CN102808924B - Duplicate gear - Google Patents
Duplicate gear Download PDFInfo
- Publication number
- CN102808924B CN102808924B CN201210311159.6A CN201210311159A CN102808924B CN 102808924 B CN102808924 B CN 102808924B CN 201210311159 A CN201210311159 A CN 201210311159A CN 102808924 B CN102808924 B CN 102808924B
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- China
- Prior art keywords
- gear
- damping
- geared sleeve
- sleeve
- duplicate
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Abstract
The invention relates to a duplicate gear, which comprises a first gear and a second gear, and is characterized by further comprising a gear sleeve which is sleeved on a gear shaft and can rotate relative to the gear shaft, wherein the second gear is fixedly sleeved on the gear sleeve; the first gear is sleeved on the gear sleeve, and is in clearance fit with the gear sleeve; one of opposite contact surfaces between the first gear and the gear sleeve is provided with a groove; and a damping element acting on the first gear and the gear sleeve is placed into a cavity formed by the groove and the other contact surface. When the duplicate gear is in use, the first gear starts rotating relative to the gear sleeve when a moment acting on the first gear is larger than a maximum static friction force moment provided by the damping element, otherwise, the first gear can be connected integrally with the second gear through the gear sleeve, so that transmission or separation can be performed without any clutch when the duplicate gear is applied to a gear transmission mechanism which requires separation and reunion, the overall size is smaller, and the structure is simpler and more compact; and the advantages of the duplicate gear are more remarkable when the duplicate gear is applied to a window opener.
Description
Technical field
The present invention relates to a kind of gear drive, specifically refer to a kind of duplicate gear.
Background technique
At present, it is that two gears are fixedly connected with and are integral that duplicate gear is applied extremely extensive, traditional duplicate gear in mechanical transmission, can not relatively rotate each other, recently changes the rotating speed of output shaft by the different numbers of teeth.
During when it is applied in manually, in electric window-opening device, if Chinese patent notice of authorization number is the < < sliding window electric-manual gearbox > > of CN201297085Y, in this patent documentation, the input gear of duplicate gear and output gear fix, and input gear is meshed with the spiral gear in double reduction gear, output gear is meshed with output tooth bar.In order to possess manually and electronic two kinds of mode of operations, shifting fork mechanism (being equivalent to clutch) is also installed in this gearbox, make one-level gear carry out as required separated or engagement with two-stage gear.
As can be seen here, install after shifting fork mechanism, not only can improve manufacture cost, and overall volume is larger, gearbox cannot be arranged on the electric and manual manipulation window of narrow space.And, for after window is opened, be locked in desired location, also often in window opener, additionally set up snap close, with fixing window position.
Therefore the duplicate gear for being applied at present in the devices such as aforementioned window opener, still awaits further raising.
Summary of the invention
Technical problem to be solved by this invention is for defect of the prior art, and a kind of duplicate gear that first, second gear can be carried out to separation or links into an integrated entity as required in transmission process is provided.
The present invention solves the problems of the technologies described above adopted technological scheme: this duplicate gear, comprise the first gear and the second gear, it is characterized in that: also comprise for being enclosed within on gear shaft and the geared sleeve that can rotate with respect to gear shaft, the second described gear fixed cover is located on this geared sleeve, the first described gear is also set on described geared sleeve, and and this geared sleeve between be Spielpassung, and on one of them surface of contact, have groove in the relative contact of described the first gear and geared sleeve, in the cavity forming between this groove and another surface of contact, be placed with the damping member that acts on the first gear and geared sleeve.
Preferably, described damping member includes damping spring plate and the damping abrasive disc that is designed to arc, the top of described damping spring plate is on the first described gear, two ends are towards described geared sleeve, the one side of described damping abrasive disc is attached on another described surface of contact, and the another side of this damping abrasive disc and described damping spring plate offset.During use, the spring-back force that the deformation by damping spring plate produces provides certain positive pressure to damping abrasive disc, makes to have certain damping force between damping abrasive disc and another surface of contact, thereby can make between the first gear and geared sleeve, to have certain damping.Can certainly select damping member of the prior art.
In above-mentioned preferred version, described damping member can also include damping compressing tablet, this damping compressing tablet described damping spring plate and and damping abrasive disc between.Utilize this damping compressing tablet, can increase the area of contact between damping abrasive disc and geared sleeve, under equal conditions, can improve damping force.The wearing and tearing that simultaneously make damping abrasive disc cause when skidding are more even, can improve the working life of abrasive disc, make damping force more stable.
For the further improvement of above-mentioned preferred version, the two ends of described damping compressing tablet have the flanging of turning up to described damping spring plate side, and the two ends of described damping spring plate are against the bending part of each flanging.Adopt such scheme, can guarantee that the two ends of damping spring plate are pressed on damping compressing tablet reliably.
In above-mentioned each scheme, described groove can be positioned on the first described gear, and this groove has a plurality of, successively along circumferentially uniformly at intervals.Certainly, this groove also can be positioned on geared sleeve, and this groove has a plurality ofly equally, successively along circumferentially uniformly at intervals, adopts the latter, and under equal conditions, damping force can be larger.Thereby the difference of groove location, can obtain different damping forces, so that this duplicate gear is applicable in different occasions.
Be preferably, in above-mentioned each scheme, between the second gear and the end face of the first gear, can also be provided with anti-attrition pad, this anti-attrition pad, can play positioning action to damping member on the one hand, another side can play the effect of anti-attrition when the first gear skids rotation with respect to geared sleeve.
More practical is, in described geared sleeve, be also provided with and fix with geared sleeve and be used for being enclosed within the wear-resistant sleeve on gear shaft, by means of wear-resistant sleeve, can guarantee that geared sleeve rotates around gear shaft swimmingly, can reduce the wearing and tearing of geared sleeve, extend the working life of geared sleeve simultaneously.
Compared with prior art, because the duplicate gear in the present invention has been set up geared sleeve and the damping member between the first gear and geared sleeve, therefore, when the suffered moment of the first gear is greater than the maximum static friction moment that damping member provides, the first gear just starts to rotate with respect to geared sleeve and the second gear, otherwise the first gear can link into an integrated entity by geared sleeve and the second gear, therefore when it is applied to need to occur in the gear drive of clutch, without configuring again clutch, just can carry out as required transmission or separation, so that driving mechanism overall volume is less, structure is simpler, compact, especially be applied to have manually, in the time of in the window opener of electric functions, can protect motor to prevent stall, and in window moving process, after can also window being opened by damping member, there is certain damping force and possess self-lock ability, can realize the self-locking of window under any open angle, thereby without configuring the fixedly parts such as snap close of window position, make window opener holistic cost lower, volume is less, install more flexible.
Accompanying drawing explanation
Fig. 1 is the plan view of the embodiment of the present invention one;
Fig. 2 be in Fig. 1 A-A to sectional view (removing gear shaft);
Fig. 3 is the plan view of the second gear in Fig. 1;
Fig. 4 is the plan view of the first gear in Fig. 1;
Fig. 5 is the plan view of damping spring plate in Fig. 1;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the plan view of damping compressing tablet in Fig. 1;
Fig. 8 is the plan view of Fig. 7;
Fig. 9 is the three-dimensional exploded view of the embodiment of the present invention two;
Figure 10 is that the embodiment of the present invention two is applied to the schematic perspective view in window opener.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment one, as shown in Figures 1 to 8, this duplicate gear comprises the first gear 1, the second gear 2 and geared sleeve 3, wherein, geared sleeve 3 can be enclosed within on gear shaft 4 and can rotate with respect to gear shaft 4, and the second gear 2 fixed covers are located on this geared sleeve 3, in the present embodiment, between the second gear 2 and geared sleeve 3, be interference fit, with this, realize mutual interlock.
The first gear 1 is also set on geared sleeve 3, but be Spielpassung between the first gear 1 and geared sleeve 3, and on one of them surface of contact, have groove in the relative contact of the first gear 1 and geared sleeve 3, in the cavity forming between this groove and another surface of contact, be placed with the damping member that acts on the first gear and geared sleeve, in the present embodiment, groove 11 is positioned on the first gear 1, and has three, successively along circumferentially uniform.
Above-mentioned damping member includes damping spring plate 5 and the damping abrasive disc 7 that is designed to arc, and wherein damping spring plate 5 adopts elastic material to make, and its top is against on the first gear 1, and two ends are towards geared sleeve 3.Damping abrasive disc 7 adopts wear-resisting non-metallic friction materials, and the one side of damping abrasive disc 7 is attached on the side face of geared sleeve 3, and the another side of this damping abrasive disc 7 and damping spring plate 5 offset.In order to increase the area of contact between damping abrasive disc 7 and geared sleeve 3, improve damping force, above-mentioned damping member also includes damping compressing tablet 6, this damping compressing tablet 6 is between damping spring plate 5 and damping abrasive disc 7, the two ends of damping compressing tablet 6 have the flanging 61 of turning up to damping spring plate side, and the two ends of damping spring plate 5 are against the bending part of each flanging.
In order to ensure damping member, reliably locate diametrically, between the second gear 2 and the end face of the first gear 1, be also provided with anti-attrition pad 8, when the first gear skids rotation with respect to geared sleeve, this anti-attrition pad 8 has played the active force of anti-attrition.
In order to extend the working life of geared sleeve, between gear shaft and geared sleeve, be also provided with wear-resistant sleeve 9, here, this wear-resistant sleeve 9 preferably adopts copper material, can make overall dimensions less.Can certainly adopt rolling bearing or unidimensional copper base oil containing bearing to substitute.
During making, can select the material of damping abrasive disc and material and the size of different damping shell fragment of different friction ractor according to the needs of application, regulate positive pressure size, with the damping force that obtains matching with application.In the present embodiment when application,, if when the suffered moment of the first gear is greater than the maximum static friction moment that damping member provides, the first gear just starts to rotate with respect to geared sleeve, otherwise the first gear just links into an integrated entity by geared sleeve and the second gear.
Embodiment two, and as shown in Figure 9, itself and above-mentioned first embodiment's difference are: groove is positioned on geared sleeve 3, and at this moment, the one side of damping abrasive disc is attached on the endoporus surface of contact of the first gear, and now the endoporus surface of contact of the first gear is attrition surface.Damping compressing tablet is positioned at 7 of damping spring plate 5 and damping abrasive discs, and the top of damping spring plate 5 is against on damping compressing tablet 6, and two ends are against the bottom of groove 31.
By test, show, groove is opened on geared sleeve, can obtain larger damping force, when it is applied on window opener, as shown in figure 10, when motor output shaft 10 drives primary speed-down gear train 20 to rotate, the end gear of primary speed-down gear train is meshed with the first gear 1 in this duplicate gear, the second gear 2 is meshed with the head end gear in double-reduction gear group 30, the end gear of two groups of train of reduction gears 30 is connected mutually with one end of pivoted arm 40, pivoted arm 40 the other ends and pedestal 50 are hinged, pedestal 50 is fixed on window frame, motor cabinet 60 is fixed on window, work as like this electric machine rotation, by primary speed-down gear train, duplicate gear and double-reduction gear group are rotated pivoted arm, until window is opened to desired location place, at this moment, active force due to damping member, can make the window after opening there is certain self-lock ability.When if window is opened to maximum position place; or in opening procedure, run into certain resistance, now, if motor is rotated further; make the suffered moment of the first gear be greater than the maximum static friction moment that damping member provides; the first gear just starts with respect to the geared sleeve rotation of skidding, even if motor is rotated further like this, also can not drive pivoted arm to rotate; thereby without clutch; also can realize the termination of transmission, and protect motor, in order to avoid stall damages.
Claims (6)
1. a duplicate gear, comprise the first gear (1) and the second gear (2), it is characterized in that: also comprise for being enclosed within the geared sleeve (3) that gear shaft (4) is upper and can rotate with respect to gear shaft, described the second gear (2) fixed cover is located on this geared sleeve (3), described the first gear (1) is also set on described geared sleeve (3), and and this geared sleeve (3) between be Spielpassung, and on one of them surface of contact, have groove in the relative contact of described the first gear (1) and geared sleeve (3), in the cavity forming between this groove and another surface of contact, be placed with the damping member that acts on the first gear (1) and geared sleeve (3), described damping member includes damping spring plate (5) and the damping abrasive disc (7) that is designed to arc, the top of described damping spring plate (5) is on described the first gear (1), two ends are towards described geared sleeve (3), the one side of described damping abrasive disc (7) is attached on another described surface of contact, the another side of this damping abrasive disc (7) and described damping spring plate (5) offset.
2. duplicate gear according to claim 1, is characterized in that: described damping member also includes damping compressing tablet (6), and this damping compressing tablet is positioned between described damping spring plate (5) and damping abrasive disc (7).
3. duplicate gear according to claim 2, it is characterized in that: the two ends of described damping compressing tablet (6) have the flanging (61) of turning up to described damping spring plate side, the two ends of described damping spring plate (5) are against the bending part of each flanging (61).
4. according to the duplicate gear described in claim 1 or 2 or 3, it is characterized in that: described groove is positioned at that described the first gear (1) is upper or geared sleeve (3) is upper, and this groove have a plurality of, successively along circumferentially uniformly at intervals.
5. according to the duplicate gear described in claim 1 or 2 or 3, it is characterized in that: between described the second gear (2) and the end face of the first gear (1), be also provided with anti-attrition pad (8).
6. duplicate gear according to claim 5, is characterized in that: in described geared sleeve (3), be also provided with geared sleeve (3) and fix and be used for being enclosed within the wear-resistant sleeve (9) on gear shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210311159.6A CN102808924B (en) | 2012-08-28 | 2012-08-28 | Duplicate gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210311159.6A CN102808924B (en) | 2012-08-28 | 2012-08-28 | Duplicate gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102808924A CN102808924A (en) | 2012-12-05 |
| CN102808924B true CN102808924B (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210311159.6A Expired - Fee Related CN102808924B (en) | 2012-08-28 | 2012-08-28 | Duplicate gear |
Country Status (1)
| Country | Link |
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| CN (1) | CN102808924B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994158B (en) * | 2014-06-09 | 2017-01-11 | 北京航空航天大学 | Bidirectional clutch |
| CN107339332B (en) * | 2017-09-11 | 2019-09-27 | 临沭县利鑫机械配件有限公司 | One kind being based on gear-driven bidirectional clutch |
| CN108953530A (en) * | 2018-09-30 | 2018-12-07 | 上海安字实业有限公司 | flexible friction transmission device |
| CN112431910A (en) * | 2020-11-20 | 2021-03-02 | 盐城市鑫海机械有限公司 | Transmission gear with lubricating function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1653242A (en) * | 2002-10-07 | 2005-08-10 | 罗伯特-博希股份公司 | Gearbox device, in particular for actuators in motor vehicles |
| DE102004049837A1 (en) * | 2004-10-13 | 2006-04-20 | Daimlerchrysler Ag | Arrangement of toothed wheels, comprising elastic segments inserted between hubs |
| CN101512192A (en) * | 2006-09-08 | 2009-08-19 | 罗伯特·博世有限公司 | Transmission device |
| DE102008013531A1 (en) * | 2008-03-11 | 2009-09-17 | Robert Bosch Gmbh | Coupling device for adjustment gear for motor vehicle applications, particularly for motor vehicle adjustment gear, has gear element in torque transmitting engagement with another gear element through axial extension between gear elements |
| CN202612522U (en) * | 2012-02-03 | 2012-12-19 | 巫华志 | Parking signal arm power output device |
| CN202833935U (en) * | 2012-08-28 | 2013-03-27 | 宁波市北仑海伯精密机械制造有限公司 | Duplicate gear |
-
2012
- 2012-08-28 CN CN201210311159.6A patent/CN102808924B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1653242A (en) * | 2002-10-07 | 2005-08-10 | 罗伯特-博希股份公司 | Gearbox device, in particular for actuators in motor vehicles |
| DE102004049837A1 (en) * | 2004-10-13 | 2006-04-20 | Daimlerchrysler Ag | Arrangement of toothed wheels, comprising elastic segments inserted between hubs |
| CN101512192A (en) * | 2006-09-08 | 2009-08-19 | 罗伯特·博世有限公司 | Transmission device |
| DE102008013531A1 (en) * | 2008-03-11 | 2009-09-17 | Robert Bosch Gmbh | Coupling device for adjustment gear for motor vehicle applications, particularly for motor vehicle adjustment gear, has gear element in torque transmitting engagement with another gear element through axial extension between gear elements |
| CN202612522U (en) * | 2012-02-03 | 2012-12-19 | 巫华志 | Parking signal arm power output device |
| CN202833935U (en) * | 2012-08-28 | 2013-03-27 | 宁波市北仑海伯精密机械制造有限公司 | Duplicate gear |
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| Publication number | Publication date |
|---|---|
| CN102808924A (en) | 2012-12-05 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Address after: 315800 Songshan Road, Beilun District, Zhejiang, No. 1299, No. Patentee after: Ningbo Haibo Group Co. Ltd. Address before: 315800 Songshan Road, Beilun District, Zhejiang, No. 1299, No. Patentee before: Beicang Haibo Fine Machinery Mfg. Co., Ltd., Ningbo |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20190828 |