CN113819212A - Differential mechanism shell assembly with oil storage space and differential mechanism - Google Patents
Differential mechanism shell assembly with oil storage space and differential mechanism Download PDFInfo
- Publication number
- CN113819212A CN113819212A CN202111127333.7A CN202111127333A CN113819212A CN 113819212 A CN113819212 A CN 113819212A CN 202111127333 A CN202111127333 A CN 202111127333A CN 113819212 A CN113819212 A CN 113819212A
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- China
- Prior art keywords
- shell
- case
- differential
- cover
- storage space
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- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title abstract description 17
- 230000000903 blocking effect Effects 0.000 claims description 21
- 241000239290 Araneae Species 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 53
- 239000012208 gear oil Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention belongs to the technical field of inter-axle differential lubrication, and discloses a differential case assembly with an oil storage space and a differential, wherein the differential case assembly with the oil storage space comprises a case inner case, a case outer case and a case baffle cover, a plurality of oil holes are formed in the case inner case, and the oil holes penetrate through the case inner case along the radial direction of the case inner case; one end of the shell outer shell is provided with an oil receiving cover, the shell inner shell is arranged in the shell outer shell, and the outer wall of the shell inner shell and the inner wall of the shell outer shell are arranged at intervals; the shell body baffle cover is arranged at the other end, far away from the oil receiving cover, of the shell body outer shell and is connected with the shell body inner shell and the shell body outer shell to form an oil storage space. The differential housing assembly is beneficial to reducing the abrasion of the parts of the inter-axle differential caused by poor lubrication when the differential housing assembly runs at low speed. The differential mechanism uses the differential mechanism shell assembly, so that when a vehicle runs at low speed, a transmission component in the differential mechanism can be well lubricated, the service life of the differential mechanism is prolonged, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to the technical field of inter-axle differential lubrication, in particular to a differential shell assembly with an oil storage space and a differential.
Background
The through inter-axle differential of the commercial vehicle has the functions of transmitting torque and realizing intermediate and rear axle differential, is an important transmission mechanism in the double-drive-axle commercial vehicle, has the reliability playing a key role in the service life of a drive axle, and also directly influences the reliability of the whole vehicle. The lubrication of the traditional commercial vehicle through axle inter-axle differential is mainly lubricated in a gear oil splashing mode, an oil storage space is not arranged in the differential, when a vehicle runs at a low speed, the rotating speed of a gear is low, the gear oil cannot be splashed to the inter-axle differential, and the inter-axle differential works in an oil shortage state to cause rapid abrasion of parts of the inter-axle differential. In order to solve the problems, the existing commercial vehicle through inter-axle differential selects to drill holes on the end faces of the cross shafts to form an oil storage space, the oil storage space is small and limited by cross shaft storage, the oil storage amount is limited, and the improvement effect is not obvious.
Disclosure of Invention
The invention aims to provide a differential case assembly with an oil storage space and a differential, which solve the problem of lubrication of the differential between drive axle shafts when a vehicle runs at low speed.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a differential case assembly with an oil storage space, comprising:
the oil hole penetrates through the shell inner shell along the radial direction of the shell inner shell;
the oil receiving cover is arranged at one end of the shell outer shell, the shell inner shell is installed in the shell outer shell, and the outer wall of the shell inner shell and the inner wall of the shell outer shell are arranged at intervals;
and the shell body blocking cover is arranged at the other end, far away from the oil receiving cover, of the shell body outer shell and is connected with the shell body inner shell and the shell body outer shell so as to form an oil storage space.
Optionally, the oil receiving cover is integrally formed with the housing shell.
Optionally, a first limiting step is arranged at the joint of the shell outer shell and the oil receiving cover, and one end of the shell inner shell is detachably connected with the first limiting step.
Optionally, a plurality of first mounting holes are formed in the first limiting step, and a first fastener penetrates through the first mounting holes to be connected with the housing inner shell.
Optionally, the other end of the inner shell of the shell, which is far away from the first limiting step, is provided with a second limiting step, one end of the shell blocking cover is detachably connected with the second limiting step, and the other end of the shell blocking cover is abutted to the shell of the shell.
Optionally, the housing cover is provided with a plurality of second mounting holes, and a second fastener passes through the second mounting holes to be connected with the housing inner shell.
Optionally, one end of the housing blocking cover is provided with a blocking cover inner edge, and the blocking cover inner edge is abutted to the horizontal plane of the second limiting step.
Optionally, the other end of the housing blocking cover is provided with a blocking cover outer edge, and the blocking cover outer edge is abutted to the inner wall of the housing shell.
In another aspect, the present invention provides a differential including the differential case assembly with an oil storage space as described above.
Optionally, the differential further comprises a spider disposed within the housing inner shell and a planetary gear rotatably mounted on the spider.
The invention has the beneficial effects that: the differential mechanism shell assembly comprises an inner shell, an outer shell and a shell baffle cover, wherein the inner shell, the outer shell and the shell baffle cover of the shell are closed to form an oil storage space; when the vehicle runs at low speed, gear oil in the oil storage space flows out from the oil storage space through the oil hole to lubricate the transmission part of the interaxial differential mechanism, so that the problem of lubrication of the interaxial differential mechanism of the drive axle during low-speed running of the vehicle is solved, the abrasion of the interaxial differential mechanism part caused by poor lubrication is favorably reduced, and the service life of the drive axle is further prolonged.
The differential mechanism of the invention uses the differential mechanism shell assembly, so that when a vehicle runs at low speed, driving components such as a cross shaft, a planetary gear and the like in the differential mechanism can be well lubricated, the service life of the differential mechanism is prolonged, and the maintenance cost is reduced.
Drawings
FIG. 1 is a cross-sectional view of a differential housing assembly with an oil storage space according to an embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
FIG. 3 is a schematic structural diagram of an inner housing of the housing according to the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a housing shell according to an embodiment of the present invention;
FIG. 5 is a sectional view of the housing shell according to an embodiment of the present invention;
FIG. 6 is an enlarged partial schematic view at B in FIG. 5;
FIG. 7 is a schematic structural view of a housing shield according to an embodiment of the present invention;
FIG. 8 is a sectional view of the structure of the housing shield according to the embodiment of the present invention;
FIG. 9 is an enlarged partial schematic view at C of FIG. 8;
fig. 10 is a structural sectional view of a differential according to an embodiment of the present invention.
In the figure:
1. a shell inner shell; 11. an oil hole; 2. a housing shell; 3. an oil receiving cover; 4. a housing cover; 41. a second mounting hole; 42. the inner edge of the blocking cover; 43. the outer edge of the blocking cover; 5. a first limit step; 51. a first mounting hole; 6. a second limit step; 7. a cross shaft; 8. a planetary gear.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1-9, the present invention provides a differential case assembly with an oil storage space, which includes a case inner case 1, a case outer case 2 and a case cover 4, wherein the case inner case 1 is provided with a plurality of oil holes 11, and the oil holes 11 penetrate through the case inner case 1 along the radial direction of the case inner case 1; one end of the shell outer shell 2 is provided with an oil receiving cover 3, the shell inner shell 1 is arranged in the shell outer shell 2, and the outer wall of the shell inner shell 1 and the inner wall of the shell outer shell 2 are arranged at intervals; the shell baffle cover 4 is arranged at the other end of the shell outer shell 2 far away from the oil receiving cover 3 and is connected with the shell inner shell 1 and the shell outer shell 2 to form an oil storage space.
As shown in fig. 1, the oil receiving cover 3 and the housing outer shell 2 are integrally formed, and can be directly formed by punching, the housing inner shell 1 is installed in the housing outer shell 2, the radial dimension of the housing inner shell 1 is smaller than that of the housing outer shell 2, so that a gap exists between the housing inner shell 1 and the housing outer shell 2, and two ends of the housing blocking cover 4 are respectively connected with the housing inner shell 1 and the housing outer shell 2, thereby forming a closed oil storage space. When the vehicle runs at a high speed, splashed gear oil enters the shell inner shell 1 through the oil receiving cover 3, enters the oil storage space through the oil hole 11 on the shell inner shell 1 and is stored in the oil storage space; when the vehicle runs at low speed, gear oil in the oil storage space flows out of the oil storage space through the oil hole 11 to lubricate transmission parts of the inter-axle differential. It can be understood that the arrangement of the oil holes 11 needs to be distributed within a certain range to ensure that the gear oil can flow in or out through the oil holes 11, the specific arrangement position of the oil holes 11 is determined according to the actual situation, and the figure is only one arrangement mode of the oil holes 11 and is not limited to the embodiment. In addition, the hole type of the oil hole 11 can also be selected according to the design condition, and the hole type of the oil hole 11 in the embodiment is circular.
Optionally, a first limiting step 5 is arranged at the joint of the housing outer shell 2 and the oil receiving cover 3, and one end of the housing inner shell 1 is detachably connected with the first limiting step 5. As shown in fig. 6, a first limiting step 5 is arranged at the joint of the housing outer shell 2 and the oil receiving cover 3, a plurality of first mounting holes 51 are formed in the first limiting step 5 along the circumferential direction, and the housing inner shell 1 and the first limiting step 5 are detachably connected through a first fastener and the first mounting holes 51, so that the housing inner shell 1 is conveniently detached. In addition, other reliable connection modes, such as interference press-fitting, local welding, etc., may also be adopted, which is not limited to this embodiment.
Optionally, the other end of the inner shell 1 of the housing, which is far away from the first limit step 5, is provided with a second limit step 6, one end of the housing blocking cover 4 is detachably connected with the second limit step 6, and the other end of the housing blocking cover 4 is abutted to the housing outer shell 2. As shown in fig. 2, the other end of the housing inner shell 1 is provided with a second limit step 6, the housing cover 4 is detachably connected with the second limit step 6, and the housing cover 4 is connected with the housing outer shell 2 in an abutting manner. Specifically, the housing blocking cover 4 is provided with a plurality of second mounting holes 41, and the second fastening member passes through the second mounting holes 41 to be connected with the housing inner shell 1. In this embodiment, the casing keeps off lid 4 and the spacing step 6 of second can dismantle through the second connecting piece and be connected, conveniently changes the maintenance to casing inner shell 1 and casing fender lid 4, and the inseparable butt is sealed between casing fender lid 4 and casing shell 2, prevents that the gear oil of the interior storage of oil storage space from flowing out.
Optionally, one end of the housing cover 4 is provided with a cover inner edge 42, and the cover inner edge 42 abuts against the horizontal surface of the second limit step 6. As shown in fig. 9, in this embodiment, the inner edge 42 of the blocking cover abuts against the horizontal surface of the second limiting step 6, and the inner edge 42 of the blocking cover can enhance the sealing performance between the housing blocking cover 4 and the second limiting step 6, so as to prevent the gear oil in the oil storage space from leaking out of the joint between the housing blocking cover 4 and the second limiting step 6.
Optionally, the other end of the housing cover 4 is provided with a cover outer edge 43, and the cover outer edge 43 abuts against the inner wall of the housing shell 2. As shown in fig. 9, in the present embodiment, the cover stop outer edge 43 can enhance the sealing performance between the housing cover stop 4 and the housing shell 2, and prevent the gear oil in the oil storage space from leaking out from the joint between the housing cover stop 4 and the housing shell 2.
In addition, the invention also provides a differential, as shown in fig. 10, comprising the differential shell assembly with the oil storage space. Specifically, the universal joint pin 7 and the planetary gears 8 are further included, in the embodiment, the universal joint pin 7 and the planetary gears 8 are existing components, four planetary gears 8 are arranged, the four planetary gears 8 are respectively in rotary connection with the universal joint pin 7, and the universal joint pin 7 and the planetary gears 8 are arranged in the shell inner 1. When the vehicle runs fast, the differential can store gear oil splashed into the differential when the vehicle runs fast into the oil storage space; when the vehicle runs at low speed, the gear oil in the oil storage space flows into the shell inner shell 1 through the oil hole 11 again to lubricate the transmission parts such as the cross shaft 7, the planetary gear 8 and the like in the shell inner shell 1, so that the transmission components in the differential can be well lubricated when the vehicle runs at low speed, the service life of the differential is prolonged, and the maintenance cost is reduced.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A differential housing assembly with an oil storage space, comprising:
the oil inlet structure comprises a shell inner shell (1), wherein a plurality of oil holes (11) are formed in the shell inner shell (1), and the oil holes (11) penetrate through the shell inner shell (1) along the radial direction of the shell inner shell (1);
the oil receiving cover (3) is arranged at one end of the shell outer shell (2), the shell inner shell (1) is installed in the shell outer shell (2), and the outer wall of the shell inner shell (1) and the inner wall of the shell outer shell (2) are arranged at intervals;
the oil receiving cover comprises a shell blocking cover (4), wherein the shell blocking cover (4) is installed on the shell outer shell (2) and is far away from the other end of the oil receiving cover (3) to be connected with the shell inner shell (1) and the shell outer shell (2) so as to form an oil storage space.
2. Differential case assembly with oil storage space according to claim 1, characterized in that the oil receiving cover (3) is integrally formed with the case housing (2).
3. The differential case assembly with the oil storage space according to claim 1, wherein a first limit step (5) is arranged at the joint of the case outer shell (2) and the oil receiving cover (3), and one end of the case inner shell (1) is detachably connected with the first limit step (5).
4. The differential case assembly with the oil storage space of claim 3, wherein the first limiting step (5) is provided with a plurality of first mounting holes (51), and a first fastening member passes through the first mounting holes (51) to be connected with the inner case (1).
5. The differential case assembly with the oil storage space according to claim 4, wherein a second limit step (6) is provided at the other end of the case inner case (1) far from the first limit step (5), one end of the case cover (4) is detachably connected with the second limit step (6), and the other end of the case cover (4) is abutted against the case outer case (2).
6. The differential case assembly with the oil storage space of claim 5, wherein the case shield cover (4) is provided with a plurality of second mounting holes (41), and a second fastening member passes through the second mounting holes (41) to be connected with the inner case (1).
7. Differential housing assembly with oil storage space according to claim 5, characterized in that one end of the housing cover (4) is provided with a cover inner edge (42), and the cover inner edge (42) abuts against the horizontal surface of the second limit step (6).
8. Differential case assembly with oil storage space according to claim 5, characterized in that the other end of the case cover (4) is provided with a cover outer rim (43), and the cover outer rim (43) abuts against the inner wall of the case housing (2).
9. A differential comprising the differential case assembly with an oil storage space of any one of claims 1 to 8.
10. The differential of claim 9, further comprising a spider (7) and a planetary gear (8), said spider (7) being disposed within said housing inner casing (1), said planetary gear (8) being rotatably mounted on said spider (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111127333.7A CN113819212A (en) | 2021-09-26 | 2021-09-26 | Differential mechanism shell assembly with oil storage space and differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111127333.7A CN113819212A (en) | 2021-09-26 | 2021-09-26 | Differential mechanism shell assembly with oil storage space and differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113819212A true CN113819212A (en) | 2021-12-21 |
Family
ID=78921151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111127333.7A Pending CN113819212A (en) | 2021-09-26 | 2021-09-26 | Differential mechanism shell assembly with oil storage space and differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113819212A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07253148A (en) * | 1994-03-14 | 1995-10-03 | Hino Motors Ltd | Lubricating device for inter-axle differential |
| JPH10138777A (en) * | 1996-11-13 | 1998-05-26 | Hino Motors Ltd | Lubricating device for inter-axle differential gear |
| US20090176614A1 (en) * | 2008-01-04 | 2009-07-09 | Hilker Gregory J | Differential assembly with oil deflector shield |
| CN203335772U (en) * | 2012-12-31 | 2013-12-11 | 陕西汉德车桥有限公司 | Differential mechanism for drive axle |
| CN110529578A (en) * | 2019-08-13 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of differential assembly |
-
2021
- 2021-09-26 CN CN202111127333.7A patent/CN113819212A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07253148A (en) * | 1994-03-14 | 1995-10-03 | Hino Motors Ltd | Lubricating device for inter-axle differential |
| JPH10138777A (en) * | 1996-11-13 | 1998-05-26 | Hino Motors Ltd | Lubricating device for inter-axle differential gear |
| US20090176614A1 (en) * | 2008-01-04 | 2009-07-09 | Hilker Gregory J | Differential assembly with oil deflector shield |
| CN203335772U (en) * | 2012-12-31 | 2013-12-11 | 陕西汉德车桥有限公司 | Differential mechanism for drive axle |
| CN110529578A (en) * | 2019-08-13 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of differential assembly |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20211221 |