CN114857179A - Assembly method suitable for small and medium-sized double-row groove angular contact bearing - Google Patents
Assembly method suitable for small and medium-sized double-row groove angular contact bearing Download PDFInfo
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- CN114857179A CN114857179A CN202210373122.XA CN202210373122A CN114857179A CN 114857179 A CN114857179 A CN 114857179A CN 202210373122 A CN202210373122 A CN 202210373122A CN 114857179 A CN114857179 A CN 114857179A
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- bearing
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- pad
- inner ring
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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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
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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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/06—Placing rolling bodies in cages or bearings
- F16C43/065—Placing rolling bodies in cages or bearings in cages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention provides an assembly method suitable for a small and medium-sized double-row groove angular contact bearing, which can realize the assembly of the small and medium-sized angular contact bearing with a double-row groove bearing outer ring and two bearing inner rings by designing a plurality of special assembly tools; the tool is simple in structure and convenient to machine, the assembling method of the bearing is simple and easy to learn, the independent operation can be rapidly realized by operators conveniently, and the assembling efficiency is high.
Description
Technical Field
The invention belongs to the technical field of bearing assembly, and particularly relates to an assembly method suitable for a small and medium-sized double-row groove angular contact bearing.
Background
The universal small and medium-sized angular contact bearing is only provided with a single-row raceway generally, a retainer and steel balls are placed in a bearing outer ring, then the bearing outer ring is heated, a bearing inner ring is slightly pressed into the outer ring in a hot pressing mode, and after the bearing is naturally cooled, the bearing is assembled into a whole through a self locking port.
With the continuous development of the technology, according to the requirements of market users, a double-row groove type small and medium-sized angular contact bearing is provided, wherein the outer ring of the bearing is wider and provided with two rows of raceways and two inner rings; when the outer ring of the bearing is provided with a slope, the bearing can be installed into a whole by heating the outer ring and then hot-pressing according to a conventional single-row groove angular contact bearing assembling method; however, when the inner ring has a slope, the bearing cannot be assembled into a set by the above-described conventional assembling method.
Disclosure of Invention
In order to solve the problems, the invention provides an assembly method suitable for a small and medium-sized double-row groove angular contact bearing, and the assembly method can solve the problem that a set of small and medium-sized double-row groove angular contact bearing cannot be assembled according to a normal assembly method when an inner ring of the bearing has a slope.
In order to achieve the purpose, the invention adopts the technical scheme that: an assembly method suitable for small and medium-sized double-row groove angular contact bearings comprises the following steps:
step 1, placing a bearing outer ring on a platform, placing a tool ball-loading pad with a reset function on the inner side of the bearing outer ring, placing a first retainer on the top of the tool ball-loading pad, and loading a steel ball; then heating the outer ring of the bearing, pressing the slope of the first inner ring downwards into the upper half part of the outer ring of the bearing, and finishing the assembly of the first inner ring after natural cooling;
step 2, reversing the bearing assembled by the first inner ring, placing the assembled half side on a platform, horizontally placing a second retainer and a second inner ring on the tops of the first retainer and the first inner ring which are assembled, and then installing a tool inner guide table on the inner side of the second inner ring;
step 3, the bearing after the step 2 is wholly reversed and placed on an outer bearing pad of a tool for supporting an outer ring of the bearing and a second retainer, the outer bearing pad of the tool is in a step-platform-shaped structure, an inner step for receiving a falling second inner ring and an inner guide platform of the tool is arranged on the inner side of the outer bearing pad, a slope for guiding a steel ball to be installed into the second retainer is arranged on one side, facing the first inner ring, of the inner guide platform of the tool, and when the second inner ring and the inner guide platform of the tool fall onto the inner step after the bearing is reversed, the steel ball is installed into a pocket hole of the second retainer through the slope on the inner guide platform of the tool;
and 4, reversing the bearing and the tool outer bearing pad after the step 3, then sequentially removing the tool outer bearing pad and the tool inner guide table, putting the bearing on a heating platform, heating the bearing outer ring, and pressing the second inner ring into the bearing outer ring in a hot pressing mode, so that the assembly of the double-row-groove angular contact bearing is completed.
Furthermore, the outer side of the top of the tool ball mounting pad is provided with a step for placing a first retainer.
Further, the tool ball mounting pad comprises a base, a supporting table and a spring arranged between the base and the supporting table.
Further, the outer side of the outer bearing pad of the tool is provided with an outer step for placing a bearing outer ring, and the top of the outer step is provided with a small boss for supporting the second retainer.
Furthermore, the material used by the tool ball mounting pad is a non-metallic material capable of resisting the high temperature of not less than 150 ℃, or a metallic material with a thermal expansion coefficient smaller than that of the bearing outer ring/first and second inner ring materials.
Compared with the prior art, the invention has the beneficial effects that: the assembling method solves the problem that the novel outer ring double-row groove angular contact bearing cannot be assembled according to a conventional assembling method; in addition, the special tool used during installation is simple in structure and easy to machine, the using method is simple and easy to learn, an operator can quickly master the assembling method, independent operation is achieved, and high assembling efficiency is achieved.
Drawings
FIG. 1 is an assembly view of the present invention with a first inner race pressed into the upper half of the outer race of a bearing;
FIG. 2 is a schematic view showing a state where a second inner race and an inner guide table of the tooling are placed in an outer race of a bearing;
FIG. 3 is a schematic view showing a state where the bearing is inverted as a whole and placed on an outer support pad of the tool;
fig. 4 is a schematic assembly view of the second inner race pressed into the bearing outer race.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.
The invention provides an assembly method suitable for a small and medium-sized double-row groove angular contact bearing, wherein an outer ring of the bearing is a double-row groove, two inner rings are arranged, and the inner rings are provided with slopes, and the assembly process comprises the following specific contents:
firstly, referring to fig. 1, firstly, a bearing outer ring 01 is placed on a platform, then a tooling ball mounting pad is placed at the inner diameter of the bearing outer ring 01, the tooling ball mounting pad consists of three parts, namely a supporting table 201, a base 202 and a spring 203, and the outer side of the top of the supporting table 201 is provided with a step for placing a first holding frame 06; placing the first holder 06 on the outer step at the landing of the supporting table 201, and respectively loading the steel balls 04 into pockets of the first holder 06 according to the number of the steel balls 04; placing the slope of the first inner ring 02 downwards on a platform of the supporting table 201, then heating the bearing outer ring 01, installing the first inner ring 02 into the bearing outer ring 01 in a hot pressing mode, and finishing the assembly of one inner ring after the first inner ring is naturally cooled;
further, the spring 203 in the tool ball mounting pad is used for connecting the supporting table 201 and the base 202, and the height h2 of the spring 203 is smaller than the distance h1 from the upper end face of the first inner ring 02 placed on the supporting table 201 to the upper end face of the bearing outer ring 01, otherwise, the first inner ring 02 cannot be pressed into the bearing outer ring 01 in a hot mode; the outer step height h2 of the bearing table 201 is determined according to the position of the pocket on the cage 06 placed thereon, and should be slightly higher than the lower surface of the pocket so as not to allow the steel ball to roll out therefrom.
Further, the outer diameters Φ d2 of the support base 201 and the base 202 are the same, and a certain clearance needs to be provided with the inner diameter of the bearing outer ring 01; the outer diameter phid 2 of the outer step on the supporting table 201 is slightly smaller than the inner diameter of the first holder 06 to avoid interference during use.
Furthermore, the material used for the tool ball mounting pad needs to be a non-metal material capable of resisting high temperature (150 ℃) or a metal material with a thermal expansion coefficient smaller than that of the bearing ring material, so that normal installation is prevented from being influenced when the bearing outer ring 01 is hot-pressed.
Referring to fig. 2, the bearing after the first step of assembly is turned upside down, then the second retainer 16 and the second inner ring 22 of the bearing are placed on the assembled first retainer 06 and the first inner ring 02, and then a tooling inner guide table 30 is installed on the inner side of the second inner ring 22;
referring to fig. 3, firstly, a special tool external support pad 10 is placed on a platform, then the bearing on which the second inner ring 22 and the second retainer 16 are placed is turned over integrally, the bearing outer ring 01 is placed on an outer step of the tool external support pad 10, the second retainer 16 falls on a small boss on the outer step of the tool external support pad 10, and the second inner ring 22 and the tool internal guide table 30 fall on an inner step of the tool external support pad 10 together; and finally, the steel balls 04 are respectively arranged in the pocket holes of the second retainer 16 according to the required quantity through the slope on the inner guide table 30.
With further reference to fig. 2, the outer diameter phid 3 of the guide table 30 in the tooling is set according to the inner diameter phid of the second inner ring 22 of the bearing, so that a small gap is formed, and the tightness is proper during installation; the inner diameter phi d4 of the guide table 30 in the tool ensures that the tool has certain thickness and strength and is not easy to deform in use.
With further reference to fig. 3, the outer diameter phid 1 of the tool outer support pad 10 needs to be slightly larger than the outer diameter phid of the bearing outer ring 01, so as to ensure that the bearing outer ring 01 can be stably placed thereon; the size of the step inner diameter phi D2 of the tool outer supporting pad 10 is larger than the size of the inner diameter of the second retainer 16, and a certain gap is formed between the step inner diameter phi D2 and the size of the flange of the second inner ring 22, so that the tool outer supporting pad can be normally used; the inner diameter of the step phi D3 of the outer tool bearing pad 10 ensures that the second inner ring 22 and the inner tool guide table 30 can be stably placed thereon.
Further, the outer step height H2 of the tool outer support pad 10 needs to ensure that the gap H3 between the second inner ring 22 and the first inner ring 02 can allow the steel ball 04 to easily pass through; the height H1 of the boss on the outer step of the tool outer support pad 10 is set according to the position of the second retainer 16 when in design, and the pocket on the second retainer 16 is basically aligned with the center of the raceway of the bearing outer ring 01; after the size of the tool external supporting pad 10 is determined, the total height H of the tool external supporting pad ensures that the tool external supporting pad has certain thickness and strength and is convenient to process.
Further, the height of the outer edge of the guide table 30 in the tool can be flush with the height of the second inner ring 22, and the slope angle of the guide table is convenient for the installation of the steel ball 04 according to the actual use condition, so that the total height h of the guide table can be determined.
Finally, referring to fig. 4, the whole mounted bearing is reversed together with the outer bearing pad 10 and the inner guide table 30, the outer bearing pad 10 is taken out, the inner guide table 30 is taken out, the outer ring 01 of the bearing is heated, the second inner ring 22 of the bearing is hot-pressed, and the assembly is completed after the second inner ring is naturally cooled.
In conclusion, the assembly method of the invention can realize the assembly of the small and medium-sized angular contact bearing with the bearing outer ring being a double-row groove and two bearing inner rings by designing a plurality of special assembly tools; the tool is simple in structure and convenient to machine, the assembling method of the bearing is simple and easy to learn, the independent operation can be rapidly realized by operators conveniently, and the assembling efficiency is high.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An assembling method suitable for small and medium-sized double-row groove angular contact bearings is characterized by comprising the following steps:
step 1, placing a bearing outer ring on a platform, placing a tool ball-loading pad with a reset function on the inner side of the bearing outer ring, placing a first retainer on the top of the tool ball-loading pad, and loading a steel ball; then heating the outer ring of the bearing, pressing the slope of the first inner ring downwards into the upper half part of the outer ring of the bearing, and finishing the assembly of the first inner ring after natural cooling;
step 2, reversing the bearing assembled by the first inner ring, placing the assembled half side on a platform, horizontally placing a second retainer and a second inner ring on the tops of the first retainer and the first inner ring which are assembled, and then installing a tool inner guide table on the inner side of the second inner ring;
step 3, the bearing after the step 2 is wholly reversed and placed on an outer bearing pad of a tool for supporting an outer ring of the bearing and a second retainer, the outer bearing pad of the tool is in a step-platform-shaped structure, an inner step for receiving a falling second inner ring and an inner guide platform of the tool is arranged on the inner side of the outer bearing pad, a slope for guiding a steel ball to be installed into the second retainer is arranged on one side, facing the first inner ring, of the inner guide platform of the tool, and when the second inner ring and the inner guide platform of the tool fall onto the inner step after the bearing is reversed, the steel ball is installed into a pocket hole of the second retainer through the slope on the inner guide platform of the tool;
and 4, reversing the bearing and the tool outer bearing pad after the step 3, then sequentially removing the tool outer bearing pad and the tool inner guide table, putting the bearing on a heating platform, heating the bearing outer ring, and pressing the second inner ring into the bearing outer ring in a hot pressing mode, so that the assembly of the double-row-groove angular contact bearing is completed.
2. The assembling method for the small and medium-sized double-row groove angular contact bearing according to claim 1, wherein the outer side of the top of the tool ball mounting pad is provided with a step for placing the first retaining frame.
3. The assembling method suitable for the small and medium-sized double-row groove angular contact bearing according to claim 2, wherein the tool ball mounting pad comprises a base, a supporting table and a spring arranged between the base and the supporting table.
4. The assembling method suitable for the small and medium-sized double-row groove angular contact bearing is characterized in that an outer step for placing a bearing outer ring is arranged on the outer side of the tool outer bearing pad, and a small boss for supporting the second retainer is arranged at the top of the outer step.
5. The assembling method suitable for the small and medium-sized double-row groove angular contact bearing as claimed in claim 1, wherein the material used for the tool ball-mounting pad is a non-metallic material capable of withstanding a high temperature of not less than 150 ℃, or a metallic material having a thermal expansion coefficient smaller than that of the bearing outer ring/first and second inner ring materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210373122.XA CN114857179B (en) | 2022-04-11 | 2022-04-11 | Assembly method suitable for medium-small double-row groove angular contact bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210373122.XA CN114857179B (en) | 2022-04-11 | 2022-04-11 | Assembly method suitable for medium-small double-row groove angular contact bearing |
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| Publication Number | Publication Date |
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| CN114857179A true CN114857179A (en) | 2022-08-05 |
| CN114857179B CN114857179B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210373122.XA Active CN114857179B (en) | 2022-04-11 | 2022-04-11 | Assembly method suitable for medium-small double-row groove angular contact bearing |
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| JP2003156061A (en) * | 2001-11-22 | 2003-05-30 | Nsk Ltd | Angular ball bearing assembling method and angular ball bearing |
| CN202082301U (en) * | 2011-05-17 | 2011-12-21 | 洛阳润环电机轴承有限公司 | Angular contact ball bearing assembling mould |
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| CN103216531A (en) * | 2012-01-20 | 2013-07-24 | 株式会社捷太格特 | A manufacturing method of a shaft component of an antifriction bearing device used for wheels |
| CN105526269A (en) * | 2016-02-01 | 2016-04-27 | 常州东风轴承有限公司 | Ball mounting method for double-row angular contact ball bearing |
| CN205978134U (en) * | 2016-08-08 | 2017-02-22 | 洛阳轴研科技股份有限公司 | Inseparable type angular contact ball bearing's assembly fixture |
| CN206943215U (en) * | 2017-07-07 | 2018-01-30 | 山东华泰轴承制造有限公司 | A kind of high temperature resistant double-row angular contact bal bearing |
| CN107806475A (en) * | 2017-10-24 | 2018-03-16 | 洛阳轴承研究所有限公司 | Angular contact ball bearing assembly tool |
| CN208528439U (en) * | 2018-05-22 | 2019-02-22 | 中路轨道设备（常熟）有限公司 | A kind of heat moves back the tooling of cylindrical bearing inner ring |
| CN210799770U (en) * | 2019-09-05 | 2020-06-19 | 人本集团有限公司 | Inner ring assembly fixture of cylindrical roller bearing |
| DE102019112391A1 (en) * | 2019-05-13 | 2020-11-19 | Schaeffler Technologies AG & Co. KG | Disassembly of tandem angular contact ball bearings |
| DE102020205860A1 (en) * | 2020-05-11 | 2021-11-11 | Aktiebolaget Skf | Bearing arrangement |
| CN113864348A (en) * | 2021-10-13 | 2021-12-31 | 贵州天马虹山轴承有限公司 | Double-row angular contact ball bearing sleeve dismounting method with mounting edge |
-
2022
- 2022-04-11 CN CN202210373122.XA patent/CN114857179B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU480862A1 (en) * | 1973-12-29 | 1975-08-15 | Всесоюзный Научно-Исследовательский Конструкторско-Технологический Институт Подшипниковой Промышленности | The method of completing parts for the assembly of angular contact ball bearings |
| JP2003156061A (en) * | 2001-11-22 | 2003-05-30 | Nsk Ltd | Angular ball bearing assembling method and angular ball bearing |
| CN202082301U (en) * | 2011-05-17 | 2011-12-21 | 洛阳润环电机轴承有限公司 | Angular contact ball bearing assembling mould |
| CN102705380A (en) * | 2012-01-19 | 2012-10-03 | 洛阳轴研科技股份有限公司 | Simple assembly method for miniature ball bearings |
| CN103216531A (en) * | 2012-01-20 | 2013-07-24 | 株式会社捷太格特 | A manufacturing method of a shaft component of an antifriction bearing device used for wheels |
| CN105526269A (en) * | 2016-02-01 | 2016-04-27 | 常州东风轴承有限公司 | Ball mounting method for double-row angular contact ball bearing |
| CN205978134U (en) * | 2016-08-08 | 2017-02-22 | 洛阳轴研科技股份有限公司 | Inseparable type angular contact ball bearing's assembly fixture |
| CN206943215U (en) * | 2017-07-07 | 2018-01-30 | 山东华泰轴承制造有限公司 | A kind of high temperature resistant double-row angular contact bal bearing |
| CN107806475A (en) * | 2017-10-24 | 2018-03-16 | 洛阳轴承研究所有限公司 | Angular contact ball bearing assembly tool |
| CN208528439U (en) * | 2018-05-22 | 2019-02-22 | 中路轨道设备（常熟）有限公司 | A kind of heat moves back the tooling of cylindrical bearing inner ring |
| DE102019112391A1 (en) * | 2019-05-13 | 2020-11-19 | Schaeffler Technologies AG & Co. KG | Disassembly of tandem angular contact ball bearings |
| CN210799770U (en) * | 2019-09-05 | 2020-06-19 | 人本集团有限公司 | Inner ring assembly fixture of cylindrical roller bearing |
| DE102020205860A1 (en) * | 2020-05-11 | 2021-11-11 | Aktiebolaget Skf | Bearing arrangement |
| CN113864348A (en) * | 2021-10-13 | 2021-12-31 | 贵州天马虹山轴承有限公司 | Double-row angular contact ball bearing sleeve dismounting method with mounting edge |
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| Publication number | Publication date |
|---|---|
| CN114857179B (en) | 2023-06-27 |
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