CN102218572B - Shaping method and manufacturing method for involute straight tooth planetary transmission gear - Google Patents
Shaping method and manufacturing method for involute straight tooth planetary transmission gear Download PDFInfo
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- CN102218572B CN102218572B CN 201110145011 CN201110145011A CN102218572B CN 102218572 B CN102218572 B CN 102218572B CN 201110145011 CN201110145011 CN 201110145011 CN 201110145011 A CN201110145011 A CN 201110145011A CN 102218572 B CN102218572 B CN 102218572B
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Abstract
The invention provides a shaping method and a manufacturing method for an involute straight tooth planetary transmission gear. The shaping method comprises the following steps of: acquiring a scheduled load value; obtaining torsion deformation quantity of the tooth width segment of a sun wheel shaft, bending deformation quantity of the tooth width segment of a planetary wheel shaft and elastic deformation of gear teeth of a planetary wheel according to the scheduled load value; determining an initial value of shaping quantity according to the torsion deformation quantity of the tooth width segment of the sun wheel shaft, the bending deformation quantity of the tooth width segment of the planetary wheel shaft and the elastic deformation quantity of gear teeth of the planetary wheel; shaping the involute straight tooth planetary transmission gear in a virtual environment according to the initial value of the shaping quantity; estimating and verifying the shaped involute straight tooth planetary transmission gear; and determining the final shaping quantity according to estimation and verification results. According to the shaping method, the shaping difficulty is low, the shaping quantity is small, unbalanced loading of the engagement of the planetary gear is eliminated, the transmission stability of the gear is further improved, the bearing capability of the gear is enhanced, and the service life of the gear is prolonged.
Description
Technical field
The present invention relates to field of gears, in particular to a kind of correction method and manufacturing approach of involute straight-tooth planet pinion.
Background technology
Because the modern industry demands of applications, gear train assembly is just towards low-speed heave-load, and the direction of high-speed overload develops.The planetary gear transmission is because its special advantages is widely used in aviation, engineering machinery, boats and ships, field of wind power generation.Gear-driven high reliability, long-life, low noise and level of vibration are the targets that Gear Transmission Design person pursued always; But gear drive is owing to receive manufacturing, alignment error; The influence of factors such as the strain of support system and the strain of the gear teeth own; Gear pair inevitably can produce impact, vibration in the process of engagement, phenomenons such as unbalance loading, thus cause gear initial failure to occur.
At present, single to satisfy gear-driven high performance requirements from the manufacturing that improves gear and installation accuracy be far from being enough, and can increase the manufacturing cost of gear train assembly like this, do not reach desirable effect simultaneously.
Summary of the invention
The present invention aims to provide a kind of correction method and manufacturing approach of involute straight-tooth planet pinion, and involute straight-tooth planet pinion transmission in the prior art is unstable to solve, bearing capacity difference and be prone to the problem of initial failure.
To achieve these goals, according to an aspect of the present invention, a kind of correction method of involute straight-tooth planet pinion is provided, has may further comprise the steps: obtain the predetermined load value; Obtain the elastic deformation amount of the gear teeth of bending deformation quantity and planetary gear of torsional deflection amount, the planet wheel spindle facewidth section of sun wheel shaft facewidth section according to the predetermined load value; Confirm the initial value of profiling quantity according to the elastic deformation amount of the gear teeth of the bending deformation quantity of the torsional deflection amount of sun wheel shaft facewidth section, planet wheel spindle facewidth section and planetary gear; Initial value according to profiling quantity carries out correction of the flank shape to involute straight-tooth planet pinion in virtual environment; Involute straight-tooth planet pinion to after the correction of the flank shape is assessed checking, and the result who verifies according to assessment confirms final profiling quantity; Wherein, the initial value of profiling quantity comprises: solar wheeling tooth to helical angle profiling quantity, planetary gear to profiling quantity and planetary gear flank profil profiling quantity.
Further, in virtual environment, involute straight-tooth planet pinion is carried out correction of the flank shape for obtaining through following steps according to the initial value of profiling quantity: according to solar wheeling tooth to the helical angle profiling quantity to the solar wheeling tooth of involute straight-tooth planet pinion to the helical angle correction of the flank shape; According to planetary gear to the planetary gear axial modification of profiling quantity to involute straight-tooth planet pinion; And according to of the planetary gear flank profil correction of the flank shape of planetary gear flank profil profiling quantity to involute straight-tooth planet pinion.
Further, solar wheeling tooth is in the opposite direction to the torsional deflection of helical angle correction of the flank shape direction and sun wheel shaft.
Further, the planetary gear axial modification is that teeth directional is repaiied drum, and it is the circular curve that waits radius that teeth directional is repaiied the bulging bulging curve of repairing.
Further, the starting point of planetary gear flank profil correction of the flank shape is that single bidentate alternately meshes transfer point, and the correction of the flank shape of planetary gear flank profil comprises that two single bidentates alternately mesh transfer point and make straight line towards the tooth top correction of the flank shape terminal point and the tooth root correction of the flank shape terminal point of gear respectively.
Further, the elastic deformation amount of the bending deformation quantity of the torsional deflection amount of sun wheel shaft facewidth section, planet wheel spindle facewidth section and the gear teeth confirms through Finite Element Method.
Further, the predetermined load value is the nominal operation load of involute straight-tooth planet pinion.
According to a further aspect in the invention, a kind of profiling quantity of manufacturing approach acquisition planet pinion of involute straight-tooth planet pinion is provided, has used above-mentioned correction method, utilized numerically control grinder that involute straight-tooth planet pinion is carried out correction of the flank shape.
Use technical scheme of the present invention; Obtain the elastic deformation amount of the gear teeth of bending deformation quantity and planetary gear of torsional deflection amount, the planet wheel spindle facewidth section of sun wheel shaft facewidth section based on the predetermined load value; Confirm the initial value of profiling quantity in virtual environment, involute straight-tooth planet pinion to be carried out correction of the flank shape according to above-mentioned deflection, assess checking again; Result according to the assessment checking adjusts profiling quantity, confirms final profiling quantity.Technical scheme of the present invention is carried out correction of the flank shape on the basis that does not increase gear manufacturing and installation accuracy; Correction of the flank shape difficulty and profiling quantity are less; Effectively reduce the vibration and the noise of Gear Planet Transmission, eliminated the unbalance loading phenomenon of planetary gear engagement, and then improved the transmission stability of gear; Improve the bearing capacity of gear, prolonged the service life of gear.
Description of drawings
The Figure of description that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of involute straight-tooth planet pinion embodiment;
Fig. 2 shows the schematic top plan view of the embodiment of involute straight-tooth planet pinion;
Fig. 3 shows according to sun gear correction of the flank shape sketch map in the correction method of involute straight-tooth planet pinion of the present invention;
Fig. 4 shows the axial modification sketch map according to planetary gear in the correction method of involute straight-tooth planet pinion of the present invention; And
Fig. 5 shows the profile modification sketch map according to planetary gear in the correction method of involute straight-tooth planet pinion of the present invention.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
In conjunction with referring to Fig. 1 to Fig. 2, show the structural representation and the schematic top plan view of involute straight-tooth planet pinion, as can be seen from the figure, involute straight-tooth planetary gear generally comprises: sun gear 1, a gear ring 3 and an a plurality of planetary gear 2.Correction method of the present invention comprises the correction of the flank shape to the correction of the flank shape of sun gear 1 and planetary gear 2, need not gear ring 3 corrections of the flank shape.
The correction method of involute straight-tooth planet pinion may further comprise the steps:
Particularly, the predetermined load value is the nominal operation load of involute straight-tooth planet pinion, and this nominal operation load can be confirmed according to the load and the loading spectrum data of Gear Planet Transmission train.Nominal operation load is the full power load of planet pinion work; Under this load, carry out gear modification, can make gear obtain contact condition and flank of tooth load distribution comparatively uniformly preferably, obviously; Under the situation of other little load, the working condition of gear also can make moderate progress.Simultaneously planet pinion usually the working time under rated load longer, if can reduce the working stress level of this load lower gear, the life-span of gear also can be greatly improved.Certain correction method of the present invention also is not limited under rated load, also can be used for other load conditions.
Particularly, the elastic deformation amount of the gear teeth of the bending deformation quantity of the torsional deflection amount of sun wheel shaft facewidth section 10, planet wheel spindle facewidth section 20 and planetary gear confirms through Finite Element Method.
Step 4, in virtual environment, involute straight-tooth planet pinion is carried out correction of the flank shape according to the initial value of profiling quantity.Particularly, in step 4, adopt following steps in virtual environment, involute straight-tooth planet pinion to be carried out correction of the flank shape according to the initial value of profiling quantity:
As shown in Figure 3, according to solar wheeling tooth to helical angle profiling quantity L
1To the solar wheeling tooth of involute straight-tooth planet pinion to the helical angle correction of the flank shape, wherein, helical angle profiling quantity L
1Be the torsional deflection amount of sun wheel shaft facewidth section 10, solar wheeling tooth is in the opposite direction to the torsional deflection of helical angle correction of the flank shape direction and sun wheel shaft.Solar wheeling tooth can compensate because the teeth directional unbalance loading that the sun wheel shaft torsional deflection causes to the helical angle correction of the flank shape.
As shown in Figure 4, according to planetary gear to profiling quantity L
2To the planetary gear axial modification of involute straight-tooth planet pinion, wherein, planetary gear is to profiling quantity L
2Bending deformation quantity for planet wheel spindle facewidth section 20.Preferably, the planetary gear axial modification is that teeth directional is repaiied drum, and planetary gear is to profiling quantity L
2For repairing the drum amount, it is the circular curve that waits radius that teeth directional is repaiied the bulging bulging curve of repairing, and arc radius is confirmed by repairing the drum amount.Planetary gear axial modification (repairing drum) can compensate because the gear edge contact that planet wheel spindle flexural deformation causes.
As shown in Figure 5, according to planetary gear flank profil profiling quantity L
3To the planetary gear flank profil correction of the flank shape of involute straight-tooth planet pinion, the maximum wide profiling quantity L of planetary gear wherein
3Elastic deformation amount for the gear teeth of planetary gear.Preferably; The correction of the flank shape of planetary gear flank profil comprises: tooth top correction of the flank shape and tooth root correction of the flank shape, and the starting point of the starting point of tooth top correction of the flank shape and tooth root correction of the flank shape is respectively the alternately transfer point of engagement of single bidentate; The planetary gear profile modification extends to whole teeth directional direction; Alternately mesh transfer point by two single bidentates and make straight line towards the tooth top correction of the flank shape terminal point and the tooth root correction of the flank shape terminal point of gear respectively, wherein, as shown in Figure 5; With cut-point the theoretical involute of planetary gear is divided into three parts; Cut-point is alternately transfer point 21 and the single bidentate transfer point 22 of engagement alternately of engagement of single bidentate, and tooth top to single bidentate alternately transfer point 21 and single bidentate of engagement be the bidentate region of engagement between transfer point 22 to the tooth root of engagement alternately, and single bidentate is the monodentate region of engagement between transfer point 21 and the transfer point 22 that single bidentate alternately meshes of engagement alternately; Tooth top correction of the flank shape terminal point and tooth root correction of the flank shape terminal point are the maximum wide profiling quantity L of planetary gear with the distance at flank profil edge respectively
3
Step 5, the involute straight-tooth planet pinion after the correction of the flank shape is assessed checking, confirm final profiling quantity according to the result of assessment checking.Specifically; Need to consider that system synthesis rigidity such as planet carrier, casing are to the influence of gear contact in the planet pinion; Adopt gear dynamic contact analysis software, the contact condition of the planet pinion before and after the correction of the flank shape is compared analysis, effect after the assessment correction of the flank shape; According to circumstances profiling quantity is finely tuned, reevaluate the back and confirm final profiling quantity.Wherein, recruitment evaluation is mainly assessed the distribution situation of Contact Stress of Gear, the driving error situation of change in the gears engaged process.The target of axial modification is to obtain uniform flank of tooth load to distribute, and the target of profile modification is to obtain minimum driving error peak value and smooth transmission error curve.These targets are to realize through the size of adjusting profiling quantity.
Therefore; Said method carries out correction of the flank shape on the basis that does not increase gear manufacturing and installation accuracy, correction of the flank shape difficulty and profiling quantity are less, effectively reduces the vibration and the noise of Gear Planet Transmission; Eliminated the unbalance loading phenomenon of planetary gear engagement; And then improved the transmission stability of gear, and improved the bearing capacity of gear, prolonged the service life of gear.
The present invention also provides a kind of manufacturing approach of involute straight-tooth planet pinion, uses above-mentioned correction method to obtain the profiling quantity of planet pinion, utilizes numerically control grinder that involute straight-tooth planet pinion is carried out correction of the flank shape.Gear drive after the correction of the flank shape is stationarity more, and bearing capacity is strong, simultaneously long service life.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the correction method of an involute straight-tooth planet pinion is characterized in that, may further comprise the steps:
Obtain the predetermined load value;
Obtain the elastic deformation amount of the gear teeth of bending deformation quantity and planetary gear of torsional deflection amount, the planet wheel spindle facewidth section (20) of sun wheel shaft facewidth section (10) according to said predetermined load value;
Confirm the initial value of profiling quantity according to the elastic deformation amount of the gear teeth of the bending deformation quantity of the torsional deflection amount of said sun wheel shaft facewidth section (10), said planet wheel spindle facewidth section (20) and said planetary gear;
Initial value according to said profiling quantity carries out correction of the flank shape to said involute straight-tooth planet pinion in virtual environment;
Said involute straight-tooth planet pinion to after the correction of the flank shape is assessed checking, and the result who verifies according to said assessment confirms final profiling quantity;
Wherein, the initial value of said profiling quantity comprises: solar wheeling tooth is to helical angle profiling quantity (L
1), planetary gear is to profiling quantity (L
2) and planetary gear flank profil profiling quantity (L
3).
2. correction method according to claim 1 is characterized in that, in virtual environment, said involute straight-tooth planet pinion is carried out correction of the flank shape for obtaining through following steps according to the initial value of said profiling quantity:
According to said solar wheeling tooth to helical angle profiling quantity (L
1) to the solar wheeling tooth of said involute straight-tooth planet pinion to the helical angle correction of the flank shape;
According to said planetary gear to profiling quantity (L
2) to the planetary gear axial modification of said involute straight-tooth planet pinion; And
According to said planetary gear flank profil profiling quantity (L
3) to the planetary gear flank profil correction of the flank shape of said involute straight-tooth planet pinion.
3. correction method according to claim 2 is characterized in that said solar wheeling tooth is in the opposite direction to the torsional deflection of helical angle correction of the flank shape direction and sun wheel shaft.
4. according to claim 2 or 3 described correction methods, it is characterized in that said planetary gear axial modification is that teeth directional is repaiied drum, it is the circular curve that waits radius that said teeth directional is repaiied the bulging bulging curve of repairing.
5. according to claim 2 or 3 described correction methods; It is characterized in that; The starting point of said planetary gear flank profil correction of the flank shape is that single bidentate alternately meshes transfer point, and the correction of the flank shape of said planetary gear flank profil comprises that two said single bidentates alternately mesh transfer point and make straight line towards the tooth top correction of the flank shape terminal point and the tooth root correction of the flank shape terminal point of said gear respectively.
6. according to claim 2 or 3 described correction methods, it is characterized in that the bending deformation quantity of the torsional deflection amount of said sun wheel shaft facewidth section (10), said planet wheel spindle facewidth section (20) and the elastic deformation amount of the said gear teeth confirm through Finite Element Method.
7. according to each described correction method in the claim 1 to 3, it is characterized in that said predetermined load value is the nominal operation load of said involute straight-tooth planet pinion.
8. the manufacturing approach of an involute straight-tooth planet pinion; It is characterized in that; Use the profiling quantity of each described correction method acquisition planet pinion in the claim 1 to 7, utilize numerically control grinder that said involute straight-tooth planet pinion is carried out correction of the flank shape.
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| CN 201110145011 CN102218572B (en) | 2011-05-31 | 2011-05-31 | Shaping method and manufacturing method for involute straight tooth planetary transmission gear |
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| CN 201110145011 CN102218572B (en) | 2011-05-31 | 2011-05-31 | Shaping method and manufacturing method for involute straight tooth planetary transmission gear |
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| CN106704544A (en) * | 2016-12-20 | 2017-05-24 | 大连名阳实业有限公司 | Shape correction method for reducing noise or abnormal sound of gears |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1036624A2 (en) * | 1999-03-15 | 2000-09-20 | GLEASON-PFAUTER, Maschinenfabrik GmbH | Method of machining width crowned spur gears by a diagonal generating method using continuous indexing |
| CN1329959A (en) * | 2000-06-30 | 2002-01-09 | 易通公司 | Polished gear surface |
| CN101085480A (en) * | 2007-07-02 | 2007-12-12 | 中国南车集团戚墅堰机车车辆工艺研究所 | Tooth direction shaping gear hobbing processing technique |
| CN101518840A (en) * | 2009-04-03 | 2009-09-02 | 宜昌长机科技有限责任公司 | Numerical control gear shaping error compensation and gear profile modification method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5015216B2 (en) * | 2009-10-05 | 2012-08-29 | 陸聯精密股▲ふん▼有限公司 | Gear and method for forming a tooth profile of the gear |
-
2011
- 2011-05-31 CN CN 201110145011 patent/CN102218572B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1036624A2 (en) * | 1999-03-15 | 2000-09-20 | GLEASON-PFAUTER, Maschinenfabrik GmbH | Method of machining width crowned spur gears by a diagonal generating method using continuous indexing |
| CN1329959A (en) * | 2000-06-30 | 2002-01-09 | 易通公司 | Polished gear surface |
| CN101085480A (en) * | 2007-07-02 | 2007-12-12 | 中国南车集团戚墅堰机车车辆工艺研究所 | Tooth direction shaping gear hobbing processing technique |
| CN101518840A (en) * | 2009-04-03 | 2009-09-02 | 宜昌长机科技有限责任公司 | Numerical control gear shaping error compensation and gear profile modification method |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2011-79077A 2011.04.21 |
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