CN220540104U - Ultra-thin high-temperature thrust ball bearing - Google Patents
Ultra-thin high-temperature thrust ball bearing Download PDFInfo
- Publication number
- CN220540104U CN220540104U CN202320708648.9U CN202320708648U CN220540104U CN 220540104 U CN220540104 U CN 220540104U CN 202320708648 U CN202320708648 U CN 202320708648U CN 220540104 U CN220540104 U CN 220540104U
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- China
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- stainless steel
- bearing
- bowl shape
- shaft ring
- rolling element
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- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 75
- 239000010935 stainless steel Substances 0.000 claims abstract description 75
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 238000005461 lubrication Methods 0.000 claims description 7
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000004544 sputter deposition Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 abstract description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004696 Poly ether ether ketone Substances 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229920002530 polyetherether ketone Polymers 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides an ultrathin high-temperature thrust ball bearing. The stainless steel rolling element is symmetrically arranged with the stainless steel shaft ring, the stainless steel shaft ring is in fit with the front and rear cabin inner parts of the ballistic trajectory for bearing an axial load bearing structure, the stainless steel shaft ring can bear axial force together with the front and rear cabin shaft of the ballistic trajectory in a fit manner, the angle of the pocket edges of the stainless steel shaft ring and the stainless steel shaft ring is smaller than 25 degrees, and the stainless steel rolling element is arranged in the bowl-shaped retainer structure and enables the stainless steel shaft ring, the stainless steel shaft ring and the bowl-shaped retainer structure to rotate simultaneously. The utility model can meet the requirements of national special large projects, the special bearing has high standard requirements on performance, the whole bearing is optimized, the axial bearing capacity is high, the speed performance is good, the high temperature resistance and the impact resistance are realized, and various technical indexes reach the international level and replace import.
Description
Technical Field
The utility model is used for isolating the rotating speed between the front cabin section and the rear cabin section.
Background
With the gradual improvement of the use requirement of a new intelligent numerical control machine tool spindle in the machine tool industry, the demand of the precision bearing of the market diversified machine tools increases year by year, and the current market rapidly requires ultrathin thickness of 5mm and working temperature of 200 ℃; the starting torque requirement of the special bearing with the service life of 5-10 minutes reaches 5Nm, because the ejection of the cartridge case at the moment of the firing requires a great impact force +.! How to solve the problem that the ultra-thin, high-temperature and thrust ball bearing replaces the import in China becomes the urgent problem to be solved in the bearing industry.
Disclosure of Invention
The utility model aims to provide the ultrathin high-temperature thrust ball bearing which can meet the requirements of national special large projects and has the special bearing on high-standard requirements of performance, the whole bearing is optimized, the axial bearing capacity is high, the speed performance is good, the high-temperature resistance and the impact resistance are realized, and various technical indexes reach international level and replace import.
The purpose of the utility model is realized in the following way: the stainless steel retainer comprises a stainless steel seat ring, a stainless steel shaft ring, stainless steel rolling bodies and a bowl-shaped retainer structure, wherein the stainless steel seat ring and the stainless steel shaft ring are symmetrically arranged, the stainless steel seat ring is favorable for bearing axial load bearing structures and installing and combining of inner parts of a front cabin and a rear cabin of a trajectory, the stainless steel shaft ring can bear axial force when being installed and matched with the front cabin and the rear cabin of the trajectory, the angle of the pocket edges of the stainless steel seat ring and the stainless steel shaft ring is smaller than 25 degrees, the stainless steel rolling bodies are arranged in the bowl-shaped retainer structure and enable the stainless steel seat ring, the stainless steel shaft ring and the bowl-shaped retainer structure to rotate simultaneously, 8 pockets are evenly arranged on the bowl-shaped retainer structure, the width of a pocket edge beam of the bowl-shaped retainer structure is narrower than the radius of the pocket, the height of the bowl-shaped retainer structure is larger than the radius of the stainless steel rolling bodies and smaller than the diameter of the stainless steel rolling bodies, the inner diameter of the bowl-shaped retainer structure is integral multiple of the diameter of the pocket diameter, and a molybdenum disulfide sputtering lubrication layer is arranged between the stainless steel rolling bodies and the bowl-shaped retainer.
The utility model has the following technical characteristics:
the stainless steel seat ring and the stainless steel shaft ring adopt stainless steel 9Cr18-GB3086 material ferrules and stainless steel rolling bodies, and are super-temperature resistant, wear-resistant, corrosion-resistant and impact-resistant; molybdenum disulfide is sputtered and lubricated, and has high bearing capacity and high rigidity in the axial direction;
the tolerance grade P5 can ensure that the bearing has good running precision and short running-in time;
the structural design is optimized, so that the installation is facilitated;
meets the ISO19 and ISO10 size series standards, and has compact cross-sectional area;
the general steel grade in martensitic stainless steel has higher carbon content than general SUS material, can obtain high strength by tempering, and the 9Cr18-GB3086 stainless steel collar has excellent high temperature resistance and corrosion resistance;
the compact structure has stable performance;
the bowl-shaped retainer structure can save the installation time;
the shape of the bowl-shaped retainer structure is closely related to the action of centrifugal force, and the flowing and backfilling of the lubricating medium are under the action of centrifugal force and surface tension, so that the maintenance of the bearing is reduced, and the lubrication is optimized;
can bear a great amount of axial load (load limited to one direction)
The polyether-ether-ketone and carbon fiber bowl-shaped retainer structure is suitable for a small number of sizes, and has the advantages of wear resistance, super temperature resistance, good tensile strength and elongation at break index;
the optimized retainer and the guide clearance can provide good lubrication for the contact area of the ball-shaped stainless steel rolling body roller path after optimization. When the stainless steel rolling bodies enable the stainless steel seat ring, the stainless steel shaft ring and the bowl-shaped retainer structure of the bearing to rotate simultaneously, the rotation flexibility of the product is ensured, noise reduction is achieved, the limit revolution is improved, the rigidity of the bearing is increased, and the bearing is improved.
The utility model establishes a complete dynamic model of the bearing, reveals an ultrathin high-temperature bearing slip mechanism and obtains bearing slip conditions; the change rule of the raceway oil supply layer is revealed, and a multi-factor coupling full-scale lubrication contact model is constructed; revealing the influence rule of each factor on the lubricating performance; the change rule of the high-speed lubricating oil film under the sputtering lubrication condition is researched. And constructing a thermal analysis model of the rolling bearing, researching the temperature rise change rule of the high-speed bearing, and revealing the thermal failure mechanism of the high-speed bearing. The main parameters of the whole design are based on the latest design concept and are matched with international connecting rails, so that the main parameters can be compared favorably with similar products of bearing companies in the United states; stainless steel 9Cr18-GB3086 rolling bodies, P5 tolerance grade, limit value standard reaching Z3 and V4; the structural design is optimized, the standard of ISO19 and ISO10 size series is met, the stainless steel 9Cr18-GB3086 bearing ring has small groove curvature, and an ultrathin thickness is 1.5mm; the whole bearing is 5mm wide, the retainer is made of polyether-ether-ketone and carbon fiber, and has a large number of rolling bodies, a narrow width of a cross beam of a bowl-shaped retainer structure and weak strength for an ultrathin high-temperature thrust ball bearing. The bowl-shaped retainer structure is adopted, so that the breakage and grinding of the retainer are avoided; and after the polyether-ether-ketone and carbon fiber bowl-shaped retainer structure is optimized, the wide rib force of the ball pocket beam is enhanced. The high-speed motor has the advantages of high limit revolution, good rigidity, high temperature resistance, wear resistance, low vibration, low noise, high rotation precision and small friction. The normal operation of the bearing is ensured; the axial load is large, the installation is convenient, and the cost is low. A special heat treatment process is adopted.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a stainless steel seat ring;
FIG. 3 is a schematic view of a stainless steel collar structure;
FIG. 4 is a schematic structural view of a bowl-shaped retainer;
fig. 5 is a cross-sectional view of fig. 4.
Detailed Description
The utility model is further described with reference to the drawings and detailed description which follow:
referring to fig. 1-5, the embodiment includes a stainless steel seat ring 01, a stainless steel shaft ring 02, stainless steel rolling bodies 04 and a bowl-shaped retainer structure 46, wherein the stainless steel seat ring 01 and the stainless steel shaft ring 02 are symmetrically arranged, the stainless steel seat ring 01 is favorable for bearing axial load bearing structures to be assembled with ballistic front and rear cabin inner parts, the stainless steel shaft ring 02 can bear axial force when being assembled with ballistic front and rear cabin shafts together, the angle between the pocket edges of the stainless steel seat ring 01 and the stainless steel shaft ring 02 is smaller than 25 degrees, the stainless steel rolling bodies 04 are arranged in the bowl-shaped retainer structure 46, the stainless steel seat ring, the stainless steel shaft ring and the bowl-shaped retainer structure are simultaneously rotated, 8 pockets are evenly arranged on the bowl-shaped retainer structure 46, the width of the pocket edge of the bowl-shaped retainer structure 46 is narrower than the pocket radius, the height of the bowl-shaped retainer structure 46 is larger than the radius of the stainless steel rolling bodies and smaller than the diameter of the stainless steel rolling bodies, the inner diameter of the bowl-shaped retainer structure 46 is equal to the diameter of the pockets, and the inner diameter of the whole bowl-shaped retainer structure 46 is equal to the multiple of the diameter of the pocket diameter, and molybdenum disulfide is arranged between the stainless steel rolling bodies 04 and the bowl-shaped retainer structure 46.
The stainless steel seat ring and the stainless steel shaft ring adopt stainless steel 9Cr18-GB3086 material ferrules and stainless steel rolling bodies, and are super-temperature resistant, wear-resistant, corrosion-resistant and impact-resistant; molybdenum disulfide is sputtered and lubricated, and has high bearing capacity and high rigidity in the axial direction; the 9Cr18-GB3086 stainless steel collar has excellent high temperature resistance and corrosion resistance; the shape of the bowl-shaped retainer structure is closely related to the action of centrifugal force, and the flow and backfill of the lubricating medium of the molybdenum disulfide sputtering lubricating layer are acted by the centrifugal force and the surface tension, so that the maintenance of the bearing is reduced, and the lubrication is optimized; the polyether-ether-ketone and carbon fiber bowl-shaped retainer structure is suitable for a small number of sizes, and has the advantages of wear resistance, super temperature resistance, good tensile strength and elongation at break index; when the stainless steel rolling bodies enable the stainless steel seat ring, the stainless steel shaft ring and the bowl-shaped retainer structure of the bearing to rotate simultaneously, the rotation flexibility of the product is ensured, noise reduction is achieved, the limit revolution is improved, the rigidity of the bearing is increased, and the bearing is improved.
Claims (1)
1. The utility model provides an ultra-thin, high temperature, thrust ball bearing, its characterized in that includes stainless steel seat circle, stainless steel arbor circle, stainless steel rolling element and bowl shape holder structure, stainless steel seat circle and stainless steel arbor circle symmetry set up, stainless steel seat circle is in favor of bearing to bear axial load structure and the front and back cabin internal fitting assembly of trajectory, stainless steel arbor circle is for bearing axial load structure and the front and back cabin axle installation cooperation of trajectory together bear axial force, stainless steel seat circle and stainless steel arbor circle's pocket edge angle is less than 25, stainless steel rolling element sets up in bowl shape holder structure and makes stainless steel seat circle and stainless steel arbor circle, bowl shape holder structure rotate simultaneously, bowl shape holder structure is provided with 8 pocket holes on average, bowl shape holder structure's pocket hole edge crossbeam width is narrower than pocket hole radius, bowl shape holder structure's height is greater than stainless steel rolling element radius and is less than stainless steel rolling element diameter, bowl shape holder structure's internal diameter is the whole multiple of pocket diameter, the rolling element and bowl shape holder structure's internal diameter is provided with the sputtering molybdenum disulfide lubrication layer between rolling element and the bowl shape holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320708648.9U CN220540104U (en) | 2023-04-03 | 2023-04-03 | Ultra-thin high-temperature thrust ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320708648.9U CN220540104U (en) | 2023-04-03 | 2023-04-03 | Ultra-thin high-temperature thrust ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220540104U true CN220540104U (en) | 2024-02-27 |
Family
ID=89975430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320708648.9U Active CN220540104U (en) | 2023-04-03 | 2023-04-03 | Ultra-thin high-temperature thrust ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220540104U (en) |
-
2023
- 2023-04-03 CN CN202320708648.9U patent/CN220540104U/en active Active
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