CN102678899B - Differential shell - Google Patents
Differential shell Download PDFInfo
- Publication number
- CN102678899B CN102678899B CN201210162553.8A CN201210162553A CN102678899B CN 102678899 B CN102678899 B CN 102678899B CN 201210162553 A CN201210162553 A CN 201210162553A CN 102678899 B CN102678899 B CN 102678899B
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- Prior art keywords
- hydraulic fluid
- fluid port
- housing
- differential casing
- differential
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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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- 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
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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
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0483—Axle or inter-axle differentials
Abstract
The invention discloses a differential shell, comprising a first shell (10) and a second shell (20) fixedly connected with each other. A first oil port (11) arranged on the first shell penetrates from the outer periphery to the inner periphery along the periphery of the first shell; the extension direction of the first oil port deviates from the central line of the first shell; a second oil port (21) arranged on the second shell penetrates from the outer periphery to the inner periphery along the periphery of the second shell; the extension direction of the second oil port deviates from the central line of the second shell; and one of the first and second oil ports is an oil outlet and the other one is an oil inlet. By improving the lubricating oil port, lubricating oil can be forcibly fed in or discharged from the differential shell, thereby enhancing circulation of the lubricating oil in the differential shell, reducing abrasion of parts in the differential shell and prolonging the service life of the differential.
Description
Technical field
The present invention relates to the ransaxle field of vehicle, particularly, relate to a kind of differential casing being applicable to ransaxle.
Background technique
As everyone knows, when automobile turning or when travelling on uneven road surface, differential mechanism can allow left and right wheels to rotate with different rotating speeds, makes wheel make pure rolling on the ground.Wherein, planetary pinion and differential gear are all engage in differential casing, and in order to reduce wear, in differential casing, injecting lubricant oil to lubricate the component of described differential casing inside is conventional mode.
As shown in FIG. 1A and 1B, be a kind of differential casing of the prior art.Can find out, the left and right housing of differential mechanism arranges oil inlet hole 1 and the oil outlet 2 of charging-up lubricant oil respectively, and oil inlet hole 1 and the bearing of trend of oil outlet 2 on differential casing and the rotation axis parallel of differential casing, when differential mechanism rotating, be difficult to lubricant oil to send in differential casing by oil inlet hole on the one hand, easily cause lacking lubrication between the planetary gear train of differential mechanism inside and liner.On the other hand, lubricant oil is difficult to discharge from oil outlet, causes lubricant oil can not Efficient Cycle in differential casing, if lubricant oil is overstand in differential casing, along with the rotation of differential mechanism, the temperature of lubricant oil raises, and will affect the greasy property of lubricant oil.Above-mentioned two situations all will cause gear teeth face to destroy and liner ablation, thus reduce the operating life of differential mechanism.For this reason, when using this type of differential carrier, usually can increase lubricating pump on the casing of retarder, pressure lubrication oil is sent into or is discharged differential casing.But due to the increase of lubricating pump, make the structure of ransaxle become complicated, and improve cost of production.
As shown in Figure 2 A and 2 B, for another kind of differential casing of the prior art, can find out, similar to Figure 1A with Figure 1B of the oil inlet hole 1 that this differential casing is arranged and oil outlet 2, is provided with foliated web 3 unlike it on differential casing.When differential carrier rotates, web 3 rotates thereupon, lubricant oil can be stirred in differential casing.But the web 3 due to differential casing needs to occupy larger space, when the shell space of ransaxle is less, web 3 is not easy to arrange.And differential mechanism work transmitting torque is comparatively large, need to adopt Forging Technology to manufacture differential casing, after increase web 3, the structure relative complex of differential mechanism, causes the blank complex forming technology of differential casing.
Summary of the invention
The object of this invention is to provide a kind of differential casing, this differential casing can be sent into or discharge by pressure lubrication oil.
To achieve these goals, the invention provides a kind of differential casing, this differential casing comprises the first housing and the second housing that are fixedly connected with, wherein, the first hydraulic fluid port that described first housing is arranged runs through along the circumference of described first housing from outer circumferential face and extends to inner peripheral surface, and the bearing of trend of described first hydraulic fluid port deviates from the center line of described first housing; The second hydraulic fluid port that described second housing is arranged runs through along the circumference of described second housing from outer circumferential face and extends to inner peripheral surface, and the bearing of trend of described second hydraulic fluid port deviates from the center line of described second housing; And the one in described first hydraulic fluid port and described second hydraulic fluid port is oil outlet, and another one is filler opening.
Preferably, the bearing of trend of described first hydraulic fluid port and described second hydraulic fluid port respectively with the central axis of described differential casing.
Preferably, described first hydraulic fluid port and described second hydraulic fluid port are grooved mouth, and described first hydraulic fluid port and described second hydraulic fluid port are spaced apart from each other in the circumferential.
Preferably, the sidewall forming described first hydraulic fluid port is parallel to each other, and the sidewall forming described second hydraulic fluid port is parallel to each other.
Preferably, the center line of the sidewall and the first housing that form the first hydraulic fluid port is parallel to each other, and forms the sidewall of described second hydraulic fluid port and the centerline parallel of the second housing.
Preferably, described first hydraulic fluid port and described second hydraulic fluid port run through the first corresponding housing and the end face of the second housing respectively.
Preferably, described first hydraulic fluid port and described second hydraulic fluid port are crisscross arranged equably along the circumference of differential casing.
Preferably, on described first housing and described second housing, be provided with half slot accordingly respectively, described half slot is evenly arranged along the circumference of described differential casing.
Preferably, described first hydraulic fluid port and described second hydraulic fluid port are circumferentially gone up symmetrical relative to adjacent half slot.
Preferably, be provided with attachment hole accordingly respectively on described first housing and described second housing, described attachment hole extends, for being fixedly connected with described second housing by described first housing along the axis of described first housing and described second housing.
The present invention is by after improving the hydraulic fluid port of lubricant oil, successfully can send into and discharge differential casing by pressure lubrication oil, strengthen the circulation of lubricant oil in differential casing, decrease the wearing and tearing in differential casing between all parts, improve the working life of differential mechanism.And the present invention does not need to use extra lubricant oil pumping installations, does not need to increase other accessories on differential casing yet, thus have structure simple, be convenient to the advantages such as manufacture, thus reduce the cost of production of differential mechanism.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Figure 1A and Figure 1B is left view and the cross-sectional schematic of a kind of differential casing in prior art respectively;
Fig. 2 A and Fig. 2 B is left view and the cross-sectional schematic of another kind of differential casing in prior art respectively;
Fig. 3 is the structural representation of a mode of execution of differential casing of the present invention;
Fig. 4 A and Fig. 4 B is stereogram and the left view of the first housing in the differential casing shown in Fig. 3 respectively;
Fig. 5 A and Fig. 5 B is stereogram and the right elevation of the second housing in the differential casing shown in Fig. 3 respectively.
Description of reference numerals
1 oil inlet hole 2 oil outlet
3 web 10 first housings
11 first hydraulic fluid port 12 High lateral wall
13 low sidewall 20 second housings
21 second hydraulic fluid port 31 half slots
32 attachment hole 211,212 first intersection points
213,214 second intersection points
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the word " first " of use, " second ", etc. be used for distinguishing different parts, but these parts are not limited to the annotation of above-mentioned word.In addition, as known in the art, differential casing is solid of rotation, and " center line " is the spin axis of differential casing.
See Fig. 3 to Fig. 5 B, differential casing of the present invention comprises the first housing 10 and the second housing 20 be fixedly connected with, and both have identical sense of rotation down after being fixedly connected with in working order.The part structure roughly ringwise that engages with the second housing 20 of first housing 10 as seen from the figure.The first hydraulic fluid port 11 that first housing 10 is arranged runs through along the circumference of the first housing 10 from outer circumferential face and extends to inner peripheral surface, and the bearing of trend of the first hydraulic fluid port 11 deviates from the center line of the first housing 10; The second hydraulic fluid port 21 that second housing 20 is arranged runs through along the circumference of the second housing 20 from outer circumferential face and extends to inner peripheral surface, and the bearing of trend of the second hydraulic fluid port 21 deviates from the center line of the second housing 20.Wherein, according to the difference of the sense of rotation of differential casing, the one in the first hydraulic fluid port 11 and the second hydraulic fluid port 21 is oil outlet, and another one is filler opening.In other words, the first hydraulic fluid port 11 can be made as filler opening, the second hydraulic fluid port 21 as oil outlet, or makes the first hydraulic fluid port 11 as oil outlet, and the second hydraulic fluid port 21 is as filler opening.
In said structure, " departing from " points to for the center line of the first housing 10 or the second housing 20 relative to the bearing of trend of the first hydraulic fluid port 11 or the second hydraulic fluid port 21.Namely the center line that the bearing of trend of the first hydraulic fluid port 11 deviates from the first housing 10 refers to that the bearing of trend of the first hydraulic fluid port 11 does not point to the center line of the first housing 10, equally, the center line that the bearing of trend of the second hydraulic fluid port 21 deviates from the second housing 20 refers to that the bearing of trend of the second hydraulic fluid port 21 does not point to the center line of the second housing 20.In order to the implication of the bearing of trend disalignment of described first hydraulic fluid port 11 and the second hydraulic fluid port 21 is clearly described, for the first hydraulic fluid port 11, please refer to Fig. 4 B, in the left view (or carrying over arbitrary cross section of center line bearing of trend along the first hydraulic fluid port 11) of the first housing 10, the outer circumferential face of described first hydraulic fluid port 11 and the first housing 10 intersects at two the first intersection points 211, 212, the inner peripheral surface of the first hydraulic fluid port 11 and the first housing 10 is compared to two the second intersection points 213, 214, wherein the first intersection point 211, the mid point of 212 and the line at the first housing 10 center and the second intersection point 213, the mid point of 214 and the line at the first housing 10 center in a certain angle.
In the present invention, concrete restriction is not done to the shape of the first hydraulic fluid port 11 and the second hydraulic fluid port 21.Such as, the cross section of the first hydraulic fluid port 11 and the second hydraulic fluid port 21 can be circle, the polygonal of rule or be irregular special-shaped shape etc.As long as the bearing of trend of the first hydraulic fluid port 11 and the second hydraulic fluid port 21 does not point to the gyration center line of differential casing.
In addition, the first hydraulic fluid port 11 and the second hydraulic fluid port 21 can be arranged on diverse location along the circumference of the first housing 10 and the second housing 20.Such as, first hydraulic fluid port 11 and the second hydraulic fluid port 21 can be closed circular ports, and the axis of the first hydraulic fluid port 11 and the second hydraulic fluid port 21 deviates from the center line of the first housing 10 and the second housing 20 respectively, namely the first hydraulic fluid port 11 and the second hydraulic fluid port 21 be not respectively by end face that the first housing 10 and the second housing 20 contact.
Preferably, the first hydraulic fluid port 11 and the second hydraulic fluid port 21 are grooved mouth.As seen from Figure 3, the first hydraulic fluid port 11 and the second hydraulic fluid port 21 are through the end face contacted of the first housing 10 and the second housing 20.The hydraulic fluid port shape of this structure is convenient to processing, and can not produce considerable influence to the intensity of differential casing.In addition, because the first housing 10 and the second housing 20 are oppositely arranged, the first hydraulic fluid port 11 and the second hydraulic fluid port 21 that are formed as grooved mouth should be spaced apart from each other after the first housing 10 and the assembling of the second housing 20 form described differential casing in the circumference of differential casing, to guarantee that lubricant oil is sent into and discharges in different hydraulic fluid ports simultaneously.
As shown in Figure 4 A and 4 B shown in FIG., inner peripheral surface is extended to because the first hydraulic fluid port 11 runs through along the circumference of the first housing 10 from outer circumferential face, and the bearing of trend of the first hydraulic fluid port 11 deviates from the center line (being that the axis runout of the first hydraulic fluid port 11 is in the center line of the first housing 10 in the present embodiment) of the first housing 10, therefore, the sidewall being formed as the first hydraulic fluid port 11 of grooved mouth has the different position of height, and namely the first hydraulic fluid port 11 shows as and has High lateral wall 12 and low sidewall 13.When the first housing 10 rotates with different sense of rotation, the first hydraulic fluid port 11 can make lubricant oil send into forcibly or discharge the first housing 10.
In this embodiment, High lateral wall 12 and low sidewall 13 are parallel to each other, and are parallel to each other along the direction that the center line of the first housing 10 extends and center line, and namely High lateral wall 12 and low sidewall 13 are vertical with the end face of the first housing 10 respectively.Can imagine, in various embodiments, described High lateral wall 12 and low sidewall 13 also can be not parallel and/or mutually not vertical with the end face of the first housing 10, as long as make the relative any radial asymmetric through the first housing 10 center of intersection line of described High lateral wall 12 and the intersection line of the end face of the first housing 10 and the end face of low sidewall 13 and the first housing 10.
In said structure, the concrete discharge of lubricant oil or feeding process are, when the first housing 10 rotates along the counter clockwise direction in figure shown in arrow A, the low sidewall 13 of the first hydraulic fluid port 11 is in and rotates upstream, the High lateral wall 12 of the first hydraulic fluid port 11 is in and rotates downstream, low sidewall 13 from the first hydraulic fluid port 11 is flowed to High lateral wall 12 by the lubricant oil in differential casing, and is forced to discharge by the first hydraulic fluid port 11 under the action of the centrifugal.On the contrary, when the first housing 10 is rotated in a clockwise direction, the High lateral wall 12 of the first hydraulic fluid port 11 is in and rotates upstream, and low sidewall 13 is in and rotates downstream, from the lubricant oil of outside supply, the High lateral wall 12 from the first hydraulic fluid port 11 is flowed to low sidewall 13, thus can be forced to send into by the first hydraulic fluid port 11.Because the feeding of lubricant oil is consistent with the sense of rotation of differential casing with discharge direction, so lubricant oil there will not be turbulent phenomenon in differential casing, but carry out rotational flow in an orderly manner, evenly to lubricate all parts in differential casing.
As can be seen from Fig. 5 A and Fig. 5 B, the end face of the second housing 20 has identical structure with the end face of the first housing 10, in other words, the feeding of lubricant oil is identical with discharge principle, namely the second housing 20 sends into lubricant oil when the clockwise direction shown in arrow B rotates, removal of lubricant when opposite direction rotates.
According to above-mentioned principle, after the first housing 10 and the second housing 20 coordinate, should ensure that the one in the first hydraulic fluid port 11 and the second hydraulic fluid port 21 is filler opening, another one is oil outlet.In this case, first hydraulic fluid port 11 and the second hydraulic fluid port 21 can have multiple arrangement, as long as the first hydraulic fluid port 11 and the second hydraulic fluid port 21 are positioned at adjacent half slot 31(in the circumferential and will be described hereinafter about half slot 31) both sides oil-feed or simultaneously fuel-displaced when can ensure that both are different, the present invention does not limit multiple arrangement.
As can be seen here, the present invention, by after improving the hydraulic fluid port of lubricant oil, successfully can send into and discharges by pressure lubrication oil, strengthening the circulation of lubricant oil in differential casing, decrease the wearing and tearing between all parts in differential casing, improve the working life of differential mechanism.And differential casing of the present invention does not need to use extra lubricant oil pumping installations, does not need to increase other accessories on differential casing yet, thus have structure simple, be convenient to the advantages such as manufacture, thus reduce the cost of production of differential mechanism.
It should be noted that, when the cross section of the first hydraulic fluid port 11 and the second hydraulic fluid port 21 is other shapes, the sidewall of the first hydraulic fluid port 11 can be made equally to be parallel to each other, the sidewall of the second hydraulic fluid port 21 is parallel to each other.
In these cases, the sidewall of the first hydraulic fluid port 11 and the centerline parallel of the first housing 10 can be made further, and make the sidewall of the second hydraulic fluid port 21 and the centerline parallel of the second housing 20.In addition, when the cross section of the first hydraulic fluid port 11 and the second hydraulic fluid port 21 is other shapes, first hydraulic fluid port 11 and the second hydraulic fluid port 21 equally also can run through the first corresponding housing 10 and the end face of the second housing 20 respectively, ensure simultaneously the first hydraulic fluid port 11 and the second hydraulic fluid port 21 spaced in the circumferential.
Be appreciated that, deviate from the basis of the center line of the first housing 10 and the second housing 20 respectively at the bearing of trend of the first hydraulic fluid port 11 and the second hydraulic fluid port 21, preferably, the bearing of trend of the first hydraulic fluid port 11 and the second hydraulic fluid port 21 respectively with the central axis of differential casing.Like this, when hydraulic fluid port size is identical, especially when the first hydraulic fluid port 11 and the second hydraulic fluid port 21 are grooved mouth, between the High lateral wall of hydraulic fluid port and low sidewall, there is maximum height difference, thus make lubricant oil more easily send into and discharge, make the circulating effect of lubricant oil best.As shown in Figure 3, after the first housing 10 is fixedly connected with relatively with the second housing 20, the first hydraulic fluid port 11 and the second hydraulic fluid port 21 are symmetrical relative to adjacent half slot 31 in the circumferential.When differential casing entirety rotates in the direction of arrow A, the first hydraulic fluid port 11 is as the oil outlet of lubricant oil, and the second hydraulic fluid port 21 is as the filler opening of lubricant oil.When differential casing entirety rotates in opposite direction, the first hydraulic fluid port 11 is as the filler opening of lubricant oil, and the second hydraulic fluid port 21 is as the oil outlet of lubricant oil.In addition, multiple first hydraulic fluid port 11 and multiple second hydraulic fluid port 21 can be set respectively on the first housing 10 He on the second housing 20.The concrete number of the first hydraulic fluid port 11 and the second hydraulic fluid port 21 should be determined according to the lubrication needs of reality.In the present invention, mainly two the first hydraulic fluid ports 11 are set on the first housing 10, the second housing 20 arranges two the second hydraulic fluid ports 21.
When based on above-mentioned choice for use two hydraulic fluid ports, preferably, two the first hydraulic fluid ports 11 are symmetrical arranged relative to the center line of the first housing 10; Correspondingly, two the second hydraulic fluid ports 21 are symmetrical arranged relative to the center line of the second housing 20.Two hydraulic fluid ports on a housing are symmetrical relative to center line, can make two hydraulic fluid ports simultaneously for filler opening or simultaneously for oil outlet, thus increase the circulating load of lubricant oil in differential casing, ensure that all parts is lubricated fully.
More preferably, two first hydraulic fluid ports 11 symmetrically arranged relative to the center line of differential casing and two the second hydraulic fluid ports 21 are crisscross arranged equably along the circumference of differential casing.First hydraulic fluid port 11 makes at the oil inlet quantity of synchronization lubricant oil identical with oil pump capacity with the second hydraulic fluid port 21 in the structure of the circumferential full symmetric of differential casing, namely ensure that the oil mass of lubricant oil in differential casing is constant, be conducive to the lubrication of each component in differential casing.
Consider the processing technology of differential casing, can the cross section of the first hydraulic fluid port 11 and the second hydraulic fluid port 21 is set to square, so that processing.
In addition, requisite, should be provided with half slot 31 accordingly on the first housing 10 and the second housing 20, half slot 31 is oppositely arranged, thus forms circular hole.As shown in the figure, half slot 31 is evenly arranged along the circumference of described differential casing, thus the circular hole formed evenly is arranged in the circumference of described differential casing, thus for installing planet pin.
In addition, attachment hole 32 should be provided with accordingly on the first housing 10 and the second housing 20, attachment hole 32 extends along the axis of the first housing 10 and the second housing 20, and as shown in the figure, multiple attachment hole 32 is along the distribution of housing circumference, by using fastening piece (as bolt), the first housing 10 can be fixedly connected with the second housing 20.
Also it should be noted that, the present invention relates generally to the improvement of differential casing, about the working procedure of differential mechanism or the miscellaneous part etc. of differential mechanism, all belongs to known in those skilled in the art, is no longer described in detail at this.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.As long as it is without prejudice to thought of the present invention, content disclosed in this invention should be considered as equally.
Claims (8)
1. a differential casing, this differential casing comprises the first housing (10) and the second housing (20) that are fixedly connected with, it is characterized in that, to run through along the circumference of described first housing (10) from outer circumferential face at upper the first hydraulic fluid port (11) arranged of described first housing (10) and extend to inner peripheral surface, the bearing of trend of described first hydraulic fluid port (11) deviates from the center line of described first housing (10); To run through along the circumference of described second housing (20) from outer circumferential face at upper the second hydraulic fluid port (21) arranged of described second housing (20) and extend to inner peripheral surface, the bearing of trend of described second hydraulic fluid port (21) deviates from the center line of described second housing (20); Described first hydraulic fluid port (11) and described second hydraulic fluid port (21) run through corresponding the first housing (10) and the end face of the second housing (20) respectively, the end face of described second housing (20) has identical structure with the end face of described first housing (10), and the one in described first hydraulic fluid port (11) and described second hydraulic fluid port (21) is oil outlet, another one is filler opening, and described first hydraulic fluid port (11) and described second hydraulic fluid port (21) are crisscross arranged equably along the circumference of differential casing.
2. differential casing according to claim 1, is characterized in that, the bearing of trend of described first hydraulic fluid port (11) and described second hydraulic fluid port (21) respectively with the central axis of described differential casing.
3. differential casing according to claim 1 and 2, it is characterized in that, described first hydraulic fluid port (11) and described second hydraulic fluid port (21) are grooved mouth, and described first hydraulic fluid port (11) and described second hydraulic fluid port (21) are spaced apart from each other in the circumferential.
4. differential casing according to claim 1, is characterized in that, the sidewall forming described first hydraulic fluid port (11) is parallel to each other, and the sidewall forming described second hydraulic fluid port (21) is parallel to each other.
5. differential casing according to claim 4, it is characterized in that, the center line of the sidewall and the first housing (10) that form the first hydraulic fluid port (11) is parallel to each other, and forms the sidewall of described second hydraulic fluid port (21) and the centerline parallel of the second housing (20).
6. differential casing according to claim 1, it is characterized in that, on described first housing (10) and described second housing (20), be provided with half slot (31) accordingly respectively, described half slot (31) is evenly arranged along the circumference of described differential casing.
7. differential casing according to claim 6, is characterized in that, described first hydraulic fluid port (11) and described second hydraulic fluid port (21) are circumferentially gone up symmetrical relative to adjacent described half slot (31).
8. differential casing according to claim 1, it is characterized in that, attachment hole (32) is provided with accordingly respectively on described first housing (10) and described second housing (20), described attachment hole (32) extends, for described first housing (10) being fixedly connected with described second housing (20) along the axis of described first housing (10) and described second housing (20).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162553.8A CN102678899B (en) | 2012-05-23 | 2012-05-23 | Differential shell |
| PCT/CN2012/081939 WO2013174085A1 (en) | 2012-05-23 | 2012-09-25 | Differential shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162553.8A CN102678899B (en) | 2012-05-23 | 2012-05-23 | Differential shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678899A CN102678899A (en) | 2012-09-19 |
| CN102678899B true CN102678899B (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210162553.8A Active CN102678899B (en) | 2012-05-23 | 2012-05-23 | Differential shell |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102678899B (en) |
| WO (1) | WO2013174085A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678899B (en) * | 2012-05-23 | 2015-04-15 | 湖南中联重科车桥有限公司 | Differential shell |
| WO2017139322A1 (en) * | 2016-02-10 | 2017-08-17 | Magna Powertrain Of America, Inc. | Differential assembly with two-piece carrier and welded ring gear |
| CN107152518A (en) * | 2016-03-21 | 2017-09-12 | 深圳市兆威机电有限公司 | Miniature gears case and its shell mechanism |
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| CN1532436A (en) * | 2003-03-19 | 2004-09-29 | �ղ��Զ�����ʽ���� | Differential mechanism and differential mechanism shell |
| US20040224809A1 (en) * | 2003-05-05 | 2004-11-11 | Hayes Brian David | Dual level inverted portal axle lubrication configuration |
| CN201696580U (en) * | 2010-04-26 | 2011-01-05 | 田希亮 | Tractor differential |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080108471A1 (en) * | 2006-11-02 | 2008-05-08 | Deutsch Laurence A | Lubrication ports for a differential housing |
| KR100836691B1 (en) * | 2007-04-09 | 2008-06-10 | 현대자동차주식회사 | Lubricating structure of differential device |
| CN201236939Y (en) * | 2007-12-14 | 2009-05-13 | 中国第一汽车集团公司 | Lubrication oil spoon of hub reduction bridge and oil drainage hole type inter-wheel differential gear casing |
| CN102207189B (en) * | 2011-02-14 | 2013-05-15 | 浙江吉利汽车研究院有限公司 | Transmission lubricating structure of car |
| CN102678899B (en) * | 2012-05-23 | 2015-04-15 | 湖南中联重科车桥有限公司 | Differential shell |
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2012
- 2012-05-23 CN CN201210162553.8A patent/CN102678899B/en active Active
- 2012-09-25 WO PCT/CN2012/081939 patent/WO2013174085A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532436A (en) * | 2003-03-19 | 2004-09-29 | �ղ��Զ�����ʽ���� | Differential mechanism and differential mechanism shell |
| US20040224809A1 (en) * | 2003-05-05 | 2004-11-11 | Hayes Brian David | Dual level inverted portal axle lubrication configuration |
| CN201696580U (en) * | 2010-04-26 | 2011-01-05 | 田希亮 | Tractor differential |
| CN201858329U (en) * | 2010-09-26 | 2011-06-08 | 靳冬 | Ablation/abrasion-resistant differential assembly device |
| CN201909010U (en) * | 2011-02-23 | 2011-07-27 | 上汽依维柯红岩商用车有限公司 | Rear half axle gear capable of improving lubricating effect of heavy automobile drive axle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013174085A1 (en) | 2013-11-28 |
| CN102678899A (en) | 2012-09-19 |
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