CN104976316A - Gear with multiple arc tooth profiles - Google Patents
Gear with multiple arc tooth profiles Download PDFInfo
- Publication number
- CN104976316A CN104976316A CN201510315542.2A CN201510315542A CN104976316A CN 104976316 A CN104976316 A CN 104976316A CN 201510315542 A CN201510315542 A CN 201510315542A CN 104976316 A CN104976316 A CN 104976316A
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- CN
- China
- Prior art keywords
- circular arc
- gear
- arc
- work
- nodel line
- 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
- 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
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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
- F16H2055/086—Silent gear profiles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a gear with multiple arc tooth profiles. The gear comprises a gear body and multiple gear teeth arranged on the periphery of the gear body. The single tooth profile of each gear tooth is composed of N sections of working arcs; N is greater than or equal to six and is an even number; every two adjacent working arcs are connected through a transition arc, and the working arc at the bottommost and the corresponding tooth root are also connected through a transition arc. The number of meshing points at every moment when the gear is meshed is large, the bearing capacity is high, and the vibration noise is low.
Description
Technical field
The invention belongs to mechanical transmission device design field, relate to a kind of many circular arc profiles gear.
Background technique
Single-circular-arc gear proposes (convex, recessed tooth is made arc toothed spiral gear, and normal plane flank profil is circular arc) in nineteen twenty-six by American Wildhaber, and achieves patent.1954, Soviet Union engineer Novikov proposes again gear gear face profile of tooth being made convex-concave circular arc, and carried out theory of engagement analysis and strength test, and obtain Russian Patent, test shows, for same material, the circular tooth gear of same size, the bearing capacity of this gear is 3-4 times of same size involute gear, and in transmission, the flank of tooth easily forms dynamic pressure oil film, its contact strength exceeds 2-6 doubly than involute gear, long service life.
Japan is also studied circular tooth gear, Hitachi protects and prolongs and really claim: he and Novi Ke husband independent development circular tooth gear separately simultaneously, and is named as ACP (Arc Tooth With Centerat Pitch Point) gear.
Nineteen sixty-eight, the R.M.Studer of Rolls-Royce company of Britain proposes segment double circular arc gear, achieves U. S. Patent.This Novikov gears with double circular arc tooth profiles through improving, gear teeth flexural strength obtains raising by a relatively large margin, and, overcome the shortcoming that spot corrosion easily occurs at common tangent type Tooth Middle of Double Circular-arc Gear transition curve place.
China from the circular tooth gear that begins one's study in 1958, and has promulgated single-circular-arc gear basic tooth profile standard (JB929-67) in 1967.Work out again JB 1585-75 afterwards, JB 1586-75 circular-arc gear decelerator standard and high speed circular gear with curved teeth speed changer series.From the eighties, China has worked out GB 1840-89 circular tooth gear modulus series standard successively, JB4021-85 arc circle letter cutter wheel accuracy standard, GB 12759-91 Novikov gears with double circular arc tooth profiles basic rack tooth profile standard, JB3913-91 double circular arc tooth human relations hobboing cutter standard, GB/T13799-92 circular-arc gear bearing capacity computational methods.Wherein, research and the formulation of GB/T13799-92 circular-arc gear bearing capacity computational methods are significant achievement advanced in the world at that time, due to each instantaneous point of contact number during increase gears meshing, its flexural strength can be significantly improved, but up to the present, the gear of each instantaneous contact points number when also not occurring significantly increasing engagement.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of many circular arc profiles gear, this gear each instantaneous contact points number when engaging is more.
For achieving the above object, many circular arc profiles gear of the present invention comprises gear and some gear teeth being located at outer peripheral gear, the one-sided flank profil of each gear teeth forms by N section work circular arc, and N is more than or equal to 6, N is even number, between adjacent two work circular arcs and the work circular arc of bottommost be all connected by transition arc with between tooth root.
N/2 work circular arc in N section work circular arc is positioned on nodel line, and N/2 work circular arc is positioned under nodel line in addition, and N/2 the work circular arc be positioned on nodel line is dome arc, and N/2 the work circular arc be positioned under nodel line is concave circular arc.
The transition arc connected between N/2 work circular arc on nodel line is concave circular arc.
The transition arc connected between N/2 work circular arc under nodel line is dome arc.
The transition arc connected between the work circular arc of dome arc and the work circular arc of concave circular arc is concave circular arc.
The center of circle of each work circular arc is not all on nodel line.
The present invention has following beneficial effect:
Many circular arc profiles gear of the present invention comprises gear and the gear teeth, the one-sided flank profil of the gear teeth is made up of N section work circular arc, N is more than or equal to 6, thus improve gear each instantaneous contact points number when engaging, the present invention is not when increasing gear structure, counted by the engagement increased on the single gear teeth, distractive load, improves the bearing capacity of gear.Or when transmitting same load, structure can be less.In addition, increase engagement and count, the load that each contact points place is born reduces, and along with replacing of the gear transmission gear teeth, the vibrating noise that the change of being counted by gears meshing causes can be less, and transmission is more steady.Significantly reduce contact stress and the Dedenda's bending stress at contact points place simultaneously, improve the bearing capacity of gear, transmission is more steady, effectively reduces noise during gear transmission.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the gear teeth 2 in embodiments of the invention one.
Wherein, 1 is that gear, 2 is for the gear teeth.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1, many circular arc profiles gear of the present invention comprises gear (1) and some gear teeth (2) being located at gear (1) periphery, the one-sided flank profil of each gear teeth (2) forms by N section work circular arc, and N is more than or equal to 6, N is even number, between adjacent two work circular arcs and the work circular arc of bottommost be all connected by transition arc with between tooth root.
It should be noted that, N/2 work circular arc in N section work circular arc is positioned on nodel line, and N/2 work circular arc is positioned under nodel line in addition, and N/2 the work circular arc be positioned on nodel line is dome arc, and N/2 the work circular arc be positioned under nodel line is concave circular arc; The transition arc connected between N/2 work circular arc on nodel line is concave circular arc; The transition arc connected between N/2 work circular arc under nodel line is dome arc; The transition arc connected between the work circular arc of dome arc and the work circular arc of concave circular arc is concave circular arc; The center of circle of each work circular arc is not all on nodel line.
Embodiment one
With reference to figure 2, in the present embodiment, N equals 6, and 3 work circular arcs are positioned on nodel line, and 3 work circular arcs are positioned under nodel line, and concrete its parametric is as shown in table 1:
Table 1
Claims (6)
1. circular arc profile gear more than a kind, it is characterized in that, comprise gear (1) and some gear teeth (2) being located at gear (1) periphery, the one-sided flank profil of each gear teeth (2) forms by N section work circular arc, and N is more than or equal to 6, N is even number, between adjacent two work circular arcs and the work circular arc of bottommost be all connected by transition arc with between tooth root.
2. many circular arc profiles gear according to claim 1, it is characterized in that, N/2 work circular arc in N section work circular arc is positioned on nodel line, N/2 work circular arc is positioned under nodel line in addition, and N/2 the work circular arc be positioned on nodel line is dome arc, N/2 the work circular arc be positioned under nodel line is concave circular arc.
3. many circular arc profiles gear according to claim 2, is characterized in that, the transition arc connected between N/2 work circular arc on nodel line is concave circular arc.
4. many circular arc profiles gear according to claim 2, is characterized in that, the transition arc connected between N/2 work circular arc under nodel line is dome arc.
5. many circular arc profiles gear according to claim 2, is characterized in that, the transition arc connected between the work circular arc of dome arc and the work circular arc of concave circular arc is concave circular arc.
6. many circular arc profiles gear according to claim 1, is characterized in that, the center of circle of each work circular arc is not all on nodel line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315542.2A CN104976316A (en) | 2015-06-10 | 2015-06-10 | Gear with multiple arc tooth profiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315542.2A CN104976316A (en) | 2015-06-10 | 2015-06-10 | Gear with multiple arc tooth profiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104976316A true CN104976316A (en) | 2015-10-14 |
Family
ID=54273122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510315542.2A Pending CN104976316A (en) | 2015-06-10 | 2015-06-10 | Gear with multiple arc tooth profiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104976316A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151457A (en) * | 2016-09-09 | 2016-11-23 | 吉立万 | A kind of gear |
| CN108036038A (en) * | 2017-12-07 | 2018-05-15 | 西南大学 | A kind of herringbone bear of circular arc parabola Multi-contact |
| CN113958686A (en) * | 2021-11-05 | 2022-01-21 | 集美大学 | Novel bionic gear |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051745A (en) * | 1975-04-16 | 1977-10-04 | Kabushiki Kaisha Hasegawa Haguruma | Multiple-contact type w-n gear |
| JPS6213867A (en) * | 1985-07-09 | 1987-01-22 | Hasegawa Haguruma:Kk | Addendum wn gear through involute referential rack profile |
| WO1988003623A1 (en) * | 1986-11-03 | 1988-05-19 | Rostovsky Gosudarstvenny Universitet Imeni M.A.Sus | Gear drive with mixed-type meshing |
| CN1041996A (en) * | 1988-10-08 | 1990-05-09 | 苏联洛夫国立罗斯托夫大学 | Hovekov toothed gearing |
| SU1700319A1 (en) * | 1985-08-08 | 1991-12-23 | Ростовский государственный университет им.М.А.Суслова | Gearing |
-
2015
- 2015-06-10 CN CN201510315542.2A patent/CN104976316A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051745A (en) * | 1975-04-16 | 1977-10-04 | Kabushiki Kaisha Hasegawa Haguruma | Multiple-contact type w-n gear |
| JPS6213867A (en) * | 1985-07-09 | 1987-01-22 | Hasegawa Haguruma:Kk | Addendum wn gear through involute referential rack profile |
| SU1700319A1 (en) * | 1985-08-08 | 1991-12-23 | Ростовский государственный университет им.М.А.Суслова | Gearing |
| WO1988003623A1 (en) * | 1986-11-03 | 1988-05-19 | Rostovsky Gosudarstvenny Universitet Imeni M.A.Sus | Gear drive with mixed-type meshing |
| CN1041996A (en) * | 1988-10-08 | 1990-05-09 | 苏联洛夫国立罗斯托夫大学 | Hovekov toothed gearing |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151457A (en) * | 2016-09-09 | 2016-11-23 | 吉立万 | A kind of gear |
| CN106151457B (en) * | 2016-09-09 | 2019-05-24 | 吉立万 | A kind of gear |
| CN108036038A (en) * | 2017-12-07 | 2018-05-15 | 西南大学 | A kind of herringbone bear of circular arc parabola Multi-contact |
| CN108036038B (en) * | 2017-12-07 | 2023-12-29 | 西南大学 | Herringbone gear with arc parabola and multipoint contact |
| CN113958686A (en) * | 2021-11-05 | 2022-01-21 | 集美大学 | Novel bionic gear |
| CN113958686B (en) * | 2021-11-05 | 2023-08-29 | 集美大学 | Novel bionic gear |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151014 |
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| WD01 | Invention patent application deemed withdrawn after publication |