CN202674096U - Spacer bush dustproof structure of electromagnetic clutch - Google Patents
Spacer bush dustproof structure of electromagnetic clutch Download PDFInfo
- Publication number
- CN202674096U CN202674096U CN 201220390441 CN201220390441U CN202674096U CN 202674096 U CN202674096 U CN 202674096U CN 201220390441 CN201220390441 CN 201220390441 CN 201220390441 U CN201220390441 U CN 201220390441U CN 202674096 U CN202674096 U CN 202674096U
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- China
- Prior art keywords
- bearing
- front cover
- spacer
- spacer bush
- magnetic receiver
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- Expired - Lifetime
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Abstract
The utility model discloses a spacer bush dustproof structure of an electromagnetic clutch, which comprises a front cover bearing, a spacer bush and a magnetic base bearing, which are sequentially mounted on a driving shaft in a sleeving manner, wherein the front cover bearing is fixed together with a front cover; and an outer ring of the magnetic base bearing is fixed together with a magnetic base. The spacer bush dustproof structure is characterized in that inner cavities of both the front cover and the magnetic base, positioned at the spacer bush, is located on the same circumferential surface; a circle of cone with surface adjacent with the front cover and the cavity of the magnetic base is arranged at the middle of the spacer bush; and a labyrinth structure is arranged between the cone outer surface and the surfaces of the inner cavities of the front cover and the magnetic base. Compared with the prior art, the spacer bush dustproof structure can effectively prevent dust from entering the lip of the bearing shield, reduces friction to the dustproof sealing lip due to the dust, prevents loss of the lubricating grease of the bearing, and effectively improves the service life of the bearing. Meanwhile, the structure has the advantages of simple structure, convenience in implementation, and low cost.
Description
Technical field
The utility model relates to a kind of magnetic clutch, especially a kind of magnetic clutch spacer dustproof construction.
Background technique
Magnetic clutch is the Engage and disengage that comes solenoidoperated cluthes by the power on/off of coil.The structure of traditional magnetic clutch mainly is comprised of Front Cover Bearing 1, protecgulum 2, spacer 3, magnetic receiver 4, magnetic receiver bearing 5, yoke bearing 6, yoke 7, driving shaft 8 etc. as shown in Figure 3.
In traditional magnetic clutch, spacer is the member that both is separated between Front Cover Bearing and the magnetic receiver bearing, in traditional magnetic clutch, in order to save material, spacer is the less drum of thickness, also leaves larger space between the inner chamber of spacer and protecgulum and magnetic receiver.
Because the particularity of clutch configuration design can not realize hermetically sealed design, in clutch working procedure (the automobile working environment is more abominable) or when not working, always have dust or mud enters in the clutch.Cause so in use, the dust easily gap between protecgulum and magnetic receiver enters into the cavity of spacer appearance, slowly deposit, at this moment dust or the mud of deposition will contact and rub with the dust-proof seal ring lip of bearing face, cause the quick abrasion of lip, and lubricating grease oozes in the bearing race, form the dry friction heating and cause bearing to be burnt to death or broken invalid, dust or mud can enter bearing inner race simultaneously, accelerate bearing abrasion and heating, make the bearing rapid failure.
The model utility content
For above-mentioned deficiency, technical problem to be solved in the utility model is, how to provide a kind of dust that can effectively prevent to enter into the magnetic clutch spacer dustproof construction in Front Cover Bearing and the magnetic receiver bearing, improves bearing working life.
In order to solve the problems of the technologies described above, adopted following technological scheme in the utility model.
A kind of magnetic clutch spacer dustproof construction, comprise the Front Cover Bearing, spacer and the magnetic receiver bearing that are set in successively on the driving shaft, Front Cover Bearing outer ring and protecgulum are fixed, magnetic receiver bearing outer ring and magnetic receiver are fixed, it is characterized in that, described protecgulum and magnetic receiver are positioned at the inner chamber at spacer place on same circumferential surface, and described spacer middle part has the circle surface round platform adjacent with the magnetic receiver inner chamber with protecgulum, is provided with maze-type structure between described round platform outer surface and protecgulum and the magnetic receiver surface of internal cavity.
In the utility model, set up round platform at the spacer middle part, then between round platform and protecgulum and magnetic receiver, maze-type structure is set.Can prevent effectively that like this dust from entering into the bearing shield lip, reduce because dust enters the abrasion that makes the dust sealing lip, prevent that bearing grease runs off, Effective Raise bearing life.
As optimization, described maze-type structure comprises on the round platform outer surface major ring groove that arranges over against the position in protecgulum and magnetic receiver gap, respectively has at least one inner loop groove on the round platform of major ring groove both sides.This maze-type structure has simple in structure, and setup cost is cheap, dustproof effective characteristics.Certain described maze-type structure can also be other structural type, such as the quantity that changes annular groove or the relative position of annular groove, perhaps at another relative sidewall of annular groove corresponding projection etc. structure is set.
In sum, than prior art, the utility model effectively blocks dust enters the bearing shield lip, has reduced because dust enters the abrasion that makes the dust sealing lip, prevents that bearing grease runs off, and has improved bearing life effectively.Simultaneously, possess simple in structurely, implement the advantages such as convenient, with low cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged diagram of I place partial structurtes among Fig. 1.
Fig. 3 is the structural representation of traditional magnetic clutch.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
During implementation, as depicted in figs. 1 and 2, a kind of magnetic clutch spacer dustproof construction, comprise the Front Cover Bearing 1, spacer 3 and the magnetic receiver bearing 5 that are set in successively on the driving shaft, Front Cover Bearing 1 outer ring and protecgulum 2 are fixing, magnetic receiver bearing 5 outer rings and magnetic receiver 4 are fixing, wherein, described protecgulum 2 and magnetic receiver 4 are positioned at the inner chamber at spacer place on same circumferential surface, described spacer 3 middle parts have the circle surface round platform adjacent with magnetic receiver 4 inner chambers with protecgulum 2, are provided with maze-type structure between described round platform outer surface and protecgulum and the magnetic receiver surface of internal cavity.In the present embodiment, described maze-type structure comprises on the round platform outer surface major ring groove 6 that arranges over against the position in protecgulum and magnetic receiver gap, respectively has at least one inner loop groove 7 on the round platform of major ring groove 6 both sides.
When the utility model uses, when dust or mud enter in the clutch, owing to be designed with the mazy type dustproof construction, when dust or mud enter the spacer of clutch by clearance channel, collected by the major ring groove on the spacer round platform, stoped dust or mud to enter bearing face.Produce when clutch is worked on the other hand and rotatablely move, be deposited on dust and mud in the spacer round platform major ring groove, under the rotary centrifugal force effect, dished out, also have simultaneously the attempt of dust air-flow and enter bearing face by labyrinth sealing, but owing to being designed with second inner loop groove, stoped entering of dust, dust is through the dustproof annular groove retardance of twice like this, enter at last the dust of bearing face seldom, and the dust granules that enters is very little very little, effectively raise dust-proof effect, greatly improved the working life of bearing.
Claims (2)
1. magnetic clutch spacer dustproof construction, comprise the Front Cover Bearing, spacer and the magnetic receiver bearing that are set in successively on the driving shaft, Front Cover Bearing outer ring and protecgulum are fixed, magnetic receiver bearing outer ring and magnetic receiver are fixed, it is characterized in that, described protecgulum and magnetic receiver are positioned at the inner chamber at spacer place on same circumferential surface, described spacer middle part has the circle surface round platform adjacent with the magnetic receiver inner chamber with protecgulum, is provided with maze-type structure between described round platform outer surface and protecgulum and the magnetic receiver surface of internal cavity.
2. magnetic clutch spacer dustproof construction as claimed in claim 1, it is characterized in that, described maze-type structure comprises on the round platform outer surface major ring groove that arranges over against the position in protecgulum and magnetic receiver gap, respectively has at least one inner loop groove on the round platform of major ring groove both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390441 CN202674096U (en) | 2012-08-08 | 2012-08-08 | Spacer bush dustproof structure of electromagnetic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390441 CN202674096U (en) | 2012-08-08 | 2012-08-08 | Spacer bush dustproof structure of electromagnetic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674096U true CN202674096U (en) | 2013-01-16 |
Family
ID=47495003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220390441 Expired - Lifetime CN202674096U (en) | 2012-08-08 | 2012-08-08 | Spacer bush dustproof structure of electromagnetic clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782277A (en) * | 2014-12-23 | 2016-07-20 | 华域三电汽车空调有限公司 | Electromagnetic clutch |
-
2012
- 2012-08-08 CN CN 201220390441 patent/CN202674096U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782277A (en) * | 2014-12-23 | 2016-07-20 | 华域三电汽车空调有限公司 | Electromagnetic clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |