CN114876960B - Rolling bearing with oil self-transportation and surface integrity and processing method thereof - Google Patents
Rolling bearing with oil self-transportation and surface integrity and processing method thereof Download PDFInfo
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- CN114876960B CN114876960B CN202210402944.6A CN202210402944A CN114876960B CN 114876960 B CN114876960 B CN 114876960B CN 202210402944 A CN202210402944 A CN 202210402944A CN 114876960 B CN114876960 B CN 114876960B
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- outer ring
- inner ring
- raceway
- rolling bearing
- micro
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- 238000005096 rolling process Methods 0.000 title claims abstract description 42
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 50
- 239000004519 grease Substances 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 25
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002105 nanoparticle Substances 0.000 claims abstract description 11
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 10
- 230000008021 deposition Effects 0.000 claims description 8
- 238000004372 laser cladding Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 7
- 239000002775 capsule Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 230000003746 surface roughness Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005429 filling process Methods 0.000 claims description 4
- 239000003350 kerosene Substances 0.000 claims description 3
- 238000010330 laser marking Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 7
- 239000003921 oil Substances 0.000 abstract description 7
- 239000002199 base oil Substances 0.000 abstract description 6
- 238000005461 lubrication Methods 0.000 description 12
- 238000003756 stirring Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 235000013861 fat-free Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012547 material qualification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
-
- 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
Abstract
The invention discloses a rolling bearing with self-transporting grease and surface integrity and a processing method thereof. The raceway surfaces of the inner ring and the outer ring are provided with gradient microstructures, and the microstructures in the gradient microstructures are distributed from sparse to dense along the direction from the raceway edge to the raceway center; each micro-texture is filled with a filler prepared based on lipophilic stainless steel powder or lipophilic ferroferric oxide nanoparticle powder, and the integral surface integrity of the inner ring raceway and the outer ring raceway is ensured from the aspects of macroscopic and microscopic surface morphology. The invention adopts the harder filler to fill the micro-texture to improve the rigidity of the inner ring and the outer ring, the micro-texture is thinned from the edge to the center of the raceway, the filler material and the appearance are different from those of the inner ring and the outer ring of the bearing, the filler has lipophilicity, the base oil with grease accumulated on two sides and separated is spontaneously refluxed to the contact area on the premise of ensuring the rigidity of the inner ring and the outer ring, the state of thin oil film thickness of the contact area of the bearing is improved, and the lubricating effect is improved.
Description
Technical Field
The invention belongs to the technical field of rolling bearings, and particularly relates to a rolling bearing with self-transporting grease and surface integrity and a processing method thereof.
Background
Rolling bearings are one of important parts of rotary machines, and play an important role in industry, and reliability of the rolling bearings directly influences whether equipment can safely and stably run.
The bearing lubrication has obvious influence on the performance and the service life of the bearing, the rolling bearing is usually lubricated by grease, the grease lubrication structure is simple, the oil film strength is high, the loss is difficult, and the sealing is convenient. Grease undergoes two lubrication phases: a stirring stage and a fat-free stage. In the stirring stage, due to the combined action of a bearing structure, a retainer and the like, the lubricating grease can undergo repeated rolling and stirring processes for a period of time at the inlet of a roller contact area, and in the process, the lubricating grease near the contact area is always sufficient and is in a full lubrication state; however, as the working time increases, more and more grease is squeezed out or thrown out of the contact area, the amount of grease around the rollers gradually decreases, and the contact area cannot be sufficiently supplied, resulting in the contact area entering a grease-starved lubrication state. Under the condition of grease lack lubrication, improving the lubrication state of a contact area of a rolling bearing is always a concern of grease lubrication and even bearing industry. When the oil film thickness in the contact area becomes thin, lubrication failure is caused, and the life of the rolling bearing is drastically deteriorated. Therefore, the grease-lack lubrication condition of the contact area of the rolling bearing is improved, so that the lubrication effect of the contact area of the rolling bearing is improved, and the method has important significance for prolonging the service life of the rolling bearing.
Disclosure of Invention
Aiming at the problems that the bearing service life and even the whole machine service life are shortened due to the fact that the interior of a bearing raceway is repeatedly extruded and sheared, and the bearing contact area is in a fat-free lubrication state, the invention provides a rolling bearing with the surface integrity of grease self-transportation and a processing method thereof.
The invention relates to a rolling bearing with oil self-transportation and surface integrity, which comprises an outer ring, an inner ring, a retainer and balls; the surface of the inner ring raceway of the inner ring and the surface of the outer ring raceway of the outer ring are both provided with gradient microstructures, the gradient microstructures are composed of a plurality of rows of micro-texture groups distributed along the axial interval, and each row of micro-texture groups is composed of a plurality of micro-textures distributed along the circumferential interval; along the direction from the edge of the roller path to the center of the roller path, the micro textures in each micro texture group are distributed from sparse to dense; each micro-texture is filled with a filler prepared based on lipophilic stainless steel powder or lipophilic ferroferric oxide nanoparticle powder; the inner ring raceway surface and the outer ring raceway surface are respectively flush with the surfaces of the respective fillers, and the surface waviness profiles of the inner ring raceway and the outer ring raceway are respectively continuous with the surface waviness profiles of the respective fillers; the surface roughness of each filler is consistent with that of the inner ring roller path and the outer ring roller path.
Preferably, the micro-texture is in the shape of a strip, triangle, rectangle, square, circle, ellipse, capsule or sector.
More preferably, the long strip is arranged along the width direction of the raceway; the triangular symmetrical center line is arranged along the width direction of the roller path, and the vertex of the triangle faces the center of the roller path; the rectangular long edge is arranged along the width direction of the rollaway nest; the elliptic long axis is arranged along the width direction of the rollaway nest; the symmetrical center line of the sector is arranged along the width direction of the roller path, and the vertex of the sector faces the edge of the roller path.
More preferably, the capsule comprises two circular arc sections and two straight line sections with equal length, wherein two ends of the two circular arc sections are respectively connected through one straight line section, and the straight line sections are arranged along the width direction of the roller path.
The invention discloses a rolling bearing processing method capable of achieving self-transportation of grease and considering surface integrity, which comprises the following steps:
step one, selecting qualified raw materials, detecting the size and determining the machining allowance; processing an outer ring and an outer ring raceway, and processing an inner ring and an inner ring raceway;
grinding two inner ring end surfaces of the inner ring and two outer ring end surfaces of the outer ring;
grinding the inner surface of the inner ring, and processing the outer surface of the outer ring through a cylindrical grinder;
grinding an inner ring raceway, an outer ring raceway, an inner ring outer surface of the inner ring and an outer ring inner surface of the outer ring;
fixing the inner ring and the outer ring, and arranging gradient microstructures on an inner ring raceway of the inner ring and an outer ring raceway of the outer ring;
filling fillers prepared based on lipophilic ferroferric oxide nano particles or lipophilic stainless steel powder into each micro-texture, so that the fillers on the inner ring roller path protrude out of the inner ring roller path surface, and the fillers on the outer ring roller path protrude out of the outer ring roller path surface;
seventhly, grinding the inner ring raceway of the inner ring and the outer ring raceway of the outer ring after cooling once or twice, wherein each filler protrudes out of the inner ring raceway or the part of the outer ring raceway surface;
step eight, performing ultra-precise grinding on the inner surface and the inner ring raceway of the inner ring, the outer surface and the outer ring raceway of the outer ring and each filler once or twice;
and step nine, cleaning the inner ring and the outer ring.
And step ten, assembling the processed retainer and the balls with the inner ring and the outer ring processed in the step nine.
Preferably, the second step is performed by a surface grinder, the third step is performed by a centerless grinder, the fourth step is performed by an internal grinder, the seventh step is performed by an internal grinder, and the eighth step is performed by an superfinishing machine.
Preferably, step five is processed using a laser marking machine.
Preferably, the filling process adopts a laser cladding deposition technology with synchronous powder feeding as a technical characteristic.
Preferably, step nine cleans the inner and outer rings with kerosene.
Preferably, the assembled rolling bearing is subjected to a demagnetizing treatment in step ten.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, symmetrical gradient microstructures are formed on the surfaces of the inner race and the outer race of the rolling bearing from the edges of the races to the centers of the races by taking the centers of the races as center lines, and the laser cladding deposition technology with synchronous powder feeding as technical characteristics is utilized, fillers prepared based on lipophilic stainless steel powder or lipophilic ferroferric oxide nano-particle powder are filled in each microstructure, after manufacturing is completed, grinding and superfinishing treatment is carried out on the inner race inner surface and the inner race of the inner race, the outer race outer surface and the outer race of the outer race and the parts of the fillers protruding the inner race or the outer race surface, finally, the inner race surface and the outer race surface are respectively flush with the surfaces of the fillers, the surface waviness profile of the inner race and the outer race is respectively continuous with the surface waviness profile of the fillers, and the surface roughness of the inner race, the outer race and the fillers are consistent, so that the integral surface integrity of the inner race and the outer race is ensured from the aspect of macroscopic and microscopic surface morphology; further, the rigidity of the inner ring and the outer ring of the rolling bearing is improved due to the fact that the harder filler is used for filling the micro-texture, and the micro-texture is formed from the edge of the rollaway nest to the center of the rollaway nest, the filler material and the shape are different from those of the inner ring and the outer ring of the bearing, the filler material has lipophilicity, the wettability of the rollaway nest surfaces of the inner ring and the outer ring can be changed on the premise of ensuring the rigidity of the inner ring and the outer ring of the rolling bearing, the wettability plays a leading role on the base oil separated from lubricating grease, the base oil with the separated lubricating grease accumulated on two sides spontaneously flows back to a contact area, the thin oil film thickness state of the contact area of the bearing is improved, the lubricating effect is improved, and the service life of the bearing is prolonged. Furthermore, the laser cladding deposition technology is adopted, so that the forming structure of the lipophilic stainless steel powder or the lipophilic ferroferric oxide nanoparticle powder in the micro-texture is uniform, the mechanical property is good, and the rigidity of the inner ring roller path and the outer ring roller path is further improved after superfine grinding treatment. Furthermore, the lipophilic stainless steel powder or the lipophilic ferroferric oxide nanoparticle powder is adopted to ensure the rigidity of the inner ring and the outer ring and the self-transportation effect of the lubricating grease base oil, which are the characteristics not possessed by other alloys or lubricating materials.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a schematic view of the outer race contacting balls according to the present invention;
FIG. 3 is a perspective view of an inner ring according to the present invention;
FIG. 4 is a schematic view of the inner ring structure of the present invention;
FIG. 5 is a schematic view of a micro-texture of the present invention in the form of a strip;
FIG. 6 is a schematic view of a micro-texture of the present invention in the shape of triangles;
FIG. 7 is a schematic view of a microtexture of the present invention in rectangular form;
FIG. 8 is a schematic representation of the microtexture of the present invention in square;
FIG. 9 is a schematic view of a micro-texture of the present invention in a circular shape;
FIG. 10 is a schematic view of a microtexture of the present invention in an elliptical shape;
FIG. 11 is a schematic representation of the microtexture of the present invention in the form of a capsule;
FIG. 12 is a schematic view of a microtexture of the present invention in a fan shape.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the rolling bearing with the self-transporting grease and the surface integrity comprises an outer ring 1, an inner ring 2, a retainer and balls 3; a plurality of (usually more than 6) balls are movably connected in the retainer, and the balls 3, an outer ring raceway 7 of the outer ring 1 and an inner ring raceway 9 of the inner ring 2 form a rolling friction pair; the balls roll between the inner ring and the outer ring under the action of the retainer; the surfaces of the inner ring raceway and the outer ring raceway are provided with gradient microstructures, the gradient microstructures are composed of a plurality of rows of micro-texture groups distributed along the axial interval, and each row of micro-texture groups is composed of a plurality of micro-textures distributed along the circumferential interval; along the direction from the edge of the rollaway nest (the inner rollaway nest or the outer rollaway nest) (the edges of the two sides are respectively marked as 12 and 14 as shown in figure 4) to the center 13 of the rollaway nest, the micro-textures in each micro-texture group are distributed from sparse to dense (i.e. the intervals between the micro-textures in each micro-texture group are from big to small); filling each micro-texture with a filler prepared based on lipophilic stainless steel powder or lipophilic ferroferric oxide nanoparticle powder, wherein the filling process is preferably realized by adopting a laser cladding deposition technology (LCD, laser cladding deposition) with synchronous powder feeding as a technical characteristic; the inner ring raceway surface and the outer ring raceway surface are respectively flush with the surfaces of the respective fillers, and the surface waviness profiles of the inner ring raceway and the outer ring raceway are respectively continuous with the surface waviness profiles of the respective fillers; the surface roughness of each filler is consistent with that of the inner ring roller path and the outer ring roller path.
The micro-texture can be selected from one of the following shapes: elongated (as shown in fig. 5), triangular (as shown in fig. 6), rectangular (as shown in fig. 7), square (as shown in fig. 8), circular (as shown in fig. 9), elliptical (as shown in fig. 10), capsule (as shown in fig. 11), and fan-shaped (as shown in fig. 12); preferably, the elongated long edges are arranged in the track width direction as shown in fig. 5; the triangle symmetry center line as shown in fig. 6 is arranged in the track width direction, and the vertex of the triangle is directed toward the track center; the rectangular long edges shown in fig. 7 are arranged along the width direction of the raceway; the oval major axis is arranged in the track width direction as shown in fig. 10; the capsule shape shown in fig. 11 is composed of two circular arc sections and two straight line sections with equal length, wherein two ends of the two circular arc sections are respectively connected through one straight line section, and the straight line sections are arranged along the width direction of the roller path; the centre line of symmetry of the sector is arranged in the track width direction as shown in figure 12 with the apex of the sector facing the track edge.
The invention discloses a rolling bearing processing method capable of achieving self-transportation of grease and considering surface integrity, which comprises the following steps:
step one, selecting qualified raw materials (formed circular ring materials for inner and outer rings), detecting the size, and determining the machining allowance; the outer ring and the outer ring roller path, and the inner ring roller path are processed through a lathe;
step two, processing two inner ring end surfaces 11 of an inner ring and two outer ring end surfaces 6 of an outer ring through a surface grinder;
step three, as shown in fig. 2 and 3, processing an inner ring surface 10 of the inner ring through a centerless grinder, and processing an outer ring surface 4 of the outer ring through a cylindrical grinder;
processing an inner ring raceway 9, an outer ring raceway 7, an inner ring outer surface 8 of the inner ring and an outer ring inner surface 5 of the outer ring through an internal grinder;
fixing the inner ring and the outer ring, and forming gradient microstructures on an inner ring raceway of the inner ring and an outer ring raceway of the outer ring by using a laser marking machine;
filling fillers prepared based on lipophilic ferroferric oxide nano particles or lipophilic stainless steel powder into each micro-texture, so that the fillers on the inner ring roller path protrude out of the inner ring roller path surface, and the fillers on the outer ring roller path protrude out of the outer ring roller path surface;
step seven, grinding and cooling (natural cooling or air cooling) the inner ring raceway of the inner ring, the outer ring raceway of the outer ring and parts of the fillers protruding out of the surfaces of the inner ring raceway or the outer ring raceway twice through an internal grinding machine;
step eight, ultra-precisely grinding the inner surface and the inner ring raceway of the inner ring, the outer surface and the outer ring raceway of the outer ring and each filler twice through an ultra-fine machine, and finally enabling the surfaces of the inner ring raceway and the outer ring raceway to be respectively level with the surfaces of the fillers, wherein the surface waviness profiles of the inner ring raceway and the outer ring raceway are respectively continuous with the surface waviness profiles of the fillers; the surface roughness of each filler is consistent with that of the inner ring roller path and the outer ring roller path;
and step nine, cleaning the inner ring and the outer ring by using kerosene.
And step ten, assembling the processed retainer and the balls with the inner ring and the outer ring processed in the step nine, and demagnetizing the assembled rolling bearing.
As a preferred embodiment, the criteria for raw material qualification are: the raw material has no perforation or crack, and the raw material with perforation or crack is removed.
As a preferred embodiment, the filling process adopts a laser cladding deposition technology which takes synchronous powder feeding as a technical characteristic.
According to the invention, symmetrical gradient microstructures are formed on the surfaces of the inner race and the outer race of the rolling bearing from the edges of the races to the centers of the races by taking the centers of the races as center lines, and the laser cladding deposition technology with synchronous powder feeding as technical characteristics is utilized, fillers prepared based on lipophilic stainless steel powder or lipophilic ferroferric oxide nano-particle powder are filled in each microstructure, after manufacturing is completed, grinding and superfinishing treatment is carried out on the inner race inner surface and the inner race of the inner race, the outer race outer surface and the outer race of the outer race and the parts of the fillers protruding the inner race or the outer race surface, finally, the inner race surface and the outer race surface are respectively flush with the surfaces of the fillers, the surface waviness profile of the inner race and the outer race is respectively continuous with the surface waviness profile of the fillers, and the surface roughness of the inner race, the outer race and the fillers are consistent, so that the integral surface integrity of the inner race and the outer race is ensured from the aspect of macroscopic and microscopic surface morphology; further, the rigidity of the inner ring and the outer ring of the rolling bearing is improved due to the fact that the harder filler is used for filling the micro-texture, and the micro-texture is formed from the edge of the rolling path to the center of the rolling path from sparse to dense, the filler material and the shape are different from those of the inner ring and the outer ring of the bearing, the filler material has lipophilicity, the wettability of the surfaces of the rolling paths of the inner ring and the outer ring can be changed on the premise of ensuring the rigidity of the inner ring and the outer ring of the rolling bearing, the wettability plays a leading role on the base oil separated from lubricating grease, the base oil which is accumulated on two sides and separated from lubricating grease is spontaneously refluxed to a contact area, so that the thin oil film thickness state of the contact area of the bearing is improved, the lubricating effect is improved, and the service life of the bearing is prolonged.
Claims (10)
1. The utility model provides a rolling bearing of oil self-transporting compromise surface integrity, includes outer lane, inner circle, holder and ball, its characterized in that:
the surface of the inner ring raceway of the inner ring and the surface of the outer ring raceway of the outer ring are both provided with gradient microstructures, the gradient microstructures are composed of a plurality of rows of micro-texture groups distributed along the axial interval, and each row of micro-texture groups is composed of a plurality of micro-textures distributed along the circumferential interval; along the direction from the edge of the roller path to the center of the roller path, the micro textures in each micro texture group are distributed from sparse to dense; each micro-texture is filled with a filler prepared based on lipophilic stainless steel powder or lipophilic ferroferric oxide nanoparticle powder; the inner ring raceway surface and the outer ring raceway surface are respectively flush with the surfaces of the respective fillers, and the surface waviness profiles of the inner ring raceway and the outer ring raceway are respectively continuous with the surface waviness profiles of the respective fillers; the surface roughness of each filler is consistent with that of the inner ring roller path and the outer ring roller path.
2. The rolling bearing of claim 1 wherein the self-transport of grease compromise surface integrity, wherein: the micro-texture is strip-shaped, triangular, rectangular, square, round, oval, capsule-shaped or fan-shaped.
3. The rolling bearing of claim 2 wherein the self-transport of grease compromise surface integrity, wherein: the strip-shaped long edge is arranged along the width direction of the rollaway nest; the triangular symmetrical center line is arranged along the width direction of the roller path, and the vertex of the triangle faces the center of the roller path; the rectangular long edge is arranged along the width direction of the rollaway nest; the elliptic long axis is arranged along the width direction of the rollaway nest; the symmetrical center line of the sector is arranged along the width direction of the roller path, and the vertex of the sector faces the edge of the roller path.
4. The rolling bearing of claim 2 wherein the self-transport of grease compromise surface integrity, wherein: the capsule comprises two circular arc sections and two straight line sections with equal length, wherein two ends of the two circular arc sections are respectively connected through one straight line section, and the straight line sections are arranged along the width direction of the roller path.
5. A rolling bearing processing method taking the surface integrity into consideration during self-transportation of grease is characterized by comprising the following steps of: the method comprises the following steps:
step one, selecting qualified raw materials, detecting the size and determining the machining allowance; processing an outer ring and an outer ring raceway, and processing an inner ring and an inner ring raceway;
grinding two inner ring end surfaces of the inner ring and two outer ring end surfaces of the outer ring;
grinding the inner surface of the inner ring, and processing the outer surface of the outer ring through a cylindrical grinder;
grinding an inner ring raceway, an outer ring raceway, an inner ring outer surface of the inner ring and an outer ring inner surface of the outer ring;
fixing the inner ring and the outer ring, and arranging gradient microstructures on an inner ring raceway of the inner ring and an outer ring raceway of the outer ring;
filling fillers prepared based on lipophilic ferroferric oxide nano particles or lipophilic stainless steel powder into each micro-texture, so that the fillers on the inner ring roller path protrude out of the inner ring roller path surface, and the fillers on the outer ring roller path protrude out of the outer ring roller path surface;
seventhly, grinding the inner ring raceway of the inner ring and the outer ring raceway of the outer ring after cooling once or twice, wherein each filler protrudes out of the inner ring raceway or the part of the outer ring raceway surface;
step eight, performing ultra-precise grinding on the inner surface and the inner ring raceway of the inner ring, the outer surface and the outer ring raceway of the outer ring and each filler once or twice;
step nine, cleaning the inner ring and the outer ring;
and step ten, assembling the processed retainer and the balls with the inner ring and the outer ring processed in the step nine.
6. The method for processing the rolling bearing with the self-transporting grease and the surface integrity as claimed in claim 5, which is characterized in that: the method comprises the following steps of machining through a surface grinding machine, machining through a centerless grinding machine, machining through a internal grinding machine, and machining through a superfinishing machine.
7. The method for processing the rolling bearing with the self-transporting grease and the surface integrity as claimed in claim 5, which is characterized in that: and fifthly, processing by using a laser marking machine.
8. The method for processing the rolling bearing with the self-transporting grease and the surface integrity as claimed in claim 5, which is characterized in that: the filling process adopts a laser cladding deposition technology with synchronous powder feeding as a technical characteristic.
9. The method for processing the rolling bearing with the self-transporting grease and the surface integrity as claimed in claim 5, which is characterized in that: and step nine, cleaning the inner ring and the outer ring by using kerosene.
10. The method for processing the rolling bearing with the self-transporting grease and the surface integrity as claimed in claim 5, which is characterized in that: and step ten, demagnetizing the assembled rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210402944.6A CN114876960B (en) | 2022-04-18 | 2022-04-18 | Rolling bearing with oil self-transportation and surface integrity and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210402944.6A CN114876960B (en) | 2022-04-18 | 2022-04-18 | Rolling bearing with oil self-transportation and surface integrity and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114876960A CN114876960A (en) | 2022-08-09 |
| CN114876960B true CN114876960B (en) | 2024-04-09 |
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| CN202210402944.6A Active CN114876960B (en) | 2022-04-18 | 2022-04-18 | Rolling bearing with oil self-transportation and surface integrity and processing method thereof |
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| CN103671556A (en) * | 2012-09-20 | 2014-03-26 | 株式会社捷太格特 | Rolling bearing |
| CN103671555A (en) * | 2012-09-19 | 2014-03-26 | 株式会社捷太格特 | Rolling bearing |
| CN110259830A (en) * | 2019-07-12 | 2019-09-20 | 广州大学 | A kind of raceway face has the ball bearing and its lubricating method of micro- texture |
| CN112112889A (en) * | 2020-09-23 | 2020-12-22 | 杭州电子科技大学 | Micro-texture deep groove ball bearing with auxiliary contact area lubrication function and inner and outer ring machining method thereof |
| CN112112888A (en) * | 2020-09-23 | 2020-12-22 | 杭州电子科技大学 | Micro-texture self-driven oil drop grease lubrication ball bearing and micro-texture processing method thereof |
| CN215333966U (en) * | 2021-07-07 | 2021-12-28 | 哈尔滨理工大学 | Self-lubricating separator retainer micro-texture rolling bearing |
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2022
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| CN102226459A (en) * | 2011-06-03 | 2011-10-26 | 江苏大学 | Method for self-lubricating treatment of laser micro-texture of bearing |
| CN103671555A (en) * | 2012-09-19 | 2014-03-26 | 株式会社捷太格特 | Rolling bearing |
| CN103671556A (en) * | 2012-09-20 | 2014-03-26 | 株式会社捷太格特 | Rolling bearing |
| CN110259830A (en) * | 2019-07-12 | 2019-09-20 | 广州大学 | A kind of raceway face has the ball bearing and its lubricating method of micro- texture |
| CN112112889A (en) * | 2020-09-23 | 2020-12-22 | 杭州电子科技大学 | Micro-texture deep groove ball bearing with auxiliary contact area lubrication function and inner and outer ring machining method thereof |
| CN112112888A (en) * | 2020-09-23 | 2020-12-22 | 杭州电子科技大学 | Micro-texture self-driven oil drop grease lubrication ball bearing and micro-texture processing method thereof |
| CN215333966U (en) * | 2021-07-07 | 2021-12-28 | 哈尔滨理工大学 | Self-lubricating separator retainer micro-texture rolling bearing |
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