WO2017014235A1 - Roulement à rouleaux cylindriques à deux rangées du type à rouleaux complémentaires - Google Patents

Roulement à rouleaux cylindriques à deux rangées du type à rouleaux complémentaires Download PDF

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Publication number
WO2017014235A1
WO2017014235A1 PCT/JP2016/071270 JP2016071270W WO2017014235A1 WO 2017014235 A1 WO2017014235 A1 WO 2017014235A1 JP 2016071270 W JP2016071270 W JP 2016071270W WO 2017014235 A1 WO2017014235 A1 WO 2017014235A1
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WO
WIPO (PCT)
Prior art keywords
row
ring
double
double row
collar
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.)
Ceased
Application number
PCT/JP2016/071270
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English (en)
Japanese (ja)
Inventor
阿沙葵 眞継
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
Publication of WO2017014235A1 publication Critical patent/WO2017014235A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • 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
    • 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
    • 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
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings

Definitions

  • This invention relates to a full-roller type double row cylindrical roller bearing.
  • Full-roller type double-row cylindrical roller bearings have two rows of cylindrical rollers and an integrated double-row outer ring with two raceways and a middle brim, without a cage, and maximizing the number of rollers in each row. It is a thing.
  • the inner periphery of the double row outer ring has a shape in which cylindrical rollers can be arranged in the axial direction from the outside of the bearing on each of the two raceway surfaces.
  • the conventional full-roller type double row cylindrical roller bearing has two integral inner rings each having one raceway surface and flanges on both sides.
  • the cylindrical rollers of each row can be temporarily held in a state of being arranged on the raceway surface of the corresponding inner ring, and can be arranged on the raceway surface of the double row outer ring from the axial direction.
  • two inner rings are separated from the double-row cylindrical rollers and the double-row outer ring after being inserted into the double-row outer ring together with the cylindrical rollers.
  • two inner rings are connected by attaching an inner ring coupling ring straddling between inner circumferential groove portions of each inner ring by a rolling press process.
  • the two inner rings are first formed as a single-row double-row inner ring having two raceways, a middle brim, and a brim on both sides, and the double-row inner ring is divided into two at the axial center. Manufactured as a set.
  • the non-separating means using two retaining rings as in Patent Document 1 can avoid mounting the inner ring coupling ring by rolling press processing, but the number of parts is larger than when the inner ring coupling ring is used. End up.
  • the problem to be solved by the present invention is to eliminate the waste loss due to the division failure of the inner ring in the full-roller type double row cylindrical roller bearing, and avoid the mounting of the inner ring coupling ring and the increase in the number of parts by rolling press processing. It is to make it non-separable.
  • the present invention has two rows of cylindrical rollers, two raceway surfaces and a middle collar on the inner periphery, and a shape in which the cylindrical rollers can be arranged on each raceway surface from the axial direction.
  • a full-roller type double-row cylindrical roller bearing having an integral double-row outer ring, and having two raceway surfaces and a middle collar on an outer periphery, and at least one of these raceway surfaces has the cylindrical roller And an integral double row inner ring having a shape that can be arranged from the axial direction, and an integral collar ring that is fixed by press-fitting the double row outer ring and supports the row of cylindrical rollers in the axial direction. The configuration is adopted.
  • the step of dividing the inner ring into two inner rings becomes unnecessary. For this reason, there is no waste loss due to poor division of the inner ring, and it is not necessary to mount the inner ring coupling ring by rolling press processing.
  • a double-row outer ring having a shape capable of arranging cylindrical rollers from the axial direction on each inner raceway surface and a double-row inner ring having a shape capable of arranging cylindrical rollers from the axial direction on at least one outer raceway surface are provided. Therefore, in the assembly stage before fixing the collar ring, the two rows of cylindrical rollers can be respectively disposed between the corresponding raceway surfaces of the double row outer ring and the double row inner ring.
  • the collar ring when the collar ring is fixed to the double row outer ring, it is possible to axially support a row of cylindrical rollers with the collar ring, so that the two rows of cylindrical rollers, the double row outer ring, and the double row inner ring are not separated.
  • the adoption of the above configuration eliminates the waste loss due to the division failure of the inner ring in the full-roller type double-row cylindrical roller bearing, and also increases the number of parts and attachment of the inner ring coupling ring by rolling press processing. It can be avoided and non-separated, and as a result, the manufacturing cost can be reduced.
  • Sectional drawing in the axial plane which shows the full-roller type double row cylindrical roller bearing which concerns on embodiment of this invention
  • this full-roller type double row cylindrical roller bearing includes two rows of cylindrical rollers 1 and 2, a double row outer ring 6 having two raceway surfaces 3 and 4 and a middle collar 5 on the inner periphery, A double-row inner ring 10 having two raceway surfaces 7 and 8 and a middle collar 9 on the outer periphery, and two collar rings 11 and 12 fixed to the double-row outer ring 6 are provided.
  • the direction along the central axis of the double-row inner ring and the double-row outer ring arranged concentrically is simply referred to as the “axial direction”, and the direction perpendicular to the central axis is simply referred to as the “radial direction”.
  • the circumferential direction around the central axis is simply referred to as “circumferential direction”.
  • the “full roller shape” of the full-roller type double row cylindrical roller bearing means the diameter of the cylindrical rollers 1 and 2 to which the sum of the clearances between the cylindrical rollers 1 and the sum of the clearances between the cylindrical rollers 2 correspond respectively.
  • a bearing without a cage that does not exceed that is, the number of rollers in each row is maximized).
  • the double-row outer ring 6 and the double-row inner ring 10 are integrally formed, that is, integrally formed race rings.
  • the inner circumference of the double row outer ring 6 is composed of the entire inner circumference of the raceway ring.
  • the outer periphery of the double-row inner ring 10 is the entire outer periphery of the raceway ring.
  • the first row of cylindrical rollers 1 is disposed between the first raceway surface 3 of the double row outer ring 6 and the first raceway surface 7 of the double row inner ring 10.
  • the second row cylindrical rollers 2 are disposed between the second raceway surface 4 of the double row outer ring 6 and the second raceway surface 8 of the double row inner ring 10.
  • the middle brim 5 of the double row outer ring 6 is located between two raceway surfaces 3 and 4 that are separated from each other in the axial direction, and includes a protrusion having an inner diameter smaller than both raceway surfaces 3 and 4.
  • the middle collar 9 of the double-row inner ring 10 is located between two raceway surfaces 7 and 8 that are separated in the axial direction, and includes a protrusion having an outer diameter larger than the raceway surfaces 7 and 8.
  • the double-row outer ring 6 does not have a collar other than the middle collar 5 integrally, and has a shape in which the corresponding rows of cylindrical rollers 1 and 2 can be arranged on the raceway surfaces 3 and 4 from the axial direction.
  • the inner diameter of the double-row outer ring 6 between the first raceway surface 3 and the inner peripheral edge closer to the first raceway surface 3 is set to an inner diameter dimension larger than the raceway surface 3.
  • the circumferential groove 13 is formed.
  • the inner diameter dimension between the second raceway surface 4 and the inner peripheral edge closer to the second raceway surface 4 is set to be larger than the raceway surface 4, and a second circumferential groove 14 is formed therebetween.
  • the double-row inner ring 10 does not have a collar other than the middle collar 9 integrally, and has a shape in which the cylindrical rollers 1 and 2 corresponding to the raceway surfaces 7 and 8 can be arranged from the axial direction.
  • the outer diameter of the double-row inner ring 10 between the first raceway surface 7 and the outer peripheral edge closer thereto is set to an outer diameter dimension equal to or less than the raceway surface 7, and the second Between the track surface 8 and the outer peripheral edge closer to the track surface 8 is set to have an outer diameter dimension equal to or smaller than the track surface 8.
  • the first collar ring 11 functions as a collar that axially supports the first row of cylindrical rollers 1 that roll between the first raceway surfaces 3, 7.
  • the ring 12 functions as a collar that supports the second row of cylindrical rollers 2 rolling between the second raceway surfaces 4 and 8 in the axial direction.
  • each of the two collar rings 11 and 12 is an integral member, that is, an annular member formed integrally. Further, the two collar rings 11 and 12 are arranged on the outer circumferential surfaces 15 and 16 including the protrusions 15a and 16a press-fitted in the corresponding circumferential grooves 13 and 14 from the axial direction, respectively, and on the double row inner ring 10 over the entire circumference. And annular wall surfaces 17 and 18 that are axially opposed to the corresponding rows of cylindrical rollers 1 and 2. These collar rings 11 and 12 are manufactured separately from the double-row inner ring 10.
  • the corresponding collar rings 11 and 12 are connected to the double-row outer ring 6 and the double-row outer ring 6.
  • the projections 15a and 16a are press-fitted into the corresponding circumferential grooves 13 and 14, respectively.
  • the annular wall surfaces 17 and 18 are aligned with the double-row inner ring 10 in the axial direction.
  • the collar rings 11 and 12 can support the cylindrical rollers 1 and 2 in the corresponding rows in the axial direction.
  • the cylindrical rollers 1 and 2 in the row, the double row outer ring 6 and the double row inner ring 10 are in a non-separated state. That is, during handling of the full-roller type double row cylindrical roller bearing, when the collar rings 11 and 12 receive the weight of the corresponding row of cylindrical rollers 1 and 2 and the double row inner ring 10, the corresponding protrusions 15a and 16a have corresponding circumferential grooves.
  • the collars 11 and 12 receiving the weight are fixed.
  • each of the two outer peripheral surfaces 15 and 16 is such that the inner ring width of the double-row inner ring 10 is made smaller than the outer ring width of the double-row outer ring 6 due to omission of the collar, and is 1 ⁇ 2 of the difference between the inner ring width and the outer ring width. Since this is possible, the fitting width between the bearing outer side of the outer peripheral surfaces 15 and 16 and the inner periphery of the double-row outer ring 6 can be sufficiently obtained. As described above, when the collar rings 11 and 12 receive the weight of the double-row inner ring 10 or the like, the collar rings 11 and 12 tend to tilt toward the outside of the bearing, but the outer peripheral surfaces 15 and 16 of the collar rings 11 and 12 are.
  • the two side surfaces that define the inner ring width of the double-row inner ring 10 are the alignment points of the annular wall surfaces 17 and 18.
  • the two collar rings 11 and 12 are formed together with the double-row inner ring 10 by abutting against bearing peripheral parts such as a shoulder portion, a spacer, and a housing lid of the shaft supported by the full-roller type double-row cylindrical roller bearing. It is possible to constrain in the direction. Even when the annular wall surfaces 17 and 18 are pushed in the axial direction from the corresponding cylindrical rollers 1 and 2 during the bearing operation, the two collar rings 11 and 12 are fixed to the double-row outer ring 6 and the above-described restraint. Corresponding rows of cylindrical rollers 1 and 2 can be supported in the axial direction.
  • the two collar rings 11 and 12 are set to have the same inner diameter as the double-row inner ring 10.
  • the full-roller double-row cylindrical roller bearing according to the embodiment is as described above, and includes the integral double-row inner ring 10. Therefore, the process of dividing into two inner rings is not necessary. For this reason, there is no waste loss due to poor division of the inner ring, and it is not necessary to mount the inner ring coupling ring by rolling press processing.
  • the full-roller type double row cylindrical roller bearing includes a double row outer ring 6 having a shape in which cylindrical rollers 1 and 2 in a corresponding row can be arranged in the axial direction on the raceway surfaces 3 and 4 on the inner circumference, and an outer circumference.
  • a double row inner ring 10 having a shape in which the corresponding cylindrical rollers 1 and 2 can be arranged from the axial direction. Therefore, in the assembly stage before fixing the collar ring, the two rows of cylindrical rollers 1 and 2 are provided. 2 can be arranged between the corresponding first raceway surfaces 3 and 7 and between the second raceway surfaces 4 and 8, respectively.
  • the full-roller type double row cylindrical roller bearing includes a first collar ring 11 that supports the first row of cylindrical rollers 1 disposed between the first raceway surfaces 3 and 7 in the axial direction, and a second collar ring. Since the second collar ring 12 supporting the second row of cylindrical rollers 2 disposed between the raceway surfaces 4 and 8 in the axial direction is provided, when these two collar rings 11 and 12 are fixed to the double-row outer ring 6, Since each cylindrical ring 11 and 12 can support the corresponding rows of cylindrical rollers 1 and 2 in the axial direction, the two rows of cylindrical rollers 1 and 2, the double row outer ring 6, and the double row inner ring 10 are not separated. be able to.
  • the full-roller type double row cylindrical roller bearing according to the embodiment includes the integral collar rings 11 and 12 fixed by press-fitting to the double row outer ring 6, so that fixing depending on other members such as a retaining ring is possible. It is not necessary and an increase in the number of parts can be avoided.
  • circumferential grooves 13 and 14 are formed on the inner circumference of the double row outer ring 6, and the collar rings 11 and 12 are press-fitted into the circumferential grooves 13 and 14.
  • the collar rings 11 and 12 can be used as a seal, which is also advantageous for preventing an increase in the number of parts.
  • the seals 38, 33 corresponding to the seal grooves 32, 33 of the double row outer ring 31 and the seal grooves 36, 37 of the corresponding collar rings 34, 35 are provided.
  • fitting 39 it is possible to use both a retaining ring and a seal, but one seal is still required to fix one collar ring. Therefore, the full roller type double row cylindrical roller bearing according to the embodiment can reduce the number of parts required for non-separation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

Cette invention concerne un roulement à rouleaux cylindriques à deux rangées du type à rouleaux complémentaires, comprenant une bague externe à deux rangées (6), une bague interne à deux rangées (10) et des bagues de collier (11, 12), qui sont réalisés séparément en une forme intégrée. La bague externe à deux rangées (6) est réalisée en une forme qui présente deux surfaces de piste de roulement (3, 4) et une nervure centrale (5) sur la circonférence interne, des rouleaux cylindriques (1, 2) pouvant être disposés dans les surfaces de piste de roulement respectives (3, 4) à partir de la direction axiale. La bague interne à deux rangées (10) est réalisée en une forme qui présente deux surfaces de piste de roulement (7, 8) et une nervure centrale (9) sur la circonférence externe, les rouleaux cylindriques (1, 2) pouvant être disposés dans les surfaces de piste de roulement respectives (7, 8) à partir de la direction axiale. Les bagues de collier (11,12) sont fixées par ajustement serré dans la bague externe à deux rangées (6) et elles maintiennent une rangée des rouleaux cylindriques (1, 2) dans la direction axiale.
PCT/JP2016/071270 2015-07-22 2016-07-20 Roulement à rouleaux cylindriques à deux rangées du type à rouleaux complémentaires Ceased WO2017014235A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-144931 2015-07-22
JP2015144931A JP2017026030A (ja) 2015-07-22 2015-07-22 総ころ形複列円筒ころ軸受

Publications (1)

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WO2017014235A1 true WO2017014235A1 (fr) 2017-01-26

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Application Number Title Priority Date Filing Date
PCT/JP2016/071270 Ceased WO2017014235A1 (fr) 2015-07-22 2016-07-20 Roulement à rouleaux cylindriques à deux rangées du type à rouleaux complémentaires

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JP (1) JP2017026030A (fr)
WO (1) WO2017014235A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115380174B (zh) * 2020-05-22 2026-01-20 舍弗勒技术股份两合公司 组合式衬管悬挂器轴承

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR599138A (fr) * 1924-06-06 1926-01-05 Perfectionnements aux pignons d'engrenage
JPS5137353A (fr) * 1974-07-26 1976-03-29 Skf Ind Trading & Dev
JPS62500190A (ja) * 1984-09-05 1987-01-22 ヤ−コプ、ウエルナ− 円筒ころ軸受
JPH044523U (fr) * 1990-04-27 1992-01-16
JP2012197882A (ja) * 2011-03-22 2012-10-18 Nsk Ltd 転がり軸受

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR599138A (fr) * 1924-06-06 1926-01-05 Perfectionnements aux pignons d'engrenage
JPS5137353A (fr) * 1974-07-26 1976-03-29 Skf Ind Trading & Dev
JPS62500190A (ja) * 1984-09-05 1987-01-22 ヤ−コプ、ウエルナ− 円筒ころ軸受
JPH044523U (fr) * 1990-04-27 1992-01-16
JP2012197882A (ja) * 2011-03-22 2012-10-18 Nsk Ltd 転がり軸受

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