CN201587385U - Axial fixing structure for motor rotor of windscreen wiper - Google Patents
Axial fixing structure for motor rotor of windscreen wiper Download PDFInfo
- Publication number
- CN201587385U CN201587385U CN2009203140380U CN200920314038U CN201587385U CN 201587385 U CN201587385 U CN 201587385U CN 2009203140380 U CN2009203140380 U CN 2009203140380U CN 200920314038 U CN200920314038 U CN 200920314038U CN 201587385 U CN201587385 U CN 201587385U
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- CN
- China
- Prior art keywords
- rotor
- axial
- wiper
- fixed support
- axial restraint
- 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 a windscreen wiper, in particular to an axial fixing structure for a motor rotor of the windscreen wiper. The axial fixing structure comprises a casing 5 of a reduction gearbox of the windscreen wiper and a fixing support 3 in slide fit with the casing 5; in addition, one side of the fixing support 3 is in contact with a rotor shaft head 6, and the other side of the fixing support 3 is in contact with the casing 5 through a cushion structure in the axial direction of the motor rotor. The axial fixing structure compensates the wearing capacity and buffers the axial impulsive force through the cushion structure, so that the shifting noise can be avoided effectively. The axial fixing structure is suitable for the axial fixation of the rotor shaft head part sticking into the reduction gearbox of the windscreen wiper on a motor of the windscreen wiper for a windshield of a vehicle.
Description
Technical field
The utility model relates to a kind of wiper, especially a kind of axial restraint structure of wiper rotor.
Background technology
Windshield has generally all been installed the wiper assembly outward, makes things convenient for the rainy day to observe the outer situation of car.The wiper assembly generally comprises three parts such as drive motor, gear reduction, connecting rod mechanism.Behind the electrical power, rotor is high speed revolution under the magnetic action in magnetic field, by the gear reduction structure motor speed is reduced to per minute tens commentaries on classics, reach actual operating needs, by connecting rod mechanism the circular movement of gear is changed into the reciprocating machine motion again, realize that wiper does at the hydrodynamic(al) of back and forth scraping on glass.
The mouth of existing rain shaving electrical machine rotor promptly stretches out the outer part of motor and all comprises worm structure with the rotor shaft integral type usually, therefore the spindle nose for the rotor mouth all needs to carry out axial restraint, thereby guarantees cooperating of above-mentioned worm screw and gear reduction structure.Existing mouth spindle nose axial restraint all is to fix by the mode that the spindle nose end of stretching out at rotor is provided with locating piece, portals as processing on the drop-gear box housing, and injection-moulded plastic in the hole wraps rotor tip; Plastic cap or metal backing perhaps are set, and it is first-class to be fixed in housing with modes such as screws again.But aforesaid way all belongs to hard contact location because the reciprocating of wiper, make worm screw also be rotor axially being subjected to periodically reciprocating power, cause the rotor axial impact wear, the axial location gap appears, produce impact noise, also be the play noise.
The utility model content
In order to overcome existing deficiency, technical problem to be solved in the utility model provides a kind of axial restraint structure of avoiding the wiper rotor of play noise.
The technical scheme that its technical matters that solves the utility model adopts is: the axial restraint structure of wiper rotor comprises the housing of wiper drop-gear box being provided with the fixed support with the housing bearing fit; Axial along rotor, fixed support one side contacts with the rotor spindle nose, and opposite side contacts with housing by buffer structure.
The beneficial effects of the utility model are: remedied abrasion loss by the buffer structure elongation that is in compressive state, and buffer structure has certain elasticity, can cushion the axial impact force that produces in the rotor running, the impact noise that can avoid rotor shifting to cause effectively.
Description of drawings
Fig. 1 is the birds-eye view that is assembled in the wiper of the present utility model;
Fig. 2 is the a-quadrant partial enlarged drawing of Fig. 1;
Fig. 3 is the right back graphics of pad of the present utility model, fixed support, damping rubber block;
Fig. 4 is the left back graphics of pad of the present utility model, fixed support, damping rubber block.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the axial restraint structure of wiper rotor of the present utility model comprises the housing 5 of wiper drop-gear box being provided with the fixed support 3 with housing 5 bearing fits; Axial along rotor, fixed support 3 one sides contact with rotor spindle nose 6, and opposite side contacts with housing 5 by buffer structure.
Remedied abrasion loss by the buffer structure elongation that is in compressive state, and buffer structure has certain elasticity, can cushion the axial impact force that produces in the rotor running, the impact noise that can avoid rotor shifting to cause effectively.
Axially consistent for the direction that guarantees bearing fit and rotor, said fixing support 3 by guide frame and housing 5 along the axial bearing fit of rotor.
Concrete, above-mentioned guide frame is arranged on the chute 32 of both sides, fixed support 3 top, and is arranged on the supporting walls 2 that matches with both sides chute 32 respectively on the housing 5.Certainly guide frame also can adopt hole and guide pillar and other forms, but adopts the form dismounting of chute 32 and supporting walls 2 more convenient, only need mention fixed support 3 and can take out.
Axially consistent for the direction that guarantees buffer structure power and rotor, above-mentioned buffer structure are fixed in the blind hole 33 that fixed support 3 upper edge rotors axially are provided with and stretch out outside the blind hole 33.
Concrete, above-mentioned buffer structure is the damping rubber block 4 with blind hole 33 interference fit.It also is dismounting for convenience, replacing that damping rubber block 4 is fixed on the fixed support 3.
Concrete, the projection 41 and blind hole 33 interference fit of above-mentioned damping rubber block 4 by making progress in its week.Avoided the use of screw, mode such as bonding, the assembling difficulty of having avoided whole interference fit to cause, dismounting, change more convenient.
Because fixed support 3 is subjected to the axial impact of rotor spindle nose for a long time, safeguard that for convenience reduce maintenance cost, said fixing support 3 contacts with rotor spindle nose 6 by pad 1.Only need change pad 1 when therefore needing gets final product.
Concrete, dismounting for convenience, replacing, above-mentioned pad 1 is fixed on the fixed support 3 by grab 31.
Further,, guarantee the force direction that is subjected to of buffer structure, be provided with and be fixed on rotor spindle nose 6 and the cone 61 coaxial that above-mentioned pad 1 contacts with 6 of rotor spindle noses by cone 61 with it in order to guarantee contacting of pad and rotor spindle nose 6.Contact point is positioned on the axis of rotor spindle nose 2, has guaranteed the stress deformation direction of buffer structure, has guaranteed the normal operation of device.
Claims (9)
1. the axial restraint structure of wiper rotor comprises it is characterized in that the housing (5) of wiper drop-gear box: be provided with the fixed support (3) with housing (5) bearing fit; Axial along rotor, fixed support (3) one sides contact with rotor spindle nose (6), and opposite side contacts with housing (5) by buffer structure.
2. the axial restraint structure of wiper rotor as claimed in claim 1 is characterized in that: described fixed support (3) by guide frame and housing (5) along the axial bearing fit of rotor.
3. the axial restraint structure of wiper rotor as claimed in claim 2, it is characterized in that: described guide frame is arranged on the chute (32) of fixed support (3) both sides, top, and is arranged on the supporting walls (2) that matches with both sides chute (32) respectively on the housing (5).
4. the axial restraint structure of wiper rotor as claimed in claim 1 or 2 is characterized in that: described buffer structure is fixed in the axial blind hole (33) that is provided with of fixed support (3) upper edge rotor and stretches out outside the blind hole (33).
5. the axial restraint structure of wiper rotor as claimed in claim 4 is characterized in that: described buffer structure is the damping rubber block (4) with blind hole (33) interference fit.
6. the axial restraint structure of wiper rotor as claimed in claim 5 is characterized in that: projection (41) that described damping rubber block (4) made progress by its week and blind hole (33) interference fit.
7. the axial restraint structure of wiper rotor as claimed in claim 1 is characterized in that: described fixed support (3) contacts with rotor spindle nose (6) by pad (1).
8. the axial restraint structure of wiper rotor as claimed in claim 7 is characterized in that: described pad (1) is fixed on the fixed support (3) by grab (31).
9. as the axial restraint structure of claim 7 or 8 described wiper rotors, it is characterized in that: be provided with and be fixed on rotor spindle nose (6) and the cone (61) coaxial with it, described pad (1) contacts with rotor spindle nose (6) point by cone (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203140380U CN201587385U (en) | 2009-11-04 | 2009-11-04 | Axial fixing structure for motor rotor of windscreen wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203140380U CN201587385U (en) | 2009-11-04 | 2009-11-04 | Axial fixing structure for motor rotor of windscreen wiper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201587385U true CN201587385U (en) | 2010-09-22 |
Family
ID=42747149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203140380U Expired - Fee Related CN201587385U (en) | 2009-11-04 | 2009-11-04 | Axial fixing structure for motor rotor of windscreen wiper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201587385U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128486A1 (en) * | 2017-12-25 | 2019-07-04 | 广州极飞科技有限公司 | Driving device, spraying device, and unmanned aerial vehicle |
| CN114183517A (en) * | 2021-12-24 | 2022-03-15 | 成都华川电装有限责任公司 | Mounting structure of windscreen wiper motor reduction gear axle |
-
2009
- 2009-11-04 CN CN2009203140380U patent/CN201587385U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128486A1 (en) * | 2017-12-25 | 2019-07-04 | 广州极飞科技有限公司 | Driving device, spraying device, and unmanned aerial vehicle |
| CN114183517A (en) * | 2021-12-24 | 2022-03-15 | 成都华川电装有限责任公司 | Mounting structure of windscreen wiper motor reduction gear axle |
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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: 20100922 Termination date: 20171104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |