CN105473901B - Helical gear and its manufacture method, geared system - Google Patents
Helical gear and its manufacture method, geared system Download PDFInfo
- Publication number
- CN105473901B CN105473901B CN201480045734.XA CN201480045734A CN105473901B CN 105473901 B CN105473901 B CN 105473901B CN 201480045734 A CN201480045734 A CN 201480045734A CN 105473901 B CN105473901 B CN 105473901B
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- China
- Prior art keywords
- helical gear
- cylindrical blank
- forging
- helical
- molding
- 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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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 28
- 230000002093 peripheral effect Effects 0.000 claims abstract description 28
- 238000005242 forging Methods 0.000 claims abstract description 26
- 238000000465 moulding Methods 0.000 claims abstract description 18
- 210000001226 toe joint Anatomy 0.000 claims abstract description 13
- 238000009825 accumulation Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
- B21K1/305—Making machine elements wheels; discs with gear-teeth helical
-
- 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
- F16H55/14—Construction providing resilience or vibration-damping
- F16H55/16—Construction providing resilience or vibration-damping relating to teeth only
-
- 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
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Forging (AREA)
Abstract
The accumulated pitch error that there is provided helical teeth is small, the helical gear that is simple to manufacture.Helical gear (1) involved by the technical solution of the present invention, is to possess hollow hole (2) and be formed at helical teeth (3), the helical gear of forging and molding of peripheral part, wherein：Crowning processing is applied the toe joint contacting surface of other Gear Contacts with being engaged is unreal, and the accumulated pitch error of the helical teeth (3) of forging and molding provides the accumulated pitch error of below the N6 of accuracy class in table for the accumulated pitch error of international standard defined.
Description
Technical field
The present invention relates to helical gear and its manufacture method and geared system, such as possess hollow hole and be formed at periphery
The helical teeth in portion and the helical gear of forging and molding and its manufacture method, geared system.
Background technology
Helical gear as disclosed in Patent Document 1, is manufactured for example, by continuous forging and molding.
Prior art literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2011-235321 publications
The content of the invention
The subject that the invention solves
Continuous forging and molding and the helical gear that manufactures in this way, the accumulated pitch error of helical teeth is big, if kept intact
It is then low with NV (noise vibration, noise vibration) performance of institute meshed gears.Therefore, it is necessary in helical teeth with institute
Implement crowning processing in the toe joint contacting surface of other gears of engagement.Thus, helical gear manufacture is numerous and diverse.
The present invention completes to solve such problem points, and its purpose is to provide the accumulated pitch error of helical teeth
Helical gear and its manufacture method, geared system small, be simple to manufacture.
A technical solution to solve project
The present invention a technical solution involved by helical gear, be possess hollow hole and be formed at peripheral part helical teeth and
The helical gear of forging and molding, wherein：The toe joint contacting surface relative to other gears engaged it is unreal apply crowning processing, and
The accumulated pitch error of the helical teeth of forging and molding provides the precision in table for the accumulated pitch error of international standard defined
The accumulated pitch error of below grade N6.
Geared system involved by the technical solution of the present invention possesses above-mentioned helical gear.
Helical gear manufacture method involved by the technical solution of the present invention, is in manufacturing and possess by forging and molding
Emptying aperture and be formed at peripheral part helical teeth helical gear method, wherein：Cylindrical blank is configured at forging and molding direction
The depth of parallelism of opposite face, the verticality of inner peripheral portion, the concentricity of inner peripheral portion and peripheral part are fabricated to less than 0.05；In the cylinder
Insertion mandrel, presses the cylindrical blank by punch, makes the cylindrical blank by the mandrel in the inner peripheral portion of blank
The hollow hole that inner peripheral portion becomes predetermined diameter shapes helical teeth by peripheral part of the mould in the cylindrical blank at the same time；With being nibbled
The toe joint contacting surface of other Gear Contacts closed is unreal to apply crowning processing, misses the accumulated pitch of the helical teeth of forging and molding
Difference provides the accumulated pitch error of below the accuracy class N6 in table for the accumulated pitch error of international standard defined.
Invention effect
It is as described above, using the teaching of the invention it is possible to provide the accumulated pitch error of helical teeth is small, the helical gear that is simple to manufacture and its manufacture method,
Geared system.
Brief description of the drawings
Fig. 1 is the helical gear front view for roughly representing present embodiment.
Fig. 2 is the helical gear top perspective view for roughly representing present embodiment.
Fig. 3 is roughly to represent the helical gear of present embodiment, make helical gear reversion and stereogram viewed from above.
Fig. 4 is accumulated pitch error regulation table specified in international standard, is the helical gear essence for representing present embodiment
Spend the figure of grade and conventional helical gear accuracy class.
Fig. 5 is roughly to represent to manufacture the figure of the cylindrical blank used during the helical gear of present embodiment.
Fig. 6 is the process chart for the helical gear manufacture method for roughly representing present embodiment.
Fig. 7 is the process chart for the helical gear manufacture method for roughly representing present embodiment.
Fig. 8 is the end view drawing for representing to have used the helical gear geared system of present embodiment.
Fig. 9 is the sectional view at the IX-IX lines of Fig. 8.
Figure 10 is the sectional side elevation that amplification represents helical gear supporting part.
Embodiment
Hereinafter, while one side for implementing the preferred embodiment of the present invention to illustrating referring to the drawings.But this hair
It is bright to be not limited to following embodiment.In addition, in order to become apparent from explanation, following record and attached drawing suitably simplify.
Helical gear and its manufacture method, geared system to present embodiment illustrate.First, helical gear structure is illustrated
Into.Herein, Fig. 1 is the front view for roughly representing helical gear 1.Fig. 2 is the top perspective view for roughly representing helical gear 1.
Fig. 3 roughly represents helical gear 1, is to make helical gear reversion and stereogram viewed from above.Fig. 4 is international standard (ISO)
Specified in accumulated pitch error regulation table, be to represent the helical gear accuracy class of present embodiment and helical gear in the past
The figure of accuracy class.
The helical gear 1 of present embodiment can be shaped by forging, and details are aftermentioned.As shown in Figure 1 to Figure 3, it is such
Helical gear 1 possesses the hollow hole 2 penetrated through on rotation direction of principal axis and is formed at the multiple of peripheral part using cylindrical shape as basic configuration
Helical teeth 3.
Hollow hole 2 is formed as circular from rotation direction of principal axis, has predetermined diameter.On on the basis of hollow hole 2
And rotating helical gear 1, the accumulated pitch on the basis of hollow hole 2 are important.As shown in figure 4, the accumulation tooth of multiple helical teeth 3
Be away from error ISO defineds accumulated pitch error criterion table in accuracy class below N6 (that is, N6, N5, N4, N3 ...)
Accumulated pitch error.Therefore, the accumulated pitch error of multiple helical teeth 3 is conventional about less than 1/2.
Multiple helical teeth 3 are formed in this way, NV performances improve, it is not necessary to which implementation is in the past required to be directed to engaged tooth
The crowning processing of the toe joint contacting surface of wheel.
Therefore, the helical gear 1 of present embodiment, can omit handling the crowning of the toe joint contacting surface of helical teeth 3, institute
It is the gear that remaining has forging texture (Forging makes flesh) in the toe joint contacting surface of helical teeth 3 with it.Alternatively, the helical gear of present embodiment
1 is the gear of shot-peening grain surface (シ ョ ッ ト fleshes face) degree of the degree for the performance for improving the pole top layer after being heat-treated.In addition,
The toe joint contacting surface of helical teeth 3 in the helical gear 1 of present embodiment for forging nature shape, possess general plane, concaved circular cambered surface or
Convex arc surface.
So the accumulated pitch error of multiple helical teeth 3 is set to the accumulation tooth of ISO defineds by the helical gear 1 of present embodiment
The accumulated pitch error of below N6 away from the accuracy class in error criterion table.Therefore, it is possible to will need to helical teeth 3 in the past
The crowning processing of toe joint contacting surface is omitted, and can simply be manufactured.
Omitted moreover, the helical gear 1 of present embodiment can be handled crowning, so in toe joint contacting surface and bottom of the tooth
Boundary member is nearly free from step.Therefore, there is no stress concentration portion in the boundary member of toe joint contacting surface and bottom of the tooth, can form
The high helical gear of intensity.
Next, the manufacture method of the helical gear 1 of present embodiment is illustrated.Herein, Fig. 5 is roughly to represent
The figure of the blank used in the manufacture method of present embodiment.Fig. 6 and Fig. 7 is the manufacture for roughly representing present embodiment
The process chart of method.In addition, manufacturing process itself is the known forging and molding method implemented to manufacture helical gear, so simple
Singly illustrate.
First, cylindrical blank 10 is manufactured.As shown in figure 5, cylindrical blank 10 is manufactured as, forging and molding direction is configured at
The depth of parallelism of opposite face 10a, 10b, the verticality of inner peripheral portion 10c, the concentricity of inner peripheral portion 10c and peripheral part 10d be predetermined
Value below.For example, it is preferable to be fabricated to, the depth of parallelism of opposite face 10a, 10b of cylindrical blank 10, inner peripheral portion 10c it is vertical
Degree, the concentricity of inner peripheral portion 10c and peripheral part 10d are less than 0.05.That is, in the manufacture method of present embodiment, phase is used
The cylindrical blank 10 accurately produced for the conventional cylindrical blank for used in manufacture helical gear.
Next, as shown in fig. 6, the cylindrical blank 10 accurately produced is inserted into mould 23, the mould 23 is embedding
Together in the fixture 22 of forge forming device 20, and in the inner peripheral portion 10c of cylindrical blank 10 be inserted into mandrel 24, by it is multiple (
In illustrated example be four) cylindrical blank 10 be laminated.
Next, as shown in fig. 7, most supervisory cylindrical blank 10 is pressed into by lower section by punch 21.Thus, stacking
Cylindrical blank 10 is pressed into lower section, the cylinder that peripheral part 10d is contacted with the mould 23 at the same time by the cutting portion pressing of mould 23
Blank 10 rotates, and shapes helical teeth in peripheral part successively from the cylindrical blank 10 of the cylindrical blank 10 of most subordinate upward.It is same with this
When, the inner peripheral portion 10c of cylindrical blank 10 is pressed by mandrel 24 and is configured to predetermined diameter, is configured to helical gear 1.
Each cylindrical blank 10 accurately manufactures as described above, so can be by mandrel 24 from above-below direction
The central shaft arrangement of mandrel and cylindrical blank 10, and can be with high levelness by each cylindrical blank in roughly equal position
10 stackings.The accumulated pitch error of helical teeth during therefore, it is possible to make forging and molding is extremely small, so, with the system of present embodiment
The NV performances for the helical gear 1 that the method for making produces are high.Thereby, it is possible to the crowning processing and/or grinding that will need in the past at
Reason etc. is substantially omitted, and is simple to manufacture.
Next, the specific occupation mode of the helical gear 1 of present embodiment is illustrated.Herein, Fig. 8 is to represent
The end view drawing of the geared system 30 of the helical gear 1 of present embodiment is used.Fig. 9 is the sectional view at the IX-IX lines of Fig. 8.Figure
10 be the sectional side elevation for the supporting part that amplification represents helical gear 1.
As shown in FIG. 8 and 9, the geared system 30 of present embodiment is used in automatic transmission of automobile etc.
Planetary gear set, is circumferentially equally spaced configured with multiple (being in the present embodiment five) helical gears 1 and is used as small tooth
Wheel, can rotatably be supported on planet carrier 31.
Planet carrier 31 possesses cricoid frame body 32 and planet carrier lid 33, and frame body 32 is engaged with planet carrier lid 33.Pin 34
Through planet carrier 31 and helical gear 1, the end of pin 34 is riveted and is fixed on planet carrier 31.
Helical gear 1 is supported to rotate by the needle bearing ring 35 between the helical gear 1 and pin 34.In helical gear
There are thrust washer 36 between 1 both ends and planet carrier 31.
Herein, after helical gear 1 is shaped by forging, forging convex portion 3c is prominent from helical teeth 3 to forging and molding direction.
At this time, as shown in Figure 10, in the case where the thickness T of the height H specific thrusts packing ring 36 of forging convex portion 3c is low, this can also be preserved
Forge convex portion 3c.Thus, it is possible to which the process for eliminating forging convex portion 3c is omitted, helical gear 1 can be more simply manufactured.
More than, embodiments of the present invention are illustrated, but can not depart from this relative to aforesaid way
Make a change in the range of the technological thought of invention.
In the above-described embodiment, helical gear 1 is used in planetary gear set, but can be also used in other gears
Device.
This application claims preferential based on the Japanese publication Patent 2013-174581 proposed on the 26th of August in 2013
Power, this is written into by its entire disclosure.
Description of reference numerals
1：Helical gear
2：Hollow hole
3：Helical teeth
3a：Toe joint contacting surface
3b：Recess
3c：Forge convex portion
10：Cylindrical blank
10a、10b：Opposite face
10c：Inner peripheral portion
10d：Peripheral part
20：Manufacture device
21：Punch
22：Fixture
23：Mould
24：Mandrel
30：Geared system
31：Planet carrier
32：Frame body
33：Planet carrier lid
34：Pin
35：Needle bearing ring
36：Thrust washer
Claims (2)
1. a kind of helical gear manufacture method, is to manufacture the helical teeth for possessing hollow hole and being formed at peripheral part by forging and molding
Helical gear method, it possesses：
By the depth of parallelism, the verticality of inner peripheral portion, inner peripheral portion of the opposite face for being configured at forging and molding direction of cylindrical blank and outside
The process that the concentricity of circumference is fabricated to less than 0.05；
Multiple cylindrical blanks are inserted into mould and mandrel are inserted into the inner peripheral portion of the multiple cylindrical blank, stacking institute
The process for stating multiple cylindrical blanks；With
The cylindrical blank of the superiors is pressed by punch, the inner peripheral portion of the cylindrical blank is become predetermined straight by the mandrel
The process that the hollow hole in footpath shapes helical teeth by the mould in the peripheral part of the cylindrical blank at the same time；
In the unreal helical teeth applied crowning processing, make forging and molding of the toe joint contacting surface relative to other gears engaged
Accumulated pitch error provide the accumulation tooth of below the accuracy class N6 in table for the accumulated pitch error of international standard defined
Away from error.
2. helical gear manufacture method according to claim 1, wherein, in the process for being laminated the multiple cylindrical blank
In, the opposite face for being configured at forging and molding direction of each cylindrical blank of horizontal arrangement, also, by the multiple cylinder base
The central shaft arrangement of the central shaft of material and the mandrel is in same position.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-174581 | 2013-08-26 | ||
| JP2013174581A JP6040892B2 (en) | 2013-08-26 | 2013-08-26 | Manufacturing method of helical gear |
| PCT/JP2014/003683 WO2015029309A1 (en) | 2013-08-26 | 2014-07-10 | Helical gear, method for manufacturing same, and gear device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105473901A CN105473901A (en) | 2016-04-06 |
| CN105473901B true CN105473901B (en) | 2018-05-01 |
Family
ID=52585909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480045734.XA Active CN105473901B (en) | 2013-08-26 | 2014-07-10 | Helical gear and its manufacture method, geared system |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6040892B2 (en) |
| CN (1) | CN105473901B (en) |
| WO (1) | WO2015029309A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436010B (en) * | 2018-01-23 | 2019-12-10 | 台州万特汽车零部件有限公司 | Cold forging machine for spiral teeth |
| CN112943893A (en) * | 2021-04-02 | 2021-06-11 | 河南睿辰机器人智能科技有限公司 | Durable drive gear set and speed reducer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007154911A (en) * | 2005-11-30 | 2007-06-21 | Toyota Motor Corp | Gear structure and pinion gear |
| CN101016945A (en) * | 2005-10-15 | 2007-08-15 | 黄振强 | Wide tooth form relay transmission gear and manufacture method therefor |
| JP2010064100A (en) * | 2008-09-10 | 2010-03-25 | Daido Steel Co Ltd | Gear production device and method for producing the same |
| JP2012152770A (en) * | 2011-01-24 | 2012-08-16 | Aisin Aw Co Ltd | Gear forming device |
| CN102672440A (en) * | 2012-04-28 | 2012-09-19 | 重庆市江津区宏盛机械制造有限公司 | Light rail output bevel wheel machining process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4210027B2 (en) * | 2000-09-20 | 2009-01-14 | 株式会社クリアテック | Helical gear forging device |
| JP4176298B2 (en) * | 2000-09-22 | 2008-11-05 | 株式会社クリアテック | Finishing forging device for internal gear and finishing forging method thereof |
| JP4940255B2 (en) * | 2009-03-02 | 2012-05-30 | 株式会社ヤマナカゴーキン | Helical internal gear machining method and mold |
-
2013
- 2013-08-26 JP JP2013174581A patent/JP6040892B2/en active Active
-
2014
- 2014-07-10 CN CN201480045734.XA patent/CN105473901B/en active Active
- 2014-07-10 WO PCT/JP2014/003683 patent/WO2015029309A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016945A (en) * | 2005-10-15 | 2007-08-15 | 黄振强 | Wide tooth form relay transmission gear and manufacture method therefor |
| JP2007154911A (en) * | 2005-11-30 | 2007-06-21 | Toyota Motor Corp | Gear structure and pinion gear |
| JP2010064100A (en) * | 2008-09-10 | 2010-03-25 | Daido Steel Co Ltd | Gear production device and method for producing the same |
| JP2012152770A (en) * | 2011-01-24 | 2012-08-16 | Aisin Aw Co Ltd | Gear forming device |
| CN102672440A (en) * | 2012-04-28 | 2012-09-19 | 重庆市江津区宏盛机械制造有限公司 | Light rail output bevel wheel machining process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105473901A (en) | 2016-04-06 |
| JP2015042886A (en) | 2015-03-05 |
| JP6040892B2 (en) | 2016-12-07 |
| WO2015029309A1 (en) | 2015-03-05 |
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