CN105697697A - Coaxial driving and speed changing device - Google Patents
Coaxial driving and speed changing device Download PDFInfo
- Publication number
- CN105697697A CN105697697A CN201610272201.6A CN201610272201A CN105697697A CN 105697697 A CN105697697 A CN 105697697A CN 201610272201 A CN201610272201 A CN 201610272201A CN 105697697 A CN105697697 A CN 105697697A
- Authority
- CN
- China
- Prior art keywords
- wheel assembly
- big wheel
- speed change
- change gear
- driving
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
- F16H7/023—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts with belts having a toothed contact surface or regularly spaced bosses or hollows for slipless or nearly slipless meshing with complementary profiled contact surface of a pulley
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
The invention relates to a coaxial driving and speed changing device. The device comprises a bull wheel assembly, a small wheel, a driving belt or a belting chain, and a supporting shaft, wherein a notch is formed in the bull wheel assembly, and is used for giving way to the small wheel and the driving belt or the belting chain. The bull wheel assembly, the small wheel and the supporting shaft share one rotating shaft. The bull wheel assembly and the small wheel are respectively a driving wheel or a driven wheel, and are driven by the driving belt or the driving chain to rotate around the common rotating shaft. The device has the main purposes of solving the problem that the center distance in the traditional belt driving or chain driving limits the minimum size of a belt driving or chain driving device, and ensures that the driving device is smaller, the weight is smaller and the cost is lower.
Description
Technical field
Mechanical transmission fields。
Background technology
V belt translation in conventional mechanical transmission and chain and sprocket driving device by drivewheel, driven pulley, transmission band or driving-chain, for supporting the structural feature such as support axle and the frame of driven wheel, the centre-to-centre spacing of drivewheel and driven pulley is typically larger than the radius sum of driven wheel, being necessarily greater than 0, frame is necessarily greater than centre-to-centre spacing along the minimum dimension in centre-to-centre spacing direction。Above-mentioned centre-to-centre spacing requires to limit the minimum dimension of V belt translation and chain and sprocket driving device。
Summary of the invention
In order to solve the centre-to-centre spacing restricted problem to V belt translation and chain and sprocket driving device minimum dimension sum in traditional belt-driven and Chain conveyer, disclosure one coaxial transmission and speed change gear, driven wheel has common axis of rotation, is driven by transmission band or driving-chain and realizes transmission and speed change on common axis of rotation。
The invention has the beneficial effects as follows, a kind of coaxial transmission disclosed by the invention and speed change gear, its driven wheel centre-to-centre spacing is 0, and compared with traditional belt-driven or chain and sprocket driving device, coaxial transmission and the speed change gear of the present invention are smaller and more exquisite。
Below in conjunction with drawings and Examples, the present invention is further described。
The embodiment 1 of a kind of coaxial transmission and speed change gear, including big wheel assembly 1, steamboat 2, transmission band or driving-chain 3, supports axle 4, and big wheel assembly 1, steamboat 2 and support axle 4 have common axis of rotation (Fig. 1)。Big wheel assembly 1 includes big wheel assembly 11, transition wheel 12, and big wheel assembly 1 can be connected with supporting axle 4 or be not attached to；Big wheel assembly 11 includes big wheel carrier 111, bull wheel 112, transition wheel shaft 113, and big wheel assembly 11 is as a whole or detachable。Transition wheel 12 is for changing the direction of transmission band or driving-chain 3 and so as to tensioning, and 2 transition wheels 12 can differ。Big wheel carrier 111 is used for installing bull wheel 112 and transition wheel shaft 113；Bull wheel 112 is incomplete belt wheel or sprocket wheel, local gap, removes mid portion stepping down for steamboat 2, transmission band or driving-chain 3；Transition wheel shaft 113 is used for installing transition wheel 12, it is possible to from big wheel carrier 111 dismounting or with 111 one-tenth one entirety (Fig. 2) of big wheel carrier。Steamboat 2 is belt wheel or sprocket wheel, is arranged on support axle 4 or the support as big wheel assembly 1 that is connected with support axle 4。Transmission band or driving-chain 3 drive big wheel assembly 1, steamboat 2, transition wheel 12 to rotate, and the center of arc angle of the approximate excircle part between its 2 transition wheels is much larger than 180 degree and much smaller than 360 degree。Support axle 4 or be connected with big wheel assembly 1 and be used for steamboat 2 is installed, (Fig. 2) can be rotated relative to steamboat 2；Or be connected with steamboat 2 and to be used for installing big wheel assembly 1, relatively large wheel assembly 1 can rotate (Fig. 3)；Or the common support as big wheel assembly 1 and steamboat 2 that is connected with neither of which, relatively large wheel assembly 1, steamboat 2 can rotate。The tumbler such as big wheel assembly 1, steamboat 2, transition wheel 12 all can pass through bearing and support with it and be connected above。Big wheel assembly 1 and the steamboat 2 of this coaxial transmission and speed change gear can serve as drivewheel。When steamboat 2 is drivewheel, big wheel assembly 1 is driven to reversely rotate around common axis of rotation by transmission band or driving-chain 3；Transition wheel 12 rotation on big wheel assembly 1, its sense of rotation is identical with big wheel assembly 1, and revolve round the sun around the common axis of rotation of big wheel assembly 1 and steamboat 2, its revolution direction is identical with big wheel assembly 1, and the gear ratio of this coaxial transmission and speed change gear is the ratio of steamboat 2 pitch radius and bull wheel 112 pitch radius。When big wheel assembly 1 is drivewheel, steamboat 2 is driven to reversely rotate around common axis of rotation by transmission band or driving-chain 3；Transition wheel 12 on big wheel assembly 1 with big wheel assembly 1 rotation in the same direction, and revolve round the sun in the same direction around the relatively large wheel assembly 1 of common axis of rotation of big wheel assembly 1 and steamboat 2, the gear ratio of this coaxial transmission and speed change gear is the ratio of bull wheel 112 pitch radius and steamboat 2 pitch radius。This coaxial transmission and speed change gear structure non complete symmetry, when rotating speed is higher, it is necessary to big wheel assembly 1, steamboat 2 etc. are done static balance and dynamic balancing, with the impact solving big wheel assembly 1, steamboat 2 and transmission band or driving-chain 3 deviation of gravity center common axis of rotation brings。
The embodiment 2 of a kind of coaxial transmission and speed change gear, increases the direction of rotation changing driven pulley of 2 transition wheels 12 so that drivewheel identical with the direction of rotation of driven pulley (Fig. 4) on the basis of embodiment 1。
A kind of embodiment 3 of coaxial transmission and speed change gear, on the basis of embodiment 1, transmission band or driving-chain 3 are open type, two ends are connected with big wheel assembly 1, steamboat 2 respectively, have only to 1 transition wheel 12, it is adaptable to the occasion (Fig. 5) that drivewheel and driven pulley switch mutually and the anglec of rotation of driven wheel is less。
A kind of embodiment 4 of coaxial transmission and speed change gear, on the basis of embodiment 1 big wheel assembly 1 along the center of arc angle of the approximate excircle part between 2 transition wheels that projection view is almost fan or other shape, transmission band or driving-chain 3 in common axis of rotation direction much smaller than 180 degree。Big wheel assembly 1 and steamboat 12 rotating Vortex。The present embodiment is applicable to big wheel assembly 1 around the common axis of rotation occasion with small angle rotation。At identical conditions, because the area that the area ratio embodiment 1 that this example is inswept when small angle rotation is inswept is little, it is possible to smaller and more exquisite than embodiment 1 (Fig. 6)。
The embodiment 5 of a kind of coaxial transmission and speed change gear, on the basis of embodiment 1,2,3,4, couples formation Multi-stage transmission by 4,2 groups common of support axle or many group this coaxial transmission unit along common axis of rotation superposition。When Multi-stage transmission, the big wheel assembly 1 coupling later group with the steamboat 2 of previous group couples for forward。Resultant gear ratio is the product (Fig. 7) of each stage gear ratio。
The embodiment 6 of a kind of coaxial transmission and speed change gear, on the basis of embodiment 1,2,3,4, couples formation secondary transmission by common 4,2 groups of this coaxial transmission unit of support axle along common axis of rotation superposition。When secondary transmission, couple the steamboat 2 of later group with the steamboat 2 of previous group or couple the big wheel assembly 1 of later group for reversely coupling with the big wheel assembly 1 of previous group。Resultant gear ratio is the gear ratio gear ratio (Fig. 8) divided by later group of previous group。Multi-stage transmission can be mixed with reverse connection。
A kind of embodiment 7 of coaxial transmission and speed change gear, on the basis of embodiment 1,2,3,4, the big wheel assembly 1 of 2 groups of this coaxial transmission unit or steamboat 2 connect active part and the secondary part of clutch 5 respectively along common rotation axis, clutch core overlaps with common axis of rotation, can obtain the coaxial speed change with clutch effect and actuating device (Fig. 9)。Clutch can also be substituted with clutch building blocks of function and be respectively installed to 2 groups of these coaxial transmissions and speed change gear to obtain clutch effect。
Claims (10)
1. a coaxial transmission and speed change gear, comprise big wheel assembly, steamboat, transmission band, support axle, it is characterized in that big wheel assembly includes big wheel assembly, transition wheel, big wheel assembly, steamboat, support axle have common axis of rotation, driving big wheel assembly and steamboat to rotate around common axis of rotation by transmission band, transition wheel rotation the common axis of rotation around big wheel assembly and steamboat on big wheel assembly revolve round the sun。
2. a coaxial transmission and speed change gear, comprise big wheel assembly, steamboat, driving-chain, support axle, it is characterized in that big wheel assembly includes big wheel assembly, transition wheel, big wheel assembly, steamboat, support axle have common axis of rotation, driving big wheel assembly and steamboat to rotate around common axis of rotation by driving-chain, transition wheel rotation the common axis of rotation around big wheel assembly and steamboat on big wheel assembly revolve round the sun。
3. a kind of coaxial transmission as claimed in claim 1 or 2 and speed change gear, support axle and be connected with big wheel assembly。
4. a kind of coaxial transmission as claimed in claim 1 or 2 and speed change gear, support axle and be connected with steamboat。
5. a kind of coaxial transmission as claimed in claim 1 or 2 and speed change gear, big wheel assembly includes big wheel carrier, bull wheel, and big wheel assembly detachably divides。
6. a kind of coaxial transmission as claimed in claim 1 or 2 and speed change gear, big wheel assembly includes big wheel carrier, bull wheel, and big wheel assembly is as a whole。
7. a kind of coaxial transmission as claimed in claim 1 or 2 and speed change gear, big wheel assembly includes big wheel carrier, bull wheel, transition wheel shaft, and bull wheel gap also removes intermediate portion。
8. a kind of coaxial transmission as claimed in claim 1 or 2 and speed change gear, big wheel assembly does static balance or dynamic balancing。
9. coaxial transmission as claimed in claim 1 or 2 a kind of and speed change gear, 2 groups of coaxial transmissions and speed change gear or more than 2 groups coaxial transmissions and speed change gear connect along the direct superposition of common axis of rotation and form multi-stage coaxial transmission and speed change gear。
10. a kind of coaxial transmision as claimed in claim 1 or 2,2 groups of coaxial transmissions and speed change gear are coupled along common axis of rotation by clutch superposition, form the coaxial transmission with clutch function and speed change gear。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272201.6A CN105697697A (en) | 2016-04-28 | 2016-04-28 | Coaxial driving and speed changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272201.6A CN105697697A (en) | 2016-04-28 | 2016-04-28 | Coaxial driving and speed changing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105697697A true CN105697697A (en) | 2016-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610272201.6A Pending CN105697697A (en) | 2016-04-28 | 2016-04-28 | Coaxial driving and speed changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697697A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210157A (en) * | 2018-10-05 | 2019-01-15 | 西安应用光学研究所 | A kind of Precision Coaxial finite angle wire cable transmission mechanism |
-
2016
- 2016-04-28 CN CN201610272201.6A patent/CN105697697A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210157A (en) * | 2018-10-05 | 2019-01-15 | 西安应用光学研究所 | A kind of Precision Coaxial finite angle wire cable transmission mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160622 |