CN106438920A - Variable-double-curve circular-arc-tooth-trace cylindrical gear - Google Patents
Variable-double-curve circular-arc-tooth-trace cylindrical gear Download PDFInfo
- Publication number
- CN106438920A CN106438920A CN201610667298.0A CN201610667298A CN106438920A CN 106438920 A CN106438920 A CN 106438920A CN 201610667298 A CN201610667298 A CN 201610667298A CN 106438920 A CN106438920 A CN 106438920A
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- China
- Prior art keywords
- gear
- tooth
- face
- cutter
- convex
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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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a gear and relates to a variable-double-curve circular-arc-tooth-trace cylindrical gear and a machining technology method for machining the gear through a large cutter head. The structure of the gear mainly comprises a gear solid (1), gear teeth (2), gear concave faces (3), gear convex faces (4), concave face transition circles (5), convex face transition circles (6), gear tooth top faces (7), concave/convex face tooth traces (8/8'), gear tooth front/rear end faces (9/10), concave/convex middle section gear contours (11/11'), concave face front/rear end face gear contours (12/12') and convex face front/rear end face gear contours (13/13'). When the variable-double-curve circular-arc-tooth-trace cylindrical gear is installed, the variable-double-curve circular-arc-tooth-trace cylindrical gear is not sensitive to the center distance, no axial force exists during transmission, a longer contact line exists, and the bearing capability of a gear pair is better improved. According to a large cutter head machining method, the radius of the cutter head is far larger than the gear width of the machined gear, and paired variable-double-curve circular-arc-tooth-trace cylindrical gears good in engagement can be machined.
Description
Technical field
In first aspect the invention belongs to mechanical transmission fields, more particularly, to a kind of become hyperbolic arc tooth cylindrical gear and
The semi shield oil cylinder processing this gear processes the process of gear, particularly a kind of large carrying capacity, transmission efficiency, stationarity
Get well, noise is low, no axial force change hyperbolic arc tooth cylindrical gear.The gear teeth of described gear have concavo-convex two flank of tooth, tooth
On face, the transversal along facewidth direction is circular arc line, and its flank profil line is involute on the intermediate cross-section of the gear teeth, and from the gear teeth
Section to both ends of the surface each cross section contour be even transition hyp envelope, the gear teeth have symmetrical with regard to middle section
Geometrical property.
In second aspect the invention still further relates to processing the semi shield oil cylinder technological method for processing of said gear, particularly this processing side
In method, cutter radius used are sufficiently large with respect to the facewidth.
Background technology
Gear is conventional actuating device in mechanical industry, has the advantages of stable drive, efficiency high, large carrying capacity,
It is widely applied in the mechanical engineering fields such as automobile, variator, ship, space shuttle, track traffic.But with each engineering neck
The continuous development in domain, more puts forward higher requirement to the combination property of gear.
In gear train assembly at this stage, spur gear, helical gear and herringbone bear etc. are gear teeth forms more typically,
But some obvious defects are all had using the gear driving pair of this several tooth trace.Spur gear, in Meshing Process of Spur Gear, is taken turns
Tooth is simultaneously engaging-in and nibble out along the whole facewidth, and the load that the gear teeth are subject to assumes larger being mutated, easy in engagement process
Produce shock and vibration.Helical gear contact line is not parallel with axis, can produce axial thrust load during transmission, and shafting structure is complicated, rubs
Mistake of wearing increases.There is escape in the middle of herringbone bear gear, increased overall dimension and the consumption of materials of equipment.Meanwhile, exist
During assembling, its symmetry it is difficult to ensure that, one of gear must adopt floating support, easily causes unbalance loading and floating gear axle
To play, increase mesh vibration, and then the inefficacy of the pair that drives up.
The purpose of the present invention is to provide a kind of change of novel and unique for said gear is not enough present in gear drive
Hyperbolic arc tooth cylindrical gear, particularly a kind of large carrying capacity, transmission efficiency, stationarity are good, noise is low, no axial force
Change hyperbolic arc tooth cylindrical gear, a kind of semi shield oil cylinder technological method for processing of efficient this kind of gear is provided simultaneously.Should
Gear contact line in transmission is longer than same parameter spur gear, and combines the feature of its concavo-convex flank of tooth, and its bearing capacity compares spur gear
Height, and its gear teeth is the same with double helical tooth, all have with regard to and the symmetrical characteristic in middle section, avoid in transmission process using tiltedly
Larger axial force during gear drive, and this kind of Gear Processing is convenient, has more preferable processing technique, and in assembling due to it
The flank of tooth is the concavo-convex flank of tooth of circular arc line for tooth trace, enables automatic centering, easy to assembly.
Content of the invention
In order to overcome the shortcomings of straight-tooth, helical teeth, double helical tooth in processing and transmission process and problem, and retain as far as possible
Advantage in existing profile of tooth transmission process, it is an object of the invention to provide a kind of gear with new tooth, particularly one
Kind of bearing capacity height, transmission efficiency, stationarity is good, noise is low, no axial force, new gear change hyperbolic arc tooth line
Roller gear, provides a kind of high in machining efficiency, semi shield oil cylinder technological method for processing of energy Facing to Manufacturing simultaneously.
The technical scheme is that.
A kind of new gear becomes hyperbolic arc tooth cylindrical gear, comprises：Gear entity（1）, gear tooth（2）、
Gear teeth concave surface（3）, gear teeth convex surface（4）, concave surface transition circle（5）, convex surface transition circle（6）, wheel crest top land（7）, male female face tooth trace
（8/8’）, gear teeth front end face（9）, gear teeth rear end face（10）, male female face middle section flank profil line（11/11’）, the front/rear end face of concave surface
Flank profil line（12/12’）, convex surface front/rear end-tooth profile（13/13’）.
Further, each correlated characteristic of described gear tooth, can processing method process as shown in Figure 4.Cutter entity
（14）Uniformly circumferentially it is fixed on cutterhead（19）On, and rotate around cutter axis together with cutterhead, simultaneously gear workpieces（20）
Around own axis（Angular velocity size isW 2）And move along horizontal direction（Linear velocity size isV 2）, particularly：If gear
Reference radius isR 2, thenV 2=W 2* R 2.
Further, described cutter entity end face is an isosceles trapezoid, has inside and outside two cutting edges, and cutting is circumscribed when handing over
Cut sword（18）Process gear concave surface, interior cutting edge（17）Process gear convex surface.Envelope goes out gear to inside and outside blade tip respectively simultaneously
Male and female face fillet surface, 0.38 times of fillet that module may also be employed in actual production modeling approximately to replace transition bent
Face.
Further, due to cutter in working angles（14）Around cutterhead（19）Axis rotates, and becomes hyperbolic arc tooth line cylinder
Gear can regard as by with cone（15/16）Two planes of diameter parallel cut two cone intersection gained entity envelopes and
Become.Dash area shown in Fig. 4 is the cutting face that in the course of processing, convex surface cutter tooth is formed, and is positive cone（15）The part on surface, special
Cutter radius in not described processing methodRMuch larger than gear workpieces widthB.
Further, the concavo-convex enveloping surface that inside and outside described cutter, cutting edge is formed, respectively back taper（16）, positive cone（15）Appearance
The sub-fraction in face, all middle section with regard to respective place cone are symmetrical, therefore the gear tooth that institute's envelope goes out is also with regard in the gear teeth
Section is symmetrical, the gear pair being made up of it when mounted can automatic centering, axial force will not be produced during transmission.
Further, the concavo-convex flank of tooth of described gear, wherein Sectional profile line are involute, and it is parallel to each end of middle section
Face flank profil line is the hyp envelope of even variation, and cutter radius are much larger than the facewidth, therefore along double on facewidth direction
Parameter of curve change is less（Very close to）, the gear pair that is made up of it installing insensitive to centre-to-centre spacing, is being easily installed.
Further, the concavo-convex flank of tooth of described gear, its tooth trace is in the plane launched along a certain bus of roller gear
One section of circular arc line, the gear pair being made up of it has longer contact line in transmission.
Brief description
With embodiment, the present invention is described in further details below in conjunction with the accompanying drawings.
Fig. 1 is the axle surveys view that the present invention becomes hyperbolic arc tooth cylindrical gear.
Fig. 2 is the rear end face view that the present invention becomes hyperbolic arc tooth cylindrical gear.
Fig. 3 is the front end face view that the present invention becomes hyperbolic arc tooth cylindrical gear.
Fig. 4 is the semi shield oil cylinder technological method for processing schematic diagram that the present invention becomes hyperbolic arc tooth cylindrical gear.
Claims (7)
1. a kind of new gear, its structure mainly includes：Gear entity（1）, gear tooth（2）, gear teeth concave surface（3）, the gear teeth convex
Face（4）, concave surface transition circle（5）, convex surface transition circle（6）, wheel crest top land（7）, male female face tooth trace（8/8’）, gear teeth front end face
（9）, gear teeth rear end face（10）, male female face middle section flank profil line（11/11’）, concave surface front/rear end-tooth profile（12/12’）, convex
In front/rear end face flank profil line（13/13’）, its feature with by its enough gear driving pair large carrying capacities, transmission efficiency
High, stationarity is good, noise is low, no axial force.
2. according to claim 1 change hyperbolic arc tooth cylindrical gear it is characterised in that：The gear teeth of described gear are arch
Shape, has concavo-convex two flank of tooth, and the gear teeth are symmetrical with regard to its middle section.
3. according to claim 1 change hyperbolic arc tooth cylindrical gear it is characterised in that：The male female tooth of the described gear teeth
Face middle section flank profil line is involute, and it is parallel to each end-tooth profile of middle section（Including male female flank of tooth front/rear end flank profil
Line）Hyp envelope for even variation.
4. according to claim 1 change hyperbolic arc tooth cylindrical gear it is characterised in that：Its male female face tooth trace is on edge
In the plane of roller gear a certain bus expansion is one section of circular arc line.
5. according to claim 1 change hyperbolic arc tooth cylindrical gear it is characterised in that：Its male female face transition circle is
By outside in cutter（17/18）Point of a knife envelope forms.
6. the change hyperbolic circle-arc tooth according to claim 1, claim 2, claim 3, claim 4, claim 5
Line roller gear, a kind of processing of semi shield oil cylinder becomes the process of hyperbolic arc tooth cylindrical gear it is characterised in that gear workpieces
（20）Axis and cutter（14）（Cutter rotary axis interlaced arrangement）, between workpiece and cutter, do the generating motion of precision（As：Gear
Workpiece not only moved around own axis simultaneously but also in the horizontal direction, and cutter rotates along cutter axis direction）.
7. semi shield oil cylinder processing technique according to claim 6, described cutter inverted trapezoidal cutter, and cutterhead（19）Name half
Footpath R（The i.e. radius of gyration of cutter）Sufficiently large with respect to facewidth B（As:R=500mm, B=80mm）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610667298.0A CN106438920A (en) | 2016-08-15 | 2016-08-15 | Variable-double-curve circular-arc-tooth-trace cylindrical gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610667298.0A CN106438920A (en) | 2016-08-15 | 2016-08-15 | Variable-double-curve circular-arc-tooth-trace cylindrical gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438920A true CN106438920A (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610667298.0A Pending CN106438920A (en) | 2016-08-15 | 2016-08-15 | Variable-double-curve circular-arc-tooth-trace cylindrical gear |
Country Status (1)
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| CN (1) | CN106438920A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114169A (en) * | 2018-10-08 | 2019-01-01 | 天津工业大学 | aviation spiral gear transmission system |
| CN111828583A (en) * | 2020-08-07 | 2020-10-27 | 四川建安工业有限责任公司 | Main speed reducer of automobile drive axle |
| CN114029560A (en) * | 2021-11-30 | 2022-02-11 | 四川大学 | Cutter combination for machining cylindrical gear with variable hyperbolic arc tooth trace and machining method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047137A (en) * | 1990-04-13 | 1990-11-21 | 王国础 | Arc cylindrical gear and processing method |
| CN1060343A (en) * | 1991-10-24 | 1992-04-15 | 太原工业大学 | Bidirectional circular-arc gear |
| JP2002113613A (en) * | 2000-10-05 | 2002-04-16 | Yukinori Ariga | Method for hobbing gear with curved tooth trace |
| 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 |
| CN101890540A (en) * | 2010-07-16 | 2010-11-24 | 扬州大学 | Method for processing curve-tooth cylindrical gear |
-
2016
- 2016-08-15 CN CN201610667298.0A patent/CN106438920A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047137A (en) * | 1990-04-13 | 1990-11-21 | 王国础 | Arc cylindrical gear and processing method |
| CN1060343A (en) * | 1991-10-24 | 1992-04-15 | 太原工业大学 | Bidirectional circular-arc gear |
| JP2002113613A (en) * | 2000-10-05 | 2002-04-16 | Yukinori Ariga | Method for hobbing gear with curved tooth trace |
| 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 |
| CN101890540A (en) * | 2010-07-16 | 2010-11-24 | 扬州大学 | Method for processing curve-tooth cylindrical gear |
Non-Patent Citations (1)
| Title |
|---|
| 任文娟等: "面向制造的弧齿线圆柱齿轮的建模设计", 《制造技术与机床》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114169A (en) * | 2018-10-08 | 2019-01-01 | 天津工业大学 | aviation spiral gear transmission system |
| CN111828583A (en) * | 2020-08-07 | 2020-10-27 | 四川建安工业有限责任公司 | Main speed reducer of automobile drive axle |
| CN114029560A (en) * | 2021-11-30 | 2022-02-11 | 四川大学 | Cutter combination for machining cylindrical gear with variable hyperbolic arc tooth trace and machining method |
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| PB01 | Publication | ||
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Application publication date: 20170222 |