CN2763620Y - Bearing for aluminium casing engine and speed variator - Google Patents
Bearing for aluminium casing engine and speed variator Download PDFInfo
- Publication number
- CN2763620Y CN2763620Y CN 200520100218 CN200520100218U CN2763620Y CN 2763620 Y CN2763620 Y CN 2763620Y CN 200520100218 CN200520100218 CN 200520100218 CN 200520100218 U CN200520100218 U CN 200520100218U CN 2763620 Y CN2763620 Y CN 2763620Y
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- Prior art keywords
- bearing
- material layer
- polymer material
- aluminium
- outer ring
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- Expired - Fee Related
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- Mounting Of Bearings Or Others (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a bearing used for an engine with an aluminium outer shell and a transmission case. The utility model solves the peristaltic phenomenon between the bearing and an outer shell because of the differential of thermal expansion coefficient between the bearing and the outer shell after the common bearing is assembled in the outer shell. The bearing used for an engine with an aluminium outer shell and a transmission case comprises an inner ring, rolling balls, a retainer for fixing the rolling balls and an outer ring. The utility model is characterized in that a high molecular material layer is arranged on the periphery surface of the outer ring. After the bearing with the structure is assembled in a shell body, the bearing and the shell body are stably connected, the service life of the bearing is not affected, the working noise is little and the relevant parts are not easy to damage.
Description
Technical field
The utility model relates to a kind of bearing, relates in particular to a kind of bearing that is used on aluminium shell motor, the gearbox.
Background technique
All be provided with bearing on the shell of motor or gearbox, in order to supporting power input shaft or pto, motor or gearbox require the bearing of supporting power input shaft or pto will keep stable when work, in order to avoid the damage of the driving component in the casing.And the motor of existing aluminium shell or gearbox be after work a period of time, and the transmission part in the casing phenomenon occurs damaging through regular meeting, and noise is big during work, and tracing it to its cause is because be installed in due to the wearing and tearing of bearing outside diameter on the aluminum enclosure and housing fitting surface increase the weight of.As everyone knows, the thermal expansion coefficient of aluminium is bigger than the thermal expansion coefficient of the Bearing Steel of making bearing outer ring, and the operating temperature of bearing and aluminium shell cooperation place can change between room temperature is to nearly 200 ℃, big like this range of temperature must cause the variation of the matching relationship between bearing and the aluminium shell, and when being assembled to bearing on the casing, magnitude of interference between the two can not be poor even as big as the compensation deformation that both take place under big temperature change condition.Because too big as if magnitude of interference when assembling, the one, cause the assembling difficulty; The 2nd, make aluminium mass shell body generation cracking phenomena easily, the intensity of housing can not get guaranteeing, has brought potential safety hazard.Therefore under the situation of normal assembling, when operating temperature acquires a certain degree, the expansion coefficient of Bearing Steel is little because the expansion coefficient of aluminium is big, bearing outside diameter will reduce the gap with the interference of housing bore and increase, under the high speed rotating effect of power input shaft or pto, the instantaneous force direction complexity that is subjected to of bearing, bearing under the complicated outside force effect will with the fitting surface of housing on wriggle, because of the hardness of Bearing Steel hardness greater than aluminum material, the result of wriggling increases the weight of the part wearing and tearing that cooperate with bearing on the housing, on the one hand, the particle that gets off of being worn might enter into the working surface of bearing, thereby have influence on the performance and the life-span of bearing, bearing is fragile; On the other hand, the matching gap that increases the weight of to have increased bearing and housing of wearing and tearing, bearing is very unstable, thereby has caused the associated components in the housing to damage easily, has influenced the working life and the working stability of complete machine.
Summary of the invention
Be assembled to aluminium matter motor for overcoming existing plain bearing, in the time of on the gear box casing, matching gap constantly increases between bearing and the housing because of the variation of operating temperature makes, and then make bearing crawl take place with the housing cooperation place, causing weares and teares between the two increases the weight of, the defective that related components easily is damaged, the technical problem that the utility model solved: what a kind of new structure was provided is used for aluminium shell motor, bearing on the gearbox, it is assembled to aluminium matter motor, after in the housing of gearbox, be difficult for taking place crawl, working stability, correlated parts are not fragile.
For solveing the technical problem, technical solution adopted in the utility model: a kind of bearing that is used on aluminium shell motor, the gearbox, comprise inner ring, ball, the fixedly retainer and the outer ring of ball, it is characterized in that on the outer circumferential face of described outer ring, being provided with polymer material layer.On the outer ring of plain bearing, be provided with polymer material layer, can utilize polymer material layer rubber-like characteristic, in the time of in the housing that bearing is assembled to aluminium matter motor, gearbox, for motor, gearbox afford redress because of generation high temperature causes the gap occurring between bearing and the housing in the course of the work, avoid effectively or alleviated the phenomenon that wriggling takes place in housing bearing, the working life of having improved related components.
As preferably, described polymer material layer protrudes the outer circumferential face of bearing outer ring.Polymer material layer protrudes the outer circumferential face of outer ring, can improve bearing and housing stability in the course of the work.
As preferably, the height that polymer material layer protrudes the outer ring outer circumferential face is 0.02～0.07 millimeter.The size requirement of polymer material layer protrusion outer ring has satisfied the requirement in the actual use.
As preferably, described polymer material layer is located in the groove set on the outer circumferential face of outer ring.Polymer material layer is located in the groove, has improved the combine fastness of polymer material layer with the outer ring.
As preferably, described groove is at least two.Groove is that a plurality of bearings that can improve are assembled to stability in the housing, is convenient to assembling.
As preferably, described groove is wide to be 4 millimeter, be 1.5 millimeter deeply.The recess width and the degree of depth require to have satisfied actual usage requirement.
As preferably, the thermal expansion coefficient of described polymer material layer is greater than the thermal expansion coefficient of aluminium.The requirement of both thermal expansion coefficient, the side face that has satisfied housing installation bearing place when high temperature is owing to circle or gap increase are lost in deformation, polymer material layer can closely cooperate with described side face, guaranteed the stability of work, when being assembled to bearing in the housing simultaneously, need not assemble too tightly, make things convenient for assembling between the two.
Therefore, the beneficial effects of the utility model: on the outer ring of bearing, be provided with polymer material layer, utilized macromolecular material to have elasticity and the big characteristic of expansion coefficient, avoid effectively or alleviated the crawl of bearing in housing when at high temperature working, the working life of having improved related components; Polymer material layer protrudes the outer circumferential face of bearing, has improved bearing and housing stability in the course of the work; The height that polymer material layer protrudes the bearing outer circumferential face has satisfied actual job requirement; Polymer material layer is located in the groove, has improved the combine fastness of polymer material layer with the outer ring outer circumferential face; Groove is that a plurality of bearings that can improve are assembled to stability in the housing, is convenient to assembling; The recess width and the degree of depth require to have satisfied actual usage requirement; The requirement of the thermal expansion coefficient of polymer material layer and aluminium has improved at housing the very stability between the large deformation rear case and bearing has taken place, and can be convenient to assembling between the two.
Description of drawings
Fig. 1 is the sectional arrangement drawing that the utility model is used for the bearing on aluminium shell motor, the gearbox;
Fig. 2 is the sectional view of bearing outer ring.
Embodiment
Fig. 1 illustrates, and the utility model is used for the bearing on aluminium shell motor, the gearbox, and its agent structure and common bearing are as good as, and also are by outer ring 2, ball 3, are used to keep the retainer 5 of ball 3 and inner ring 4 to be constituted.On the outer circumferential face of outer ring 2, be provided with polymer material layer 1, described polymer material layer 1 can be whole outsourcing on the outer circumferential face of outer ring 2, also can be set as the ring strip.When being configured to encircle strip, be assembled to stability in the housing in order to improve bearing, the macromolecule layer 1 of ring strip is at least two, and it is located at (see figure 2) in the groove 6 on 2 outer circumferential faces of outer ring.Generally speaking, polymer material layer 1 protrudes the outer circumferential face of outer ring 2, considers the thermal expansion coefficient of aluminium and Bearing Steel and requirement easy to assembly, and the height that polymer material layer 1 protrudes outer ring 2 is 0.02～0.07 millimeter.
When motor or gearbox when temperature reaches peak value in the course of the work, maximum thermal expansion deformation takes place in the aluminium shell, sometimes because the difference of the internal physical structure of aluminum material, cause shell the circle phenomenon to take place to lose with the side face that cooperates of bearing, therefore require the thermal expansion coefficient of the thermal expansion coefficient of polymer material layer 1 greater than Bearing Steel, polymer material layer 1 can closely be cooperated with shell well, guaranteed the stability of complete machine work.
Fig. 2 illustrates, and is provided with groove 6 on the outer circumferential face of outer ring 2, and polymer material layer 1 can be poured in the described groove 6, improved the combination stability of polymer material layer 1 with outer ring 2, for satisfying actual job requirement, the width of described groove 6 is 4 millimeter, and the degree of depth is 1 millimeter.After polymer material layer 1 is poured in the groove 6, need carry out grinding,, be convenient to carrying out smoothly of assembly process with conformity and the surface of good roughness that guarantees its outside dimension to the surface of polymer material layer 1.
Claims (8)
1, a kind of bearing that is used on aluminium shell motor, the gearbox comprises inner ring, ball, the fixedly retainer and the outer ring of ball, it is characterized in that being provided with on the outer circumferential face of described outer ring (2) polymer material layer (1).
2, the bearing that is used on aluminium shell motor, the gearbox according to claim 1 is characterized in that described polymer material layer (1) protrudes the outer circumferential face of outer ring (2).
3, the bearing that is used on aluminium shell motor, the gearbox according to claim 2 is characterized in that the height of described polymer material layer (1) protrusion outer ring (2) outer circumferential face is 0.02～0.07 millimeter.
4, the bearing that is used on aluminium shell motor, the gearbox according to claim 1 and 2 is characterized in that described polymer material layer (1) is located in the groove (6) set on the outer circumferential face of outer ring (2).
5, the bearing that is used on aluminium shell motor, the gearbox according to claim 4 is characterized in that described groove (6) is at least two.
6, the bearing that is used on aluminium shell motor, the gearbox according to claim 5, it is characterized in that described groove (6) wide be 4 millimeter, be 1.5 millimeter deeply.
7, according to claim 1 or 2 or 3 or the 5 or 6 described bearings that are used on aluminium shell motor, the gearbox, it is characterized in that the thermal expansion coefficient of the thermal expansion coefficient of described polymer material layer (1) greater than aluminium.
8, the bearing that is used on aluminium shell motor, the gearbox according to claim 4 is characterized in that the thermal expansion coefficient of the thermal expansion coefficient of described polymer material layer (1) greater than aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100218 CN2763620Y (en) | 2005-01-18 | 2005-01-18 | Bearing for aluminium casing engine and speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100218 CN2763620Y (en) | 2005-01-18 | 2005-01-18 | Bearing for aluminium casing engine and speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2763620Y true CN2763620Y (en) | 2006-03-08 |
Family
ID=36141166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520100218 Expired - Fee Related CN2763620Y (en) | 2005-01-18 | 2005-01-18 | Bearing for aluminium casing engine and speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2763620Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488695A (en) * | 2017-09-11 | 2019-03-19 | 铃木株式会社 | Bearing cage structure and its manufacturing method |
-
2005
- 2005-01-18 CN CN 200520100218 patent/CN2763620Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488695A (en) * | 2017-09-11 | 2019-03-19 | 铃木株式会社 | Bearing cage structure and its manufacturing method |
| CN109488695B (en) * | 2017-09-11 | 2021-04-02 | 铃木株式会社 | Bearing part structure and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060308 Termination date: 20100219 |