CN203702878U - Tapered roller gear bearing - Google Patents
Tapered roller gear bearing Download PDFInfo
- Publication number
- CN203702878U CN203702878U CN201420052194.5U CN201420052194U CN203702878U CN 203702878 U CN203702878 U CN 203702878U CN 201420052194 U CN201420052194 U CN 201420052194U CN 203702878 U CN203702878 U CN 203702878U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- ring
- tapered roller
- exterior seal
- outer ring
- 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
- 239000004519 grease Substances 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a tapered roller gear bearing. The tapered roller gear bearing comprises an outer ring, inner rings, tapered rollers and a retainer rack, wherein the tapered rollers are arranged between the raceway surface of the outer ring and the raceways of the inner rings and in the retainer rack; the outer ring is a gear outer ring; gear teeth are uniformly formed on the outer side wall of the outer ring; annular grooves are formed in the bottoms of the side walls of the raceways of the inner rings; elastic retainer rings are clamped in the annular grooves; the small end faces of the tapered rollers are arranged above the elastic retainer rings; gaps are reserved between the small end faces of the tapered rollers and the elastic retainer rings; an inner seal ring and an outer seal ring are mounted between the outer ring and the inner rings; an elastic raised ring on the outer side wall of the outer seal ring is embedded in a ring-shaped groove formed in the near end face of the inner side wall of the outer ring. According to the tapered roller gear bearing, the frequency of up and down movement of the tapered rollers is reduced, the assembly precision of the tapered roller gear bearing is increased, the service life is prolonged, the stability and reliability of host equipment are improved, and the ring-shaped groove formed in the outer ring ensures that the outer seal ring is firmly mounted and is unlike to drop, so that the stability of the tapered roller gear bearing is improved.
Description
Technical field:
The utility model relates to technical field of bearings, more specifically to a kind of tapered roller gear-bearing.
Background technique:
Existing tapered roller bearing is no matter be biserial or single-row (it is for single-row) as shown in Figure 1, tapered roller 1a be arranged in retainer 2a and be placed in outer ring 3a and inner ring 4a between, in the time of bearing working, tapered roller 1a rotate time because the effect of external force can produce upper and lower play, tapered roller 1a is rotated steady not, when serious, can make bearing damage.
Simultaneously, existing tapered roller bearing, it does not generally arrange seal ring, in the time being arranged in gear-box, producing iron and cuts because gear-box has friction and wear when the running in stage between gear, this can enter in bearing the rolling element in bearing is worn and torn, and reduces the working life of bearing.
And the bearing adopting in the planetary mechanism of most domestic gear-box is the bearing of basic structure, in transmission, easily produce concentric error, affect the load capacity of bearing and the stationarity of running.Due to the bearing in the planetary mechanism of gear-box, its structural requirement compactness, reliability requirement is high, and still, traditional raising bearing capacity and the method for reliability are to strengthen bearing size, and this will make the size of gear-box strengthen, and weight increases, and greatly increases cost.And outsourcing inner ring and roller come to use with the planetary pinion assembling of oneself, this mode cannot guarantee the assembling play of planetary precision and entirety in assembly process, and these all will directly affect smoothness of operation and the life-span of speed reducer.
Meanwhile, it easily departs from existing seal ring from bearing, and common seal ring cannot reach the effect of sealing, easily departs from the contrary and the gear in gear-box is damaged.
Model utility content:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of tapered roller gear-bearing is provided, and its reduces the play up and down of tapered roller, improves the assembly precision of bearing simultaneously, increases the service life, and improves stability and the reliability of main process equipment.Simultaneously, it arranges inner seal ring lip on inner seal ring, exterior seal ring lip is set on exterior seal ring, exterior seal ring lip elasticity is pressed against on inner seal ring, and inner seal ring lip elasticity is pressed against on exterior seal ring, forms the sealing of three places, improve sealing, and elastic bumps circle on the sidewall of exterior seal ring is nested in and guarantees in the annular groove at madial wall proximal end face place of outer ring that exterior seal ring installs firmly, difficult drop-off, improves antiwhip.
The scheme that the utility model solve the technical problem is:
A kind of tapered roller gear-bearing, comprise outer ring, inner ring, tapered roller and retainer, tapered roller is placed between the roller surface of outer ring and the raceway of inner ring, tapered roller is arranged in retainer, described outer ring is gear outer ring, on its outer side wall, form the equally distributed gear teeth, the sidewall bottom of the raceway of described inner ring forms annular groove, elastic collar holding is in annular groove, the small end face of tapered roller, above elastic collar, has gap between the small end face of tapered roller and elastic collar; Inner seal ring and exterior seal ring are arranged between outer ring and inner ring, the exterior seal ring lip elasticity of exterior seal ring is pressed against on inner seal ring, the inner seal ring lip elasticity of inner seal ring is pressed against on exterior seal ring, and the elastic bumps circle on the outer side wall of exterior seal ring is nested in the annular groove at madial wall proximal end face place of outer ring.
Described exterior seal ring lip is made up of the first wrapping angle and the second wrapping angle, and the first wrapping angle elasticity is pressed against the middle part of the vertical plane of inner seal ring and faces the wall and meditates above, and the second wrapping angle elasticity is pressed against on the plane of structure of inner seal ring; On facing the wall and meditating in the middle part that inner seal ring lip elasticity is pressed against the exterior seal ring vertical plane of exterior seal ring.
Described exterior seal ring lip and elastic bumps circle are bonded and fixed on exterior seal ring, and inner seal ring lip is bonded and fixed on inner seal ring.
Described inner ring comprises two sub-inner rings, between two sub-inner rings, is provided with spacer, and the both ends of the surface of spacer are pressed against on the inner side end of two sub-inner rings, on the outer side wall of two sub-inner rings, form raceway, and two row tapered rollers are in raceway.
Between inner seal ring and exterior seal ring, fill grease.
Outstanding effect of the present utility model is:
1, compared with prior art, it forms annular groove in the sidewall bottom of the raceway of inner ring, elastic collar holding is in annular groove, and the small end face of tapered roller, above elastic collar, has gap between the small end face of tapered roller and elastic collar, like this when tapered roller is in the time rotating, when it produces upper and lower play, in the time that tapered roller moves down, elastic collar will be encountered spacing, with the amount of play up and down of restriction tapered roller, improve bearing stability and working life.
2, it arranges inner seal ring lip on inner seal ring, exterior seal ring lip is set on exterior seal ring, exterior seal ring lip elasticity is pressed against on inner seal ring, inner seal ring lip elasticity is pressed against on exterior seal ring, exterior seal ring lip is made up of the first wrapping angle and the second wrapping angle, on facing the wall and meditating in the middle part that the first wrapping angle elasticity is pressed against the vertical plane of inner seal ring, the second wrapping angle elasticity is pressed against on the plane of structure of inner seal ring, form the sealing of three places, thereby can there is better sealing, it also can guarantee that the grease between inner seal ring and exterior seal ring can be because the extruding of the grease between outer ring and inner ring is flowed out simultaneously, improve the working life of bearing.
3, by reducing bearing outer ring, directly adopt gear as bearing outer ring, guaranteed the load capacity of bearing, and overcome concentric error, adopted rational internal structure design simultaneously, can improve the assembly precision of bearing, increase the service life, improve stability and the reliability of equipment.
4, the elastic bumps circle on the sidewall of its exterior seal ring is nested in and in the annular groove at madial wall proximal end face place of outer ring, guarantees that exterior seal ring installs firmly, and difficult drop-off, has guaranteed antiwhip.
Accompanying drawing explanation:
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is partial structurtes schematic diagram of the present utility model.
Embodiment:
Embodiment, see as shown in Figures 2 and 3, a kind of tapered roller gear-bearing, comprise outer ring 1, inner ring 2, tapered roller 3 and retainer 4, tapered roller 3 is placed between the roller surface of outer ring 1 and the raceway of inner ring 2, tapered roller 3 is arranged in retainer 4, described outer ring 1 is gear outer ring, on its outer side wall, form the equally distributed gear teeth, the sidewall bottom of the raceway of described inner ring 2 forms annular groove 21, elastic collar 22 holdings are in annular groove 21, the small end face of tapered roller 3 is above elastic collar 22, between the small end face of tapered roller 3 and elastic collar 22, there is gap 26, inner seal ring 5 and exterior seal ring 6 are arranged between outer ring 1 and inner ring 2, exterior seal ring lip 61 elasticity of exterior seal ring 6 are pressed against on inner seal ring 5, inner seal ring lip 51 elasticity of inner seal ring 5 are pressed against on exterior seal ring 6, and the elastic bumps circle 62 on the outer side wall of exterior seal ring 6 is nested in the annular groove 11 at madial wall proximal end face place of outer ring 1.
Described exterior seal ring lip 61 is made up of the first wrapping angle 61a and the second wrapping angle 61b, and the first wrapping angle 61a elasticity is pressed against the middle part of the vertical plane 5a of inner seal ring 5 and faces the wall and meditates above, and the second wrapping angle 61b elasticity is pressed against on the plane of structure 5b of inner seal ring 5; On facing the wall and meditating in the middle part that inner seal ring lip 51 elasticity are pressed against the exterior seal ring vertical plane 6a of exterior seal ring 6.
Described exterior seal ring lip 61 and elastic bumps circle 62 are bonded and fixed on exterior seal ring 6, and inner seal ring lip 51 is bonded and fixed on inner seal ring 5.
Described inner ring 2 comprises two sub-inner rings, between two sub-inner rings, is provided with spacer 7, and the both ends of the surface of spacer 7 are pressed against on the inner side end of two sub-inner rings, on the outer side wall of two sub-inner rings, form raceway, and two row tapered rollers 3 are in raceway.
Between inner seal ring 5 and exterior seal ring 6, fill grease.
Wherein in the middle of elastic collar 22, there is a disconnection to make elastic collar 22 form two elastic collar end faces, when mounted, that it is flicked slightly, from the small end face depress of sub-inner ring, elastic collar 22 is moved in annular groove 21 along the outer wall at the small end face place of sub-inner ring, the minimum diameter of annular groove 21 is less than the diameter of the outer wall at the small end face place of sub-inner ring, the elasticity of elastic collar 22 is recovered holding in annular groove 21 like this, meanwhile, two of its elastic collar 22 elastic collar end faces are just close and even can be close together substantially mutually.
In this bearing, itself grease is housed, grease between grease extruding inner seal ring 5 and exterior seal ring 6 between outer ring 1 and inner ring 2, inner seal ring lip 51 stops that the grease between outer ring 1 and inner ring 2 enters in the space between inner seal ring 5 and exterior seal ring 6, the first wrapping angle 61a stops that the grease between the first wrapping angle 61a and inner seal ring lip 51 enters in the space between the first wrapping angle 61a and the second wrapping angle 61b, the second wrapping angle 61b stops that the grease between the first wrapping angle 61a and the second wrapping angle 61b flows out inner seal ring 5 and exterior seal ring 6, thereby guarantee that the grease between inner seal ring 5 and exterior seal ring 6 can be because the extruding of the grease between outer ring 1 and inner ring 2 is flowed out.
Elastic bumps circle 62 on the sidewall of exterior seal ring 6 is nested in the annular groove 11 at madial wall proximal end face place of outer ring 1, can improve exterior seal ring 6 and be fixed on the fastness on bearing, prevents from departing from, and improves antiwhip.
The present embodiment is double-row conical, also can be set to single-row tapered roller according to actual conditions, and inner ring 2 can be single sub-inner ring.
Claims (5)
1. a tapered roller gear-bearing, comprise outer ring (1), inner ring (2), tapered roller (3) and retainer (4), tapered roller (3) is placed between the roller surface of outer ring (1) and the raceway of inner ring (2), tapered roller (3) is arranged in retainer (4), it is characterized in that: described outer ring (1) is gear outer ring, on its outer side wall, form the equally distributed gear teeth, the sidewall bottom of the raceway of described inner ring (2) forms annular groove (21), elastic collar (22) holding is in annular groove (21), the small end face of tapered roller (3) is in elastic collar (22) top, between the small end face of tapered roller (3) and elastic collar (22), there is gap (26), inner seal ring (5) and exterior seal ring (6) are arranged between outer ring (1) and inner ring (2), exterior seal ring lip (61) elasticity of exterior seal ring (6) is pressed against on inner seal ring (5), it is upper that inner seal ring lip (51) elasticity of inner seal ring (5) is pressed against exterior seal ring (6), and the elastic bumps circle (62) on the outer side wall of exterior seal ring (6) is nested in the annular groove (11) at madial wall proximal end face place of outer ring (1).
2. a kind of tapered roller gear-bearing according to claim 1, it is characterized in that: described exterior seal ring lip (61) is made up of the first wrapping angle (61a) and the second wrapping angle (61b), the first wrapping angle (61a) elasticity is pressed against the middle part of the vertical plane (5a) of inner seal ring (5) and faces the wall and meditates above, and the second wrapping angle (61b) elasticity is pressed against on the plane of structure (5b) of inner seal ring (5); On facing the wall and meditating in the middle part that inner seal ring lip (51) elasticity is pressed against the exterior seal ring vertical plane (6a) of exterior seal ring (6).
3. a kind of tapered roller gear-bearing according to claim 1, it is characterized in that: it is upper that described exterior seal ring lip (61) and elastic bumps circle (62) are bonded and fixed at exterior seal ring (6), and inner seal ring lip (51) is bonded and fixed on inner seal ring (5).
4. a kind of tapered roller gear-bearing according to claim 1, it is characterized in that: described inner ring (2) comprises two sub-inner rings, between two sub-inner rings, be provided with spacer (7), the both ends of the surface of spacer (7) are pressed against on the inner side end of two sub-inner rings, on the outer side wall of two sub-inner rings, form raceway, two row tapered rollers (3) are in raceway.
5. a kind of tapered roller gear-bearing according to claim 1, is characterized in that: between inner seal ring (5) and exterior seal ring (6), fill grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052194.5U CN203702878U (en) | 2014-01-27 | 2014-01-27 | Tapered roller gear bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052194.5U CN203702878U (en) | 2014-01-27 | 2014-01-27 | Tapered roller gear bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702878U true CN203702878U (en) | 2014-07-09 |
Family
ID=51053327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420052194.5U Expired - Lifetime CN203702878U (en) | 2014-01-27 | 2014-01-27 | Tapered roller gear bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214212A (en) * | 2014-08-21 | 2014-12-17 | 沈阳罕王精密轴承有限公司 | Double-row conical and cylindrical roller combination bearing having gears on outer ring |
| CN104372160A (en) * | 2014-07-31 | 2015-02-25 | 宁夏金环轴承制造有限公司 | Heat treatment method for gear tapered roller bearing and bearing toothed outer ring |
-
2014
- 2014-01-27 CN CN201420052194.5U patent/CN203702878U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372160A (en) * | 2014-07-31 | 2015-02-25 | 宁夏金环轴承制造有限公司 | Heat treatment method for gear tapered roller bearing and bearing toothed outer ring |
| CN104372160B (en) * | 2014-07-31 | 2016-09-07 | 宁夏金环轴承制造有限公司 | Gear taper roll bearing and the heat treatment method of bearing band tooth outer ring |
| CN104214212A (en) * | 2014-08-21 | 2014-12-17 | 沈阳罕王精密轴承有限公司 | Double-row conical and cylindrical roller combination bearing having gears on outer ring |
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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 |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |