CN203822847U - Sealing type self-aligning roller bearing for high speed train - Google Patents
Sealing type self-aligning roller bearing for high speed train Download PDFInfo
- Publication number
- CN203822847U CN203822847U CN201420141375.5U CN201420141375U CN203822847U CN 203822847 U CN203822847 U CN 203822847U CN 201420141375 U CN201420141375 U CN 201420141375U CN 203822847 U CN203822847 U CN 203822847U
- Authority
- CN
- China
- Prior art keywords
- retainer
- roller
- bearing
- outer ring
- seal casinghousing
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 8
- 229920002302 Nylon 6,6 Polymers 0.000 claims abstract description 7
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- 238000001746 injection moulding Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000004519 grease Substances 0.000 description 7
- 239000000314 lubricant Substances 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
-
- 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
- F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
- F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a sealing type self-aligning roller bearing for a high speed train. The sealing type self-aligning roller bearing comprises an inner ring, an outer ring, a roller, a retainer and a sealed shell, wherein the retainer is made of glass fiber reinforced nylon 66 materials and is integrally formed by injection molding; the retainer is arranged at the position of a central line of a roller path between the inner and outer rings; the overall retainer is of a conical cylinder shape; the single side wall of the retainer is of an oblique profile in the axial section; multiple roller installing parts are uniformly distributed along the circumferential direction of the retainer; the side surfaces of the roller installing parts are spherical; an included angle beta formed between a connecting line of the widest part of the roller installing parts and the center of the bearing and the radial section of the bearing equals to a nominal contact angle. According to the structure design, the bearing can meet the use requirement of the high speed train and can be conveniently repaired, the maintenance cost of the high speed train is effectively lowered, and the service life of the bearing is remarkably prolonged.
Description
Technical field
The utility model relates to technical field of bearings, relates generally to sealed type selfaligning roller bearing structural type for a kind of high ferro.
Background technique
At present, the selfaligning roller bearing of applying in high ferro is single cover or SRB130 * 220 of using in pairs, its internal structure as shown in Figures 1 to 4: by outer ring 1, inner ring 2, roller 3, pressing cage 4, guide ring 5, formed.The type bearing size is high ferro special designs, is subject to structural design reason, the shortcomings such as the selfaligning roller bearing of this design exists lubricating grease easily to pollute, noise in operating is large, energy consumption is large, bearing capacity is lower, poor safety performance.Because of the particularity of high ferro bearing application, be security consideration, often when safeguarding, high ferro occurs that some finite wear must more renew bearing, reach far away its projected life the actual life of the bearing that it is replaced, and causes maintenance cost high.
Model utility content
The purpose of this utility model is to provide sealed type selfaligning roller bearing structural type for a kind of high ferro, and this bearing is roller guide type, has the advantages such as bearing capacity is high, long service life, anti-pollution ability is high, noise in operating is little, energy consumption is low, Security is high.
The purpose of this utility model can adopt following technological scheme to realize: a kind of high ferro sealed type selfaligning roller bearing, comprise inner ring, outer ring, roller, retainer and seal casinghousing, described inner ring has two raceways, described outer ring raceway is sphere, roller is spherical roller, it is characterized in that: described retainer is made by glass fiber reinforced nylon 66 material integrated injection moldings, the position of the raceway center line of described retainer between Internal and external cycle, and the thickness of described retainer occupies 1/2nd of raceway space thickness, described retainer whole for cone tubular and one-sided wall in the axial direction cross section be "/" type profile, so-called "/" type profile refers in the inside and outside both sides of retainer axial cross section to be two flat lines parallel to each other that are obliquely installed, described retainer circumferentially has uniform roller assembly department, and be sphere in the side of roller assembly department, and be provided with technique chamfering at knuckle place, and the angle β of the widest position of described roller assembly department and the line of bearing centre and bearing radial cross section equals nominal contact angle.
During bearing operation, outer ring external diameter coordinates with axle box housing, inner ring bears car body weight and the load-carrying in whole joint high ferro compartment, and upper and lower, the left and right power that produce due to the vibration and sway in compartment in service, enough frictional force is provided to the roller that is positioned at bearing bottom, when main shaft has enough moments of torsion, drive the inner ring rotation of selfaligning roller bearing, because frictional force exists, now roller can be rotated along himself axis, during roller rotation, drives nylon cages to rotate together.The effect that is arranged on the seal casinghousing of bearing both ends of the surface is to provide protection for the lubricant grease in bearing; prevent that foreign object from polluting and preventing that lubricant grease runs off; different from conventional seals mode, the encapsulation scheme of this bearing is the design of " returning " word mazy type, and the limit speed of bearing is had no effect.Can effectively solve the difficult problem that conventional seals lip formula scheme limit speed is low, temperature rise is large.
Further, the shape of the roller assembly department of described retainer is consistent with roller shape of cross section, and roller packs retainer roller assembly department into by retainer outside.
Further, the both sides end face of described retainer is the ring plain perpendicular to axial direction.
Further, the large end external diameter of the described retainer of close both sides and the cylndrical surface that small end inner-diameter portion whose is the direction that parallels to the axis.
Further, outside described outer ring, diametric plane two ends are provided with the ladder external diameter coordinating with outer ring seal casinghousing.
Further, the seal casinghousing that is arranged on bearing both sides end face is comprised of outer ring seal casinghousing and inner ring seal casinghousing, outer ring seal casinghousing shape of cross section comprises the fixing part coordinating with outer ring ladder external diameter and side and the capping portion that raceway is carried out to capping, described inner ring seal casinghousing is fitted on the side of inner ring, and in two housings junction, is the design of " returning " word mazy type.
The beneficial effects of the utility model, are partly explained in detail in connection with embodiment.
Accompanying drawing explanation
The high ferro selfaligning roller bearing structural representation that accompanying drawing 1 is standard design.
Accompanying drawing 2 is the retainer half sectional view of high ferro with selfaligning roller bearing.
Accompanying drawing 3 be in Fig. 2 B to view.
Accompanying drawing 4 is the sectional schematic diagram at A-A position in Fig. 3.
Accompanying drawing 5 is high ferro of the present utility model selfaligning roller bearing structural representation.
The nylon cages half sectional view that accompanying drawing 6 is model utility.
The structural representation that accompanying drawing 7 is seal casinghousing.
Accompanying drawing 8 is the partial enlarged drawing at G place in Fig. 7.
In figure: 1 outer ring, 2 inner rings, 3 rollers, 4 retainers, 5 guide rings, 6 seal casinghousings, 11 outer ring ladder external diameters, 41 roller assembly departments, 42 sphere R profiles, 43 technique chamferings, 44 small end internal diameters, 45 large end external diameters, 46 planes, 61 outer ring seal casinghousings, 62 inner ring seal casinghousings, curved under 63 inner ring seal casinghousings, curved on 64 outer ring seal casinghousings.
Embodiment
By reference to the accompanying drawings, specific embodiment of the utility model is described.
As shown in Figure 5: its part of the utility model bearing comprises outer ring 1, inner ring 2, roller 3, nylon cages 4, seal casinghousing 6.
As shown in accompanying drawing 5 to 6: the axial cross section of nylon cages 4 is "/" type profile, the inside and outside conical surface is shown as flat line L on cross section, parallel to each other.The both sides end face of retainer is the ring plain M perpendicular to axial direction.The large end external diameter of the described retainer of close both sides and the cylndrical surface N that small end inner-diameter portion whose is the direction that parallels to the axis.Retainer is used glass fiber reinforced nylon 66 to adopt integrated injection forming, and glass fiber reinforced nylon 66 is wherein a kind of engineering plastics material, can be with reference to the relevant technologies standard of engineering plastics cage in JB/T7048-2002.In its week, be upwards evenly provided with roller assembly department 41 and crossbeam, and be provided with technique chamfering 43 in the corner of roller assembly department.The angle β of the widest position of roller assembly department 41 wherein and the line of bearing centre and bearing radial cross section equals nominal contact angle (nominal contact angle: nominal contact angle α is the normal n at rolling element and lasso raceway point of contact place and the angle between bearing radial plane.α is larger, and the ability that bearing bears thrust load is just larger), retainer roller assembly department be shaped as sphere R profile 42, consistent with roller shape of cross section, facilitate roller to pack retainer roller assembly department 41 into by retainer outside.Four chamfering positions of roller assembly department arrange technique chamfering 43, retainer small end internal diameter 44, hold external diameter 45 to be designed to cylndrical surface (N) greatly, and retainer both ends of the surface are designed to plane 46.
As shown in accompanying drawing 5,7,8: the seal casinghousing 6 that is arranged on bearing both ends of the surface is divided into outer ring seal casinghousing 61 and inner ring seal casinghousing 62, and material is steel plate 10, the outside of outer ring seal casinghousing 61 coordinates with outer ring ladder external diameter 11; One end face of inner ring seal casinghousing 62 coordinates with inner ring end face; Outer ring seal casinghousing 61 is the design of " returning " type labyrinth with the cooperation place of inner ring seal casinghousing 62; for the lubricant grease in bearing provides protection; prevent that foreign object from polluting and preventing that lubricant grease runs off, and the high ferro of application sealing design has no effect to its limit speed with selfaligning roller bearing.When bearing and axle box cooperation, the position that seal casinghousing protrudes is on its assembling nothing impact.
By structure above, can be found out, the retainer of the utility model design adopts "/" type integral type profile design, the reinforced design of inner employing, make the position of the raceway center line of retainer between Internal and external cycle, and the thickness of retainer occupies 1/2nd left and right in raceway space, intensity is high, flexible movements, by strengthening roller diameter and length, load rating numerical value is increased, and then make the longer service life of bearing; The sealing configuration of bearing both ends of the surface adopts the design of " returning " word maze-type structure; for the lubricant grease in bearing provides protection, prevent that foreign object from polluting and preventing that lubricant grease runs off, on the other hand on the one hand; the design of employing mazy type, has no effect to the limit speed of bearing.Can effectively solve the difficult problem that conventional seals lip formula scheme limit speed is low, temperature rise is large; Retainer adopts glass fiber reinforced nylon 66 materials, compares with stamped steel retainer, and noise during running obviously reduces, and surface friction drag is little.It is when stamped steel retainer was when the appearance that runs up was lost efficacy that original high ferro adopts the significant deficiency of stamped steel retainer with selfaligning roller bearing, make bearing to block and to stop rapidly, due to the inertia of high ferro when the high speed operation, now there will be the fracture of axle box main shaft axle journal place, produce " earnestly " phenomenon, cause serious security incident, the high ferro of present design adopts glass fiber reinforced nylon 66 materials with aligning roller bearing retainer, can effectively avoid " earnestly " phenomenon, even if there is retainer failure phenomenon, special characteristics due to nylon material, still can safe operation one segment distance.In sum, the utlity model has the advantages such as bearing capacity is high, long service life, anti-pollution ability is high, noise in operating is little, energy consumption is low, Security is high.
Because of the particularity of high ferro bearing application, be security consideration, often when safeguarding, high ferro occurs that some finite wear must more renew bearing, reach far away its projected life the actual life of the bearing that it is replaced, and causes maintenance cost high.Introduce the recovery scenario of this bearing below.
For above-mentioned high ferro, with a kind of restorative procedure of selfaligning roller bearing, be:
For above-mentioned high ferro, with a kind of restorative procedure of selfaligning roller bearing, be:
Step 1, dismounting bearing cleaning.
Step 2, by the abrasion condition of inspect by instrument and measurement roller, retainer and seal casinghousing;
Step 3, according to inspect by instrument and measurement result, analysis result also provides corrective action suggestion:
If bearing internal external raceway, roller, retainer state are all better, reach use standard and continue to use;
If inside and outside raceway occurs heavier wearing and tearing or has tired point corrosion, carry out successively step 4 and step 5;
If inside and outside raceway state is better, there are heavier wearing and tearing or have tired point corrosion, skip to step 5 in roller.
Step 4, bearing parts sand blast, according to actual wear situation reconditioning outer ring raceway or/and inner ring raceway makes raceway reach following technical requirements: μ m roughness Ra≤0.16, circularity △ Cir≤3,
Step 5, changes major diameter roller and retainer, rear bearing is installed and should be reached following technical requirements: radial internal clearance Gr=0.09 mm～0.145mm.
Step 6, improper while causing wearing and tearing because installing, dismantling when seal casinghousing structure, according to actual conditions, adjust seal casinghousing shape or change novel sealing housing.
The beneficial effect of this recovery scenario is: make bearing after repairing, can continue to use, effectively reduce the maintenance cost of high ferro, make the significant prolongation in working life of bearing.
Claims (6)
1. a high ferro sealed type selfaligning roller bearing, comprise inner ring, outer ring, roller, retainer and seal casinghousing, described inner ring has two raceways, described outer ring raceway is sphere, roller is spherical roller, it is characterized in that: described retainer is made by glass fiber reinforced nylon 66 material integrated injection moldings, the position of the raceway center line of described retainer between Internal and external cycle, and the thickness of described retainer occupies 1/2nd of raceway space thickness, described retainer whole for cone tubular and one-sided wall in the axial direction cross section be "/" type profile, so-called "/" type profile refers in the inside and outside both sides of retainer axial cross section to be two flat lines (L) parallel to each other that are obliquely installed, described retainer circumferentially has uniform roller assembly department, and be sphere in the side of roller assembly department, and be provided with technique chamfering at knuckle place, and the angle β of the widest position of described roller assembly department and the line of bearing centre and bearing radial cross section equals nominal contact angle.
2. a kind of high ferro sealed type selfaligning roller bearing according to claim 1, is characterized in that, the shape of the roller assembly department of described retainer is consistent with roller shape of cross section, and described roller packs retainer roller assembly department into by retainer outside.
3. a kind of high ferro sealed type selfaligning roller bearing according to claim 1, is characterized in that, the both sides end face of described retainer is the ring plain (M) perpendicular to axial direction.
4. a kind of high ferro sealed type selfaligning roller bearing according to claim 1, is characterized in that, the large end external diameter of the described retainer of close both sides and the cylndrical surface (N) that small end inner-diameter portion whose is the direction that parallels to the axis.
5. a kind of high ferro sealed type selfaligning roller bearing according to claim 1, is characterized in that, outside described outer ring, diametric plane two ends are provided with the ladder external diameter coordinating with outer ring seal casinghousing.
6. a kind of high ferro sealed type selfaligning roller bearing according to claim 1, it is characterized in that, the seal casinghousing that is arranged on bearing both sides end face is comprised of outer ring seal casinghousing and inner ring seal casinghousing, described outer ring seal casinghousing shape of cross section comprises the fixing part coordinating with outer ring ladder external diameter and side and the capping portion that raceway is carried out to capping, described inner ring seal casinghousing is fitted on the side of inner ring, and in two housings junction, is the design of " returning " word mazy type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141375.5U CN203822847U (en) | 2014-03-27 | 2014-03-27 | Sealing type self-aligning roller bearing for high speed train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141375.5U CN203822847U (en) | 2014-03-27 | 2014-03-27 | Sealing type self-aligning roller bearing for high speed train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822847U true CN203822847U (en) | 2014-09-10 |
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ID=51478356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420141375.5U Expired - Lifetime CN203822847U (en) | 2014-03-27 | 2014-03-27 | Sealing type self-aligning roller bearing for high speed train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822847U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836067A (en) * | 2014-03-27 | 2014-06-04 | 山东凯美瑞轴承科技有限公司 | Sealed self-aligning roller bearing for high-speed rail and repair method thereof |
| CN108626242A (en) * | 2018-07-16 | 2018-10-09 | 洛阳Lyc轴承有限公司 | A kind of self-aligning roller bearing of double-sided tape sealing |
| CN113175477A (en) * | 2021-03-25 | 2021-07-27 | 山东凯美瑞轴承科技有限公司 | Concave spherical surface self-aligning roller bearing |
| CN116753240A (en) * | 2023-08-17 | 2023-09-15 | 山东小鸭新能源科技有限公司 | Bearing for spindle of photovoltaic solar crystalline silicon slicer and supporting seat of bearing |
-
2014
- 2014-03-27 CN CN201420141375.5U patent/CN203822847U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836067A (en) * | 2014-03-27 | 2014-06-04 | 山东凯美瑞轴承科技有限公司 | Sealed self-aligning roller bearing for high-speed rail and repair method thereof |
| CN108626242A (en) * | 2018-07-16 | 2018-10-09 | 洛阳Lyc轴承有限公司 | A kind of self-aligning roller bearing of double-sided tape sealing |
| CN113175477A (en) * | 2021-03-25 | 2021-07-27 | 山东凯美瑞轴承科技有限公司 | Concave spherical surface self-aligning roller bearing |
| CN116753240A (en) * | 2023-08-17 | 2023-09-15 | 山东小鸭新能源科技有限公司 | Bearing for spindle of photovoltaic solar crystalline silicon slicer and supporting seat of bearing |
| CN116753240B (en) * | 2023-08-17 | 2023-11-10 | 山东小鸭新能源科技有限公司 | Bearing for spindle of photovoltaic solar crystalline silicon slicer and supporting seat of bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |