CN203670452U - Bearing of transmission - Google Patents
Bearing of transmission Download PDFInfo
- Publication number
- CN203670452U CN203670452U CN201320791204.2U CN201320791204U CN203670452U CN 203670452 U CN203670452 U CN 203670452U CN 201320791204 U CN201320791204 U CN 201320791204U CN 203670452 U CN203670452 U CN 203670452U
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- Prior art keywords
- bearing
- lip
- assembling end
- seal ring
- ring assembly
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a bearing of a transmission. The bearing comprises bearing rollers, a bearing inner ring and a bearing outer ring, and further comprises seal ring components, wherein clamping cavities are formed in the two ends of the bearing outer ring; pressing inclined planes are arranged at the two ends of the bearing inner ring; the seal ring components surround the bearing inner ring and the bearing outer ring to seal the bearing rollers and a holding rack; the seal ring components comprise first assembly ends and second assembly ends; the first assembly ends are in fastening connection with the clamping cavities to press the second assembly ends on the pressing inclined planes; a clamping ring is arranged on the outer sides of the first assembly ends; vent grooves are formed in the clamping ring; first lips are arranged on the inner sides of the second assembly ends; second lips are arranged on the outer sides of the second assembly ends; the second assembly ends further comprise third lips arranged between the first lips and the second lips; the third lips are flexibly squeezed on the pressing inclined planes. The bearing has the advantages that changes of temperature and pressure in and out of the bearing can be can automatically regulated; the sealing performance of the bearing can be improved effectively; the service life can be prolonged.
Description
Technical field
The utility model relates to automobile manufacturing field, relates in particular to a kind of transmission bearing.
Background technique
Traditional speed changer spring bearing of being manufactured by bearing material of the same race, owing to not installing sealing configuration or only assembling simple seal ring, the severe Environmental Conditions of speed changer in addition, the life-span of bearing is often difficult to reach designing requirement.
Existing transmission bearing, conventionally promote the working life of bearing by promoting the wear resistance of bearing material, it not only can significantly increase the cost of bearing material, and can there is bearing and cause because of bearing Environmental Conditions temperature variation the situation of torque ripple in the Environmental Conditions of multi-operating mode, cannot meet the requirement of transmission assembly.To sum up, existing transmission bearing is because of the following technical problem of the unreasonable main existence of sealing configuration:
1, bearing internal external temperature and pressure cannot regulate automatically, and the torque ripple that causes bearing to bear is larger, has reduced working life and the transmission stability of bearing.
2, cannot effectively stop that the impurity in environment enters the inside of bearing, easily occur entering impurity bearing be inner contacting with loading ability of bearing face, in rotation transmitting torque process, can damage to bearing roller and with roller contact surface, after using a period of time, cause bearing-transmission not steady, there is abnormal sound, the problems such as finally inefficacy.
3, cannot meet design bearing miniaturization and light-weighted requirement.
Model utility content
Technical problem to be solved in the utility model is, a kind of transmission bearing is provided, and can change by the inside and outside temperature and pressure of self-aligning bearing, effectively improves the sealability of bearing, extends its working life.
In order to solve the problems of the technologies described above, embodiment of the present utility model provides a kind of transmission bearing, comprise: bearing roller, be separately positioned on bearing inner race and the bearing outer ring of bearing roller both sides, wherein, the two ends of bearing outer ring are respectively equipped with and hold chamber, the two ends of bearing inner race are respectively equipped with and compress inclined-plane, transmission bearing also comprises: seal ring assembly, seal ring assembly enclosing bearing inner race and bearing outer ring, described bearing roller is sealed in wherein, seal ring assembly has the first assembling end and the second assembling end, the first assembling end is fastenedly connected and the second assembling end is pressed on and is compressed on inclined-plane holding in chamber, wherein: the arranged outside of the first assembling end holds circle, on circle, offer the vent slot in order to the inside and outside two ends of seal ring assembly are connected holding, the inner side of the second assembling end is provided with to intercept first lip of lubricant oil in seal ring assembly inside, the outside of the second assembling end is provided with to intercept large granular impurity and enters the second lip of seal ring assembly inside, the second assembling end also comprises the 3rd lip being arranged between the first lip and the second lip, and the 3rd lip elasticity is squeezed in and compresses on inclined-plane.
Wherein, the cross section that holds circle is wedge shape, and its two ends are fastened on respectively on the inwall that holds chamber.
Wherein, hold corral block card and hold chamber and form a cavity, vent slot is connected with cavity.
Wherein, between the first assembling end and bearing outer ring, have matching gap, matching gap is connected with vent slot.
Wherein, vent slot is equidistantly arranged on and holds on circle uniformly.
Wherein, the first lip and the second lip have certain gap with bearing inner race respectively.
Wherein, the 3rd lip comprises the press section that the spring section that is arranged on the second assembling end and own elasticity portion extend.
Transmission bearing provided by the utility model, has following beneficial effect:
First, because holding of having at the first assembling end offered vent slot on circle, the matching gap having between vent slot respectively and the first assembling end and bearing outer ring and hold corral block card and hold the cavity that chamber forms and be connected, when the temperature of bearing internal external is inconsistent while causing that external and internal pressure is inconsistent, gas can pass in and out bearing inside by vent slot, realizes the function that self-aligning bearing internal and external temperature and pressure change.
The second, owing to the first lip being set on the second assembling end, it can intercept the inside of most lubricant oil at seal ring assembly, prevents the situation that grease is revealed; The second set lip can be blocked in most of impurity the outside of bearing, and because the first lip and the second lip keep certain gap with bearing inner race respectively, can further reduce the frictional force between related components.
The 3rd, the 3rd set lip can elasticity be squeezed in compressing on inclined-plane of bearing inner race setting, it can guarantee that seal ring assembly can fit tightly all the time with bearing inner race, guarantee that the impurity in transmission environment can not enter into the inside of bearing, the sealability that effectively improves bearing, extends its working life.
The 4th, structure is simplified, and meets bearing miniaturization and light-weighted designing requirement.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the external overall schematic diagram of the utility model embodiment transmission bearing.
Fig. 2 is the facade structures schematic diagram of the utility model embodiment transmission bearing.
Fig. 3 is the external overall schematic diagram of the seal ring assembly of the utility model embodiment transmission bearing.
Fig. 4 is the structural representation of the utility model embodiment seal ring assembly under unassembled state.
Fig. 5 is the structural representation of the utility model embodiment seal ring assembly under assembling condition.
Fig. 6 is the structure for amplifying schematic diagram of the utility model embodiment seal ring assembly the first assembling end.
Fig. 7 is the structure for amplifying schematic diagram of the utility model embodiment seal ring assembly the second assembling end.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
In conjunction with referring to Fig. 1 and Fig. 7, be the embodiment one of the utility model embodiment transmission bearing.
As shown in Figure 1, for the external overall schematic diagram of transmission bearing in the present embodiment, its mainly by bearing roller 1(as Fig. 2), be separately positioned on bearing inner race 2 and the bearing outer ring 3 of bearing roller 1 both sides and be fastened on respectively bearing inner race 2 and bearing outer ring 3 on seal ring assembly 4(as Fig. 3) form, wherein:
Bearing roller 1 is steel ball, bearing inner race 2 and bearing outer ring 3 are respectively circular, the diameter of bearing outer ring 3 is greater than the diameter of bearing inner race 2, the elevation of transmission bearing as shown in Figure 2, the cross section of bearing roller 1 is rounded, the cross section of bearing inner race 2 and bearing outer ring 3 is roughly square, and while specifically enforcement, bearing roller 1 relies on retainer (not shown) to be installed between bearing inner race 2 and bearing outer ring 3.In the present embodiment, the side Zhou Kaishe that bearing inner race 2 is relative with bearing outer ring 3 can hold described bearing roller 1 groove (not shown) betwixt.When assembling, can first bearing roller 1 be assembled with bearing inner race 2 and bearing outer ring 3 respectively, in order to assembling follow-up and other structural members.
Further, the two ends of bearing outer ring 3 are respectively equipped with and hold chamber 31, two and hold chamber 31 and be made as symmetry, are groove structure in the form of a ring, and its effect is to match and realize both fixing with the end that holds of black box.The two ends of bearing inner race 2 are respectively equipped with and compress the gradient that inclined-plane 21, two compresses inclined-plane 21 and arrange identically, and its effect is also to match and realize both fixing, the follow-up detailed description of two fixed structures with the end that holds of black box.
Transmission bearing in the present embodiment also comprises: in order to realize bearing roller 1 stationarity of transmission and black box of high leak tightness 4 in speed changer badly turns round environment.
As shown in Figure 3, be the external overall schematic diagram of the present embodiment transmission bearing seal ring assembly, wherein: seal ring assembly 4 is that one end is provided with opening (left side shown in Fig. 3), and the other end (right side shown in Fig. 3) is made as the circular buckle structure of sealing.In the time that black box 4 is fastened on respectively on bearing inner race 2 and bearing outer ring 3, it can form a relatively airtight space, by bearing roller 1 enclosing therein.Black box 4 is implemented by following structure with the assembling of bearing enclose 2,3.
The inside and outside both sides of seal ring assembly 4 have respectively the first assembling end 41 and the second assembling end 44, the first assembling ends 41 and bearing outer ring 3 assembly connections that are bending-like, the second assembling end 44 and bearing inner race 2 assembly connections.
Further, in the outer circumference of the first assembling end 41, arrange and hold circle 42, the cross section that holds circle 42 is wedge shape, its two ends can interference be connected to above-mentioned bearing outer ring 3 and hold on the inwall in chamber 31, simultaneously, offer the vent slot 43 in order to the inside and outside two ends of seal ring assembly 4 (seal ring assembly 4 enclosing transmission bearing Internal and external cycle 2,3 stuffing box bearing rollers 1 therein inside and outside) are connected on 42 holding circle, refer to the schematic diagram 4 of seal ring assembly under unassembled state.
When concrete enforcement, the first assembling end 41 of seal ring assembly 4 is assemblied in holding in chamber 31 of bearing outer ring 3, the two ends that the first assembling end 41 holds circle 42 are squeezed on the inwall that holds chamber 31, hold circle 42 enclosings and hold chamber 31(as Fig. 4, the top of Fig. 5 the first assembling end 41) formation one cavity 5, vent slot 43 be connected with cavity 5 form one can self-aligning bearing internal and external temperature and the passage that changes of pressure, when bearing internal external (black box 4 enclosing bearing encloses 2, therein inside and outside of 3 stuffing box bearing rollers 1 and retainer (figure not mark)) inconsistent the causing when external and internal pressure is inconsistent of temperature, gas can pass in and out by vent slot 43 inside of bearing.Please with further reference to Fig. 6, the path of flowing through of gas in seal ring assembly the first assembling end 41, wherein: in the time holding circle 42 and hold chamber 31 fixings and be connected, form matching gap 6 except holding between circle first 42 assembling end 41 and bearing outer ring 3, matching gap 6, vent slot 43 and cavity 5 are connected successively, realize the automatic adjusting of transmission bearing internal and external temperature, pressure; Meanwhile, hold circle 42 and fix with holding chamber 31 high leak tightness that is connected and can guarantees seal ring assembly 4 and bearing outer ring 3 simultaneously, stop impurity to enter bearing inside.
Be understandable that, because the spacing of above-mentioned matching gap 6 is less, this region the first assembling end 41 hold the inside that assembly structure that circle 42 and bearing outer ring 3 hold chamber 31 is enough to grease to be blocked in seal ring assembly 4, can there is not the problem that grease is revealed.In addition,, if once there is the problem that grease is revealed, the structure of above-mentioned cavity 5 also can be stored certain grease therein, prevents the further leakage of grease.
Preferably, vent slot 43 is equidistantly arranged on uniformly and holds on circle 42, and it can guarantee that bearing is in operation process, above-mentioned gas circuit complete effectively, internal and external temperature and the pressure of adjusting seal ring assembly 4 that also can be balanced change.
Further, incorporated by reference to referring to Fig. 7, the second assembling end 44 is arranged on the inner side of seal ring assembly 4, be respectively equipped with the first lip 45 that is circular thereon, the second lip 46 and the 3rd lip 47, three lips 45, 46, 47 are respectively the discoid projection being arranged on the second assembling end 44, wherein: the first lip 45 is arranged on the inner side of the second assembling end 44, its effect is to intercept most lubricant oil in seal ring assembly 4 inside, the second lip 46 is arranged on the outside of the second assembling end 44, its effect is to intercept large granular impurity to enter seal ring assembly inside, the 3rd lip 47 is arranged between the first lip 45 and the second lip 46, its effect is to realize and being closely connected with bearing inner race 2.
When concrete assembling, first by bearing roller 1, bearing inner race 2 and bearing outer ring 3 assemble, then by two seal ring assemblies 4 from bearing enclose 2, press fit is carried out respectively at 3 two ends, when the first assembling end 41 be fastenedly connected according to above-mentioned installation step bearing outer ring 3 hold chamber 31 in after, the 3rd lip 46 of the second assembling end 44 is just closely pressed on compressing on inclined-plane 21 of bearing inner race 2, refer to the schematic diagram 4 of seal ring assembly under unassembled state, the sectional shape of the 3rd lip 47 is roughly triangular in shape, after assembling completes, refer to Fig. 5, the sectional shape of the 3rd lip 47 is roughly quadrilateral, this is due to the stressed extruding generation of the 3rd lip 47 deformation, elasticity is squeezed in compressing on inclined-plane 21 that bearing inner race 2 arranges, it can guarantee that seal ring assembly 4 can fit tightly all the time with bearing inner race 2, guarantee that the impurity in transmission environment can not enter into the inside of bearing, effectively improve the sealability of bearing.
The elastic performance of the 3rd lip 47 is implemented by following structure, and the 3rd lip 47 comprises the press section 472 that the spring section 471 that is arranged on the second assembling end 44 and own elasticity portion 471 extend.Spring section 471 is arranged on the projection on the second assembling end 44 for extending, and it is made up of elastic material; Press section 472 is the above-mentioned part with compressing inclined-plane 21 and contacting, its with compress together with inclined-plane 21 all fits tightly at any time.
Preferred embodiment, when pressing above-mentioned installation step fitting tight assembly 4 at bearing enclose 2, on 3 time, the first lip 45 and the second lip 46 keep certain gap with bearing inner race 2 respectively, its effect is outside the function realizing separately, the effective area of contact that reduces seal ring assembly 4 and bearing inner race 2, further reduces the frictional force between related components, prevents that structure is too fast aging.
Transmission bearing provided by the utility model, has following beneficial effect:
First, because holding of having at the first assembling end offered vent slot on circle, the matching gap having between vent slot respectively and the first assembling end and bearing outer ring and hold corral block card and hold the cavity that chamber forms and be connected, when the temperature of bearing internal external is inconsistent while causing that external and internal pressure is inconsistent, gas can pass in and out bearing inside by vent slot, realizes the function that self-aligning bearing internal and external temperature and pressure change.
The second, owing to the first lip being set on the second assembling end, it can intercept the inside of most lubricant oil at seal ring assembly, prevents the situation that grease is revealed; The second set lip can be blocked in most of impurity the outside of bearing, and because the first lip and the second lip keep certain gap with bearing inner race respectively, can further reduce the frictional force between related components.
The 3rd, the 3rd set lip can elasticity be squeezed in compressing on inclined-plane of bearing inner race setting, it can guarantee that seal ring assembly can fit tightly all the time with bearing inner race, guarantee that the impurity in transmission environment can not enter into the inside of bearing, the sealability that effectively improves bearing, extends its working life.
The 4th, structure is simplified, and meets bearing miniaturization and light-weighted designing requirement.
Claims (7)
1. a transmission bearing, comprise: bearing roller, be separately positioned on bearing inner race and the bearing outer ring of described bearing roller both sides, it is characterized in that, the two ends of described bearing outer ring are respectively equipped with and hold chamber, the two ends of described bearing inner race are respectively equipped with and compress inclined-plane, described transmission bearing also comprises: seal ring assembly, bearing inner race and described bearing outer ring described in described seal ring assembly enclosing, described bearing roller is sealed in wherein, described seal ring assembly has the first assembling end and the second assembling end, described the first assembling end is fastenedly connected in described will described the second assembling end in holding chamber described in being pressed on and compresses on inclined-plane, wherein:
The arranged outside of described the first assembling end holds circle, offers the vent slot in order to the inside and outside two ends of seal ring assembly are connected described holding on circle;
The inner side of described the second assembling end is provided with to intercept first lip of lubricant oil in described seal ring assembly inside, the outside of described the second assembling end is provided with to intercept large granular impurity and enters the second lip of described seal ring assembly inside, described the second assembling end also comprises the 3rd lip being arranged between described the first lip and described the second lip, described in described the 3rd lip elasticity is squeezed in, compresses on inclined-plane.
2. transmission bearing as claimed in claim 1, is characterized in that, described in hold circle cross section be wedge shape, described in its two ends are fastened on respectively, hold on the inwall in chamber.
3. transmission bearing as claimed in claim 1, is characterized in that, described in hold and hold chamber described in corral gear and form a cavity, described vent slot is connected with described cavity.
4. transmission bearing as claimed in claim 1, is characterized in that, between described the first assembling end and described bearing outer ring, has matching gap, and described matching gap is connected with described vent slot.
5. the transmission bearing as described in any one in claim 1 to 4, is characterized in that, described in described vent slot is equidistantly arranged on uniformly, holds on circle.
6. transmission bearing as claimed in claim 5, is characterized in that, described the first lip and described the second lip have certain gap with described bearing inner race respectively.
7. transmission bearing as claimed in claim 6, is characterized in that, described the 3rd lip comprises the spring section being arranged on described the second assembling end and the press section extending from described spring section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791204.2U CN203670452U (en) | 2013-12-05 | 2013-12-05 | Bearing of transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791204.2U CN203670452U (en) | 2013-12-05 | 2013-12-05 | Bearing of transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670452U true CN203670452U (en) | 2014-06-25 |
Family
ID=50966754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320791204.2U Expired - Fee Related CN203670452U (en) | 2013-12-05 | 2013-12-05 | Bearing of transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873122A (en) * | 2019-11-26 | 2020-03-10 | 柳州上汽汽车变速器有限公司 | Speed changer bearing |
-
2013
- 2013-12-05 CN CN201320791204.2U patent/CN203670452U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873122A (en) * | 2019-11-26 | 2020-03-10 | 柳州上汽汽车变速器有限公司 | Speed changer bearing |
| CN110873122B (en) * | 2019-11-26 | 2021-04-30 | 柳州上汽汽车变速器有限公司 | Speed changer bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20211205 |