CN105937602A - Double-arc gear - Google Patents
Double-arc gear Download PDFInfo
- Publication number
- CN105937602A CN105937602A CN201610402761.9A CN201610402761A CN105937602A CN 105937602 A CN105937602 A CN 105937602A CN 201610402761 A CN201610402761 A CN 201610402761A CN 105937602 A CN105937602 A CN 105937602A
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- CN
- China
- Prior art keywords
- arc
- gear
- arcs
- concave
- tooth
- 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.)
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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
- 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
-
- 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
- F16H55/0826—Novikov-Wildhaber profile
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a double-arc gear comprising a plurality of gear teeth. The basic tooth profile of each gear tooth comprises a convex arc and a concave arc; the convex arcs are connected with the concave arcs through groove segments; and the groove segments are formed in the manner that common tangents of the convex arcs and the concave arcs horizontally move to the direction of the inner sides of the convex arcs. In the running-in process of the double-arc gear, the tooth form formed by the groove segments does not take participate in engagement, and pitting corrosion generated in the involute tooth form running-in process of a common common-tangent-type double-arc gear can be effectively avoided; and after running-in, the involute tooth form formed by original groove segments is in smooth transition with the convex arcs and the concave arcs of the gear teeth, loads of the convex arcs and the concave arcs can be reduced, the service life of the gear is prolonged, and because the overlap ratio of the involute tooth form is higher than that of the transition arc tooth form of the segmented double-arc gear, transmission is more stable.
Description
Technical field
The invention belongs to the mechanical organ of transmitting movement and power, specifically one gear, more
Particularly a kind of Novikov gears with double circular arc tooth profiles.
Background technology
The basic rack tooth profile of existing common tangent formula Novikov gears with double circular arc tooth profiles is by dome arc, concave arc and with convex
The common tangent composition of circular arc and concave arc, the gear that the hobboing cutter made by this flank profil is processed
Work profile of tooth is divided into two parts: what a part was that its bicircular arcs part processed is bicircular arcs profile of tooth,
What another part was that its common tangent part processed is involute profile.The bicircular arcs of this profile of tooth
It is susceptible to spot corrosion at the profile of tooth of the gear involute when running-in, thus causes gear failure.
For solving the problem of spot corrosion, the national standard file GB12759-91 of gear proposes stepwise
Novikov gears with double circular arc tooth profiles, uses transition arc to substitute dome arc and the common tangent of concave arc.But, by
Transition arc in segment double circular arc gear is not involved in engaging, and common tangent formula bicircular arcs
The involute profile of gear is to participate in engagement, so the registration of segment double circular arc gear is relatively
The registration of the Novikov gears with double circular arc tooth profiles of common tangent formula is little.Therefore, with the Novikov gears with double circular arc tooth profiles of common tangent formula
Comparing, the gear teeth of segment double circular arc gear enter engagement and out-of-gear impact is relatively big, flat
Stability relatively common tangent formula Novikov gears with double circular arc tooth profiles is poor, affects the service life of gear.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of being difficult to when running-in and send out
Raw spot corrosion and running-in complete after the Novikov gears with double circular arc tooth profiles of stable drive.
The present invention solves that its technical problem the technical scheme is that
A kind of Novikov gears with double circular arc tooth profiles, including multiple gear teeth, the basic rack tooth profile bag of each gear teeth
Including dome arc and concave arc, described dome arc is by groove line segment with described concave arc even
Connect, described groove line segment by described dome arc with the common tangent of described concave arc to described
Direction, the inner side translation of dome arc is formed.
As the present invention preferred embodiment, described groove line segment is by common tangent
The half of the difference of the radius of curvature of radius of curvature and the dome arc of translation concave arc away from
From formation.
The invention has the beneficial effects as follows: each gear teeth of a kind of Novikov gears with double circular arc tooth profiles of the present invention
Basic rack tooth profile employs groove line segment and substitutes the common tangent of dome arc and concave arc, described
Groove line segment is to be translated by the common tangent of dome arc with concave arc and formed, at gear
During running-in, the involute profile that groove line segment is formed is not involved in engagement, energy
Enough it is prevented effectively from the involute profile runing condensation procedure of common common tangent formula Novikov gears with double circular arc tooth profiles
Produce spot corrosion, after running-in, the bicircular arcs profile of tooth that dome arc and concave arc are formed
The involute profile formed with groove line segment seamlessly transits.Involute profile can be held
A part of load when being engaged by gear, alleviates the load of dome arc and concave arc,
Improve the service life of gear, and owing to the registration of involute profile is relative to stepwise
The registration of the transition arc profile of tooth of Novikov gears with double circular arc tooth profiles is higher, and therefore transmission is more steady.
Accompanying drawing explanation
Fig. 1 is the structural representation of the basic rack tooth profile of the gear teeth of the present invention；
Fig. 2 is the structural representation of the basic rack tooth profile of segment double circular arc gear；
Fig. 3 is the basic rack tooth profile structural representation of common tangent formula Novikov gears with double circular arc tooth profiles；
Fig. 4 is showing of the relation of oil film pressure and the width of the gear teeth of segment double circular arc gear
It is intended to；
Fig. 5 is the oil film pressure schematic diagram with the relation of width of the gear teeth of the present invention.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings, but
It is that, it should be noted that the explanation to implementation below is schematic, it is right to be not intended that
The concrete restriction of the present invention.
With reference to Fig. 1, a kind of Novikov gears with double circular arc tooth profiles of the present invention, including multiple gear teeth, each gear teeth
Basic rack tooth profile include dome arc 1 and concave arc 2, in figure, centerline segment is the joint of this gear
Circle, dome arc 1 is connected with concave arc 2 by groove line segment 3, and described groove line segment 3 is by convex
Circular arc 1 translates to the direction, inner side of dome arc 1 with the common tangent 4 of concave arc 2Formed, its
In, Δr=Pb-Pa, P in formulabFor the radius of curvature of concave arc, PaCurvature half for dome arc
Footpath,Distance be the running-in amount of the single gear teeth, described dome arc 1 and described after running-in
Seamlessly transit between concave arc 2 and described groove line segment 3.Described groove line segment 3 is relative to public affairs
The distance of tangent line 4 translation can be made adjustment according to gear-driven concrete running-in condition, is not limited to
Fixed value.
Referring to figs. 1 through Fig. 3, due to the tooth formed at runing condensation procedure further groove line segment 3
Shape is not involved in engagement, therefore, it is to avoid in runing condensation procedure, this groove line segment 3 is formed
Profile of tooth generation spot corrosion, solve the common common tangent formula Novikov gears with double circular arc tooth profiles shown in Fig. 3
The problem that spot corrosion occurs in runing condensation procedure, meanwhile, the tooth that groove line segment 3 is formed
Shape is involute profile, and involute profile is compared with the national standard literary composition of the gear shown in Fig. 2
The transition arc part of each gear teeth of the segment double circular arc gear that part GB12759-91 proposes
The registration of profile of tooth higher, therefore the overall registration of a kind of Novikov gears with double circular arc tooth profiles of the present invention is relatively
Segment double circular arc gear is higher, and drive motion is more steady.
With reference to Fig. 4, existing segment double circular arc gear defines during gear drive
Two oil films separated, the abscissa W in figure is oil film width, and ordinate P is oil film pressure,
Wherein the spacing of A1 Yu A2 be segment double circular arc gear dome arc profile of tooth corresponding to
Oil film width, the spacing of A2 with A3 is the oil film width that the profile of tooth of transition arc is corresponding, A3
The oil film width corresponding with the profile of tooth that the spacing of A4 is concave arc, two described oil films two
The oil pressure on limit is zero, therefore has four leakage points.With reference to Fig. 5, the abscissa W in figure
For oil film width, ordinate P is oil film pressure, and a kind of Novikov gears with double circular arc tooth profiles of the present invention is by described
Two oil films of segment double circular arc gear have been linked to be an oil film, and the leakage point of oil film is A5
And A6, oil film leak point is become two relative to the oil film of segment double circular arc gear from four,
The oil film pressure at oil film center is significantly raised, and the area of oil film is the oil of segment double circular arc gear
The several times of membrane area, friction, abrasion between the flank of tooth of gear reduce, and on the one hand improve transmission
Efficiency, on the other hand contributes to extending the service life of gear.
The foregoing is only the preferred embodiments of the present invention, as long as realizing with essentially identical means
Within the technical scheme of the object of the invention broadly falls into protection scope of the present invention.
Claims (2)
1. a Novikov gears with double circular arc tooth profiles, including multiple gear teeth, the basic rack tooth profile of each gear teeth includes dome arc (1) and concave arc (2), it is characterized in that: described dome arc (1) is connected with described concave arc (2) by groove line segment (3), by the common tangent (4) of described dome arc (1) with described concave arc (2), to the direction, inner side of described dome arc (1), translation is formed described groove line segment (3).
2. a kind of Novikov gears with double circular arc tooth profiles as claimed in claim 1, it is characterised in that: the distance of the half that described groove line segment (3) is translated the difference of the radius of curvature of described concave arc (2) and the radius of curvature of described dome arc (1) by described common tangent (4) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402761.9A CN105937602A (en) | 2016-06-07 | 2016-06-07 | Double-arc gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402761.9A CN105937602A (en) | 2016-06-07 | 2016-06-07 | Double-arc gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105937602A true CN105937602A (en) | 2016-09-14 |
Family
ID=57151760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610402761.9A Pending CN105937602A (en) | 2016-06-07 | 2016-06-07 | Double-arc gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105937602A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327559A (en) * | 2017-09-01 | 2017-11-07 | 西南大学 | A kind of helical gear of circular arc parabola Multi-contact |
| CN112518045A (en) * | 2020-12-25 | 2021-03-19 | 南京航空航天大学 | Method for processing gear texture surface |
| CN113090716A (en) * | 2021-03-25 | 2021-07-09 | 郑州爱丁宝机电科技有限公司 | Fixed few tooth difference reduction gearing of fluted disc |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060343A (en) * | 1991-10-24 | 1992-04-15 | 太原工业大学 | Bidirectional circular-arc gear |
| RU2116532C1 (en) * | 1995-10-26 | 1998-07-27 | Акционерное общество "Новолипецкий металлургический комбинат" | Spiral gear transmission |
| JP2004092697A (en) * | 2002-08-29 | 2004-03-25 | Chiba Dies:Kk | Gear |
| CN101338814A (en) * | 2008-08-28 | 2009-01-07 | 段建中 | Tooth profile gear |
| CN104074948A (en) * | 2014-07-02 | 2014-10-01 | 天津工业大学 | Cup-shaped harmonic gear with common tangent type double-circular arc tooth profile and tooth profile design method of gear |
| CN205841667U (en) * | 2016-06-07 | 2016-12-28 | 中山爱耕压缩机有限公司 | A kind of Novikov gears with double circular arc tooth profiles |
-
2016
- 2016-06-07 CN CN201610402761.9A patent/CN105937602A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060343A (en) * | 1991-10-24 | 1992-04-15 | 太原工业大学 | Bidirectional circular-arc gear |
| RU2116532C1 (en) * | 1995-10-26 | 1998-07-27 | Акционерное общество "Новолипецкий металлургический комбинат" | Spiral gear transmission |
| JP2004092697A (en) * | 2002-08-29 | 2004-03-25 | Chiba Dies:Kk | Gear |
| CN101338814A (en) * | 2008-08-28 | 2009-01-07 | 段建中 | Tooth profile gear |
| CN104074948A (en) * | 2014-07-02 | 2014-10-01 | 天津工业大学 | Cup-shaped harmonic gear with common tangent type double-circular arc tooth profile and tooth profile design method of gear |
| CN205841667U (en) * | 2016-06-07 | 2016-12-28 | 中山爱耕压缩机有限公司 | A kind of Novikov gears with double circular arc tooth profiles |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327559A (en) * | 2017-09-01 | 2017-11-07 | 西南大学 | A kind of helical gear of circular arc parabola Multi-contact |
| CN107327559B (en) * | 2017-09-01 | 2023-04-07 | 西南大学 | Circular arc parabola multi-point contact helical gear |
| CN112518045A (en) * | 2020-12-25 | 2021-03-19 | 南京航空航天大学 | Method for processing gear texture surface |
| CN112518045B (en) * | 2020-12-25 | 2022-04-08 | 南京航空航天大学 | Method for processing gear texture surface |
| CN113090716A (en) * | 2021-03-25 | 2021-07-09 | 郑州爱丁宝机电科技有限公司 | Fixed few tooth difference reduction gearing of fluted disc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 528400, Jinxiu Road, 113, Fu town, Guangdong, Zhongshan Applicant after: Guangdong i-Link Energy Equipment Co., Ltd. Address before: 528400, Jinxiu Road, 113, Fu town, Guangdong, Zhongshan Applicant before: ZHONGSHAN AGAIN COMPRESSOR CO., LTD. |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 528427 101 unit 101, No. 23, Tongji West Road, Nantou Town, Nantou, Guangdong Applicant after: Guangdong i-Link Energy Equipment Co., Ltd. Address before: 528400, Jinxiu Road, 113, Fu town, Guangdong, Zhongshan Applicant before: Guangdong i-Link Energy Equipment Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160914 |