CN105856967A - Drive axle housing body and rear end cover thereof - Google Patents
Drive axle housing body and rear end cover thereof Download PDFInfo
- Publication number
- CN105856967A CN105856967A CN201610247550.2A CN201610247550A CN105856967A CN 105856967 A CN105856967 A CN 105856967A CN 201610247550 A CN201610247550 A CN 201610247550A CN 105856967 A CN105856967 A CN 105856967A
- Authority
- CN
- China
- Prior art keywords
- end cap
- rear end
- axle housing
- driving axle
- shell body
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/16—Axle housings
- B60B35/163—Axle housings characterised by specific shape of the housing, e.g. adaptations to give space for other vehicle elements like chassis or exhaust system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
- B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
- B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to the technical field of automobile parts and discloses a rear end cover of a drive axle. The rear end cover of the drive axle comprises an end cover outer shell and an end cover inner shell. The end cover outer shell is only fixed to the end cover inner shell at the position of the circumferential edge. Except for the position of a fixing point, any portion between the end cover outer shell and the end cover inner shell is provided with a preset gap, and the preset gaps are filled with damping oil. By the adoption of the rear end cover of a drive axle housing body, transmission of vibration noise is effectively lowered by the utilization of a film-damping theory, and therefore the comfort of a whole automobile is improved. The invention further discloses the drive axle housing body which comprises the rear end cover of the drive axle housing body.
Description
Technical field
The present invention relates to technical field of automobile parts, particularly relate to a kind of Driving axle housing and rear end cap thereof.
Background technology
Being made up of Driving axle housing assembly, bevel housing and drive axle wheel end adnexa etc. outside driving axis, inside is made up of main reducing gear, left and right semiaxis and bearing enclosure etc..Housing rear end lid is a part for Driving axle housing assembly, it is possible to use the cavity that welding or the bolted mode of uniform circumference seal with housing body composition, and when normally using, inside cavity injects gear oil provides lubrication for gear and dispels the heat.
Owing to gear engagement during drive axle internal main reducing gear work, gear oil agitation impact produce noise and vibrations, noise and vibrations cause Driving axle housing to shake and to external radiation by radiation and conduction so that this noise and vibrations cause the uncomfortable impression of driver and crew in being delivered to again car load.
Being affected by Technologies such as Gear Processing precision, assembly precisions, gear engagement noise vibrations cannot be avoided.China Patent Publication No. be CN102303481A patent documentation disclosed in technical scheme, by welding metal derby on Driving axle housing, change the modal parameters of drive axle, thus reach the effect of noise reduction, but this mode noise reduction is limited, and can increase the weight of drive axle.China Patent Publication No. be CN104816585A patent documentation disclosed in technical scheme, have employed the mode that damping pad is set on Driving axle housing to realize the effect of damping, in this mode, damping pad is fragile so that damping was lost efficacy, and functional reliability is poor.
Summary of the invention
It is an object of the invention to provide a kind of Driving axle housing and rear end cap thereof, can effectively reduce the vibration noise at driving axis, improve car load comfortableness, and low cost, it is simple to use.
In order to achieve the above object, the invention provides following technical scheme:
A kind of Driving axle housing rear end cap, including end cap shell body and end cap inner housing, described end cap inner housing is only fixed with described end cap shell body at circumferential edge, and in addition to fixing point position, between described end cap shell body and described end cap inner housing, arbitrary place is respectively provided with prepsetting gap, is filled with damping fluid in described prepsetting gap.
Above-mentioned Driving axle housing rear end cap, described prepsetting gap is the most equal.
Above-mentioned Driving axle housing rear end cap, the size of described prepsetting gap is 0.2mm～1.0mm.
Above-mentioned Driving axle housing rear end cap, described end cap inner housing is provided with the through hole dynamic for damping oil liquid stream.
Above-mentioned Driving axle housing rear end cap, described through hole is arranged on the peak of described end cap inner housing.
Above-mentioned Driving axle housing rear end cap, the circumferential edge of described end cap inner housing is provided with at least two boss, and the thickness of described boss is equal in magnitude with described prepsetting gap, and described boss is fixed with described end cap shell body spot welding.
Above-mentioned Driving axle housing rear end cap, described end cap shell body is hemispherical, and recessed formation mounting plane at sphere one；Profile after described end cap inner housing moves inward predeterminable range with described end cap shell body overlaps, and described predeterminable range is equal with described prepsetting gap.
Above-mentioned Driving axle housing rear end cap, described end cap shell body is stamping steel plate, and thickness is 2.5mm.
Above-mentioned Driving axle housing rear end cap, described end cap inner housing is stamping steel plate, and thickness is 1.8mm.
A kind of Driving axle housing, including housing body, described housing body is fixed with in the embodiment of the present invention Driving axle housing rear end cap provided.
The beneficial effects of the present invention is:
The Driving axle housing rear end cap that the present invention provides, it is provided with double-layer shell structure, and the prepsetting gap between two housings is filled with damping fluid, along with hull vibration, damping fluid can form damping oil film, Aanalysis of Film-damping structure is generated heat by shock damping the transmission energy of noise and vibrations of decaying, thus serves the effect of good damping noise reduction.
The Driving axle housing that the present invention provides, owing to including above-mentioned Driving axle housing rear end cover structure, therefore, it is possible to reach same technique effect, here is omitted.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, the accompanying drawing used required in embodiment will be briefly described below, and by combining accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein
The top view of the Driving axle housing rear end cap that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 is A-A direction sectional view in Fig. 1；
Fig. 3 is the structural representation of end cap inner housing in the embodiment of the present invention.
Label declaration in the most above-mentioned accompanying drawing is as follows:
1-end cap shell body, 2-end cap inner housing, 3-through hole, 4-boss, 5-mounting plane.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with specific embodiment, this programme is discussed in detail further.
In Driving axle housing assembly, owing to enclosure body needs to bear complete vehicle weight and road shocks load, the rigidity of enclosure body is typically big than rear end cap, and therefore under vibrational excitation, rear end cap has bigger vibration amplitude, and the effect of shock insulation noise reduction is also the most worse.Based on this, the invention provides a kind of Driving axle housing rear end cap possessing decrease of noise functions.
With reference to Fig. 1 and Fig. 2, described Driving axle housing rear end cap includes end cap shell body 1 and end cap inner housing 2, described end cap inner housing 2 is only fixed with described end cap shell body 1 at circumferential edge, and in addition to the position at fixing point place, between described end cap shell body 1 and described end cap inner housing 2, arbitrary place is respectively provided with prepsetting gap, is filled with damping fluid in described prepsetting gap.
When the vibration noise within Driving axle housing is delivered to rear end cap, the inside and outside housing of rear end cap all vibrates, the damping fluid being in prepsetting gap produces motion, forming damping oil film, the membrane structure of damping oil film is generated heat by shock damping the energy of damping vibrations and noise, effectively reduces the transmission effect to vibration noise, serve good vibration insulation and noise reduction effect, improve the comfortableness of car load, and this mode cost is relatively low, economical and practical.
In order to ensure that damping oil film is formed uniformly, described end cap shell body 1 and described end cap inner housing 2 are only fixed at circumferential edge so that can have enough, complete damping oil films between the two and form space.It is fixing that described end cap shell body 1 and described end cap inner housing 2 can be selected for welding, riveting, the various ways such as one-body molded processing.
Further, in order to improve the uniformity of the damping oil film of formation, improving the effect of damping noise reduction, the prepsetting gap between the most described end cap shell body 1 with described end cap inner housing 2 is the most equal.
Additionally, on the basis of technique scheme of the present invention, preferably described prepsetting gap is dimensioned to 0.2mm～1.0mm, after the program is implemented on back axle, shown by bench test checking, the noise sound pressure level of more than back axle 2000rpm can be reduced 2dB-3dB, serve the effect of good damping noise reduction.
In specific implementation process, clearance space between described end cap shell body 1 and described end cap inner housing 2 can be the cavity body structure closed, in rear end cap manufacture process, it is pre-filled with in this closed cavity damping fluid, after rear end cap is applied on back axle, damping fluid flows in closed cavity and forms damping oil film.
More preferably, described end cap inner housing 2 is provided with the through hole 3 dynamic for damping oil liquid stream, as shown in Figures 2 and 3, making the clearance space between described end cap shell body 1 and described end cap inner housing 2 is open cavity, and damping fluid can be flowed between the cavity that this cavity and rear axle housing main casing are wrapped to form by described through hole 3.So, in rear end cap manufacture process, it not be used in pre-filled damping fluid in the clearance space between described end cap shell body 1 and described end cap inner housing 2, but directly utilize the gear oil in rear axle housing main casing as damping fluid, simplify the manufacture process of rear end cap.
Further, during use under the excitation of vibration, gear oil can enter in the described prepsetting gap on rear end cap by described through hole 3, it is possible to flows out from described prepsetting gap, enhances the motion of gear oil, the more conducively formation of prepsetting gap internal damping oil film.The inflow of gear oil, outflow, also enhance the flowing heat-sinking capability of fluid, it is to avoid oil liquid temperature is too high and causes performance relatively low, and the most more conducively Aanalysis of Film-damping structure is generated heat by shock damping noise and the vibrations of decaying, and is beneficial to improve further shock insulation noise reduction.
Described through hole 3 is preferably provided at the peak of described end cap inner housing 2, and such fluid is beneficial to flowing formation in gap and damps oil film uniformly after entering described prepsetting gap.
In a preferred embodiment, the circumferential edge of described end cap inner housing 2 is provided with at least two boss 4, as it is shown on figure 3, the thickness of described boss 4 and described prepsetting gap is equal in magnitude, and described boss 4 is fixed with the spot welding of described end cap shell body 1.Described boss 4, while completing the fixing connection of the inside and outside housing of end cap, is more beneficial for ensureing the prepsetting gap between two housings so that the prepsetting gap of formation disclosure satisfy that design requirement, to reach preferable design effect.
In another preferred embodiment of the present invention, described end cap shell body 1 is the most hemispherical, and recessed formation mounting plane 5 at sphere one；Profile after described end cap inner housing 2 moves inward predeterminable range with described end cap shell body 1 overlaps, described predeterminable range is equal with described prepsetting gap, the most described end cap inner housing 2 is consistent completely with the shape of described end cap shell body 1, is so beneficial to ensure that the prepsetting gap between two housings is the most equal.It addition, the flowing that the structure of dome shape is beneficial to damping fluid damps oil film uniformly to be formed.Described mounting plane 5 is provided with installing hole, facilitates the installation of rear end cap to fix.
In this embodiment, the circumferential edge of described end cap inner housing 2 is provided with described boss 4, the described preferred trapezium structure of boss 4, arranges four groups, is uniformly distributed in the circumferential edge of described end cap inner housing 2, as shown in Figure 3.Further, described boss 4 is preferably formed in one with described end cap inner housing 2 structure.Certainly, it is possible to select to be fixed on described end cap inner housing 2 by modes such as welding, rivetings.
In the present invention each embodiment above-mentioned, described end cap shell body 1 is preferably stamping steel plate, and thickness is 2.5mm；Described end cap inner housing 2 preferably also stamping steel plate, thickness is 1.8mm.Compared with by the way of increasing housing rigidity and carrying out shock insulation noise reduction, described end cap shell body 1 and described end cap inner housing 2 may select the steel plate of relatively small thickness, thus can reduce cost, and improve the portability of rear end cap.
The embodiment of the present invention additionally provides a kind of Driving axle housing, including housing body, the described Driving axle housing rear end cap that the embodiment of the present invention provides it is fixed with in described housing body, owing to have employed the rear end cap with isolating affection, optimize vibration transmission the most significantly position in rear axle housing body, hence in so that whole Driving axle housing has possessed more preferable shock insulation noise reduction capability, improve the comfortableness of car load.
The structure of the present invention, feature and action effect are described in detail above according to graphic shown embodiment; the foregoing is only presently preferred embodiments of the present invention; but the present invention is not to limit practical range shown in drawing; every change made according to the conception of the present invention; or it is revised as the Equivalent embodiments of equivalent variations; still without departing from description with diagram contained spiritual time, all should be in protection scope of the present invention.
Claims (10)
1. a Driving axle housing rear end cap, it is characterised in that include end cap shell body and end cap inner shell
Body, described end cap inner housing is only fixed with described end cap shell body at circumferential edge, and is removed fixing point
Outside the position at place, between described end cap shell body and described end cap inner housing, arbitrary place is respectively provided with default
Gap, is filled with damping fluid in described prepsetting gap.
Driving axle housing rear end cap the most according to claim 1, it is characterised in that described default
Gap is the most equal.
Driving axle housing rear end cap the most according to claim 2, it is characterised in that described default
The size in gap is 0.2mm～1.0mm.
Driving axle housing rear end cap the most according to claim 1, it is characterised in that described end cap
Inner housing is provided with the through hole dynamic for damping oil liquid stream.
Driving axle housing rear end cap the most according to claim 4, it is characterised in that described through hole
It is arranged on the peak of described end cap inner housing.
6. according to the Driving axle housing rear end cap according to any one of Claims 1 to 5, it is characterised in that
The circumferential edge of described end cap inner housing is provided with at least two boss, and the thickness of described boss is pre-with described
If gap is equal in magnitude, and described boss is fixed with described end cap shell body spot welding.
7. according to the Driving axle housing rear end cap according to any one of Claims 1 to 5, it is characterised in that
Described end cap shell body is hemispherical, and recessed formation mounting plane at sphere one；Described end cap inner shell
Profile after body moves inward predeterminable range with described end cap shell body overlaps, described predeterminable range and institute
State prepsetting gap equal.
Driving axle housing rear end cap the most according to claim 7, it is characterised in that described end cap
Shell body is stamping steel plate, and thickness is 2.5mm.
Driving axle housing rear end cap the most according to claim 8, it is characterised in that described end cap
Inner housing is stamping steel plate, and thickness is 1.8mm.
10. a Driving axle housing, including housing body, it is characterised in that solid in described housing body
Fixed just like the Driving axle housing rear end cap according to any one of the claims 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610247550.2A CN105856967B (en) | 2016-04-18 | 2016-04-18 | A kind of Driving axle housing and its rear end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610247550.2A CN105856967B (en) | 2016-04-18 | 2016-04-18 | A kind of Driving axle housing and its rear end cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105856967A true CN105856967A (en) | 2016-08-17 |
| CN105856967B CN105856967B (en) | 2018-02-13 |
Family
ID=56632905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610247550.2A Expired - Fee Related CN105856967B (en) | 2016-04-18 | 2016-04-18 | A kind of Driving axle housing and its rear end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105856967B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1043785A (en) * | 1908-12-28 | 1912-11-05 | Napoleon Du Brul | Rear axle for automobiles. |
| GB2155867A (en) * | 1984-01-28 | 1985-10-02 | Leyland Vehicles | Axle casing |
| FR2692524A1 (en) * | 1992-06-01 | 1993-12-24 | Toyoda Automatic Loom Works | Differential casing for axles of industrial vehicles - forged sub assemblies are joined by welding or bolting |
| CN2621954Y (en) * | 2003-05-26 | 2004-06-30 | 中国重型汽车集团有限公司 | Axle rear cover of heavy lorry |
| CN203486013U (en) * | 2013-08-15 | 2014-03-19 | 上海通用汽车有限公司 | Engine front cover reducing noise and automobile |
-
2016
- 2016-04-18 CN CN201610247550.2A patent/CN105856967B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1043785A (en) * | 1908-12-28 | 1912-11-05 | Napoleon Du Brul | Rear axle for automobiles. |
| GB2155867A (en) * | 1984-01-28 | 1985-10-02 | Leyland Vehicles | Axle casing |
| FR2692524A1 (en) * | 1992-06-01 | 1993-12-24 | Toyoda Automatic Loom Works | Differential casing for axles of industrial vehicles - forged sub assemblies are joined by welding or bolting |
| CN2621954Y (en) * | 2003-05-26 | 2004-06-30 | 中国重型汽车集团有限公司 | Axle rear cover of heavy lorry |
| CN203486013U (en) * | 2013-08-15 | 2014-03-19 | 上海通用汽车有限公司 | Engine front cover reducing noise and automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105856967B (en) | 2018-02-13 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: ANHUI JIANGHUAI AUTOMOBILE Co.,Ltd. |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |