CN202381649U - Micro gear box and duplicate gear thereof - Google Patents
Micro gear box and duplicate gear thereof Download PDFInfo
- Publication number
- CN202381649U CN202381649U CN2011204784611U CN201120478461U CN202381649U CN 202381649 U CN202381649 U CN 202381649U CN 2011204784611 U CN2011204784611 U CN 2011204784611U CN 201120478461 U CN201120478461 U CN 201120478461U CN 202381649 U CN202381649 U CN 202381649U
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- gear
- duplicate
- duplicate gear
- convex body
- gear teeth
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Abstract
The utility model relates to a micro gear box and a duplicate gear thereof. The duplicate gear comprises a large gear tooth, a small gear tooth and a rotating shaft, wherein the large gear tooth and the small gear tooth are fixed to each other and are rotated around the rotating shaft. The duplicate gear is characterized in that a convex body is formed in the centre at the end surface of the large gear tooth or the small gear tooth; and the rotating shaft penetrates through the end surface of the other gear tooth. The micro gear box comprises a shell, a motor and a plurality of duplicate gears which are engaged with one another, and is characterized in that one or more duplicate gears of a plurality of duplicate gears are the duplicate gears with convex bodies; the rotating shaft of each duplicate gear with the convex body is plugged into a shaft hole inside the shell; after the convex body is formed on one gear tooth of the duplicate gear, the other end of the rotating shaft of the duplicate gear is not required to be plugged into the shaft hole of the shell, so that the area occupied by the duplicate gear and another engaged duplicate gear is reduced; and therefore, the size of the gear box can be reduced, and the requirement on driving a miniature toy is met.
Description
[technical field]
The gear-box that the utility model relates to a kind of duplicate gear and has this duplicate gear, particularly a kind of duplicate gear of miniature gears case and miniature gears case.
[background technique]
Gear-box is as the mechanical transmission component, and advantage has obtained application widely to rely on its transmission efficiency height, compact structure, velocity ratio is stable and the life-span is long etc.The application of large-scale gear-box in motor is very extensive, in the middle of wind power generating set, just often uses, and its main function is that the transmission of power that wind wheel is produced under wind is given generator and its rotating speed is improved, and the gear-box of this type is used for speedup.Miniature gear-box also is useful in the children toys, will tell that through needs rotating speed of motor lowers, and the gear-box of this type is used for slowing down.
The main feature of epicyclic gearbox transmission is that volume is little; Bearing capacity is big; Stable working, so mostly the miniature gears case that is applied in the children toys is epicyclic gearbox, the inside of epicyclic gearbox is by a plurality of tiny intermesh and the gear of transmission each other constitutes.Its rotation axis of gear in the most epicyclic gearbox is to immobilize, mechanical clock for example, although above all gears all rotating, their center of rotation often through Bearing Installation on the casing of gear-box.These constant speed gears are duplicate gear, and promptly the end face of the gear of two different numbers of teeth links together, and rotate simultaneously around same rotating shaft, have played the effect of slowing down and quickening just because of this gear with different numbers of teeth.
Two gear number of teeth differences are big more up and down for duplicate gear, and then its ratio of quickening perhaps deceleration is big more, when the number of teeth difference of two gears up and down of duplicate gear is big more certainly; The shared area of then single gear is big more; For the very small gear-box of total volume, the number of the duplicate gear that it can hold is more little, in order to make good use of the volume of gear-box to greatest extent; Make the speed change of gear-box maximum; And its transmission efficiency is the highest, in the existing technology only to duplicate gear arrange and the gear ratio up and down of duplicate gear is optimized, other structures of duplicate gear and other structures of gear-box are not improved.So no matter how it optimizes, the size of its transmission efficiency and speed change all can only reach certain level, can not break through its limit.And the volume of the gear-box of this structure also can't be accomplished very little.
[model utility content]
The purpose of the utility model is exactly in order to solve the problem that existing technology exists, to have proposed a kind of duplex tooth and miniature gears case of improved miniature gears case.
The concrete technological scheme of the utility model is following:
The utility model provides a kind of duplicate gear of miniature gears case; This duplicate gear comprises the big gear teeth, the little gear teeth and rotatingshaft; The said big gear teeth and the little gear teeth interfix and rotate around said rotatingshaft; It is characterized in that at the end face center of the big gear teeth or the little gear teeth one convex body is set, said rotatingshaft passes along the end face of another gear teeth.
Said convex body is positioned on the big gear teeth.
Said convex body is positioned on the end face of the bull wheel back of tooth to the little gear teeth.
Said convex body is a ball, and this ball is arranged in the pit at big gear teeth center.
Said pit is a semicircular recess.
The utility model also provides a kind of miniature gears case; This miniature gears case comprises housing, motor, a plurality of intermeshing duplicate gear; It is characterized in that; One or more duplicate gears in a plurality of duplicate gears are the above-mentioned duplicate gear with convex body, and said rotatingshaft with duplicate gear of convex body is plugged in the axis hole of key in the said housing.
The convex body top of said duplicate gear with convex body props up the end face of the big gear teeth of another duplicate gear, the big gear teeth of said duplicate gear with convex body and the little gear teeth meshing of described another duplicate gear.
This gear-box comprises three duplicate gears: first duplicate gear, second duplicate gear and the 3rd duplicate gear; The rotatingshaft of said first duplicate gear passes from the big gear teeth of this first duplicate gear and the end face of the little gear teeth; And the rotatingshaft of said first duplicate gear is interspersed in and is positioned at the inboard axis hole of housing; Said second duplicate gear is the duplicate gear with convex body, and said convex body top props up the end face of the big gear teeth of said first duplicate gear.
Said the 3rd duplicate gear comprises a cylinder tooth and the face tooth coaxial with this cylinder tooth, said the cylindrical gears engagement that tooth is connected with said motor, the cylinder tooth of said the 3rd duplicate gear and the big gear teeth meshing of said first duplicate gear.This gear-box also comprises two output gears, the little gear teeth of said second duplicate gear and output gear engagement, and two output gears are meshing with each other direction of rotation.
Compared to existing technology, the utility model beneficial technical effects is:
After on the gear teeth of duplicate gear convex body being set; Just need not the other end of the rotatingshaft of this duplicate gear also is plugged in the axis hole of housing; Make the shared area of this duplicate gear and another intermeshing duplicate gear reduce; Thereby can reduce the volume of gear-box, satisfy the transmission demand of miniature toys.
After convex body replaces with ball, can reduce to have the frictional force of the duplicate gear and the big gear teeth of another duplicate gear of convex body, reduce the noise of gear-box, the working life of having improved gear-box.
Description of drawings
Fig. 1 is the perspective view of the utility model duplicate gear;
Fig. 2 is the three-dimensional anatomical structure schematic representation of the utility model gear-box;
Fig. 3 is the side anatomical structure schematic representation of the utility model gear-box.
Embodiment
For the purpose, technological scheme and the advantage that make model utility is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explain the utility model, be not used for limiting the utility model.
Embodiment
As shown in Figure 1, present embodiment provides a kind of duplicate gear, and this duplicate gear 10 comprises the big gear teeth 11, steamboat tooth 12 and rotatingshaft 13; The said big gear teeth 11 interfix with steamboat tooth 12 and rotate around said rotatingshaft 13, at the center of the big gear teeth 11 upper-end surfaces one convex body are set, and said convex body is a ball 14; One semicircular recess (indicating among the figure) is set at big center, gear teeth upper-end surface, and in these ball 14 settings and this pit, 13 bottom ends from said steamboat tooth 12 of said rotatingshaft pass; This duplicate gear when mounted; Said rotatingshaft 13 is interspersed in the axis hole, and a said ball and a plane butt are if this duplicate gear is applied in the gear-box of the utility model; Its rotatingshaft is interspersed in and is positioned at the inboard axis hole of gear box casing, and the wheel flank of tooth butt of said ball and another duplicate gear.Certainly, said ball also can with the inboard butt of gear box casing.
Said convex body can not be a ball also, also can be a projection, and the big gear teeth of this projection and this duplicate gear are one-body molded; In order to reduce friction; Best and the static plane butt of this projection, and the big gear teeth butt of the duplicate gear of ball in the present embodiment and rotation is because this ball can roll in said pit; So reduced the frictional force of ball and another duplicate gear bull wheel increment face, and the noise of whole gear-box is also less.
Embodiment 2
Shown in Fig. 2-3; Present embodiment provides a kind of gear-box; This gear-box 20 comprises housing 21, motor 22, first duplicate gear 23, second duplicate gear 24 and the 3rd duplicate gear 25, two output gears 26 and is fixed on the bent axle 27 on the said output gear; Said the 3rd duplicate gear comprise a cylinder tooth 251, with coaxial face tooth 252 of this cylinder tooth and the d-axis 253 that is interspersed in the inboard axis hole of housing; Said cylindrical gears 221 engagements that tooth 252 is connected with said motor 22; The cylinder tooth 251 of said the 3rd duplicate gear and 231 engagements of the big gear teeth of said first duplicate gear; Said first duplicate gear 23 also comprises a steamboat tooth 232 and a rotating shaft 233; The rotatingshaft 233 of said first duplicate gear passes from the end face of the steamboat tooth 232 of the big gear teeth 231 of this first duplicate gear and first duplicate gear; And the rotatingshaft 233 of said first duplicate gear is interspersed in the axis hole (figure does not indicate) that is arranged in housing 21 inboards, and the steamboat tooth 232 of said first duplicate gear and 241 engagements of the big gear teeth of said second duplicate gear 24, said second duplicate gear 24 also comprise steamboat tooth 242 and rotatingshaft (indicating among the figure); The big gear teeth 241 of said second duplicate gear and the steamboat tooth 242 of second duplicate gear interfixes and rotate around the rotatingshaft of said second duplicate gear; Center in the big gear teeth 241 upper-end surfaces of second duplicate gear is provided with a convex body, and said convex body is a ball 243, and a semicircular recess (indicating among the figure) is set at the center, the big gear teeth 241 upper-end surface of second duplicate gear; In these ball 243 settings and this pit; The rotatingshaft of said second duplicate gear only passes from the bottom end of the steamboat tooth 242 of said second duplicate gear, and the rotatingshaft of said second duplicate gear is interspersed in the inboard axis hole of said housing 21 (indicating among the figure), the lower end surface butt of said ball 243 and the big gear teeth 231 of said first duplicate gear 23.
The steamboat tooth 242 of said second duplicate gear and an output gear 26 engagements; Two output gears 26 are meshing with each other; The rotating shaft of each output gear 26 is a bent axle 27; One end of bent axle is plugged in the axis hole of said housing 21 inboards, and the other end is drawn the outside at gear-box, the direction of rotation of two bent axles.
After on the gear teeth of duplicate gear convex body being set; Just need not the other end of the rotatingshaft of this duplicate gear also is plugged in the axis hole of housing; Make the shared area of this duplicate gear and another intermeshing duplicate gear reduce; Thereby can reduce the volume of gear-box, satisfy the transmission demand of miniature toys.
After convex body replaces with ball, can reduce to have the frictional force of the duplicate gear and the big gear teeth of another duplicate gear of convex body, reduce the noise of gear-box, the working life of having improved gear-box.
In a word; Above embodiment is only unrestricted in order to the technological scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technological scheme of the utility model; And not breaking away from the spirit and the scope of the utility model technological scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (10)
1. the duplicate gear of a miniature gears case; This duplicate gear comprises the big gear teeth, the little gear teeth and rotatingshaft; The said big gear teeth and the little gear teeth interfix and rotate around said rotatingshaft; It is characterized in that at the end face center of the big gear teeth or the little gear teeth one convex body is set, said rotatingshaft passes along the end face of another gear teeth.
2. duplicate gear according to claim 1 is characterized in that said convex body is positioned on the big gear teeth.
3. duplicate gear according to claim 2 is characterized in that, said convex body is positioned on the end face of the bull wheel back of tooth to the little gear teeth.
4. duplicate gear according to claim 3 is characterized in that, said convex body is a ball, and this ball is arranged in the pit at big gear teeth center.
5. duplicate gear according to claim 4 is characterized in that, said pit is a semicircular recess.
6. miniature gears case; This miniature gears case comprises housing, motor, a plurality of intermeshing duplicate gear; It is characterized in that; One or more duplicate gears in a plurality of duplicate gears are the arbitrary described duplicate gear with convex body of claim 1-5, and said rotatingshaft with duplicate gear of convex body is plugged in the inboard axis hole of said housing.
7. miniature gears case according to claim 6; It is characterized in that; The convex body top of said duplicate gear with convex body props up the end face of the big gear teeth of another duplicate gear, the big gear teeth of said duplicate gear with convex body and the little gear teeth meshing of described another duplicate gear.
8. miniature gears case according to claim 7; It is characterized in that; This gear-box comprises three duplicate gears: first duplicate gear, second duplicate gear and the 3rd duplicate gear; The rotatingshaft of said first duplicate gear passes from the big gear teeth of this first duplicate gear and the end face of the little gear teeth; And the rotatingshaft of said first duplicate gear is interspersed in and is positioned at the inboard axis hole of housing, and said second duplicate gear is the duplicate gear with convex body, and said convex body top props up the end face of the big gear teeth of said first duplicate gear.
9. miniature gears case according to claim 8; It is characterized in that; Said the 3rd duplicate gear comprises a cylinder tooth and the face tooth coaxial with this cylinder tooth; Said the cylindrical gears engagement that tooth is connected with said motor, the cylinder tooth of said the 3rd duplicate gear and the big gear teeth meshing of said first duplicate gear.
10. miniature gears case according to claim 9 is characterized in that, this gear-box also comprises two output gears, the little gear teeth of said second duplicate gear and output gear engagement, and two output gears are meshing with each other direction of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204784611U CN202381649U (en) | 2011-11-24 | 2011-11-24 | Micro gear box and duplicate gear thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204784611U CN202381649U (en) | 2011-11-24 | 2011-11-24 | Micro gear box and duplicate gear thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381649U true CN202381649U (en) | 2012-08-15 |
Family
ID=46630153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204784611U Withdrawn - After Issue CN202381649U (en) | 2011-11-24 | 2011-11-24 | Micro gear box and duplicate gear thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133638A (en) * | 2011-11-24 | 2013-06-05 | 深圳市兆威机电有限公司 | Duplicate gear of miniature gear case and miniature gear case |
-
2011
- 2011-11-24 CN CN2011204784611U patent/CN202381649U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133638A (en) * | 2011-11-24 | 2013-06-05 | 深圳市兆威机电有限公司 | Duplicate gear of miniature gear case and miniature gear case |
| CN103133638B (en) * | 2011-11-24 | 2016-05-04 | 深圳市兆威机电有限公司 | A kind of duplicate gear of miniature gears case and miniature gears case |
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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: 20120815 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |