CN2446333Y - Involute wildhaber-novikov gear - Google Patents
Involute wildhaber-novikov gear Download PDFInfo
- Publication number
- CN2446333Y CN2446333Y CN00244958U CN00244958U CN2446333Y CN 2446333 Y CN2446333 Y CN 2446333Y CN 00244958 U CN00244958 U CN 00244958U CN 00244958 U CN00244958 U CN 00244958U CN 2446333 Y CN2446333 Y CN 2446333Y
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- China
- Prior art keywords
- gear
- involute
- circular arc
- tooth
- flank profil
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Abstract
The utility model discloses an involute circular arc gear which relates to teeth of a pair of gears meshed with each other, wherein, the contact line of the tooth profile of the involute gear is circular arc in shape. The tooth profile of the gear is a curved surface formed by two involutes which move in parallel along respective two circular arcs. In the process of engagement, when the gear is loaded, a shaft generates bending deflection, and two gears can slide relatively along the circular arc line to effectively improve the phenomenon of uneven load distribution; thus, the utility model has the advantages of high reliability, long lifetime, small vibration, low noise, etc., and is especially suitable for the gear transmission of aeroengines, nuclear power stations, heavy mines, metallurgical machines, etc. which have high speed and heavy load.
Description
Involute-circular tooth gear, in a kind of machinery with normal transmission part.
Involute is exploited as the existing so far history that surpasses 150 years of the flank profil of gear, because involute profile has the irreplaceable advantage of other flank profil: the motion that its transmits accurately, operate steadily, and have certain bearing capacity, so involute profile is the desirable flank profil of using always for a long time always.But this traditional involute profile flank profil Line of contact in engagement process is a straight line, under the effect of load, when particularly gear mechanism is used for heavy load transmission, will produce load that the bending deflection because of axle causes along Line of contact skewness phenomenon.The domestic and international up to now solution to this problem that on engineering, often adopts, be that gear teeth that cog are accomplished Peng's shape, yet correction of the flank shape has but been shortened the Line of contact of two between cog and has been increased tooth profile error, in addition, also adopt the rigidity that increases axle, bearing and bearing, dispose bearing symmetrically, suitably limited wheel facewidth degree avoids gear to make methods such as cantilever configuration as far as possible.These methods all can not overcome load effectively along Line of contact skewness phenomenon, so that involute profile is difficult to is developed always.
The utility model is the problem that exists according to known technology, change the shape of the flank profil Line of contact of intermeshing a pair of gear, when axle produces bending deflection when making in the two gear engagement processes stand under load, two gear teeth can contact the circular arc line slide relative, improve load along Line of contact skewness problem effectively along flank profil, reach the purpose that improves reliability, life-saving and reduce vibration and noise.
The utility model is to realize by following technological scheme.
Fig. 1 is the stereogram of gear teeth of the utility model, it is mainly by convex surface flank profil 1, concave surface flank profil 2, tooth root 3, tooth top 4 is formed, and the convex surface flank profil is to be moved to the position of involute 8 and form along circular arc 9 is parallel with 10 by involute 6, and the concave surface flank profil is to be moved to the position of involute 7 and form along circular arc 11 is parallel with 12 by involute 5,5,6,7,8 is four identical involutes, and 9,10,11,12 is all arcs that four radius of curvature equate.Several such gear teeth are just formed an involute-circular tooth gear.Its flank profil Line of contact of intermeshing two gear teeth is a circular arc, and the condition of two tooth correct engagement is that the radius of arc of two gear teeth equates.
Compare with known technology and the utlity model has following advantage:
Involute-circular tooth gear is in engagement process, axle produces bending deflection when stand under load, two gears can contact the circular arc line slide relative along flank profil, thereby can improve load effectively along Line of contact skewness phenomenon, and its Contact Stress of Gear is little, bearing capacity is bigger than the traditional involute gear that extensively adopts in the world at present, and it also possesses all advantages of traditional involute gear simultaneously.Therefore, involute-circular tooth gear has advantages such as high reliability, long lifetime and vibration and noise be little, be applicable to various gear transmissions, be specially adapted in the gear transmission of high speed, heavy duty (as aeroengine, nuclear power station, heavy mine and metallurgical machinery etc.).
Fig. 1 is the stereogram of gear teeth of the utility model, and 1 for convex surface flank profil, 2 is that concave surface flank profil, 3 is that tooth root, 4 is that tooth top, 5,6,7,8 is four identical involutes among the figure, and 9,10,11,12 is the circular arcs that four radius of curvature equate.Fig. 2 is the plan view of Fig. 1, the plan view that Fig. 3 is Fig. 1, and R is the radius of curvature of 9,10,11,12 4 circular arcs among the figure.
Provide among Fig. 2 institute's dimensioning below and get a=9mm, b=7mm, c=30mm, e=35mm, R=18mm as embodiment.
Claims (1)
1, a kind of involute-circular tooth gear, it is characterized in that: the gear teeth of this gear are by convex surface flank profil (1), concave surface flank profil (2), tooth root (3), tooth top (4) is formed, the convex surface flank profil is to be moved to the position of involute (8) and form along circular arc (9) is parallel with (10) by involute (6), the concave surface profile is to be moved to the position of involute (7) and form along circular arc (11) is parallel with (12) by involute (5), (5), (6), (7), (8) be four identical involutes, (9), (10), (11), (12) be the circular arc that four radius of curvature equate, several such gear teeth are just formed an involute-circular tooth gear, intermeshing two-wheeled tooth Line of contact is a circular arc, and the meshing condition of two teeth is that the circular arc radius of curvature equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00244958U CN2446333Y (en) | 2000-11-10 | 2000-11-10 | Involute wildhaber-novikov gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00244958U CN2446333Y (en) | 2000-11-10 | 2000-11-10 | Involute wildhaber-novikov gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2446333Y true CN2446333Y (en) | 2001-09-05 |
Family
ID=33604539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00244958U Expired - Fee Related CN2446333Y (en) | 2000-11-10 | 2000-11-10 | Involute wildhaber-novikov gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2446333Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462593C (en) * | 2005-08-05 | 2009-02-18 | 本田技研工业株式会社 | Integrated gear and pedal starting device for internal combustion engine |
| WO2010006550A1 (en) * | 2008-07-16 | 2010-01-21 | 刘林欛 | Male and female full rolling gears |
| CN101975264A (en) * | 2010-10-15 | 2011-02-16 | 重庆大学 | Involute arc tooth profile bevel gear and meshing pair thereof |
| CN103195869A (en) * | 2013-03-28 | 2013-07-10 | 东北大学 | Involute cylindrical gear system transmission accuracy reliability determining and controlling method |
| CN106870581A (en) * | 2015-11-10 | 2017-06-20 | 福特全球技术公司 | The angled end-face spline of linear contact lay |
-
2000
- 2000-11-10 CN CN00244958U patent/CN2446333Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462593C (en) * | 2005-08-05 | 2009-02-18 | 本田技研工业株式会社 | Integrated gear and pedal starting device for internal combustion engine |
| WO2010006550A1 (en) * | 2008-07-16 | 2010-01-21 | 刘林欛 | Male and female full rolling gears |
| CN101975264A (en) * | 2010-10-15 | 2011-02-16 | 重庆大学 | Involute arc tooth profile bevel gear and meshing pair thereof |
| WO2012048599A1 (en) * | 2010-10-15 | 2012-04-19 | 重庆大学 | Bevel gear with involute cambered surface tooth profile and meshing pair thereof |
| CN101975264B (en) * | 2010-10-15 | 2012-07-11 | 重庆大学 | Involute arc tooth profile bevel gear and meshing pair thereof |
| CN103195869A (en) * | 2013-03-28 | 2013-07-10 | 东北大学 | Involute cylindrical gear system transmission accuracy reliability determining and controlling method |
| CN103195869B (en) * | 2013-03-28 | 2016-01-20 | 东北大学 | Involute cylindrical gear drive system precision reliability is determined and regulate and control method |
| CN106870581A (en) * | 2015-11-10 | 2017-06-20 | 福特全球技术公司 | The angled end-face spline of linear contact lay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |