CN202833935U - Duplicate gear - Google Patents
Duplicate gear Download PDFInfo
- Publication number
- CN202833935U CN202833935U CN 201220429992 CN201220429992U CN202833935U CN 202833935 U CN202833935 U CN 202833935U CN 201220429992 CN201220429992 CN 201220429992 CN 201220429992 U CN201220429992 U CN 201220429992U CN 202833935 U CN202833935 U CN 202833935U
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- CN
- China
- Prior art keywords
- gear
- damping
- geared sleeve
- sleeve
- duplicate
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a duplicate gear which comprises a first gear and a second gear. The duplicate gear is characterized by further comprising a gear sleeve used for being sleeved on a gear shaft and capable of rotating relative to the gear shaft. The second gear is fixedly sleeved on the gear sleeve, and the first gear is sleeved on the gear sleeve and is in clearance fit with the gear sleeve. One of relative contact faces of the first gear and the gear sleeve is provided with a groove, a cavity is formed by the groove and the other contact face and is used for containing a damping element acting on the first gear and the gear sleeve. In the using process, when force moment of the first gear is larger than the force moment of the largest static friction force provided by the damping element, the first gear starts to rotate relative to the gear sleeve, otherwise the first gear is connected with the second gear into a whole through the gear sleeve. Therefore, when the duplicate gear is applied to a gear transmission mechanism which needs to separate and combine, transmission or separation can be carried out without a clutch so that the whole size is smaller, structure is simpler and compacter, the advantages of the duplicate gear is especially obvious when applied to a window opener.
Description
Technical field
The utility model relates to a kind of gear drive, specifically refers to a kind of duplicate gear.
Background technique
At present, duplicate gear is used extremely extensive, traditional duplicate gear in mechanical transmission be two gears to be fixedly connected be integral, and can not relatively rotate each other, recently changes the rotating speed of output shaft by the different numbers of teeth.
When it is applied in manually, in the electric window-opening device time, number be CN201297085Y " sliding window electric-manual gearbox " such as the Chinese patent notice of authorization, the input gear of duplicate gear and output gear fix in this patent documentation, and input gear is meshed with spiral gear in the double reduction gear, and output gear is meshed with the output tooth bar.In order to possess manually and electronic two kinds of mode of operations, shifting fork mechanism (namely being equivalent to clutch) also is installed in this gearbox, the one-level gear is separated as required with the two-stage gear or mesh.
This shows, behind the installation shifting fork mechanism, not only can improve manufacture cost, and overall volume is larger, gearbox can't be installed on the electric and manual manipulation window of narrow space.And, be locked on the desired location for after window is opened, also often in window opener, additionally set up snap close, with fixing window position.
So the duplicate gear for being applied at present in the device such as aforementioned window opener still awaits further raising.
The model utility content
Technical problem to be solved in the utility model is for defective of the prior art, and a kind of duplicate gear that first, second gear can be separated as required or links into an integrated entity in transmission process is provided.
The utility model solves the problems of the technologies described above the technological scheme that adopts: this duplicate gear, comprise the first gear and the second gear, it is characterized in that: also comprising being enclosed within also can be with respect to the geared sleeve of gear shaft rotation on the gear shaft, described the second gear fixed cover is located on this geared sleeve, described the first gear also is set on the described geared sleeve, and and this geared sleeve between be Spielpassung, and one of them surface of contact has groove in the relative contact of described the first gear and geared sleeve, is placed with the damping member that acts on the first gear and geared sleeve in the cavity that forms between this groove and another surface of contact.
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 described the first gear, two ends are towards described geared sleeve, the one side of described damping abrasive disc is attached on described another 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 the damping abrasive disc, makes between damping abrasive disc and another surface of contact to have certain damping force, has certain damping between the first gear and the geared sleeve thereby can make.Can certainly select damping member of the prior art.
In above-mentioned preferred version, described damping member can also include the damping compressing tablet, this damping compressing tablet described damping spring plate and and the damping abrasive disc between.Utilize this damping compressing tablet, can increase the area of contact between damping abrasive disc and the geared sleeve, under equal conditions, can improve damping force.The wearing and tearing that the damping abrasive disc is caused 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 the damping compressing tablet reliably.
In above-mentioned each scheme, described groove can be positioned on described the first gear, and this groove has a plurality of, successively along circumferentially uniformly at intervals.Certainly, this groove also can be positioned on the 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 on the different occasions.
Be preferably, in above-mentioned each scheme, between the end face of the second gear and the first gear, can also be provided with the 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 with respect to geared sleeve when rotating.
Practical is, also be provided with the wear-resistant sleeve that fixes and be used for being enclosed within geared sleeve on the gear shaft in the described geared sleeve, by means of wear-resistant sleeve, can guarantee that geared sleeve rotates around gear shaft swimmingly, can reduce simultaneously the wearing and tearing of geared sleeve, prolong the working life of geared sleeve.
Compared with prior art; because the duplicate gear in the utility model has been set up geared sleeve and the damping member between the first gear and geared sleeve; therefore; when maximum static friction moment that the suffered moment of the first gear provides greater than damping member; the first gear just begins 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; so when it is applied to need to occur in the gear drive of clutch; need not to dispose again clutch; just can carry out as required transmission or separation; so that the 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 the window moving process; have certain damping force after can also window being opened by damping member and possess self-lock ability; can realize the self-locking of window under any open angle; thereby need not to dispose the fixedly parts such as snap close of window position; make the window opener holistic cost lower; volume is less, installs more flexible.
Description of drawings
Fig. 1 is the utility model embodiment one plan view;
Fig. 2 be among Fig. 1 A-A to sectional view (removing gear shaft);
Fig. 3 is the plan view of the second gear among Fig. 1;
Fig. 4 is the plan view of the first gear among Fig. 1;
Fig. 5 is the plan view of damping spring plate among Fig. 1;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the plan view of damping compressing tablet among Fig. 1;
Fig. 8 is the plan view of Fig. 7;
Fig. 9 is the utility model embodiment two three-dimensional exploded view;
Figure 10 is that the utility model embodiment two is applied to the schematic perspective view in the window opener.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one, extremely shown in Figure 8 such as Fig. 1, 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 the 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, be interference fit between the second gear 2 and the geared sleeve 3, realize mutual interlock with this.
The first gear 1 also is set on the geared sleeve 3, but be Spielpassung between the first gear 1 and the geared sleeve 3, and one of them surface of contact has groove in the relative contact of the first gear 1 and geared sleeve 3, be placed with the damping member that acts on the first gear and geared sleeve in the cavity that forms between this groove and another surface of contact, 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 the 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 the damping spring plate side, and the two ends of damping spring plate 5 are against the bending part of each flanging.
Reliably locate diametrically in order to ensure damping member, also be provided with anti-attrition pad 8 between the end face of the second gear 2 and the first gear 1, when the first gear skidded rotation with respect to geared sleeve, this anti-attrition pad 8 had played the active force of anti-attrition.
In order to prolong the working life of geared sleeve, between gear shaft and geared sleeve, also be provided with wear-resistant sleeve 9, here, these wear-resistant sleeve 9 preferred copper materials that adopt can make overall dimensions less.Can certainly adopt rolling bearing or unidimensional copper base oil containing bearing to substitute.
During making, can be according to the needs of application, select the material of damping abrasive disc of different friction ractor and material and the size of different damping shell fragment, regulate the positive pressure size, with the damping force that obtains being complementary with the application.When present embodiment was used, if during the maximum static friction moment that the suffered moment of the first gear provides greater than damping member, the first gear just began 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 the 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 namely the endoporus surface of contact of the first gear is attrition surface at this moment.The 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 the damping compressing tablet 6, and two ends are against the bottom of groove 31.
Show by test, groove is opened on the geared sleeve, can obtain larger damping force, when it is applied on the window opener, as shown in figure 10, when motor output shaft 10 drives 20 rotation of primary speed-down gear train, the terminal 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 head end gear in the double-reduction gear group 30, the terminal gear of two groups of train of reduction gears 30 is connected mutually with an end of pivoted arm 40, pivoted arm 40 the other ends and pedestal 50 are hinged, pedestal 50 is fixed on the window frame, motor cabinet 60 is fixed on the window, works as like this electric machine rotation, by the primary speed-down gear train, duplicate gear and double-reduction gear group are rotated pivoted arm, until window is opened to the desired location place, at this moment, because the active force of damping member can make the window after opening have certain self-lock ability.When if window is opened to the maximum position place; or in opening procedure, run into certain resistance, at this moment, if motor is rotated further; the maximum static friction moment that the suffered moment of the first gear is provided greater than damping member; the first gear just begins with respect to the geared sleeve rotation of skidding, even motor is rotated further like this, also can drive pivoted arm and rotate; thereby need not clutch; also can realize the termination of transmission, and protect motor, in order to avoid stall damages.
Claims (7)
1. duplicate gear, comprise the first gear (1) and the second gear (2), it is characterized in that: also comprising being enclosed within gear shaft (4) upward also can be with respect to the geared sleeve (3) of gear shaft rotation, described the second gear (2) fixed cover is located on this geared sleeve (3), described the first gear (1) also is set on the described geared sleeve (3), and and this geared sleeve (3) between be Spielpassung, and one of them surface of contact has groove in the relative contact of described the first gear (1) and geared sleeve (3), is placed with the damping member that acts on the first gear (1) and geared sleeve (3) in the cavity that forms between this groove and another surface of contact.
2. duplicate gear according to claim 1, it is characterized in that: 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 described another surface of contact, and the another side of this damping abrasive disc (7) and described damping spring plate (5) offset.
3. duplicate gear according to claim 2, it 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 the damping abrasive disc (7).
4. duplicate gear according to claim 3, 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, and the two ends of described damping spring plate (5) are against the bending part of each flanging (61).
5. according to claim 1 and 2 or 3 or 4 described duplicate gears, it is characterized in that: described groove is positioned on the upper or geared sleeve (3) of described the first gear (1), and this groove have a plurality of, successively along circumferentially uniformly at intervals.
6. it is characterized in that: between the end face of described the second gear (2) and the first gear (1), also be provided with anti-attrition pad (8) according to claim 1 and 2 or 3 or 4 described duplicate gears.
7. duplicate gear according to claim 6 is characterized in that: also be provided with in the described geared sleeve (3) with geared sleeve (3) and fix and be used for being enclosed within wear-resistant sleeve (9) on the gear shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429992 CN202833935U (en) | 2012-08-28 | 2012-08-28 | Duplicate gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429992 CN202833935U (en) | 2012-08-28 | 2012-08-28 | Duplicate gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833935U true CN202833935U (en) | 2013-03-27 |
Family
ID=47945644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220429992 Withdrawn - After Issue CN202833935U (en) | 2012-08-28 | 2012-08-28 | Duplicate gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808924A (en) * | 2012-08-28 | 2012-12-05 | 宁波市北仑海伯精密机械制造有限公司 | Duplicate gear |
| CN105937600A (en) * | 2015-12-19 | 2016-09-14 | 綦江祥和机械有限公司 | Novel gear |
-
2012
- 2012-08-28 CN CN 201220429992 patent/CN202833935U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808924A (en) * | 2012-08-28 | 2012-12-05 | 宁波市北仑海伯精密机械制造有限公司 | Duplicate gear |
| CN102808924B (en) * | 2012-08-28 | 2014-12-03 | 宁波市北仑海伯精密机械制造有限公司 | Duplicate gear |
| CN105937600A (en) * | 2015-12-19 | 2016-09-14 | 綦江祥和机械有限公司 | Novel gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130327 Effective date of abandoning: 20141203 |
|
| RGAV | Abandon patent right to avoid regrant |