CN102678899A - Differential shell - Google Patents
Differential shell Download PDFInfo
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- CN102678899A CN102678899A CN2012101625538A CN201210162553A CN102678899A CN 102678899 A CN102678899 A CN 102678899A CN 2012101625538 A CN2012101625538 A CN 2012101625538A CN 201210162553 A CN201210162553 A CN 201210162553A CN 102678899 A CN102678899 A CN 102678899A
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- Prior art keywords
- hydraulic fluid
- fluid port
- housing
- differential casing
- differential
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
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 that is applicable to ransaxle.
Background technique
As everyone knows, when going when automobile turning or on uneven road surface, differential mechanism can allow left and right wheels to rotate with different rotating speed, makes wheel make pure rolling on the ground.Wherein, planetary pinion and differential gear all are in differential casing, to mesh, and in order to reduce wear, in differential casing, injecting lubricant oil is the mode of using always so that the inner component of said differential casing are lubricated.
Shown in Figure 1A and Figure 1B, be a kind of differential casing of the prior art.Can find out; The oil inlet hole 1 and oil outlet 2 of filling lubricant oil are set respectively on the housing of the left and right sides of differential mechanism; And oil inlet hole 1 is parallel with the spin axis of differential casing with the bearing of trend of oil outlet 2 on differential casing; When differential mechanism rotates, be difficult to lubricant oil is sent in the differential casing through oil inlet hole on the one hand, cause lacking between inner planetary gear train of differential mechanism and liner lubricated easily.On the other hand, lubricant oil is difficult to from oil outlet, discharge, and causes lubricant oil in differential casing, can not effectively circulate; If lubricant oil is overstand in differential casing; Along with the rotation of differential mechanism, the temperature of lubricant oil raises, with the greasy property that influences lubricant oil.Above-mentioned gear teeth face destruction and the liner of either way will causing ablated, thereby reduces the operating life of differential mechanism.For this reason, when using this type of differential carrier, can on the casing of retarder, increase lubricating pump usually, differential casing is sent into or discharged to pressure lubrication oil.But because the increase of lubricating pump makes the structure of ransaxle become complicated, and has improved cost of production.
Shown in Fig. 2 A and Fig. 2 B; Be another kind of differential casing of the prior art; Can find out, similar among the oil inlet hole 1 that on this differential casing, is provided with and oil outlet 2 and Figure 1A and Figure 1B, different is that its differential casing is provided with foliated web 3.When differential carrier rotated, web 3 rotated thereupon, can lubricant oil be stirred in the differential casing.But because the web 3 of differential casing need occupy bigger space, when the shell space of ransaxle hour, web 3 is not easy to arrange.And differential mechanism work transmitting torque is bigger, need to adopt Forging Technology to make differential casing, and after increasing web 3, the structure relative complex of differential mechanism causes the blank complex forming technology of differential casing.
Summary of the invention
The purpose 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 present invention provides a kind of differential casing; This differential casing comprises first housing and second housing of fixed connection; Wherein, first hydraulic fluid port that on said first housing, is provided with is along extend to inner peripheral surface circumferentially running through from outer circumferential face of said first housing, and the bearing of trend of said first hydraulic fluid port deviates from the center line of said first housing; Second hydraulic fluid port that on said second housing, is provided with is along extend to inner peripheral surface circumferentially running through from outer circumferential face of said second housing, and the bearing of trend of said second hydraulic fluid port deviates from the center line of said second housing; And one in said first hydraulic fluid port and said second hydraulic fluid port is oil outlet, and another person is a filler opening.
Preferably, the center line with said differential casing is vertical respectively for the bearing of trend of said first hydraulic fluid port and said second hydraulic fluid port.
Preferably, said first hydraulic fluid port and said second hydraulic fluid port are the grooved mouth, and said first hydraulic fluid port and said second hydraulic fluid port upwards were spaced apart from each other in week.
Preferably, the sidewall that forms said first hydraulic fluid port is parallel to each other, and the sidewall that forms said second hydraulic fluid port is parallel to each other.
Preferably, form the sidewall of first hydraulic fluid port and the center line of first housing and be parallel to each other, the sidewall that forms said second hydraulic fluid port is parallel with the center line of second housing.
Preferably, said first hydraulic fluid port and said second hydraulic fluid port run through first housing of correspondence and the end face of second housing respectively.
Preferably, said first hydraulic fluid port and said second hydraulic fluid port circumferentially being crisscross arranged equably along differential casing.
Preferably, on said first housing and said second housing, be provided with half slot accordingly respectively, said half slot circumferentially evenly is provided with along said differential casing.
Preferably, said first hydraulic fluid port and said second hydraulic fluid port are upwards symmetrical with respect to adjacent half slot along week.
Preferably, on said first housing and said second housing, be provided with attachment hole accordingly respectively, said attachment hole extends axially along said first housing and said second housing, is used for said first housing is fixedly connected with said second housing.
After the present invention improves through the hydraulic fluid port to lubricant oil; Can successfully send into and discharge differential casing by pressure lubrication oil; Strengthen the circulation of lubricant oil in differential casing, reduced the wearing and tearing between each parts in the differential casing, the working life of having improved differential mechanism.And the present invention need not use extra lubricant oil pumping device, need on differential casing, not increase other accessories yet, thus have simple in structure, be convenient to advantages such as manufacturing, thereby reduced the cost of production of differential mechanism.
Other features and advantages of the present invention will partly specify in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with following embodiment, but is not construed as limiting the invention.In the accompanying drawings:
Figure 1A and Figure 1B are respectively the left view and the cross-sectional schematic of a kind of differential casing in the existing technology;
Fig. 2 A and Fig. 2 B are respectively the left view and the cross-sectional schematic of another kind of differential casing in the existing technology;
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 are respectively the stereogram and the left views of first housing in the differential casing shown in Fig. 3;
Fig. 5 A and Fig. 5 B are respectively the stereogram and the right elevations of second housing in the differential casing shown in Fig. 3.
Description of reference numerals
1 oil inlet hole, 2 oil outlets
3 webs, 10 first housings
11 first hydraulic fluid ports, 12 high sidewalls
13 low sidewall, 20 second housings
21 second hydraulic fluid ports, 31 half slots
32 attachment holes, 211,212 first intersection points
213,214 second intersection points
Embodiment
Be elaborated below in conjunction with the accompanying drawing specific embodiments of the invention.Should be understood that embodiment described herein only is used for explanation and explains the present invention, is not limited to the present invention.
In the present invention, under the situation of not doing opposite explanation, the word of use " first ", " second ", etc. be used for distinguishing various parts, but these parts are not limited to the annotation of above-mentioned word.In addition, as known in the field, differential casing is a solid of rotation, and " center line " is the spin axis of differential casing.
Referring to Fig. 3 to Fig. 5 B, differential casing of the present invention comprises first housing 10 and second housing 20 of fixed connection, and both have identical sense of rotation down after being fixedly connected in working order.The part that is engaged with second housing 20 by visible first housing 10 of figure is structure ringwise roughly.First hydraulic fluid port 11 that on first housing 10, is provided with is along extend to inner peripheral surface circumferentially running through from outer circumferential face of first housing 10, and the bearing of trend of first hydraulic fluid port 11 deviates from the center line of first housing 10; Second hydraulic fluid port 21 that on second housing 20, is provided with is along extend to inner peripheral surface circumferentially running through from outer circumferential face of second housing 20, and the bearing of trend of second hydraulic fluid port 21 deviates from the center line of second housing 20.Wherein, according to the difference of the sense of rotation of differential casing, one in first hydraulic fluid port 11 and second hydraulic fluid port 21 is oil outlet, and another person is a filler opening.In other words, can make first hydraulic fluid port 11 as filler opening, second hydraulic fluid port 21 perhaps makes first hydraulic fluid port 11 as oil outlet as oil outlet, and second hydraulic fluid port 21 is as filler opening.
In said structure, " departing from " is that the bearing of trend with respect to first hydraulic fluid port 11 or second hydraulic fluid port 21 points to for the center line of first housing 10 or second housing 20.Promptly the bearing of trend of first hydraulic fluid port 11 center line that deviates from first housing 10 is meant that the bearing of trend of first hydraulic fluid port 11 does not point to the center line of first housing 10; Equally, the bearing of trend of second hydraulic fluid port 21 center line that deviates from second housing 20 is meant that the bearing of trend of second hydraulic fluid port 21 does not point to the center line of second housing 20.Implication for bearing of trend disalignment that said first hydraulic fluid port 11 and second hydraulic fluid port 21 more clearly are described; With first hydraulic fluid port 11 is example; Please refer to Fig. 4 B; In the left view (or edge first hydraulic fluid port 11 carries over arbitrary cross section of center line bearing of trend) of first housing 10; The outer circumferential face of said first hydraulic fluid port 11 and first housing 10 intersects at the inner peripheral surface of two first intersection points, 211,212, the first hydraulic fluid ports 11 and first housing 10 compared to two second intersection points 213,214, and wherein the line at the mid point of the line at the mid point of first intersection point 211,212 and first housing, 10 centers and second intersection point 213,214 and first housing, 10 centers is in a certain angle.
In the present invention, the shape of first hydraulic fluid port 11 and second hydraulic fluid port 21 is not done concrete qualification.For example, the cross section of first hydraulic fluid port 11 and second hydraulic fluid port 21 can or be an irregular special-shaped shape etc. for regular circular, polygonal.As long as the bearing of trend of first hydraulic fluid port 11 and second hydraulic fluid port 21 does not point to the gyration center line of differential casing.
In addition, first hydraulic fluid port 11 and second hydraulic fluid port, 21 edge first housings 10 and second housing 20 circumferentially can be arranged on diverse location.For example; First hydraulic fluid port 11 and second hydraulic fluid port 21 can be the circular ports of sealing; And the axis of first hydraulic fluid port 11 and second hydraulic fluid port 21 deviates from the center line of first housing 10 and second housing 20 respectively, and promptly first hydraulic fluid port 11 and second hydraulic fluid port 21 be not respectively through first housing 10 and second housing, 20 contacted end faces.
Preferably, first hydraulic fluid port 11 and second hydraulic fluid port 21 are the grooved mouth.Visible by Fig. 3, first hydraulic fluid port 11 and second hydraulic fluid port 21 are through the contacted end face of first housing 10 and 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 first housing 10 and second housing 20 are oppositely arranged; First hydraulic fluid port 11 and second hydraulic fluid port 21 that form the grooved mouth should upwards be spaced apart from each other in the week of differential casing behind first housing 10 and the said differential casing of second housing, 20 assembling formation, in different hydraulic fluid ports, send into and discharge simultaneously to guarantee lubricant oil.
Shown in Fig. 4 A and Fig. 4 B; Because first hydraulic fluid port 11 is along circumferentially running through from outer circumferential face of first housing 10 extending to inner peripheral surface; And the bearing of trend of first hydraulic fluid port 11 deviates from the center line (axis runout that is first hydraulic fluid port 11 in this mode of execution is in the center line of first housing 10) of first housing 10; Therefore, the sidewall that forms first hydraulic fluid port 11 of grooved mouth has the different position of height, and promptly first hydraulic fluid port 11 shows as and has high sidewall 12 and low sidewall 13.When first housing 10 rotated with different sense of rotation, first hydraulic fluid port 11 can make lubricant oil send into or discharge first housing 10 by the strong hand.
In this embodiment, high sidewall 12 is parallel to each other with low sidewall 13, and is parallel to each other along direction and the center line that the center line of first housing 10 extends, and the end face with first housing 10 is vertical respectively with low sidewall 13 for promptly high sidewall 12.Can imagine; In different embodiment; Said high sidewall 12 and low sidewall 13 also can be not parallel and/or not vertical each other with the end face of first housing 10, as long as make that the intersection line of end face of intersection line and the low sidewall 13 and first housing 10 of end face of the said high sidewall 12 and first housing 10 is asymmetric through first housing, 10 radius centered relatively arbitrarily.
The concrete discharge of lubricant oil or the process of sending into do in the said structure; When the counter clockwise direction shown in the arrow A is rotated among first housing, the 10 edge figure; The low sidewall 13 of first hydraulic fluid port 11 is in the rotation upper reaches; The high sidewall 12 of first hydraulic fluid port 11 is in the rotation downstream, and the lubricant oil in the differential casing will flow to high sidewall 12 from the low sidewall 13 of first hydraulic fluid port 11, and is forced to discharge by first hydraulic fluid port 11 under the action of the centrifugal.On the contrary; When first housing 10 was rotated in a clockwise direction, the high sidewall 12 of first hydraulic fluid port 11 was in the rotation upper reaches, and low sidewall 13 is in the rotation downstream; The lubricant oil of supplying with from the outside will flow to low sidewall 13 from the high sidewall 12 of first hydraulic fluid port 11, thereby can forced to send into by first hydraulic fluid port 11.Because sending into of lubricant oil with to discharge direction consistent with the sense of rotation of differential casing, so lubricant oil turbulent phenomenon can not occur in differential casing, but rotate in an orderly manner mobile, evenly lubricated so that each parts in the differential casing are carried out.
Can find out by Fig. 5 A and Fig. 5 B; The end face of second housing 20 has identical structure with the end face of first housing 10; In other words; Sending into to discharge principle identical of lubricant oil, promptly second housing 20 is sent into lubricant oil when the clockwise direction shown in the arrow B rotates, removal of lubricant during the opposite direction rotation.
According to above-mentioned principle, after first housing 10 and 20 cooperations of second housing, should guarantee that one in first hydraulic fluid port 11 and second hydraulic fluid port 21 is filler opening, another person is an oil outlet.In this case; First hydraulic fluid port 11 and second hydraulic fluid port 21 can have multiple arrangement; Can guarantee both not oil-feeds simultaneously or simultaneously fuel-displaced so long as first hydraulic fluid port 11 and second hydraulic fluid port 21 are positioned at the both sides of adjacent half slot 31 (will describe hereinafter about half slot 31) on circumferentially, the present invention does not limit multiple arrangement.
This shows; The present invention can successfully send into and discharge by pressure lubrication oil after improving through the hydraulic fluid port to lubricant oil, has strengthened the circulation of lubricant oil in differential casing; The wearing and tearing between each parts in the differential casing have been reduced, the working life of having improved differential mechanism.And differential casing of the present invention need not use extra lubricant oil pumping device, need on differential casing, not increase other accessories yet, thus have simple in structure, be convenient to advantages such as manufacturing, thereby reduced the cost of production of differential mechanism.
Need to prove, when being other shapes, the sidewall of first hydraulic fluid port 11 is parallel to each other, the sidewall of second hydraulic fluid port 21 is parallel to each other in the cross section of first hydraulic fluid port 11 and second hydraulic fluid port 21.
Under above-mentioned situation, can further make the sidewall of first hydraulic fluid port 11 parallel, and make the sidewall of second hydraulic fluid port 21 parallel with the center line of second housing 20 with the center line of first housing 10.In addition; When the cross section of first hydraulic fluid port 11 and second hydraulic fluid port 21 is other shapes; First hydraulic fluid port 11 and second hydraulic fluid port 21 equally also can run through corresponding first housing 10 and the end face of second housing 20 respectively, guarantee that simultaneously first hydraulic fluid port 11 and second hydraulic fluid port 21 upwards separated each other in week.
Be appreciated that; Deviate from respectively at the bearing of trend of first hydraulic fluid port 11 and second hydraulic fluid port 21 on the basis of center line of first housing 10 and second housing 20; Preferably, the center line with differential casing is vertical respectively for the bearing of trend of first hydraulic fluid port 11 and second hydraulic fluid port 21.Like this; When the hydraulic fluid port size is identical, be under the situation of grooved mouth especially at first hydraulic fluid port 11 and second hydraulic fluid port 21, have maximum height difference between the high sidewall of hydraulic fluid port and the low sidewall; Thereby make lubricant oil more easily send into and discharge, make the circulating effect of lubricant oil best.As shown in Figure 3, at first housing 10 with after second housing, 20 relative fixed are connected, first hydraulic fluid port 11 and second hydraulic fluid port 21 week upwards with respect to adjacent half slot 31 symmetries.When differential casing integral body was rotated in the direction of arrow A, first hydraulic fluid port 11 was as the oil outlet of lubricant oil, and second hydraulic fluid port 21 is as the filler opening of lubricant oil.When differential casing integral body was rotated in opposite direction, first hydraulic fluid port 11 was as the filler opening of lubricant oil, and second hydraulic fluid port 21 is as the oil outlet of lubricant oil.In addition, can on first housing 10 with on second housing 20 a plurality of first hydraulic fluid ports 11 and a plurality of second hydraulic fluid ports 21 be set respectively.The concrete number of first hydraulic fluid port 11 and second hydraulic fluid port 21 should be confirmed according to the lubrication needs of reality.Among the present invention, mainly be that two first hydraulic fluid ports 11 are set on first housing 10, two second hydraulic fluid ports 21 are set on second housing 20.
Use based on above-mentioned selection under the situation of two hydraulic fluid ports, preferably, the center line of two first hydraulic fluid ports 11 with respect to first housing 10 is symmetrical set; Correspondingly, two second hydraulic fluid ports 21 are symmetrical set with respect to the center line of second housing 20.Two hydraulic fluid ports on a housing are symmetrical with respect to center line, can make two hydraulic fluid ports simultaneously for filler opening perhaps is oil outlet simultaneously, thereby increase the circulating load of lubricant oil in differential casing, and it is lubricated fully to guarantee that each parts obtain.
More preferably, with respect to symmetrically arranged two first hydraulic fluid ports 11 of the center line of differential casing and two second hydraulic fluid ports 21 circumferentially being crisscross arranged equably along differential casing.First hydraulic fluid port 11 makes at the oil inlet quantity of synchronization lubricant oil identical with oil pump capacity with second hydraulic fluid port 21 at the circumferentially complete symmetrical structure of differential casing; Guaranteed that promptly the oil mass of lubricant oil in differential casing is constant, helped the lubricated of each component in the differential casing.
Consider the processing technology of differential casing, can first hydraulic fluid port 11 and the cross section of second hydraulic fluid port 21 be set to square so that processing.
In addition, requisitely be, should on first housing 10 and second housing 20, be provided with half slot 31 accordingly, half slot 31 is oppositely arranged, thereby forms circular hole.As shown in the figure, half slot 31 is provided with along the circumferentially even of said differential casing, thereby makes the circular hole that forms be provided with at the circumferentially even of said differential casing, thereby is used to install planet pin.
In addition; Should on first housing 10 and second housing 20, be provided with attachment hole 32 accordingly; Attachment hole 32 extends axially along first housings 10 and second housing 20, and as shown in the figure, and a plurality of attachment hole 32 circumferentially distributes along housing; Through using fastening piece (like bolt), can first housing 10 be fixedly connected with second housing 20.
Need to prove that also the present invention relates generally to the improvement of differential casing,, all belong to known in those skilled in the art, no longer be described in detail at this about the working procedure of differential mechanism or the miscellaneous part of differential mechanism etc.
More than combine accompanying drawing to describe preferred implementation of the present invention in detail; But; The present invention is not limited to the detail in the above-mentioned mode of execution; In technical conceive scope 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.
Need to prove in addition; Each concrete technical characteristics described in above-mentioned embodiment under reconcilable situation, can make up through any suitable manner; For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.As long as it without prejudice to thought of the present invention, should be regarded as the disclosed content of the present invention equally.
Claims (10)
1. differential casing; This differential casing comprises first housing (10) and second housing (20) of fixed connection; It is characterized in that; Go up first hydraulic fluid port (11) that is provided with at said first housing (10) and extend to inner peripheral surface along circumferentially running through from outer circumferential face of said first housing (10), the bearing of trend of said first hydraulic fluid port (11) deviates from the center line of said first housing (10); Go up second hydraulic fluid port (21) that is provided with at said second housing (20) and extend to inner peripheral surface along circumferentially running through from outer circumferential face of said second housing (20), the bearing of trend of said second hydraulic fluid port (21) deviates from the center line of said second housing (20); And one in said first hydraulic fluid port (11) and said second hydraulic fluid port (21) is oil outlet, and another person is a filler opening.
2. differential casing according to claim 1 is characterized in that, the center line with said differential casing is vertical respectively for the bearing of trend of said first hydraulic fluid port (11) and said second hydraulic fluid port (21).
3. differential casing according to claim 1 and 2 is characterized in that, said first hydraulic fluid port (11) and said second hydraulic fluid port (21) are the grooved mouth, and said first hydraulic fluid port (11) and said second hydraulic fluid port (21) upwards were spaced apart from each other in week.
4. differential casing according to claim 1 is characterized in that, the sidewall that forms said first hydraulic fluid port (11) is parallel to each other, and the sidewall that forms said second hydraulic fluid port (21) is parallel to each other.
5. differential casing according to claim 4 is characterized in that, forms the sidewall of first hydraulic fluid port (11) and the center line of first housing (10) and is parallel to each other, and the sidewall that forms said second hydraulic fluid port (21) is parallel with the center line of second housing (20).
6. differential casing according to claim 1 and 2 is characterized in that, said first hydraulic fluid port (11) and said second hydraulic fluid port (21) run through first housing (10) of correspondence and the end face of second housing (20) respectively.
7. differential casing according to claim 1 is characterized in that, said first hydraulic fluid port (11) and said second hydraulic fluid port (21) circumferentially being crisscross arranged equably along differential casing.
8. differential casing according to claim 1; It is characterized in that; On said first housing (10) and said second housing (20), be provided with half slot (31) accordingly respectively, said half slot (31) circumferentially evenly is provided with along said differential casing.
9. differential casing according to claim 8 is characterized in that, said first hydraulic fluid port (11) and said second hydraulic fluid port (21) made progress with respect to adjacent said half slot (31) symmetry along week.
10. differential casing according to claim 1; It is characterized in that; On said first housing (10) and said second housing (20), be provided with attachment hole (32) accordingly respectively; Said attachment hole (32) extends axially along said first housing (10) and said second housing (20), is used for said first housing (10) is fixedly connected with said 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 |
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| Publication Number | Publication Date |
|---|---|
| CN102678899A true CN102678899A (en) | 2012-09-19 |
| CN102678899B CN102678899B (en) | 2015-04-15 |
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| 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 |
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| CN (1) | CN102678899B (en) |
| WO (1) | WO2013174085A1 (en) |
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|---|---|---|---|---|
| WO2013174085A1 (en) * | 2012-05-23 | 2013-11-28 | 中联重科股份有限公司 | Differential shell |
| CN108603580A (en) * | 2016-02-10 | 2018-09-28 | 麦格纳动力系美国有限公司 | The differential assembly of ring gear with two-piece type load-bearing part and welding |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013174085A1 (en) | 2013-11-28 |
| CN102678899B (en) | 2015-04-15 |
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