CN208749933U - A kind of automobile engine stretching wheel assembly - Google Patents
A kind of automobile engine stretching wheel assembly Download PDFInfo
- Publication number
- CN208749933U CN208749933U CN201821201969.5U CN201821201969U CN208749933U CN 208749933 U CN208749933 U CN 208749933U CN 201821201969 U CN201821201969 U CN 201821201969U CN 208749933 U CN208749933 U CN 208749933U
- Authority
- CN
- China
- Prior art keywords
- bearing
- groove
- automobile engine
- wheel assembly
- 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.)
- Active
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a kind of auto parts and components, specifically disclose a kind of automobile engine stretching wheel assembly.The automobile engine stretching wheel assembly includes connection bearing and tensioning wheel, the connecting shaft, which is contracted, includes bearing inner race, bearing outer ring and ball, the tensioning wheel include foreign steamer and with the matched lubrication groove of bearing outer ring and several for connecting the connection floor of lubrication groove and foreign steamer；The outer surface of the bearing outer-ring offers at least one circumferential groove, and indentation or protrusion for increasing friction are equipped in the groove；The inner surface of the tensioning wheel is equipped with the chimb with matching grooves, and the edge of the tension wheel shaft bearing inner ring is equipped with chamfering；At least two notches axially extended are distributed in the end that the lubrication groove is equipped with chamfering, and the notch passes through chimb.Above-described automobile engine stretching wheel assembly increases tensioning wheel and connects the pulling-out force between bearing, improve the service performance of stretching wheel assembly by way of setting groove and chimb.
Description
Technical field
The utility model relates to a kind of auto parts and components, and in particular to a kind of automobile engine stretching wheel assembly.
Background technique
In recent years, Domestic Automotive Industry is grown rapidly, and the performance and production technology of automobile engine tensioning wheel are also continuous
Progress, but due to the high speed of automobile, popular, the requirement to automobile engine tensioning wheel is also being continuously improved.
There are many existing automobile engine stretching wheel assembly structure type, but generally existing following insufficient:
1. the pulling-out force between tensioning wheel and connection bearing is insufficient.With the continuous improvement of engine speed, tensioning wheel with
There is the risk for pulling simultaneously relative motion between connection bearing, influences the service performance of tensioning wheel.Especially at one section of work
Between after, tensioning wheel friction heat absorption after temperature increase, pull hypodynamic phenomenon and become apparent.
2. tensioning wheel toughness is insufficient.And available engine revolving speed is high, power is big, load change is frequent, belt wheel is easy to
It wears or cracks in operating.
3. connecting bearing has leakage rouge phenomenon, the working performance for connecting bearing is influenced.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of automobile engine stretching wheel assemblies, by the way that groove is arranged
With the form of chimb, increases tensioning wheel and connect the pulling-out force between bearing, improve the service performance of stretching wheel assembly.
In order to solve the above-mentioned technical problem, a kind of the technical scheme that the utility model is provided is as follows: automobile engine tensioning
Wheel assembly, including connection bearing and tensioning wheel, the connecting shaft, which is contracted, includes bearing inner race, bearing outer ring and ball, described
Tensioning wheel include foreign steamer and with the matched lubrication groove of bearing outer ring and several for connecting the connection floor of lubrication groove and foreign steamer；It is described
The outer surface of bearing outer ring offers at least one circumferential groove, be equipped in the groove for increases the indentation to rub or
Protrusion；The inner surface of the tensioning wheel is equipped with the chimb with matching grooves, and the lubrication groove edge of the tensioning wheel is equipped with chamfering；It is described
At least two notches axially extended are distributed in the end that lubrication groove is equipped with chamfering, and the notch passes through chimb.
The outer surface of the bearing outer ring offers at least one circumferential groove, is equipped in the groove for increasing
The indentation or protrusion of friction, the inner surface of the tensioning wheel are equipped with the chimb with matching grooves；Chimb is used cooperatively with groove, and
Further increase indentation or protrusion in groove, increase the attachment force between bearing and tensioning wheel, reduces tensioning wheel and connecting shaft
The risk of opposite sliding occurs between holding.The edge of the tension wheel shaft bearing inner ring is equipped with chamfering, to tensioning wheel and connection bearing
Assembly play guiding role.At least two notches axially extended are distributed in the end that the lubrication groove is equipped with chamfering, due to
The internal diameter of chimb is less than the outer diameter of bearing outer ring, and the assembly resistance connected between bearing and tensioning wheel is larger；And it is set in lubrication groove
After setting notch, when assembly, lubrication groove can expand outwardly under the action of assembling resistance；And after assembly is completed, foreign steamer resets,
Ensure tensioning wheel and connects the interaction force between bearing.
Preferably, the groove closed ring set, reduces the difficulty of processing and assembly.
Preferably, the bottom portion of groove is equipped with the straight grain for being parallel to bearing outer ring axis.
Preferably, the tensioning wheel is made of PA66+25% glass, the good toughness of the material is more suitable for being used in and turns
Fast high, the frequent occasion of alternating load.
Preferably, setting between the bearing inner race and bearing outer ring, there are two the sealing cover of annular, two sealing covers pair
Title is distributed in ball two sides, and lubrication filler is filled between sealing cover described in two；The sealing cover includes rigid material
Manufactured support portion, the width of the support portion are less than the gap between bearing inner race and bearing outer ring；The support portion it is interior
Edge is connected with inner seal ring corresponding with bearing inner race, and the outer rim of the support portion is connected with external seal corresponding with bearing outer ring
Circle.A relatively closed space is formed between two sealing covers, prevents airtight and watertight padding from leaking.
Preferably, the inner surface of the bearing outer ring is equipped with locating slot, the exterior seal ring is arranged in locating slot.
Preferably, the outer surface of the bearing inner race is equipped with caulking groove；The inner seal ring includes from inside to outside successively
The first sealing lip, the second sealing lip and the third sealing lip of distribution, first sealing lip and third sealing lip are located at
Bearing inner race outer surface is simultaneously close in the two sides of caulking groove, and second sealing lip is arranged in caulking groove and contacts with caulking groove side wall.
First sealing lip, the second sealing lip and third sealing lip are contacted with the different parts of bearing inner race respectively, and it is close to form three contacts
Seal point, plays the effect of pressure reduction with classification sealing between different contact seal points, and the risk of airtight and watertight padding leakage substantially reduces.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment automobile engine stretching wheel assembly；
Fig. 2 is the left view of the present embodiment automobile engine stretching wheel assembly；
Fig. 3 is the structural schematic diagram that bearing is connected in the present embodiment automobile engine stretching wheel assembly；
Fig. 4 is the partial enlarged view in Fig. 3 at A；
Fig. 5 is the structural schematic diagram of tensioning wheel in the present embodiment automobile engine stretching wheel assembly.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment
As shown in Figure 1 and Figure 5, a kind of automobile engine stretching wheel assembly, including connection bearing 1 and tensioning wheel 2, it is described
Connect bearing 1 include bearing inner race 11, bearing outer ring 14 and ball 12, the tensioning wheel 2 include foreign steamer 24 and with outside bearing
Enclose 14 matched lubrication grooves 25 and several for connecting the connection floor 22 of lubrication groove 25 and foreign steamer 24.The tensioning wheel 2 is by PA66
+ 25% glass is made, the good toughness of the material, is more suitable for being used in revolving speed height, the frequent occasion of alternating load.
As shown in Figure 1, Figure 2 and Figure 3, the outer surface of the bearing outer ring 14 offers at least one circumferential direction and closed ring set
Groove 15, and 15 bottom of groove is equipped with and is parallel to the straight grain of 14 axis of bearing outer ring.The inner surface of the tensioning wheel 2
Equipped with the matched chimb 23 of groove 15, chimb 23 is used cooperatively with groove 15, and further increase in groove 15 indentation or
Protrusion increases the attachment force between connection bearing 1 and tensioning wheel 2, reduces and occurs to slide relatively between tensioning wheel 2 and connection bearing 1
Dynamic risk.
As shown in Figure 2 and Figure 5,25 edge of lubrication groove of the tensioning wheel 2 is equipped with chamfering 26；To tensioning wheel 2 and connection bearing 1
Assembly play guiding role.At least two notches axially extended are distributed in the end that the lubrication groove 25 is equipped with chamfering 26
21, and the notch 21 passes through chimb 23.Due to chimb 23 internal diameter be less than bearing outer ring 14 outer diameter, connection bearing 1 with
Assembly resistance between tensioning wheel 2 is larger；And after notch 21 is set in lubrication groove 25, when assembly, lubrication groove 25 is in assembly resistance
It can be expanded outwardly under effect；And after assembly is completed, foreign steamer 24 resets, it is ensured that the phase between tensioning wheel 2 and connection bearing 1
Interreaction force.
Further, as shown in Figure 3 and Figure 4, annular there are two being set between the bearing inner race 11 and bearing outer ring 14
Sealing cover 13, two sealing covers 13 are symmetrically distributed in 12 two sides of ball, fill out between sealing cover 13 described in two filled with lubrication
Material；The sealing cover 13 includes support portion 135 made of rigid material, and the width of the support portion 135 is less than bearing inner race
Gap between 11 and bearing outer ring 14；The inner edge of the support portion 135 is connected with inner seal ring corresponding with bearing inner race 11,
The outer rim of the support portion 135 is connected with exterior seal ring 131 corresponding with bearing outer ring 14.One is formed between two sealing covers 13
A relatively closed space, prevents airtight and watertight padding from leaking.
As shown in Figure 3 and Figure 4, the inner surface of the bearing outer ring 14 is equipped with locating slot, and the exterior seal ring 131 is arranged
In locating slot.The outer surface of the bearing inner race 11 is equipped with caulking groove 111；The inner seal ring includes successively dividing from inside to outside
The first sealing lip 132, the second sealing lip 133 and the third sealing lip 134 of cloth, first sealing lip 132 and third sealing
Lip 134 is located at the two sides of caulking groove 111 and is close to 11 outer surface of bearing inner race, and second sealing lip 133 is arranged embedding
It is contacted in slot 111 and with 111 side wall of caulking groove.First sealing lip 132, the second sealing lip 133 and third sealing lip 134 respectively with axis
The different parts contact for holding inner ring 11, forms three contact seal points, it is close to play pressure reduction with classification between different contact seal points
The risk of the effect of envelope, airtight and watertight padding leakage substantially reduces.
Above-described automobile engine stretching wheel assembly, setting groove and chimb by way of, increase tensioning wheel and
The pulling-out force between bearing is connected, the service performance of stretching wheel assembly is improved.
In short, the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all
Any modifications, equivalent replacements, and improvements made within spirit of the present utility model and principle etc. should be included in practical
Within novel protection scope.
Claims (7)
1. a kind of automobile engine stretching wheel assembly, including connection bearing (1) and tensioning wheel (2), connection bearing (1) packet
Bearing inner race (11), bearing outer ring (14) and ball (12) are included, the tensioning wheel (2) includes foreign steamer (24) and and bearing outer ring
(14) matched lubrication groove (25) and several connection floors (22) for being used to connect lubrication groove (25) and foreign steamer (24)；It is characterized by:
The outer surface of the bearing outer ring (14) offers at least one circumferential groove (15), is equipped with and is used in the groove (15)
Increase the indentation or protrusion of friction；The inner surface of the tensioning wheel (2) be equipped with groove (15) matched chimb (23), described
Lubrication groove (25) edge of bearing up pulley (2) is equipped with chamfering (26)；The end that the lubrication groove (25) is equipped with chamfering (26) is distributed at least two
A notch (21) axially extended, and the notch (21) passes through chimb (23).
2. automobile engine stretching wheel assembly according to claim 1, it is characterised in that: described groove (15) closed loop is set
It sets.
3. automobile engine stretching wheel assembly according to claim 1, it is characterised in that: described groove (15) bottom is set
It is parallel to the straight grain of bearing outer ring (14) axis.
4. automobile engine stretching wheel assembly according to claim 1, it is characterised in that: the tensioning wheel (2) by
PA66+25% glass is made.
5. automobile engine stretching wheel assembly described in any one of -4 according to claim 1, it is characterised in that: in the bearing
It is set between circle (11) and bearing outer ring (14) there are two the sealing cover (13) of annular, two sealing covers (13) are symmetrically distributed in ball
(12) two sides, filled with lubrication filler between sealing cover (13) described in two；The sealing cover (13) includes rigid material
Manufactured support portion (135), between the width of the support portion (135) is less than between bearing inner race (11) and bearing outer ring (14)
Gap；The inner edge of the support portion (135) is connected with inner seal ring corresponding with bearing inner race (11), the support portion (135)
Outer rim is connected with exterior seal ring (131) corresponding with bearing outer ring (14).
6. automobile engine stretching wheel assembly according to claim 5, it is characterised in that: the bearing outer ring (14) it is interior
Surface is equipped with locating slot, and the exterior seal ring (131) is arranged in locating slot.
7. automobile engine stretching wheel assembly according to claim 5, it is characterised in that: outside the bearing inner race (11)
Surface is equipped with caulking groove (111)；The inner seal ring includes the first sealing lip (132) being sequentially distributed from inside to outside, second close
Envelope lip (133) and third sealing lip (134), first sealing lip (132) and third sealing lip (134) are located at caulking groove
(111) bearing inner race (11) outer surface is simultaneously close in two sides, the second sealing lip (133) setting in caulking groove (111) simultaneously
It is contacted with caulking groove (111) side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201969.5U CN208749933U (en) | 2018-07-27 | 2018-07-27 | A kind of automobile engine stretching wheel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201969.5U CN208749933U (en) | 2018-07-27 | 2018-07-27 | A kind of automobile engine stretching wheel assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749933U true CN208749933U (en) | 2019-04-16 |
Family
ID=66059116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821201969.5U Active CN208749933U (en) | 2018-07-27 | 2018-07-27 | A kind of automobile engine stretching wheel assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208749933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216050A (en) * | 2019-05-31 | 2019-09-10 | 连州市金恒辉玻璃有限公司 | A kind of gluing machine clamp |
-
2018
- 2018-07-27 CN CN201821201969.5U patent/CN208749933U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216050A (en) * | 2019-05-31 | 2019-09-10 | 连州市金恒辉玻璃有限公司 | A kind of gluing machine clamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102413676B (en) | A sealed hub-bearing assembly for agricultural applications | |
| CN105736704A (en) | Lip-shaped oil seal and bearing | |
| CN106050726A (en) | Compressor | |
| CN208749933U (en) | A kind of automobile engine stretching wheel assembly | |
| CN109983244A (en) | Sealing device and hub bearing | |
| CN105179699B (en) | Oil sealing | |
| CN204533223U (en) | Bearing seal structure and seal ring thereof | |
| CN204025367U (en) | With the agricultural machinery bearing support of special seal | |
| CN201401438Y (en) | Automobile air conditioning bearing | |
| CN212959552U (en) | Sealing structure of bearing for belt pulley of decoupler built in automobile generator | |
| CN207229586U (en) | A kind of orientable engineering bearing of self-lubricating | |
| CN110486473B (en) | Novel rotary shaft lip-shaped sealing ring | |
| CN102410334B (en) | The guiding of single hose absorber rod and sealing unit and annular seal assembly | |
| JP2013152017A (en) | Cleaner motor bearing | |
| CN206144997U (en) | A sealed bearing | |
| CN204458821U (en) | Novel double-row deep groove ball bearing | |
| WO2011142217A1 (en) | Ball bearing with both sides sealed | |
| CN206816668U (en) | Support component for agricultural machinery slow-speed shaft | |
| CN204647008U (en) | A kind of high leak tightness automobile clutch bearing sealed ring | |
| CN208185250U (en) | Water-sealed bearing | |
| CN221221430U (en) | Lubricating wear-resistant oil seal | |
| CN205503746U (en) | Novel disjunctor bearing | |
| CN202228677U (en) | High-pressure rotational combined seal ring | |
| CN201714983U (en) | Movable and static ring type framework seal | |
| CN202165396U (en) | Deep groove ball bearing coated with outer wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318054 North of Fengjiang Street Park Middle Road and West of Houhuang Road, Luqiao District, Taizhou City, Zhejiang Province Patentee after: Zhejiang Bahuan Bearing Co., Ltd. Address before: 318050 No. 889 Xin'an West Street, Luqiao District, Taizhou, Zhejiang. Patentee before: Zhejiang Bahuan Bearing Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 318054 North of Fengjiang Street Park Middle Road and West of Houhuang Road, Luqiao District, Taizhou City, Zhejiang Province Patentee after: Bahuan Technology Group Co., Ltd Address before: 318054 North of Fengjiang Street Park Middle Road and West of Houhuang Road, Luqiao District, Taizhou City, Zhejiang Province Patentee before: Zhejiang Bahuan Bearing Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |