CN205780761U - A kind of reducer shell structure reducing drive axle radiated noise - Google Patents
A kind of reducer shell structure reducing drive axle radiated noise Download PDFInfo
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- CN205780761U CN205780761U CN201620457646.7U CN201620457646U CN205780761U CN 205780761 U CN205780761 U CN 205780761U CN 201620457646 U CN201620457646 U CN 201620457646U CN 205780761 U CN205780761 U CN 205780761U
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Abstract
nullThe utility model proposes a kind of reducer shell structure reducing drive axle radiated noise，Flange body、Driven wheel of differential inclusion body、Bearing block supporter、Drive bevel gear bearing supporter、Differential bearing supporter is interconnected with one another integral,It is characterized in that housing outer surface arranges 8 reinforcements altogether，Reinforcement is fully extended on flange body edge by bearing block supporter outer peripheral edge，5 reinforcements are had to be layout parallel to each other and wherein have 2 to coplanar reinforcement，Other 3 reinforcements circumference centered by bearing block supporter is extended on flange body to dissipating，With front 5 angled layouts of parallel reinforcement，The parallel muscle of this utility model reducing gearbox external surface and scattering muscle are comprehensively distributed，Improve reducer shell mode and acoustical behavior，Too increase the area of dissipation of reducing gearbox outer surface simultaneously，Reduce the lubricating oil temperature in shell，Improve the working environment of the parts such as gear.
Description
Technical field
This utility model belongs to automobile drive axle technical field, particularly to a kind of automobile drive axle reducer shell.
Background technology
Automobile drive axle in use, is easily generated noise problem, has a strong impact on to take advantage of and drives comfortableness, makes external environment condition simultaneously
Become sound pollution.The main cause that axle noise produces is as follows: one be driving and driven bevel gear because of flank engagement malposition,
The meshing noise that driving error fluctuation is big, the most high reason of Superposition degree modulus produces, two be bearing when high speed rotary motion because of rolling
The contact noise that the form error of surface, road and rolling element collides each other and formed.The bang path of two kinds of above-mentioned noises,
One way in which is outwardly to radiate by being positioned at the reducer shell of drive axle front position.Common drive axle reducer
Housing uses outer surface without reinforcement, few reinforcement or divergence form reinforcing rib structure, and housing cavity volume design simultaneously is relatively big, when
When being assembled on axle assembly, Integral modes and the acoustic characteristic of housing are poor, and radiated noise is bigger.
Utility model content
This utility model is directed to a kind of reducer shell structure reducing drive axle radiated noise, uses in reducing gearbox appearance
Face carries out parallel muscle and circumference and comprehensively arranges to dissipating muscle, housing cavity use small size structure, improve reducer shell mode and
Acoustic characteristic, reduces reducer shell outwardly radiated noise grade.
The technical solution of the utility model is achieved in that
A kind of reducer shell structure reducing drive axle radiated noise, including flange body, driven wheel of differential inclusion body, bearing block
Supporter, drive bevel gear bearing supporter, differential bearing supporter, be interconnected with one another integral, wherein from mantle tooth
Wheel inclusion body is positioned at flange body end face medium position, is to hand over differential bearing supporter bottom surface with flange body central horizontal vertical
Line be axis, cross section be that U-shaped revolution is handed over to cut with flange body and formed, bearing block supporter is annular, the circle of bearing block supporter
Partly being positioned at the half side position on the lower side, a left side of flange body end face Monday, second half of the circumference of bearing block supporter is positioned at driven wheel of differential bag
End face position on the lower side, volume left side, drive bevel gear bearing supporter is fixed on flange body end face center deviation lower left side position, and
It is positioned at bearing block supporter projection annulus on flange body, differential bearing supporter two parts in left and right altogether, it is fixed on method
On blue body bottom surface, about differential bearing supporter, two parts are arranged in parallel and are listed in the both sides of driven wheel of differential inclusion body,
It is characterized in that, described a kind of reducer shell structure reducing drive axle radiated noise also includes 8 reinforcements, Mei Gejia
One end of strong muscle extends on the circumference of bearing block supporter, the other end extends in flange body outer rim.
Further technical scheme includes:
8 described reinforcements are: the first reinforcement, the second reinforcement, the 3rd reinforcement, the 4th reinforcement, the 5th reinforcement
Muscle, the 6th reinforcement, the 7th reinforcement and the 8th reinforcement, the first reinforcement, the second reinforcement and the 3rd reinforcement are the most fixing
On driven wheel of differential inclusion body and one end of each reinforcement extends to bearing block supporter near driven wheel of differential inclusion body one
On the excircle of side, the other end extends in the flange body outer rim on the right side of driven wheel of differential inclusion body, the first reinforcement, second adds
Strong muscle and the 3rd reinforcement are parallel to each other and parallel with flange body central horizontal vertical, and the 4th reinforcement and the 5th reinforcement are fixed
It is being positioned on the bearing block supporter circumference end face away from the flange body of driven wheel of differential inclusion body side, and the 4th reinforcement and
One end of five reinforcements extends on the bearing block supporter circumference away from driven wheel of differential inclusion body side, the 4th reinforcement and
The other end of five reinforcements extends in the flange body outer rim on the left of driven wheel of differential inclusion body, the 4th reinforcement and the 3rd reinforcement
In the same plane, in the 5th reinforcement and the second reinforcement be generally aligned in the same plane, with the 3rd reinforcement and for direction clockwise
Being sequentially arranged the 7th reinforcement and the 6th reinforcement between four reinforcements, the 7th reinforcement is fixed on driven wheel of differential inclusion body
On, one end of the 7th reinforcement extend to bearing block supporter on the circumference of driven wheel of differential inclusion body side, the other end prolongs
Extending in the flange body outer rim below driven wheel of differential inclusion body, the 6th reinforcement is fixed on flange body end face, the 6th reinforcement
One end extend on the bearing block supporter circumference away from driven wheel of differential inclusion body side, the other end extends to driven wheel of differential
In flange body outer rim on the left of inclusion body, with clockwise as direction, it is disposed with the 8th between the 5th reinforcement and the first reinforcement and adds
Strong muscle, the 8th reinforcement is fixed on flange body end face, and one end of the 8th reinforcement extends to bearing block supporter away from from mantle
On the circumference of gear inclusion body side, the other end extends in the flange body outer rim on the left of driven wheel of differential inclusion body.
The thickness of each reinforcement is 6mm～12mm.
In first reinforcement, the second reinforcement and the 3rd reinforcement, the distance between adjacent two reinforcements is equal and spacing distance
For 60mm～120mm.
Angle between 7th reinforcement and the 3rd reinforcement is 30 °～80 °, the folder between the 6th reinforcement and the 4th reinforcement
Angle is 30 °～80 °.
This utility model structure can reach following effect:
1, the parallel muscle of reducing gearbox external surface and circumference dissipate muscle and comprehensively arrange and little intracavity structure, improve reducing gearbox
Body characteristics of mode and acoustical behavior, can effectively reduce the rank of housing outwardly radiated noise；
2, the layout of reinforcement adds the area of dissipation of reducing gearbox outer surface, reduces the lubricating oil temperature in shell, improves
The working environment of the parts such as gear, extends drive axle service life.
Accompanying drawing explanation
Fig. 1 this utility model structure front shape schematic diagram
The oblique schematic shapes of Fig. 2 this utility model structure
Fig. 3 this utility model structure floor schematic shapes
Fig. 4 this utility model driven wheel of differential inclusion body cross sectional shape schematic diagram
In figure: 1. flange body, 2. driven wheel of differential inclusion body, 3. bearing block supporter, 4. drive bevel gear bearing supporter,
5. differential bearing supporter, 6. the first reinforcement, 7. the second reinforcement, 8. the 3rd reinforcement, 9. the 4th reinforcement, 10.
5th reinforcement, 11. the 6th reinforcements, 12. the 7th reinforcements, 13. the 8th reinforcements.
Detailed description of the invention
Below in conjunction with the accompanying drawings this this utility model structure is described further: as shown in Figures 1 to 4, a kind of reduction drive axle
The reducer shell structure of radiated noise, including flange body 1, driven wheel of differential inclusion body 2, bearing block supporter 3, initiative taper
Gear-bearing supporter 4, differential bearing supporter 5, be interconnected with one another integral, wherein driven wheel of differential inclusion body 2
It is positioned at flange body 1 end face medium position, is to intersect with differential bearing supporter 5 bottom surface with flange body 1 central horizontal vertical
Line be axis cross section be U-shaped rotate hand over cut formed, bearing block supporter 3 is annular, the circumference one of bearing block supporter 3
Partly being positioned at the half side position on the lower side, a left side of flange body 1 end face, second half of the circumference of bearing block supporter 3 is positioned at driven wheel of differential bag
End face position on the lower side, volume 2 left side, drive bevel gear bearing supporter 4 is fixed on flange body 1 end face center deviation lower left side position
Put, and be positioned at the bearing block supporter 3 projection annulus on flange body 1, differential bearing supporter 5 two portions, left and right altogether
Point, it being fixed on flange body 1 bottom surface, two, left and right part is arranged in parallel and is listed in the both sides of driven wheel of differential inclusion body 2, also
Including 8 reinforcements, it it is first reinforcement the 6, second reinforcement the 7, the 3rd reinforcement the 8, the 4th reinforcement the 9, the 5th reinforcement
Muscle the 10, the 6th reinforcement the 11, the 7th reinforcement 12 and the 8th reinforcement 13, the thickness of each reinforcement is 6mm～12mm,
First reinforcement the 6, second reinforcement 7 and the 3rd reinforcement 8 are each attached on driven wheel of differential inclusion body 2 and each reinforcement
One end extend to bearing block supporter 3 on the excircle of driven wheel of differential inclusion body 2 side, the other end extends to driven
In flange body 1 outer rim on the right side of bevel gear inclusion body 2, first reinforcement the 6, second reinforcement 7 and the 3rd reinforcement 8 are mutual
Parallel and parallel with flange body 1 central horizontal vertical, the 4th reinforcement 9 and the 5th reinforcement 10 are held within bearing block
On supporter 3 circumference end face away from the flange body 1 of driven wheel of differential inclusion body 2 side, and the 4th reinforcement 9 and slender acanthopanax
One end of strong muscle 10 extends on the bearing block supporter 3 circumference away from driven wheel of differential inclusion body 2 side, the 4th reinforcement 9
Extend in flange body 1 outer rim on the left of driven wheel of differential inclusion body 2 with the other end of the 5th reinforcement 10, the 4th reinforcement 9
With the 3rd reinforcement 8 in the same plane, in the 5th reinforcement 10 and the second reinforcement 7 are generally aligned in the same plane, with clockwise
For being sequentially arranged the 7th reinforcement 12 and the 6th reinforcement 11 between direction the 3rd reinforcement 8 and the 4th reinforcement 9, the 7th
Reinforcement 12 is fixed on driven wheel of differential inclusion body 2, and it is close that one end of the 7th reinforcement 12 extends to bearing block supporter 3
On the circumference of driven wheel of differential inclusion body 2 side, the other end extends to outside the flange body 1 below driven wheel of differential inclusion body 2
On edge, the 6th reinforcement 11 is fixed on flange body 1 end face, and one end of the 6th reinforcement 11 extends to bearing block supporter 3
On circumference away from driven wheel of differential inclusion body 2 side, the other end extend to the flange body 1 on the left of driven wheel of differential inclusion body 2
In outer rim, with clockwise as direction, between the 5th reinforcement 10 and the first reinforcement 6, it is disposed with the 8th reinforcement 13, the 8th
Reinforcement 13 is fixed on flange body 1 end face, and one end of the 8th reinforcement 13 extends to bearing block supporter 3 away from from mantle
On the circumference of gear inclusion body 2 side, the other end extends in flange body 1 outer rim on the left of driven wheel of differential inclusion body 2.
In first reinforcement the 6, second reinforcement 7 and the 3rd reinforcement 8, the distance between adjacent two reinforcements is equal and spacer
From for 60mm～120mm.Angle between 7th reinforcement 12 and the 3rd reinforcement 8 is 30 °～80 °, the 6th reinforcement
11 and the 4th angles between reinforcement 9 are 30 °～80 °.
It is as follows that process is analyzed in reducer shell acoustics and characteristics of mode optimization:
1, model analysis: setting up Driving axle housing FEM (finite element) model (including reducer shell and axle housing body), FEM (finite element) model is divided
Analysis parameter is shown in Table 1, and model material parameter is shown in Table 2.
Table 1 FEM (finite element) model parameter comparison
| Classification | Cell type | Cell size | Node total number | Unit sum |
| Prior art | Tetra10 | 6 | 811534 | 444560 |
| This utility model structure | Tetra10 | 6 | 825399 | 453579 |
Table 2 model analysis material therefor parameter
| Parts | Material trademark | Elastic modulus E (Mpa) | Poisson's ratio (μ) | Density (kg/mm3) |
| Reducing gearbox | QT450-10 | 1.75e+5 | 0.31 | 7.2e-6 |
| Other | 355L | 2.1e+5 | 0.30 | 7.8e-6 |
Prior art is shown in Table 3 with the FEM modal analysis and modal (it is crucial that front 10 rank) of this utility model structure.
Table 3 two schemes FEM modal analysis and modal (front 10 rank)
Modal Optimization conclusion is as follows: (1) compared with prior art, and this utility model first step mode frequency improves 18.2Hz；
(2), in the range of 3000Hz, compared with prior art, the mode number of this utility model structure decreases 3 rank.
2, acoustic analysis: set up Driving axle housing boundary element model (including reducer shell and axle housing body) and 1m site point
Analysis model.Boundary element model analytical parameters is shown in Table 4, model material parameter ibid table 2.
Table 4 boundary element model parameter comparison
| Classification | Cell type | Cell size | Node total number | Unit sum |
| Prior art | Quad4 | 10 | 20323 | 20321 |
| This utility model structure | Quad4 | 10 | 21521 | 21519 |
Structural analysis process: axle housing is carried out Free Modal Analysis, at bearing block position imposed load, frequency range be (0～
3000) Hz, step-length is 1Hz, carries out modal response calculating with VL-Noise and vibration solver.
Acoustic Optimization analyzes conclusion: in (400-3000) Hz, prior art radiated level is 88.1dB (A),
This utility model structural radiation acoustic power level is 86dB (A), and radiated noise grade reduces 2.1dB (A).
The comprehensive above relative analysis to reducer shell, this utility model structure can be effectively improved the characteristics of mode of housing, reduces
The rank of reducer shell outwardly radiated noise, improves the serviceability of automobile drive axle.
Claims (5)
- null1. the reducer shell structure reducing drive axle radiated noise，Including flange body (1)、Driven wheel of differential inclusion body (2)、Bearing block supporter (3)、Drive bevel gear bearing supporter (4)、Differential bearing supporter (5)，It is interconnected with one another integral，Wherein driven wheel of differential inclusion body (2) is positioned at flange body (1) end face medium position，It is as axis with flange body (1) central horizontal vertical and differential bearing supporter (5) bottom surface intersection、Cross section is that U-shaped revolution hands over a section formation with flange body (1)，Bearing block supporter (3) is annular，The circumference half of bearing block supporter (3) is positioned at the half side position on the lower side, a left side of flange body (1) end face，Second half of the circumference of bearing block supporter (3) is positioned at end face position on the lower side, driven wheel of differential inclusion body (2) left side，Drive bevel gear bearing supporter (4) is fixed on flange body (1) end face center deviation lower left side position，And it is positioned at the bearing block supporter (3) projection annulus on flange body (1)，Differential bearing supporter (5) two parts in left and right altogether，It is fixed on flange body (1) bottom surface，Two parts in differential bearing supporter (5) left and right are arranged in parallel and are listed in the both sides of driven wheel of differential inclusion body (2)，It is characterized in that，Described a kind of reducer shell structure reducing drive axle radiated noise also includes 8 reinforcements，One end of each reinforcement extends on the circumference of bearing block supporter (3)、The other end extends in flange body (1) outer rim.
- nullA kind of reducer shell structure reducing drive axle radiated noise the most according to claim 1，It is characterized in that，8 described reinforcements are: the first reinforcement (6)、Second reinforcement (7)、3rd reinforcement (8)、4th reinforcement (9)、5th reinforcement (10)、6th reinforcement (11)、7th reinforcement (12) and the 8th reinforcement (13)，First reinforcement (6)、Second reinforcement (7) and the 3rd reinforcement (8) are each attached on driven wheel of differential inclusion body (2) and one end of each reinforcement extends to bearing block supporter (3) on the excircle of driven wheel of differential inclusion body (2) side、The other end extends in flange body (1) outer rim on driven wheel of differential inclusion body (2) right side，First reinforcement (6)、Second reinforcement (7) is parallel to each other with the 3rd reinforcement (8) and parallel with flange body (1) central horizontal vertical，4th reinforcement (9) and the 5th reinforcement (10) are held within bearing block supporter (3) circumference away from the end face of the flange body (1) of driven wheel of differential inclusion body (2) side，And the 4th one end of reinforcement (9) and the 5th reinforcement (10) extend on the bearing block supporter (3) circumference away from driven wheel of differential inclusion body (2) side，The other end of the 4th reinforcement (9) and the 5th reinforcement (10) extends in flange body (1) outer rim in driven wheel of differential inclusion body (2) left side，4th reinforcement (9) is with the 3rd reinforcement (8) in the same plane，In 5th reinforcement (10) and the second reinforcement (7) are generally aligned in the same plane，To be sequentially arranged the 7th reinforcement (12) and the 6th reinforcement (11) between direction the 3rd reinforcement (8) and the 4th reinforcement (9) clockwise，7th reinforcement (12) is fixed on driven wheel of differential inclusion body (2)，One end of 7th reinforcement (12) extends to bearing block supporter (3) on the circumference of driven wheel of differential inclusion body (2) side、The other end extends in flange body (1) outer rim of driven wheel of differential inclusion body (2) lower section，6th reinforcement (11) is fixed on flange body (1) end face，One end of 6th reinforcement (11) extends on the bearing block supporter (3) circumference away from driven wheel of differential inclusion body (2) side、The other end extends in flange body (1) outer rim in driven wheel of differential inclusion body (2) left side，With clockwise as direction，It is disposed with the 8th reinforcement (13) between 5th reinforcement (10) and the first reinforcement (6)，8th reinforcement (13) is fixed on flange body (1) end face，One end of 8th reinforcement (13) extends on the bearing block supporter (3) circumference away from driven wheel of differential inclusion body (2) side，The other end extends in flange body (1) outer rim in driven wheel of differential inclusion body (2) left side.
- A kind of reducer shell structure reducing drive axle radiated noise the most according to claim 1 and 2, it is characterised in that the thickness of each reinforcement is 6mm～12mm.
- A kind of reducer shell structure reducing drive axle radiated noise the most according to claim 2, it is characterized in that, in first reinforcement (6), the second reinforcement (7) and the 3rd reinforcement (8), the distance between adjacent two reinforcements is equal and spacing distance is 60mm～120mm.
- A kind of reducer shell structure reducing drive axle radiated noise the most according to claim 2, it is characterized in that, angle between 7th reinforcement (12) and the 3rd reinforcement (8) is 30 °～80 °, and the angle between the 6th reinforcement (11) and the 4th reinforcement (9) is 30 °～80 °.
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|---|---|---|---|
| CN201620457646.7U CN205780761U (en) | 2016-05-19 | 2016-05-19 | A kind of reducer shell structure reducing drive axle radiated noise |
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| CN201620457646.7U CN205780761U (en) | 2016-05-19 | 2016-05-19 | A kind of reducer shell structure reducing drive axle radiated noise |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822754A (en) * | 2016-05-19 | 2016-08-03 | 中国第汽车股份有限公司 | Speed reducer shell structure for reducing radiation noise of drive axle |
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- 2016-05-19 CN CN201620457646.7U patent/CN205780761U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822754A (en) * | 2016-05-19 | 2016-08-03 | 中国第汽车股份有限公司 | Speed reducer shell structure for reducing radiation noise of drive axle |
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