CN103511585B - A kind of differential casing - Google Patents
A kind of differential casing Download PDFInfo
- Publication number
- CN103511585B CN103511585B CN201210216219.6A CN201210216219A CN103511585B CN 103511585 B CN103511585 B CN 103511585B CN 201210216219 A CN201210216219 A CN 201210216219A CN 103511585 B CN103511585 B CN 103511585B
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- China
- Prior art keywords
- differential casing
- cavity
- connecting rod
- differential
- cover plate
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
Differential casing disclosed by the invention, including body, it is arranged at described body one end for placing the cavity of differential mechanism and covering at the cover plate outside described cavity, described body is column construction, described cavity cross section is drum organization, and said two planetary gear lays respectively in two planes in described cavity.Owing to body profile is column construction, and by cavity design being become drum type structure, so that the thickness at two planes in cavity is relatively thick, by, in two planes that are arranged in cavity by two planetary gears, improve the differential casing ability to bear to planetary gear centrifugal force, it is ensured that the steadiness of differential casing, only add thick shell arranging planetary position, save the usage amount of material, while reducing volume, decrease the waste of material, reduce use cost.
Description
Technical field
The present invention relates to a kind of housing, be specifically related to a kind of differential casing.
Background technology
Automobile differential is the main part of drive axle, and its effect is exactly while both sides semiaxis transmission power, it is allowed to both sides semiaxis rotates with different rotating speeds, meets two sidecar wheels and makees Unequal distance traveling with the form of pure rolling as far as possible, reduces the friction of tire and ground.
Differential mechanism mainly includes two planetary gears and central gear, drives planetary gear rotation by travelling gear, is transmitted with semiaxis by central gear by power.
The sleeve that the housing of traditional differential mechanism is the most cylindrical, in order to ensure the steadiness of housing and there is enough differential mechanism placement spaces, the volume of general housing is bigger, and the wall thickness of housing is thicker, to ensure the holding capacity of the centrifugal action produced when planetary gear is run up by housing self, but thicken housing wall thickness and on the one hand take up room relatively big, on the other hand need to expend more material, relatively costly.
Therefore, a kind of small volume, use material relatively to save, lower-cost housing urgently occurs.
Summary of the invention
It is the ability ensureing its steadiness with holding capacity for solving traditional differential casing, thus housing wall is thickeied, volume increases, cause the problems such as production cost increase, the invention discloses a kind of differential casing, to reach to reduce the volume of differential casing, save housing and use material, reduce the purpose of production cost.
For reaching above-mentioned purpose, technical scheme is as follows:
A kind of differential casing, for placing differential mechanism, described differential mechanism includes symmetrically arranged central gear and planetary gear, described differential casing includes body, is arranged at described body one end for placing the cavity of described differential mechanism and covering at the cover plate outside described cavity, described body is column construction, described cavity cross section is drum organization, and said two planetary gear lays respectively in two planes in described cavity.
Preferably, the described body other end is further fixedly arranged on travelling gear, described travelling gear and described body by integral forming.
Preferably, described planetary gear being provided with connecting rod, described connecting rod is connected with described body, and described planetary gear can rotation.
Preferably, described body being provided with through hole, described connecting rod stretches in described through hole.
Preferably, described body one end is provided with the fixing device for fixing described cover plate.
Preferably, described fixing device includes bolt and is positioned on described body the screwed hole matched with described bolt.
Preferably, it is provided with, in described one group of symmetrically arranged screwed hole, the aperture passed through mutually with described through hole.
Preferably, the connector for axially positioning described connecting rod it is provided with in described aperture.
Preferably, described connector is bearing pin or steel ball.
Preferably, described connecting rod is provided with the groove matched with described connector or at least one groove.
Differential casing disclosed by the invention, including body, it is arranged at described body one end for placing the cavity of differential mechanism and covering at the cover plate outside described cavity, described body is column construction, described cavity cross section is drum organization, and said two planetary gear lays respectively in two planes in described cavity.Owing to body profile is column construction, and by cavity design being become drum type structure, so that the thickness at two planes in cavity is relatively thick, by, in two planes that are arranged in cavity by two planetary gears, improve the differential casing ability to bear to planetary gear centrifugal force, it is ensured that the steadiness of differential casing, only add thick shell arranging planetary position, save the usage amount of material, while reducing volume, decrease the waste of material, reduce use cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below.It should be evident that the accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the internal structure schematic diagram of a kind of differential casing disclosed by the invention；
Fig. 2 is the sectional view of a kind of differential casing embodiment 1 disclosed by the invention；
Fig. 3 is the sectional view of a kind of differential casing embodiment 2 disclosed by the invention；
Fig. 4 is the sectional view of a kind of differential casing embodiment 4 disclosed by the invention.
Numeral in figure or the title of the corresponding component representated by letter:
1, body 2, cavity 3, cover plate 4, travelling gear 5, planetary gear 6, central gear 7, connecting rod 8, through hole 9, screwed hole 10, aperture 11, groove 12, crimping.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
The invention discloses a kind of differential casing, to reach to reduce the volume of housing, save housing and use material, reduce the purpose of production cost.
As shown in Figure 1, 2, a kind of differential casing, for placing differential mechanism, differential mechanism includes symmetrically arranged central gear 6 and planetary gear 5, differential casing includes body 1, is arranged at body 1 one end for placing the cavity 2 of differential mechanism and covering at the cover plate 3 outside cavity 2, body 1 is column construction, and cavity 2 cross section is drum organization, and two planetary gears lay respectively in two planes in cavity 2.Owing to body profile is column construction, and by cavity design being become drum type structure, so that the thickness at two planes in cavity is relatively thick, by in two planes that two planetary gears are arranged in cavity, improve the differential casing ability to bear to planetary gear centrifugal force, ensure that the steadiness of differential casing, only add thick shell arranging planetary position, other position thickness of shell can be the most thinning, in guarantee cavity on the basis of space, reduce taking up room of differential casing, save the usage amount of material, the waste of material is decreased while reducing volume, reduce use cost.
Body 1 other end is further fixedly arranged on travelling gear 4, and travelling gear 4 is one-body molded with body 1.By by travelling gear, integrally forging molding is on body, so when drive mechanism (not shown) band nutating gear 4 operates, active force can be directly passed to body by travelling gear, it is ensured that the stability of power transmission.Save intermediate transfer mechanism simultaneously, reduce production and application cost.Simultaneously when forging molding body by travelling gear together forging molding, save the assembling process of body and travelling gear later stage, reduce the amount of labour, improve work production efficiency.
Being provided with connecting rod 7 on planetary gear 5, connecting rod 7 is connected with body 1, and planetary gear 5 can carry out rotation in connecting rod 7.While travelling gear 4 drives body 1 to rotate, planetary gear 5 is wound with central gear 6 with body 1 and operates, and carries out rotation, by power by central gear transmission output.
Body 1 one end is provided with the fixing device for securing cover plate.Fixing device includes bolt (not shown) and is positioned on body 1 screwed hole 9 matched with bolt, as it is shown in figure 1, screwed hole is uniform four, and bonnet upper cover plate 3 in central gear and planetary gear are installed on cavity 2, by bolt, cover plate is fixed.Wherein the quantity of screwed hole can be also 2,3,5 or multiple etc., and particular number depends on the circumstances, and does not limits at this.
Being provided with through hole 8 on body 1, connecting rod 7 stretches in through hole 8.It is provided with, in one group of symmetrically arranged screwed hole 9, the aperture 10 passed through with through hole 8 phase.Be provided with the connector (not shown) for axial positioning link bar 7 in aperture 10, connecting rod 7 be provided with the groove 11 matched with connector, by the clamping effect of connector and groove by pitman shaft to and circumference be fixed.The quantity of its further groove can be 1,2 or equally distributed multiple, it is simple to connector and any one groove clamping.
Connector can be bearing pin or steel ball etc., does not limits.
The process and assemble mode of the present invention is as follows:
One, first by differential casing forging molding, and at one end forging molding travelling gear 4 of body 1；
Two, one of them central gear is arranged in cavity 2；
Three, two planetary gears are installed in cavity 2 successively, and by connector, planetary connecting rod 7 is fixed；
Four, later central gear is installed in cavity 2；
Five, cover cover plate 3, by bolt, cover plate 3 is fixed on body 1.
Embodiment 2
As it is shown on figure 3, remaining is same as in Example 1, difference is, crimping 12 it is provided with on cover plate 3, be provided with screwed hole on crimping 12, screwed hole be at least one or equally distributed multiple, coordinate with screwed hole by arranging bolt cover plate be locked on body 1.
Or by offering screwed hole on body outer wall, by using bolt to coordinate securing cover plate with this screwed hole.
When differential mechanism high-speed rotation, cover plate is relatively big by the operating on centrifugal force of outside central gear, and once between cover plate and body, fixed effect is bad, may result in the phenomenon that cover plate drops, there is dislocation in the structure causing differential mechanism, affects transmission effect, and causes potential safety hazard.The cover plate adopted the structure so that the Impact direction of cover plate is vertical with fixed-direction, increases the centrifugal force resistant ability of cover plate, it is ensured that use safety.
Embodiment 3
Remaining is same as in Example 1, difference is, the groove (not shown) matched with connector it is provided with in connecting rod 7, by the clamping effect of connector and groove by pitman shaft to being fixed, and connecting rod can change the most accordingly with planetary rotation, during the problem that the impact such as clamping rotates when occurring relatively rotating between planetary gear and connecting rod, planetary gear can drive connecting rod to rotate together, avoid the occurrence of stuck phenomenon, the damage of anti-locking apparatus, reduce use cost.
Embodiment 4
As shown in Figure 4, remaining is same as in Example 1, and difference is, two planetary gears share a connecting rod, and planetary gear is sheathed in connecting rod.
The process and assemble mode of the present embodiment is as follows:
One, first by differential casing forging molding, and at one end forging molding travelling gear 4 of body 1；
Two, one of them central gear is arranged in cavity 2；
Three, installing in cavity 2 successively by two planetary gears, two planetary gears are concatenated by connecting rod by through hole, and connecting rod 7 are fixed by connector；
Four, later central gear is installed in cavity 2；
Five, cover cover plate 3, by bolt, cover plate 3 is fixed on body 1.
By making two planetary gears share a connecting rod, improve stability during transmission, and easy to assembly.
Differential casing disclosed by the invention, including body, it is arranged at described body one end for placing the cavity of differential mechanism and covering at the cover plate outside described cavity, described body is column construction, described cavity cross section is drum organization, and said two planetary gear lays respectively in two planes in described cavity.Owing to body profile is column construction, and by cavity design being become drum type structure, so that the thickness at two planes in cavity is relatively thick, by, in two planes that are arranged in cavity by two planetary gears, improve the differential casing ability to bear to planetary gear centrifugal force, it is ensured that the steadiness of differential casing, only add thick shell arranging planetary position, save the usage amount of material, while reducing volume, decrease the waste of material, reduce use cost.
It is more than the description to the embodiment of the present invention, by the described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or use the present invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a differential casing, for placing differential mechanism, described differential mechanism includes symmetrically arranged central gear and planetary gear, it is characterized in that, described differential casing includes body, is arranged at described body one end for placing the cavity of described differential mechanism and covering at the cover plate outside described cavity, described body is column construction, and described cavity cross section is drum organization, and two described planetary gears lay respectively in two planes in described cavity；The process and assemble mode of described differential casing is as follows:
One, first by described differential casing forging molding, and at one end forging molding travelling gear of described body；
Two, one of them described central gear is arranged in described cavity；
Three, two described planetary gears are installed in described cavity successively, and by connector, described planetary connecting rod is fixed；
Four, central gear described in later is installed in described cavity；
Five, cover described cover plate, by bolt, described cover plate is fixed on body.
Differential casing the most according to claim 1, it is characterised in that the described body other end is further fixedly arranged on travelling gear, described travelling gear and described body by integral forming.
Differential casing the most according to claim 2, it is characterised in that be provided with connecting rod on described planetary gear, described connecting rod is connected with described body, and described planetary gear can rotation.
Differential casing the most according to claim 3, it is characterised in that be provided with through hole on described body, described connecting rod stretches in described through hole.
Differential casing the most according to claim 4, it is characterised in that described body one end is provided with the fixing device for fixing described cover plate.
Differential casing the most according to claim 5, it is characterised in that described fixing device includes bolt and is positioned on described body the screwed hole matched with described bolt.
Differential casing the most according to claim 6, it is characterised in that be provided with, in one group of symmetrically arranged described screwed hole, the aperture passed through mutually with described through hole.
Differential casing the most according to claim 7, it is characterised in that be provided with the connector for axially positioning described connecting rod in described aperture.
Differential casing the most according to claim 8, it is characterised in that described connector is bearing pin or steel ball.
Differential casing the most according to claim 9, it is characterised in that be provided with the groove matched with described connector or at least one groove in described connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216219.6A CN103511585B (en) | 2012-06-28 | 2012-06-28 | A kind of differential casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216219.6A CN103511585B (en) | 2012-06-28 | 2012-06-28 | A kind of differential casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103511585A CN103511585A (en) | 2014-01-15 |
| CN103511585B true CN103511585B (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210216219.6A Active CN103511585B (en) | 2012-06-28 | 2012-06-28 | A kind of differential casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511585B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930424A (en) * | 1974-10-29 | 1976-01-06 | Aspro, Inc. | Multi-shell limited slip differential |
| CN2364273Y (en) * | 1999-03-03 | 2000-02-16 | 高松泉 | Casing of differential mechanism |
| CN101688595A (en) * | 2007-05-08 | 2010-03-31 | 索纳Blw精密锻造有限责任公司 | Differential of lightweight construction for motor vehicles |
| CN201696580U (en) * | 2010-04-26 | 2011-01-05 | 田希亮 | Tractor differential |
| CN202707991U (en) * | 2012-06-28 | 2013-01-30 | 张家港市九鼎机械有限公司 | Shell body of differential |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6139462A (en) * | 1998-08-27 | 2000-10-31 | American Axle & Manufacturing, Inc. | Differential with laser hardened case |
| DE602004026237D1 (en) * | 2003-03-19 | 2010-05-12 | Nissan Motor | Differential and housing for differential |
-
2012
- 2012-06-28 CN CN201210216219.6A patent/CN103511585B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930424A (en) * | 1974-10-29 | 1976-01-06 | Aspro, Inc. | Multi-shell limited slip differential |
| CN2364273Y (en) * | 1999-03-03 | 2000-02-16 | 高松泉 | Casing of differential mechanism |
| CN101688595A (en) * | 2007-05-08 | 2010-03-31 | 索纳Blw精密锻造有限责任公司 | Differential of lightweight construction for motor vehicles |
| CN201696580U (en) * | 2010-04-26 | 2011-01-05 | 田希亮 | Tractor differential |
| CN202707991U (en) * | 2012-06-28 | 2013-01-30 | 张家港市九鼎机械有限公司 | Shell body of differential |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103511585A (en) | 2014-01-15 |
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Effective date of registration: 20181218 Address after: 400054 Democracy Village, Huaxi Town, Banan District, Chongqing Patentee after: CHONGQING SHENGBO TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 215000 Industrial Zone, Daxin Town, Zhangjiagang City, Suzhou, Jiangsu Patentee before: Zhangjiagang Jiuding Machinery Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200921 Address after: 201799 room 510-523, Lai Gang Road, Qingpu District, Shanghai, 510-523. Patentee after: Weimar Automobile Technology Group Co.,Ltd. Address before: 400054 democratic village, Huaxi Town, Banan District, Chongqing Patentee before: CHONGQING SHENGBO TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right |