CN202001567U - Idle wheel for automobile engine - Google Patents
Idle wheel for automobile engine Download PDFInfo
- Publication number
- CN202001567U CN202001567U CN2011200563319U CN201120056331U CN202001567U CN 202001567 U CN202001567 U CN 202001567U CN 2011200563319 U CN2011200563319 U CN 2011200563319U CN 201120056331 U CN201120056331 U CN 201120056331U CN 202001567 U CN202001567 U CN 202001567U
- Authority
- CN
- China
- Prior art keywords
- bearing
- idle pulley
- motor car
- car engine
- engine idle
- 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 - Fee Related
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Abstract
The utility model discloses an idle wheel for an automobile engine, comprising a stud shaft (1) and a bearing (3), wherein the stud shaft (1) is inserted and sleeved in an inner ring of the bearing (3), a counter bore (30) is formed in the inner ring of the bearing (3), a stud head (10) of the stud shaft (1) is arranged in the counter bore (30), and a pulley (4) is fixed on an outer ring of the bearing (3) in an injection molding way. The total height for installing the idle wheel is reduced, the supporting effect and the stability of the idle wheel are enhanced, and the dustproof effect is good.
Description
Technical field:
The utility model relates to technical field of automobile engine, the idle pulley of using more specifically to a kind of motor car engine.
Background technique:
Along with improving constantly of automotive performance, also more and more higher to the requirement of auto parts machinery, the automobile expansion tightening wheel plays crucial effects as the vitals on the motor car engine to the function of motor and the performance and the raising of performance.People also require to have travelling comfort preferably when the security requirement of automobile is improved.Have with regard to the accessory that requires automobile like this: running is flexibly stable, the efficient height, and rotating speed is fast, and the life-span is long, the characteristics that noise is low.
Idle pulley is a kind of as expansion tightening wheel, has been widely used in a plurality of transmissions and speed control system of motor car engine.It is with location, bearing centre hole, and simple in structure, easy for installation, it is flexible that the position is set.On motor, play supporting effect, keep the initial expanding force of belt, reduce the belt span vibration belt.Strengthen the cornerite of belt and belt wheel, increase friction area and prevent belt slippage.Also can change the direction of belt operation by idle pulley, improve the compactedness of motor, reduce and occupy the space, also can increase or reduce the use of idle pulley according to the layout situation of motor.
Existing idle pulley in use has the following disadvantages: 1, the bolt head of bolt axis is exposed at the bearing outside, makes that the height after installing is higher.2, bearing easily enters the dust damage under bad working environment.
The model utility content:
The purpose of this utility model is exactly the deficiency at prior art, and a kind of motor car engine idle pulley is provided, and it has reduced the total height that idle pulley is installed, and has strengthened the support effect and the stability of idle pulley, good dustproof effect.
Technology solution of the present utility model is as follows:
A kind of motor car engine idle pulley comprises bolt axis, bearing, and the bolt axis sleeve forms counterbore on the inner ring of bearing in bearing inner race, and the bolt head of bolt axis places in the counterbore, and injection moulding is fixed with pulley on the outer ring of bearing.
Form two barb notch rings of symmetrical distribution on the described pulley.
Moulding is recessed on the outer ring of described bearing goes out portion.
The front portion retaining of described bearing is shaped on front cover, and the rear portion retaining is shaped on rear end cover.
Described rear end cover has the shrinkage pool step, and the bolt head of bolt axis is compressed on the step.
The beneficial effects of the utility model are:
1, this bearing inner race is provided with a counterbore of being convenient to install, and bolt head is placed in the counterbore, has reduced the total height that idle pulley is installed.
2, pulley is provided with two barb notch rings of symmetrical distribution, has strengthened the support effect and the stability of idle pulley.
3, each cooperation of bearing two ends is provided with and is used for the dust-tight end cap, in the bearing bad working environment bearing is played double shielding.
Description of drawings:
Fig. 1 is a sectional view of the present utility model
Fig. 2 is the right elevation of Fig. 1
Among the figure: 1, bolt axis; 10, bolt head; 2, rear end cover; 21, step; 3, bearing; 30, counterbore; 31, recessedly go out portion; 4, pulley; 40, two barb notch rings; 5, front cover.
Embodiment:
Embodiment: see shown in Fig. 1,2 that a kind of motor car engine idle pulley comprises bolt axis 1, bearing 3, bolt axis 1 sleeve is in bearing 3 inner rings, the counterbore 30 that forms on the inner ring of bearing 3, the bolt head 10 of bolt axis 1 places in the counterbore 30, and injection moulding is fixed with pulley 4 on the outer ring of bearing 3.
Form two barb notch rings 40 of symmetrical distribution on the described pulley 4.
Moulding is recessed on the outer ring of described bearing 3 goes out portion 31, and it is fixing more firm to be convenient to pulley 4 injection mouldings.
The front portion retaining of described bearing 3 is shaped on front cover 5, and the rear portion retaining is shaped on rear end cover 2.
Described rear end cover 2 has shrinkage pool step 21, and the bolt head 10 of bolt axis 1 is compressed on the step 21.
Working principle: the inner ring of this bearing 3 is provided with a counterbore of being convenient to install 30, and bolt head 10 is placed in the counterbore 30, has reduced the total height that idle pulley is installed.
Pulley 4 is provided with two barb notch rings 40 of symmetrical distribution, has strengthened the support effect and the stability of idle pulley.
Each cooperation of bearing 3 two ends is provided with and is used for dust-tight front cover 5 and rear end cover 2, in the bearing bad working environment bearing is played double shielding.
Claims (5)
1. motor car engine idle pulley, comprise bolt axis (1), bearing (3), bolt axis (1) sleeve is in bearing (3) inner ring, it is characterized in that: form counterbore (30) on the inner ring of bearing (3), the bolt head (10) of bolt axis (1) places in the counterbore (30), and injection moulding is fixed with pulley (4) on the outer ring of bearing (3).
2. a kind of motor car engine idle pulley according to claim 1 is characterized in that: the two barb notch rings (40) that form symmetrical distribution on the pulley (4).
3. a kind of motor car engine idle pulley according to claim 1 is characterized in that: moulding is recessed on the outer ring of bearing (3) goes out portion (31).
4. a kind of motor car engine idle pulley according to claim 1 and 2 is characterized in that: the front portion retaining of bearing (3) is shaped on front cover (5), and the rear portion retaining is shaped on rear end cover (2).
5. a kind of motor car engine idle pulley according to claim 4 is characterized in that: rear end cover (2) has shrinkage pool step (21), and the bolt head (10) of bolt axis (1) is compressed on the step (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200563319U CN202001567U (en) | 2011-03-04 | 2011-03-04 | Idle wheel for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200563319U CN202001567U (en) | 2011-03-04 | 2011-03-04 | Idle wheel for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001567U true CN202001567U (en) | 2011-10-05 |
Family
ID=44704308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200563319U Expired - Fee Related CN202001567U (en) | 2011-03-04 | 2011-03-04 | Idle wheel for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591126A (en) * | 2012-08-14 | 2014-02-19 | 重庆长安汽车股份有限公司 | Engine accessory gear train idler assembly |
| CN104763782A (en) * | 2015-04-20 | 2015-07-08 | 杭州诚信汽车轴承有限公司 | Automatic tensioning wheel for engine belt |
-
2011
- 2011-03-04 CN CN2011200563319U patent/CN202001567U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591126A (en) * | 2012-08-14 | 2014-02-19 | 重庆长安汽车股份有限公司 | Engine accessory gear train idler assembly |
| CN104763782A (en) * | 2015-04-20 | 2015-07-08 | 杭州诚信汽车轴承有限公司 | Automatic tensioning wheel for engine belt |
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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: 20111005 Termination date: 20160304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |