CN109114194A - A kind of circular arc profile double helical teeth wheel set of high-mechanic camber line contact - Google Patents
A kind of circular arc profile double helical teeth wheel set of high-mechanic camber line contact Download PDFInfo
- Publication number
- CN109114194A CN109114194A CN201811175677.3A CN201811175677A CN109114194A CN 109114194 A CN109114194 A CN 109114194A CN 201811175677 A CN201811175677 A CN 201811175677A CN 109114194 A CN109114194 A CN 109114194A
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- CN
- China
- Prior art keywords
- gear
- arc
- cylindrical external
- line
- profile
- 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
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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
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
- F16H1/10—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes one of the members being internally toothed
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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
- F16H55/08—Profiling
-
- 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
- F16H55/08—Profiling
- F16H2055/0866—Profiles for improving radial engagement of gears, e.g. chamfers on the tips of the teeth
Abstract
The present invention relates to a kind of circular arc profile double helical teeth wheel sets of high-mechanic camber line contact, it is characterized in that gear pair includes cylindrical external gear and internal gear, gear pair or so two symmetrical, and the field of conjugate action of gear pair is concave-convex arc surface, and the contact line of gear pair is camber line；The gear profile line of cylindrical external gear is concave arc, and along axial in arc-shaped, the crest top land of cylindrical external gear in axial direction gradually comes to a point the tooth form of cylindrical external gear；The gear profile line of meshed ring gear is dome arc, and along axial in arc-shaped, the root face of ring gear in axial direction gradually comes to a point the tooth form of ring gear；Beneficial effect is the gear pair by the way that the engaged transmission between male and fomale(M&F) circular arc can more steadily accurately realization axis be driven, and profile radius of curvature is big, easy running-in, and easily formation oil film, gear capacity improve, stress concentration reduction.
Description
Technical field
The present invention relates to mechanical transmission fields, more particularly to a kind of circular arc profile double helical teeth of high-mechanic camber line contact
Wheel set.
Background technique
Gear drive is most widely used a kind of driving form in Present Mechanical Engineering, and transmission efficiency is high；Reliable operation；
Long service life；The power of applicable peripheral speed and transmitting is big.The gear pair transmission common for one kind, stable drive, and
The transmission that accurate transmission ratio can be provided, therefore be widely used between each axis.It is well known that the power between gear pair is transmitted
By the contact between the gear teeth, and the contact portion between the current gear pair gear teeth and the gear teeth is theoretically straight line, real
Border is one narrow rectangle (tooth surface has micro-strain after being pressurized), and contact area is limited, and tooth surface pressure is larger, tooth
Phenomena such as root stress is larger, is also easy to produce stress concentration, therefore fatigue fracture occurs for the gear teeth, overload fractures is frequent.
It is low in order to solve power density in currently available technology, it is driven unstable etc. technical bottleneck, the invention proposes
A kind of circular arc profile double helical teeth wheel set of high-mechanic camber line contact, the novel gear pair not only can be realized more surely and accurately
Between centers transmission, and gear teeth single-direction transmission bearing capacity can be greatly improved, reduce tooth surface pressure, the gear teeth are not susceptible to be broken
Or it fractures, and tooth surface is also hardly damaged.Both it had been able to satisfy the Practical Project demand in high-speed overload precision drive field, has filled up phase
Technological gap is closed, and can produce biggish social benefit and economic benefit.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of circular arc profile double helixs of high-mechanic camber line contact
Gear pair, it is characterised in that gear pair includes cylindrical external gear and internal gear, and gear pair or so two symmetrical, and gear pair is left
Helix on right two teeth directional directions is oppositely oriented, and escape is arranged in the middle part of gear pair, and the field of conjugate action of gear pair is concave-convex circle
Cambered surface, the contact line of gear pair are camber line；The gear profile line of cylindrical external gear is concave arc, and the tooth form of cylindrical external gear is along axis
To in arc-shaped, the crest top land of cylindrical external gear in axial direction gradually comes to a point, and the flank profil of cylindrical external gear in axial direction is cut
Face is different everywhere；The gear profile line of meshed ring gear is dome arc, and the axial tooth form edge of ring gear is in arc-shaped, interior
The root face of gear ring in axial direction gradually comes to a point, and the flank profil section of cylindrical external gear in axial direction is different everywhere.
The beneficial effects of the present invention are: this kind of novel gear pair in transmission, compare by the arc field of conjugate action of each gear teeth
It is promoted significantly in the bearing capacity of plane；Secondly outer gear ring gear teeth and with ring gear gear teeth theoretical contact line be a camber line,
Length is greater than the straight contact line under identical gear width, and therefore, the pressure of tooth surface is smaller, and the gear teeth are hardly damaged.
Detailed description of the invention
Fig. 1 is circular arc profile double helical teeth wheel set-cylindrical external gear；
Fig. 2 is circular arc profile double helical teeth wheel set-internal gear；
Fig. 3 is circular arc profile double helical teeth wheel set；
Fig. 4 is circular arc profile double helical teeth wheel set part engagement figure.
Specific embodiment
Embodiments of the present invention are described with reference to the drawings, the present invention is specifically described below with reference to Fig. 1-Fig. 4.
A kind of circular arc profile double helical teeth wheel set of high-mechanic camber line contact includes cylindrical external gear and ring gear, the circle
The field of conjugate action of column external gear and ring gear is arc surface, and the tooth top of cylindrical external gear is along being in axially the trend to come to a point, with its phase
The ring gear tooth root of engagement is along axial direction also accordingly in the trend that comes to a point.
The gear profile line of cylindrical external gear and ring gear is circular arc, and above-mentioned novel gear pair is described in transmission
The field of conjugate action of cylindrical external gear and ring gear is arc surface, and gear drive bearing capacity improves；Cylindrical external gear and ring gear
Flank profil line is circular arc, and theoretical contact line is a camber line, and length is greater than the straight contact line under identical gear width, gear teeth table
The pressure in face accordingly reduces, and extends gear service life.
The above is only the better embodiment of invention, not does any restrictions to the present invention, it is all according to the present invention
Essence still falls within the protection model of the technology of the present invention to any modification, change and equivalence changes made by embodiment of above
Within enclosing.
Claims (1)
1. a kind of circular arc profile double helical teeth wheel set of high-mechanic camber line contact, it is characterised in that gear pair includes cylindrical external gear
And internal gear, gear pair or so two are symmetrical, and the helix on two teeth directional directions of gear pair or so is oppositely oriented, gear
Escape is arranged in secondary middle part, and the field of conjugate action of gear pair is concave-convex arc surface, and the contact line of gear pair is camber line；Cylindrical external gear
Gear profile line is concave arc, and the tooth form of cylindrical external gear is along axial in arc-shaped, and the crest top land of cylindrical external gear is along axial direction side
To gradually coming to a point, the flank profil section of cylindrical external gear in axial direction is different everywhere；The gear profile of meshed ring gear
Line is dome arc, and the tooth form of ring gear is along axial in arc-shaped, and the root face of ring gear in axial direction gradually comes to a point, outside cylinder
The flank profil section of gear in axial direction is different everywhere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175677.3A CN109114194A (en) | 2018-10-08 | 2018-10-08 | A kind of circular arc profile double helical teeth wheel set of high-mechanic camber line contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175677.3A CN109114194A (en) | 2018-10-08 | 2018-10-08 | A kind of circular arc profile double helical teeth wheel set of high-mechanic camber line contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109114194A true CN109114194A (en) | 2019-01-01 |
Family
ID=64857497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811175677.3A Pending CN109114194A (en) | 2018-10-08 | 2018-10-08 | A kind of circular arc profile double helical teeth wheel set of high-mechanic camber line contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114194A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1083689A (en) * | 1965-08-30 | 1967-09-20 | Mack Trucks | Rolling contact gear |
| DE102005005347A1 (en) * | 2005-01-31 | 2006-10-26 | Kayser, Albrecht, Dipl.-Ing. | Screw-type rotary compressor has large rotor intermeshing with secondary smaller rotor with convex peak interface profiles |
| CN101225878A (en) * | 2007-01-19 | 2008-07-23 | 西北工业大学 | Arc tooth surface gear pair and method of processing the same |
| CN108180270A (en) * | 2018-01-02 | 2018-06-19 | 天津工业大学 | A kind of two-output impulse generator is from vibration-reduction gear transmission system |
| CN208951230U (en) * | 2018-10-08 | 2019-06-07 | 天津工业大学 | A kind of circular arc profile cambered surface double helical tooth wheel set |
-
2018
- 2018-10-08 CN CN201811175677.3A patent/CN109114194A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1083689A (en) * | 1965-08-30 | 1967-09-20 | Mack Trucks | Rolling contact gear |
| DE102005005347A1 (en) * | 2005-01-31 | 2006-10-26 | Kayser, Albrecht, Dipl.-Ing. | Screw-type rotary compressor has large rotor intermeshing with secondary smaller rotor with convex peak interface profiles |
| CN101225878A (en) * | 2007-01-19 | 2008-07-23 | 西北工业大学 | Arc tooth surface gear pair and method of processing the same |
| CN108180270A (en) * | 2018-01-02 | 2018-06-19 | 天津工业大学 | A kind of two-output impulse generator is from vibration-reduction gear transmission system |
| CN208951230U (en) * | 2018-10-08 | 2019-06-07 | 天津工业大学 | A kind of circular arc profile cambered surface double helical tooth wheel set |
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