｍに設定されている。したがって、保持器３の内径面や外径面が内輪４の鍔４ｂや外輪５の鍔５ｂと接触することはなく、インペラ２１とタービン２２の円滑な回転が保証されるとともに、保持器３の摩耗や変形が防止される。   The thrust bearing 1 is assembled at two locations between the impeller 21 and the stator 24, and between the turbine 22 and the stator 24. The former has the outer ring 5 assembled to the impeller hub 21b, and the latter has the inner ring 4 coupled to the turbine hub. 22b. The bearing internal clearances of these thrust bearings 1 are set to 1 to 2 mm, which is more than twice the eccentric amount of the impeller 21 and the turbine 22. Therefore, the inner diameter surface and the outer diameter surface of the cage 3 do not come into contact with the flange 4b of the inner ring 4 and the flange 5b of the outer ring 5, so that the impeller 21 and the turbine 22 can be smoothly rotated, and the cage 3 Wear and deformation are prevented.

上述した実施形態では、熱処理中の内輪と外輪の各軌道円環部を、応力緩和による熱処理変形で平坦な円環状に変形させるようにしたが、保持器に組み合わせた内輪と外輪を上下からクランプ部材でクランプして、そのクランプ力で変形させるようにしたり、上からの錘の重量で変形させるようにしてもよい。   In the above-described embodiment, the raceway ring portions of the inner ring and outer ring that are undergoing heat treatment are deformed into a flat annular shape by heat treatment deformation by stress relaxation, but the inner ring and outer ring combined with the cage are clamped from above and below. It may be clamped with a member and deformed by the clamping force, or may be deformed by the weight of the weight from above.

また、上述した実施形態では、スラスト軸受を三位一体型のものとしたが、本発明に係る製造方法は、二位一体型のスラスト軸受の製造にも適用することができる。   Further, in the above-described embodiment, the thrust bearing is of a three-position integrated type, but the manufacturing method according to the present invention can also be applied to the manufacture of a two-position integrated thrust bearing.

ａは本発明に係る製造方法で製造したスラスト軸受を示す平面図、ｂはａの縦断面図a is a plan view showing a thrust bearing manufactured by the manufacturing method according to the present invention, and b is a longitudinal sectional view of a. ａ、ｂは、それぞれ図１の組み込み前の内輪と外輪を示す縦断面図a and b are longitudinal sectional views showing the inner ring and the outer ring before assembling shown in FIG. 図２の内輪と外輪を保持器の上下に組み合わせて熱処理する状態を示す縦断面図FIG. 2 is a longitudinal sectional view showing a state in which the inner ring and the outer ring of FIG. 図１のスラスト軸受を組み付けたトルクコンバータを示す縦断面図1 is a longitudinal sectional view showing a torque converter assembled with the thrust bearing of FIG.

符号の説明Explanation of symbols

１ スラスト軸受
２ ころ
３ 保持器
４ 内輪
５ 外輪
４ａ、５ａ 軌道円環部
４ｂ、５ｂ 鍔
４ｃ、５ｃ 爪
２１ インペラ
２１ａ インペラブレード
２１ｂ インペラハブ
２２ タービン
２２ａ タービンブレード
２２ｂ タービンハブ
２３ 一方向クラッチ
２４ ステータ DESCRIPTION OF SYMBOLS 1 Thrust bearing 2 Roller 3 Cage 4 Inner ring 5 Outer ring 4a, 5a Race ring part 4b, 5b 鍔 4c, 5c Claw 21 Impeller 21a Impeller blade 21b Impeller hub 22 Turbine 22a Turbine blade 22b Turbine hub 23 One-way clutch 24 Stator

Claims (7)

複数のころを放射状に保持する保持器と、軌道円環部の内径側に鍔を形成した内輪、または軌道円環部の外径側に鍔を形成した外輪の少なくとも一方の軌道輪とを備え、ラジアル方向の軸受内部隙間を前記鍔で規制して、この鍔の先端に円周方向の複数箇所で半径方向に前記保持器側へ張り出す爪を形成し、この爪の張り出し長さを前記軸受内部隙間よりも大きくして、前記保持器の内周縁または外周縁を係止し、前記軌道輪と保持器を非分離としたスラスト軸受の製造方法において、前記鍔の先端に形成した保持器側へ張り出す爪が後退する方向へ傾斜するように、前記軌道輪の軌道円環部を円錐状に傾斜させて成形し、この軌道円環部を円錐状に傾斜させた軌道輪に前記保持器を組み合わせて、これらの組み合わせた軌道輪と保持器を熱処理し、この熱処理工程で、前記円錐状に傾斜させて成形した軌道輪の軌道円環部を傾斜のない平坦な円環状に変形させて、前記爪の傾斜をなくして前記保持器側へ張り出させ、前記軌道輪と保持器を非分離とするようにしたことを特徴とするスラスト軸受の製造方法。   A cage that holds a plurality of rollers radially, and at least one of the inner ring formed with a flange on the inner diameter side of the raceway ring portion or the outer ring formed with a collar on the outer diameter side of the raceway ring portion. The radial internal bearing clearance is regulated by the flange, and a claw projecting radially toward the cage is formed at a plurality of circumferential positions on the distal end of the flange. In a thrust bearing manufacturing method in which the inner peripheral edge or outer peripheral edge of the retainer is made larger than the bearing internal gap and the bearing ring and the retainer are not separated, the retainer formed at the tip of the flange The ring ring portion of the raceway ring is formed in a conical shape so that the claw projecting to the side is inclined backward, and the track ring portion is held in the cone ring inclined shape. Combine the bearings and heat the combined raceway and cage. In this heat treatment step, the raceway ring portion of the raceway formed by inclining in a conical shape is deformed into a flat annular shape having no slope, and the claws are tilted to be stretched toward the cage side. A method of manufacturing a thrust bearing, wherein the bearing ring and the cage are not separated. 前記熱処理を浸炭焼入れ焼戻しとした請求項１に記載のスラスト軸受の製造方法。   The method for manufacturing a thrust bearing according to claim 1, wherein the heat treatment is carburizing, quenching, and tempering. 前記爪を曲げ加工またはステーキングで形成した請求項１または２に記載のスラスト軸受の製造方法。   The method for manufacturing a thrust bearing according to claim 1, wherein the claw is formed by bending or staking. 前記軸受内部隙間を軸受部偏心量の２倍以上とした請求項１乃至３のいずれかに記載のスラスト軸受の製造方法。   The thrust bearing manufacturing method according to any one of claims 1 to 3, wherein the bearing internal gap is set to be twice or more the amount of eccentricity of the bearing portion. 前記軌道輪を薄鋼板で形成した請求項１乃至４のいずれかに記載のスラスト軸受の製造方法。   The method for manufacturing a thrust bearing according to any one of claims 1 to 4, wherein the bearing ring is formed of a thin steel plate. 前記保持器を薄鋼板で形成した請求項１乃至５のいずれかに記載のスラスト軸受の製造方法。   The method for manufacturing a thrust bearing according to any one of claims 1 to 5, wherein the cage is formed of a thin steel plate. 自動車のトルクコンバータのタービンまたはインペラと、ステータとの間に組み付けられたスラスト軸受において、請求項１乃至６のいずれかに記載の製造方法で製造されたことを特徴とするスラスト軸受。   A thrust bearing assembled between a turbine or an impeller of a torque converter of an automobile and a stator, wherein the thrust bearing is manufactured by the manufacturing method according to any one of claims 1 to 6.
JP2006223208A 2006-08-18 2006-08-18 Thrust bearing manufacturing method and thrust bearing Pending JP2008045691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006223208A JP2008045691A (en) 2006-08-18 2006-08-18 Thrust bearing manufacturing method and thrust bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006223208A JP2008045691A (en) 2006-08-18 2006-08-18 Thrust bearing manufacturing method and thrust bearing

Publications (1)

Publication Number Publication Date
JP2008045691A true JP2008045691A (en) 2008-02-28

Family

ID=39179620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006223208A Pending JP2008045691A (en) 2006-08-18 2006-08-18 Thrust bearing manufacturing method and thrust bearing

Country Status (1)

Country Link
JP (1) JP2008045691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019032246A1 (en) * 2017-08-08 2019-02-14 Schaeffler Technologies AG & Co. KG Thrust bearing assembly attachment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019032246A1 (en) * 2017-08-08 2019-02-14 Schaeffler Technologies AG & Co. KG Thrust bearing assembly attachment
US10690195B2 (en) 2017-08-08 2020-06-23 Schaeffler Technologies AG & Co. KG Thrust bearing assembly attachment

Similar Documents

Publication Publication Date Title
JP2002139060A (en) Wheel bearing device
JP2008174208A (en) Hub ring of bearing device for wheel and method of producing the same
JP2008055984A (en) Bearing device for wheel
JP2002089572A (en) Bearing device
JP2003083339A (en) Thrust bearing
JP2007211794A (en) Wheel bearing device
JP6555426B2 (en) Hub unit bearing and manufacturing method thereof, and automobile and manufacturing method thereof
JP4455182B2 (en) Wheel bearing device
JP6366233B2 (en) Wheel bearing device
JP5025137B2 (en) Wheel bearing device
JP2008045691A (en) Thrust bearing manufacturing method and thrust bearing
JP2008173995A (en) Bearing device for wheel
JP2001171309A (en) Rolling bearing unit for supporting wheel
JP2008057682A (en) Thrust bearing manufacturing method and thrust bearing
JP2007127242A (en) Wheel bearing device
JP2004132552A (en) Rolling bearing unit for supporting wheel
JP2005344799A (en) Thrust bearing
JP4697963B2 (en) Wheel bearing device
JP4780707B2 (en) Wheel bearing device
JP4627751B2 (en) Outer ring member manufacturing apparatus and outer ring member manufacturing method
JP4807775B2 (en) Wheel bearing device
JP2005282691A (en) Rolling bearing and wheel supporting bearing device
JP2008057599A (en) Bearing device for wheel
JP4446336B2 (en) Wheel bearing device
JP4763746B2 (en) Thrust bearing