CN108061142A - There is the straight-tooth gear of overlap ratio - Google Patents
There is the straight-tooth gear of overlap ratio Download PDFInfo
- Publication number
- CN108061142A CN108061142A CN201711203773.XA CN201711203773A CN108061142A CN 108061142 A CN108061142 A CN 108061142A CN 201711203773 A CN201711203773 A CN 201711203773A CN 108061142 A CN108061142 A CN 108061142A
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- China
- Prior art keywords
- straight
- tooth gear
- tooth
- gear
- overlap ratio
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- 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.)
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Classifications
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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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
Abstract
The present invention relates to a kind of transmission device, especially a kind of straight-tooth gear for having overlap ratio.Its form is equidistantly divided into m for straight-tooth gear and arranges modulus,Pressure angle,Addendum coefficient,Tip clearance coefficient and the identical small straight-tooth gear of corresponding traditional straight-tooth gear,The facewidth of each small straight-tooth gear of row is identical,Between groove width it is identical,The equidirectional 1/n tooth pitches that misplace successively of adjacent two rows of two teeth,m,N is the integer more than 1,m≥n,It is installed using standard,The small straight-tooth gear of each row and traditional straight-tooth gear of corresponding standard installation is made to have identical transverse contact ratio,Total registration=transverse contact ratio+overlap ratio,Overlap ratio=(m 1)/n,M is bigger, and registration is higher,The present invention realizes no axial force the straight-tooth gear of overlap ratio again,Overcoming traditional helical gear has the defects of the shortcomings that unfavorable axial force and relatively small traditional straight-tooth gear registration,Transmission is more steady reliable.
Description
Technical field
The present invention relates to a kind of transmission device, specifically a kind of straight-tooth gear for having overlap ratio.
Background technology
Gear is widely used in mechanical equipment, such as straight-tooth gear, helical gear, circular arc gear.
Traditional Involute Spur Gear is driven no axial force, but registration is smaller, it is impossible to which, more than 2, transmission is not
It is enough steady.
For traditional Helical gear Transmission registration because can be bigger comprising transverse contact ratio and overlap ratio, registration can
It is more steady compared with straight-tooth gear considerably beyond 2, to be driven, but there are unfavorable axial forces.
It must be helical gear that circle-arc tooth gear face registration, which is equal to zero, and there are bigger unfavorable axial forces.
The content of the invention
The present invention is intended to provide a kind of straight-tooth gear for having overlap ratio, is overlapped with solving existing traditional straight-tooth gear
Spend it is smaller, transmission it is not steady enough；And there is unfavorable axial force in traditional helical gear, circle-arc tooth gear drive.
For this purpose, the present invention proposes a kind of straight-tooth gear for having overlap ratio, the straight-tooth tooth for having overlap ratio
The form of wheel is equidistantly divided into m for straight-tooth gear and arranges identical small straight-tooth gear, there is slot between each row, and adjacent two rows of two
The equidirectional 1/n tooth pitches that misplace successively of a tooth, m, n are the integer more than 1, and m >=n, m arrange small straight-tooth gear and combine together as one
Part.
The straight-tooth gear for having overlap ratio of the present invention, wherein the tooth-formation of gear can be that transverse contact ratio is big
In 0 any tooth form, such as involute profile, cycloidal tooth profile.
The straight-tooth gear for having overlap ratio of the present invention, wherein the m arranges the small straight-tooth of each row of small straight-tooth gear
Gear can be that transverse contact ratio is less than 1 gear for being more than 0, be installed using the standard identical with corresponding traditional straight-tooth gear,
The transverse contact ratio of the small straight-tooth gear of each row and traditional straight-tooth gear of corresponding standard installation is made to have identical end face to overlap
Degree, the registration for making entire gear total by regular dislocation cascade are more than 1 or even are far longer than 1, total registration=end
Face registration+overlap ratio, overlap ratio=(m-1)/n, m is bigger, and registration is higher, and bearing capacity is higher, and transmission is more flat
Surely.
The straight-tooth gear for having overlap ratio of the present invention, wherein during the engagement of described gear two meshing gears it is each
It is identical with traditional straight-tooth gear to arrange the parameter of small straight-tooth gear, i.e. the complete phase of modulus, pressure angle, addendum coefficient, tip clearance coefficient
Together, the facewidth of the small straight-tooth gear of each row of two meshing gears is identical, and the groove width between the adjacent small straight-tooth gear of two rows is identical.
The present invention realizes no axial force the straight-tooth gear of overlap ratio again, and arranging small straight-tooth gear by m has rule
Restrain dislocation cascade, i.e., the equidirectional 1/n tooth pitches that misplace successively of the tooth of two neighboring small straight-tooth gear, arrangement m lines up to be arranged for one, m >=
N adds overlap ratio, and overcoming traditional helical gear has the shortcomings that unfavorable axial force and traditional straight-tooth gear registration
The defects of relatively small, transmission are more steady reliable.
Description of the drawings
Fig. 1：Specific embodiments of the present invention assembly schematic diagram, by taking m=n=6 as an example；
Fig. 2：The multiple tooth several gear part schematic diagrames of specific embodiments of the present invention, by taking m=n=6 as an example；
Fig. 3：Specific embodiments of the present invention gear with little teeth number part schematic diagram, by taking m=n=6 as an example；
Fig. 4：Specific embodiments of the present invention registration analyzes schematic diagram, by taking m=n=6 as an example.
Specific embodiment
As shown in Figs. 1-3：There is the form of the straight-tooth gear of overlap ratio to be equidistantly divided into the drained full phases of m for straight-tooth gear
With small straight-tooth gear, have slot between each row, the equidirectional 1/n tooth pitches that misplace successively of adjacent two rows of two teeth, m, n are more than 1
Integer, m >=n, herein m=n=6.
As shown in Figure 1：Each row of two meshing gears is small straight when the straight-tooth gear for having overlap ratio engages
The parameter of gear is identical with traditional straight-tooth gear, i.e., modulus, pressure angle, addendum coefficient, tip clearance coefficient are identical, two
The facewidth of the small straight-tooth gear of each row of meshing gear is identical, and the groove width between the adjacent small straight-tooth gear of two rows is identical.
As shown in Figs. 1-3：The tooth-formation of gear can be any tooth form that transverse contact ratio is more than 0, for example gradually open
Line tooth form, cycloidal tooth profile.
As shown in Figs. 1-3：The small straight-tooth gear of each row that the m arranges small straight-tooth gear can be that transverse contact ratio is less than
1 is more than 0 gear, is installed using the standard identical with corresponding traditional straight-tooth gear, makes the end face of the small straight-tooth gear of each row
Registration and traditional straight-tooth gear of corresponding standard installation have identical transverse contact ratio, are made by regular dislocation cascade
The entire total registration of gear is more than 1 or even is far longer than 1, total registration=transverse contact ratio+overlap ratio, longitudinal direction
Registration=(m-1)/n, m is bigger, and registration is higher, and bearing capacity is higher, and transmission is more steady.
As shown in Figure 4：Two identical biographies of parameter (number of teeth, modulus, pressure angle, addendum coefficient and tip clearance coefficient)
System standard straight-tooth gear and the present invention have reference circle cylindrical surface (the i.e. pitch circle cylindrical surface) expansion of the straight-tooth gear of overlap ratio
Figure.Fig. 4 a) shown in region CD be traditional straight-tooth gear arc of action expansion region of engagement, when the tooth of driven wheel turns to point D,
Gear starts to engage along entire tooth top, when turning to C points, terminates and engages along entire tooth root.But Fig. 4 b)-e) shown in the present invention have
The region of engagement of the straight-tooth gear (by taking m=n=6 as an example) of overlap ratio increases.Fig. 4 b) shown in, a row tooth of driven wheel (1,
2nd, 3,4,5,6 row) front end face, i.e., when the 1st small straight-tooth gear of row turns to D points, the tooth top of the 1st small straight-tooth gear of row starts to engage
(position I), at this moment this there are several rows (2,3,4,5,6 row) behind the straight-tooth gear of overlap ratio not yet to engage；Backgear
It is rotated further, 2,3,4,5, the 6 small straight-tooth gears of row sequentially enter engagement；Fig. 4 c) shown in, when front end face i.e. the 1st row's straight-tooth gear
Turn to D1 points (position I '), i.e., rear end face when i.e. the 6th small straight-tooth gear of row turns to D ' positions the 6th row's straight-tooth gear start to nibble
Close, at this moment the 1st, 2,3,4, the small straight-tooth gear of 5 rows is still among engagement；Fig. 4 d) shown in, when front end face i.e. the 1st row is small straight
When gear turns to C points (position I "), the 1st small straight-tooth gear of row exits engagement, but 2,3,4,5,6 rows below are still nibbling
Among conjunction；Fig. 4 e) shown in, when front end face i.e. the 1st small straight-tooth gear of row turns to C1 points (position I " '), i.e. the 6th row of rear end face is small
When straight-tooth gear turns to C ' positions, the 6th small straight-tooth gear of row exits engagement, at this moment this 1,2,3,4,5,6 small straight-tooth of row of row
Gear just all terminates engagement.The obvious present invention has the total arc of transmission of the straight-tooth gear of overlap ratioThan traditional straight-tooth tooth
It takes turns and has turned an arc length moreM, n is the integer more than 1, and m >=n, i.e., total registration is except end face
Add beyond registration overlap ratio s=(m-1)/n, m it is bigger registration is higher, transmission is more steady.
The present invention realizes no axial force the straight-tooth gear of overlap ratio again, and arranging small straight-tooth gear by m has rule
Rule dislocation cascade, i.e., adjacent two rows of two teeth it is equidirectional successively misplace 1/n tooth pitches, arrangement m line up for one arrange, m >=n, using with
The identical standard installation of traditional straight-tooth gear, adds overlap ratio, and overlap ratio s=(m-1)/n overcomes traditional oblique
Gear has the defects of the shortcomings that unfavorable axial force and relatively small traditional straight-tooth gear registration, and transmission more steadily may be used
It leans on.
Claims (3)
1. a kind of straight-tooth gear transmission device for having overlap ratio, form is equidistantly divided into m for straight-tooth gear and arranges modulus, pressure
Power angle, addendum coefficient, tip clearance coefficient and the identical small straight-tooth gear of corresponding traditional straight-tooth gear, each small straight-tooth of row
The facewidth of gear is identical, between groove width it is identical, adjacent two rows of two teeth it is equidirectional successively misplace 1/n tooth pitches, m, n be more than 1
Integer, m >=n installed using standard, makes the small straight-tooth gear of each row and traditional straight-tooth gear that corresponding standard is installed has phase
Same transverse contact ratio, total registration=transverse contact ratio+overlap ratio, overlap ratio=(m-1)/n, m are more big heavy
It is right higher.
2. the straight-tooth gear transmission device according to claim 1 for having overlap ratio, it is characterised in that the gear
Tooth form can be any tooth form that transverse contact ratio is more than 0, such as involute profile, cycloidal tooth profile.
3. the straight-tooth gear transmission device according to claim 1 for having overlap ratio, it is characterised in that the m rows are small
The small straight-tooth gear of each row of straight-tooth gear can be that transverse contact ratio is less than 1 gear for being more than 0, pass through regular dislocation grade
Connection, m arrange small straight-tooth gear and combine together as a part, and the registration for making entire gear total is more than 1 or even is far longer than 1,
Total registration=transverse contact ratio+overlap ratio, overlap ratio=(m-1)/n, m is bigger, and registration is higher, bearing capacity
Higher, transmission is more steady, and the present invention realizes no axial force the straight-tooth gear of overlap ratio again, overcomes traditional helical teeth
Wheel has the defects of the shortcomings that unfavorable axial force and relatively small traditional straight-tooth gear registration, and transmission is more steady reliable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203773.XA CN108061142A (en) | 2017-11-27 | 2017-11-27 | There is the straight-tooth gear of overlap ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203773.XA CN108061142A (en) | 2017-11-27 | 2017-11-27 | There is the straight-tooth gear of overlap ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108061142A true CN108061142A (en) | 2018-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711203773.XA Pending CN108061142A (en) | 2017-11-27 | 2017-11-27 | There is the straight-tooth gear of overlap ratio |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483465A (en) * | 2018-11-23 | 2019-03-19 | 中国航发南方工业有限公司 | Component and preparation method thereof for engine turbine disk dismantling |
| WO2021058780A1 (en) * | 2019-09-27 | 2021-04-01 | Ocado Innovation Limited | A cogwheel |
| CN113404842A (en) * | 2021-05-11 | 2021-09-17 | 重庆大学 | High-order tuning method capable of achieving near-zero fluctuation of gear time-varying meshing stiffness |
Citations (6)
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| US3988942A (en) * | 1975-04-28 | 1976-11-02 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Laminated gear |
| JPH0231060A (en) * | 1988-07-20 | 1990-02-01 | Mazda Motor Corp | Joint structure of circular part |
| CN201125999Y (en) * | 2007-12-18 | 2008-10-01 | 陈福建 | Gear |
| CN201510752U (en) * | 2009-09-18 | 2010-06-23 | 东莞先豪电器玩具有限公司 | Combined metal gear |
| CN103047391A (en) * | 2012-12-24 | 2013-04-17 | 徐成金 | Combination gear |
| CN203146757U (en) * | 2012-12-24 | 2013-08-21 | 徐成金 | Combination gear |
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2017
- 2017-11-27 CN CN201711203773.XA patent/CN108061142A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988942A (en) * | 1975-04-28 | 1976-11-02 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Laminated gear |
| JPH0231060A (en) * | 1988-07-20 | 1990-02-01 | Mazda Motor Corp | Joint structure of circular part |
| CN201125999Y (en) * | 2007-12-18 | 2008-10-01 | 陈福建 | Gear |
| CN201510752U (en) * | 2009-09-18 | 2010-06-23 | 东莞先豪电器玩具有限公司 | Combined metal gear |
| CN103047391A (en) * | 2012-12-24 | 2013-04-17 | 徐成金 | Combination gear |
| CN203146757U (en) * | 2012-12-24 | 2013-08-21 | 徐成金 | Combination gear |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483465A (en) * | 2018-11-23 | 2019-03-19 | 中国航发南方工业有限公司 | Component and preparation method thereof for engine turbine disk dismantling |
| WO2021058780A1 (en) * | 2019-09-27 | 2021-04-01 | Ocado Innovation Limited | A cogwheel |
| JP2022550080A (en) * | 2019-09-27 | 2022-11-30 | オカド・イノベーション・リミテッド | cogwheel |
| AU2020354528B2 (en) * | 2019-09-27 | 2023-10-26 | Ocado Innovation Limited | A cogwheel |
| JP7419509B2 (en) | 2019-09-27 | 2024-01-22 | オカド・イノベーション・リミテッド | cogwheel |
| CN113404842A (en) * | 2021-05-11 | 2021-09-17 | 重庆大学 | High-order tuning method capable of achieving near-zero fluctuation of gear time-varying meshing stiffness |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180522 |
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| WD01 | Invention patent application deemed withdrawn after publication |