CN202301432U - Idle wheel bearing and idle wheel assembly comprising same - Google Patents
Idle wheel bearing and idle wheel assembly comprising same Download PDFInfo
- Publication number
- CN202301432U CN202301432U CN2011203720862U CN201120372086U CN202301432U CN 202301432 U CN202301432 U CN 202301432U CN 2011203720862 U CN2011203720862 U CN 2011203720862U CN 201120372086 U CN201120372086 U CN 201120372086U CN 202301432 U CN202301432 U CN 202301432U
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- CN
- China
- Prior art keywords
- idle wheel
- bearing
- idle pulley
- outer ring
- idle
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses an idle wheel bearing and an idle wheel assembly comprising the idle wheel bearing. The idle wheel bearing comprises a bearing outer ring, an idle wheel middle shaft, a rolling ball and a retainer, wherein a roller path matched with the bearing outer ring is processed on the outer edge of the idle wheel middle shaft, in addition, the middle part of the idle wheel middle shaft is provided with a nail passing hole in axial arrangement, the retainer is sheathed with the rolling ball and is positioned in the roller path, and an idle wheel belt wheel is sheathed onto the bearing outer ring of the idle wheel bearing for forming the idle wheel assembly. The traditional bearing inner ring and the idle wheel shaft are made into a whole, the idle wheel middle shaft is formed, and the interference fit of the idle wheel bearing inner ring and the idle wheel shaft in the original design is omitted, so the idle wheel assembly has the advantages that the heat generated by rolling friction is little, the heat radiation and abrasion reduction requirements of the rolling bearing can be met through adopting the lubricating oil sputtering lubrication in a gear chamber, simultaneously, the process and the structure of the idle wheel bearing and the idle wheel assembly are simple, the operation of the idle wheel is more stable, and the service life is longer.
Description
Technical field
The utility model relates to engine art, particularly a kind of idle pulley bearing and comprise the idle pulley assembly of this idle pulley bearing.
Background technique
The motor idle pulley is the gears that play transfer functions in the middle of two driving gears of not contacting with each other, is used for changing the sense of rotation of driven gear, makes it identical with driving gear, only changes rotation direction and can not change velocity ratio.The effect of idle pulley mainly contains two: the one, change the gear rotation direction, and the 2nd, the spatial arrangement of adjustment motor complete machine train of gearings.
Idle pulley is installed on the idler shaft through rolling bearing, and idler shaft passes through bolt again on cylinder block, wherein, the outer ring of rolling bearing and idle pulley interference fit, the inner ring of idler shaft and rolling bearing also is an interference fit.In the working procedure, the inner ring of rolling bearing is fixed, and rotate with idle pulley the outer ring.Bearing between idler shaft and the idle gear is provided with rolling bearing; The heat that rolling friction produces is little; Utilize lubricated heat radiation, the anti-attrition requirement that can satisfy rolling bearing of lubricating oil splash in the gear chamber; But adopt the idle pulley modular construction relative complex of rolling bearing, the inner ring interference fit of idler shaft and rolling bearing is high to the requirement of processing technology.
The model utility content
The technical problem that the utility model solves provides a kind of structure, technology is simple, makes the idle pulley running more steady, the idle pulley bearing of longer service life and comprise the idle pulley assembly of this idle pulley bearing.
For achieving the above object; An aspect according to the utility model; A kind of idle pulley bearing is provided, has comprised: bearing outer ring, idle pulley jack shaft, ball and retainer, the outer rim of idle pulley jack shaft is processed with the raceway that is complementary with bearing outer ring; And the middle part has the nail hole excessively of axial setting, and retainer entangles ball and is arranged in raceway.
Further, raceway is two that laterally arrange.
Further, the idle pulley jack shaft is the step axle, and raceway is positioned at the step axle outer rim of the section of end greatly.
According to another aspect of the utility model, a kind of idle pulley assembly is provided, comprising: idle pulley belt pulley and above-mentioned idle pulley bearing, idle pulley belt pulley cover install on the bearing outer ring that idler shaft holds.
Further, the outer ring interference fit of idle pulley belt pulley and idle pulley bearing
Technological scheme according to the utility model; Because traditional bearing inner race and idler shaft are made of one, form the idle pulley jack shaft, omitted the interference fit of the inner ring and the idler shaft of idle pulley bearing in original design; It is little to make this idle pulley assembly both have a heat that rolling friction produces; Utilize that lubricating oil splash in the gear chamber is lubricated can to satisfy the heat radiation of rolling bearing, the advantage that anti-attrition requires, simultaneously, make that also structure, the technology of this idle pulley bearing and idle pulley assembly are simple; Make that the idle pulley running is more steady, longer service life.
Description of drawings
Fig. 1 is the sectional structure schematic representation according to the idle pulley bearing of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the utility model is described in detail, but the protection domain that is to be understood that the utility model does not receive the restriction of embodiment.
Referring to Fig. 1, this idler shaft is contracted and is drawn together: bearing outer ring 1, idle pulley jack shaft 2, ball 3 and retainer 4.
Wherein, idle pulley jack shaft 2 is the step axle, and the outer rim of big end section (left side section among the figure) is processed with two raceways that are complementary with bearing outer ring 1; Ball 3 is arranged in this raceway, and between bearing outer ring 1 and idle pulley jack shaft 2, retainer 4 entangles ball 3 and between bearing outer ring 1 and idle pulley jack shaft 2, ball 3 is remained in the raceway between bearing outer ring 1 and the idle pulley jack shaft 2 roll; Idle pulley belt pulley (not shown) is sleeved on the outer ring of bearing outer ring 1, forms the idle pulley assembly with bearing outer ring 1 interference fit.What idle pulley jack shaft 2 middle parts had an axial setting crosses nail hole 21, passes this through bolt and crosses nail hole 21 and be fixed on the cylinder block (not shown), and the right side of the small end section of idle pulley jack shaft 2 props up cylinder block, is the rotation slot milling of idle pulley belt pulley.
In the running, rotate with idle pulley the outer ring of this idle pulley bearing.Traditional bearing inner race and idler shaft are made of one, form the idle pulley jack shaft, omitted the interference fit of the inner ring and the idler shaft of idle pulley bearing in original design; It is little to make this idle pulley assembly both have a heat that rolling friction produces; Utilize that lubricating oil splash in the gear chamber is lubricated can to satisfy the heat radiation of rolling bearing, the advantage that anti-attrition requires, simultaneously, make that also structure, the technology of this idle pulley bearing and idle pulley assembly are simple; Make that the idle pulley running is more steady, longer service life.
More than a disclosed specific embodiment that is merely the utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the utility model.
Claims (5)
1. idle pulley bearing; It is characterized in that; Comprise: bearing outer ring, idle pulley jack shaft, ball and retainer; The outer rim of said idle pulley jack shaft is processed with the raceway that is complementary with said bearing outer ring, and the middle part have an axial setting cross the nail hole, said retainer entangles ball and is arranged in said raceway.
2. idle pulley bearing according to claim 1 is characterized in that, said raceway is two that laterally arrange.
3. idle pulley bearing according to claim 1 and 2 is characterized in that, said idle pulley jack shaft is the step axle, and said raceway is positioned at the said step axle outer rim of the section of end greatly.
4. an idle pulley assembly is characterized in that, comprising: idle pulley belt pulley and like each described idle pulley bearing in the claim 1 to 3, said idle pulley belt pulley cover installs on the bearing outer ring of said idle pulley bearing.
5. idle pulley assembly according to claim 4 is characterized in that, the outer ring interference fit of said idle pulley belt pulley and said idle pulley bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203720862U CN202301432U (en) | 2011-09-30 | 2011-09-30 | Idle wheel bearing and idle wheel assembly comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203720862U CN202301432U (en) | 2011-09-30 | 2011-09-30 | Idle wheel bearing and idle wheel assembly comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301432U true CN202301432U (en) | 2012-07-04 |
Family
ID=46370338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203720862U Expired - Fee Related CN202301432U (en) | 2011-09-30 | 2011-09-30 | Idle wheel bearing and idle wheel assembly comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704561A (en) * | 2016-12-30 | 2017-05-24 | 广西玉柴机器股份有限公司 | Idler gear shaft component |
| CN107606113A (en) * | 2017-09-21 | 2018-01-19 | 方乐 | A kind of idle pulley structure |
-
2011
- 2011-09-30 CN CN2011203720862U patent/CN202301432U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704561A (en) * | 2016-12-30 | 2017-05-24 | 广西玉柴机器股份有限公司 | Idler gear shaft component |
| CN107606113A (en) * | 2017-09-21 | 2018-01-19 | 方乐 | A kind of idle pulley structure |
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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 |
Granted publication date: 20120704 Termination date: 20170930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |