CN1441182A - Clutch type slip limiting differential mechanism - Google Patents
Clutch type slip limiting differential mechanism Download PDFInfo
- Publication number
- CN1441182A CN1441182A CN03106797A CN03106797A CN1441182A CN 1441182 A CN1441182 A CN 1441182A CN 03106797 A CN03106797 A CN 03106797A CN 03106797 A CN03106797 A CN 03106797A CN 1441182 A CN1441182 A CN 1441182A
- Authority
- CN
- China
- Prior art keywords
- differential
- clutch
- oil
- limited slip
- inversion axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0447—Control of lubricant levels, e.g. lubricant level control dependent on temperature
-
- 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
-
- 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
- F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
-
- 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
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0445—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control for supply of different gearbox casings or sections
-
- 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
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
-
- 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
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0472—Seals
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
A clutch type limited slip differential preventing the seizure of a clutch surely. This clutch type limited slip differential is provided with: a clutch 3 which is installed between the outer circumference of a back shaft 1a of a side gear 1 and the inner circumference of a differential cover 2 and transmits power between the back shaft 1a of the side gear 1 and the differential cover 2 by connecting interruptably; a baffle 9 in a differential case 5 which distinguishes a first oil sump domain S1 in the differential case 5 in which a drive gear 10 of a differential is immersed under the oil surface from other second oil sump domain S2 in the differential case 5, obstructs and permits the oil flow between the first oil sump domain S1 and the second oil sump domain S2; a bearing cage 8 at the end of the differential case 5 which supports a drive shaft 7 and the differential cover 2 rotatably through a bearing 6; a first communication passage R1 communicated with the outer circumference of the back shaft 1a of a side gear 1 from an atmosphere release part mounted on the bearing cage 8; and a second communication passage R2 communicated with atmosphere from the inner circumference of the differential cover 2.
Description
Technical field
The present invention relates to a kind of clutch-type limited slip differential.
Background technique
Limited slip differential (Limited Slip Differential) is equipped on the entrucking wheeled vehicle, is known as LSD, differential restricting means or non-limited slip differential etc., is known device.As doing explanation roughly, common differential mechanism (Differential) has the moment identical functions of the left and right wheels of making (hereinafter referred to as " tire "), and allows left and right sides tire that the device of rotational speed difference is arranged with this.To this, limited slip differential, do not allow left and right sides tire to have rotational speed poor when impartial moment of distributing is less than separately tire slip stall torque on the gear of left and right side, but, allow the slip (when for example turning round) of this tire for the moment more than the tire slip limit.As such limited slip differential, known have moment induction type, rotary inductive formula and an external control formula etc.As the moment induction type is known clutch-type, gear friction type and cam lock compact form etc. are arranged.And the present application that is described in detail later is about clutch-type, particularly about its lubricated structure.Fig. 8 is the lubricating structure example in the past of clutch-type, but since the back be described in detail, below only explanation and the embodiment of the present application of being described in detail later part relatively.
Differential gear, it is lubricated to be to spatter oily impeller type.Thereby clutch is a wet type.Here, dish and the flat board that constitutes clutch slides when tire slides mutually.Thereby, need prevent the scorification of clutch, here, clutch is by oil lubrication (so-called " oil lubricating ").
Particularly, with reference to the example of Fig. 8, and use Fig. 4,6 and 7 example describes.As shown in Figure 8, between the interior week of the periphery of the inversion axis 1a of side gear 1 and differential cover 2 (Differentialcover), stride and establish clutch 3, interrupted freely the connection and transferring power between the inversion axis 1a of side gear 1 and differential cover 2.Differential cover 2 has large diameter hole 2a, can get a glimpse of dull and stereotyped 3a in large diameter hole 2a.At the back side of dull and stereotyped 3a is dish 3b, and is dull and stereotyped 3a dull and stereotyped 3a of alternate configurations and dish 3b in this wise at the back side of dish 3b.Dull and stereotyped 3a has a plurality of protruding 3aa in periphery as shown in Figure 6, and these protruding 3aa are embedded in the left and right directions cannelure (not shown) in week in the differential cover 2, and it is dynamic to be free skating.In addition, dish 3b has a plurality of internal tooth 3bb interior week as shown in Figure 7, and these internal tooths 3bb is embedded on the vertical splined shaft of left and right directions of left and right side gear 1 periphery, and it is dynamic to be free skating.In addition, the back side of the inversion axis 1a of side gear 1 can contact on the thrust washer 4 (so-called " thrust-bearing ") as shown in Figure 4 with being free to slide.The back side of thrust washer 4, the protruding 4a (with reference to Fig. 3) by periphery is not installed on the differential cover 2 revolvably.The dot and dash line L of Fig. 8 represents lubricated pasta.In addition, pasta L when stopping, when travelling, on slope road or concavo-convex road, it is whole and its part is different certainly.
That is, when vehicle driving, differential cover 2 rotations.Here, in the time of below large diameter hole 2a is positioned at pasta L, the outside that touches the dull and stereotyped 3a of large diameter hole 2a contact with oil, and the oil of contact flow between the dull and stereotyped 3a and dish 3b of clutch 3 along dull and stereotyped 3a face, reach the back side of inversion axis 1a of side gear 1 and the surface of contact of thrust washer 4.Produce lubricated and cooling by oil here, to the surface of contact of the back side of the inversion axis 1a of side gear 1 and thrust washer 4.Yet particularly flow into the oil between dull and stereotyped 3a and the dish 3b, because differential cover 2 rotation produces centrifugal force, by this centrifugal force towards interior week of differential cover 2, between dull and stereotyped 3a and dish 3b, flow, lubricated dull and stereotyped 3a of cooling and dish 3b prevent the scorification of clutch 3 thus.
Yet, have such lubricating structure, in clutch-type limited slip differential in the past, when vehicle driving, owing to have the differential cover rotation of gear, pasta is pressed against on the inwall of differential mechanism casing, and pasta is sagging state.And, because large diameter hole 2a is in the position of leaving from the running shaft of clutch 3, near the rotating center side of clutch 3 because lubricated oil become be difficult to by, so can not carry out lubricated fully, the undesirable situation that just has generation to narrate below.The scorification of clutch, remove dish and dull and stereotyped distortion and quality of item bad outside, it is common becoming the rubbish that causes in the oil and the reason of low on fuel.Particularly, for example changeing jar and from unloading in the such building machinery of truck etc., because the character of operation, in any case at the bad sitework of pavement state, have muddy starting and mire to travel, in addition, its starting torque and driving moment are also big more.Therefore, just many for the generation that the tire of the moment more than the tire slip limit slides, thereby, in any case the slip of the clutch that also mostly occurs.In addition, in such building machinery etc., slow and (that is, the rotational speed of differential cover 2 is slow) round in the short distance that the regulation of turning round is arranged of the speed of a motor vehicle travels more more, thereby, only with just the mostly occur slip of clutch of the quantity of turning round.That is, in such building machinery etc., the slip of the clutch that not only mostly occurs, and sliding time is also long, and carry-over moment big (promptly generation frictional heat) easily.Therefore, worried about especially the lubricated deficiency of clutch 3 in such building machinery etc., in addition, visible 2～3 examples of the scorification phenomenon of such clutch 3.In addition, this phenomenon, anti-pass moving gear side clutch 3 is more remarkable than driving gear side clutch 3.In a word, in the clutch-type limited slip differential of the lubricating structure of conventional art, as being used in such wheel load and,, being incomplete device owing to produce insufficient lubrication from the device of the building machinery that unloads the truck class etc.
Summary of the invention
The present invention is in view of the worry to above-mentioned conventional art, and its objective is provides a kind of clutch-type limited slip differential that can prevent the clutch scorification more reliably.
For achieving the above object, clutch-type limited slip differential of the present invention has:
Be erected between interior week of periphery and differential cover of inversion axis of side gear, intermittently freely be connected and between inversion axis and differential cover transferring power clutch and
Though the driving gear of differential mechanism be immersed in the 1st oil storage zone and another the 2nd oil storage in the case of differential in the case of differential under the pasta regional separate and stop allow in the case of differential of the interregional oil flow of the 1st and the 2nd oil storage baffle plate and
Be located on the case of differential end, by bearing support with rotating freely each transmission shaft and differential cover the bearing fixing frame and
Be communicated to from the atmosphere opening portion on the bearing fixing frame of being located at inversion axis periphery the 1st access and
The 2nd access that is communicated to atmosphere interior week from differential cover.
According to above-mentioned formation, by the rotation of driving gear the oil in the 1st oil storage zone has been held together in large quantities, but, descended so can suppress the pasta in the 2nd oil storage zone owing to stay the flowing of oil in zone to be suppressed by baffle plate from the 2nd oil storage zone to the 1st oil storage.So the oil mass that come out in concavo-convex the 2nd oil storage zone of holding together from the outside of the case of differential that is rotated becomes many.Thereby the oil mass that flow in the atmosphere opening portion on the bearing fixing frame that is located at the 2nd oil storage area side (that is anti-pass moving gear side clutch side) also becomes many.Flow into the oil in the atmosphere opening portion, discharge and drop to the 1st, the 2nd oil storage zone to atmosphere, in addition, directly be discharged to the 1st, the 2nd oil storage zone through the 1st access, clutch and the 2nd access.That is, according to above-mentioned the 1st formation, driving gear side clutch also can reach the scorification that prevents anti-pass moving gear side clutch simultaneously more reliably from needless to say.
In addition, in the above-described configuration, also can be following structure.
(1) is located at atmosphere opening portion on the bearing fixing frame, can be used as the internal void of the bearing in the bearing fixing frame.This is the 1st example as atmosphere opening portion.Thereby its action effect is identical with above-mentioned formation.
(2) be located at atmosphere opening portion on the bearing fixing frame, still can be used as the downward hole of the first half that is located at the bearing fixing frame.This is the 2nd example as atmosphere opening portion.Thereby its action effect is also still identical with above-mentioned formation.But, produce the degrees of freedom that the oily introducing port in downward hole can be configured in only position, and only this just can guarantee to prevent the reliable oil mass of clutch scorification.Therefore, the 2nd example can reach the scorification that prevents clutch more reliably than above-mentioned the 1st example.
(3) the 1st access also can constitute the outside of its inwall at least, have to the periphery of the inversion axis of side gear, the position that tilts gradually of direction laterally.Constitute the wall of the 1st access, must use in the differential mechanism to constitute with the transmission shaft periphery.And, because these parts rotations produce centrifugal force by this oil that is rotated in the 1st access.In addition, the axial oil of transmission is also followed the transmission shaft rotation and is produced centrifugal force by its viscosity., because the 1st access, have the periphery of the inversion axis of the lateral side gear of its inwall at least, the position that tilts gradually of direction laterally here, so the oil in the 1st access is supplied to the periphery of the inversion axis of side gear soon.Thereby, can prevent the clutch scorification more reliably.
(4) peripheral part at the inversion axis of side gear is installed with path, and making this path is desirable as the part of the 1st access.Make the flat board that constitutes clutch and dish wherein the peripheral part of the inversion axis of a side and side gear mesh.Yet this engagement stops oil flow easily.To this because as the part of the 1st access, be installed with path at the peripheral part of the inversion axis of side gear, so be difficult to stop oil flow.Thereby the oil that can carry out swimmingly between dull and stereotyped and dish is supplied with.This is formed in dull and stereotyped and dish for many plates the time, can access the effect that prevents the clutch scorification significantly.
(5) in addition, make the groove of the path that connection passes at the outer circumferential face of the inversion axis of side gear, to pass be desirable at the back side of the inversion axis of gear from the side.Differential mechanism as previously mentioned, the inversion axis of side gear contacts with thrust washer 4., by above-mentioned groove is set, the sufficient oil mass of supplying with to clutch also can being streamed to the surface of contact of thrust washer 4 here, is the structure that can improve in the lubricity of surface of contact therefore.
Description of drawings
Fig. 1 is the sectional view of clutch-type limited slip differential of the present invention.
Fig. 2 is the figure before differential cover of the present invention, thrust washer and the side gear assembling, (a) expression differential cover, (b) expression thrust washer, (c) expression side gear.
Fig. 3 is the plan view of differential cover of the present invention, (a) expression outer side surface, (b) expression inner side surface.
Fig. 4 is the inner side surface figure of thrust washer of the present invention.
Fig. 5 is the outer side surface figure of side gear of the present invention.
Fig. 6 is the plan view of flat board of the present invention.
Fig. 7 is the plan view of dish of the present invention.
Fig. 8 is the sectional view of clutch-type limited slip differential in the past.
Embodiment
Below, desirable embodiment of the present invention is described with reference to Fig. 1～7.In addition, in these figure except that including many embodiments, comparative descriptions for convenience, Fig. 1 serves as that the basis constitutes with the example of lubricating structure in the past of Fig. 8 of having illustrated especially, to both rating units with circle fence up (in Fig. 1 P1～P5, in Fig. 8 P01～P05).Therefore, also compare with reference to Fig. 8 together.
The key element of the majority of illustrative limited slip differential in Fig. 1 is as the key element that has illustrated in the technology in the past of reference Fig. 8.Put it briefly, set up clutch 3 between the interior week of the periphery of the inversion axis 1a of side gear 1 and differential cover 2, clutch 3 is interrupted freely to be connected and transferring power between the inversion axis 1a of side gear 1 and differential cover 2.Differential cover 2 has large diameter hole 2a, can get a glimpse of a part of surperficial of dull and stereotyped 3a in large diameter hole 2a.And, alternately disposing dish 3b and dull and stereotyped 3a successively from the back side of dull and stereotyped 3a.Dull and stereotyped 3a as shown in Figure 6, has a plurality of protruding 3aa on its excircle, these protruding 3aa are embedded in the left and right directions cannelure (not having diagram) in week in the differential cover 2, are the state of being free to slide.Dish 3b has a plurality of internal tooth 3bb as shown in Figure 7 on inner circumference, these internal tooths 3bb is embedded on the vertical splined shaft 1aa of left and right directions (with reference to Fig. 2 (c), Fig. 5) of periphery of inversion axis 1a of side gear 1, is the state of being free to slide.In addition, the back side of the inversion axis 1a of side gear 1 contacts with as shown in Figure 4 thrust washer 4 (so-called " thrust-bearing ") with being free to slide.The back side of thrust washer 4, the protruding 4a (with reference to Fig. 4) by periphery is not installed on the differential cover 2 revolvably.The point horizontal line L of Fig. 1 represents lubricated pasta.In addition, pasta L is also such as already described, when stopping, when travelling, on slope road or concavo-convex road, it is whole and its part is different certainly.But, in the following description, for convenience, except that special note, ignore these differences.In addition, though also undeclared, bearing 6 is housed at the two ends of the case of differential 5 in respectively, fixedly install rotation respectively by bearing 6 and freely support the bearing fixing frame 8 of left and right sides transmission shaft 7 and differential cover 2 (in Fig. 8 too).
In the limited slip differential that constitutes like this, embodiment 1 feature part is as follows.
(1) baffle plate 9 (relatively P1 and P01) is set in the case of differential 5.At length be, the driving gear 10 of differential mechanism, on the lug boss 5a of the bottom that casts from the case of differential 5, clamping bolt 5b and baffle plate 9 is erected so that the 1st oil storage zone S1 in the case of differential 5 that is immersed in pasta are under distinguished with the regional S2 of another the 2nd oil storage in the case of differential 5 and contact but not overslaugh differential mechanism rotates with differential mechanism.In addition, as baffle plate, while be to stop oil flow to allow the parts of oil flow again, preparing has multiple box, flat (one-board, multi-plate), form and installation forms such as cellular type and mazy type is arranged.Embodiment 1 baffle plate is that veneer has cellular type, though not shown in the figures, on 9 on baffle plate, have a lot of punchings, while stop oil flow between the 1st, the 2nd oil storage zone S1, S2, allow oil flow again.
(2) the 2nd, be provided with the bearing 6 in the bearing fixing frame 8 the internal void, be communicated with the 1st access R1 (relatively P1 and P02) of periphery of the inversion axis 1a of side gear 1.Above-mentioned internal void correspondence is as " the atmosphere opening portion " of constitutive requirements of the present invention.That is, bearing 6 is by oil lubrication.In detail, bearing 6 has gap (above-mentioned " internal void ") between the rotor of ball between this outer ring and the inner ring and roller etc., in this gap owing to fill with oil and by oil lubrication.Thereby, from above-mentioned internal void through the oil of the 1st access R1, can arrive the periphery of the inversion axis 1a of side gear 1.
(3) the 3rd, on differential cover 2, be provided with in it week by the 2nd access R2 (relatively P3 and P03) of the connection atmosphere of open bore R2A.
According to the foregoing description 1, the action effect below producing.When differential cover 2 rotations, the driving gear 10 that is fixedly installed on differential cover 2 outer surfaces also rotates, but convex partss such as driving cog wheel face 10a and bolt 2b, held together the oil in the 1st, the 2nd oil storage zone S1, the S2, the the 1st, the 2nd drop L1, the L2 (not having diagram, as follows) of the 1st, the 2nd oil storage zone S1, S2 are descended.Returned or following current etc. at the inwall of the case of differential 5 etc. by the oil that held together, its majority drops in the 1st, the 2nd oil storage regional S1, the S2.
Yet driving gear 10 is configured in from the 1st oil storage zone S1 directly over it.Thereby driving cog wheel face 10a makes the oil in the S1 of the 1st oil storage zone, holds together more than the amount of holding together oil in the 2nd oil storage zone S2 that constitutes from the convex partss such as bolt 2b by differential cover 2 outsides.Thereby if do not have baffled 9 conventional art, the drop L2 of anti-pass moving gear side (corresponding to the 2nd oil storage zone S2) descends continuously.But according to embodiment 1, owing to have baffle plate 9, the oil in the 2nd oil storage zone S2 (corresponding to anti-pass moving gear side) is difficult to flow to the 1st oil storage zone S1 (corresponding to the driving gear side), so the 2nd drop L2 obviously uprises than the 1st drop L1.In other words, the 2nd drop L2 is more taller than the drop L2 of the anti-pass moving gear side that does not have baffled 9 conventional art (corresponding to the 2nd oil storage zone S2).In addition, the 1st drop L1 is also lower than the drop L1 that does not have baffled 9 conventional art driving gear side (corresponding to the 1st oil storage zone S1).Promptly, according to embodiment 1, driving cog wheel face 10a, make the oil in the S1 of the 1st oil storage zone, can not resemble and not held together baffled 9 the conventional art a lot, like this, can suppress the decline of that part of the 2nd drop L2, and, improve the oily amount of having held together in the 2nd oil storage zone S2 that the convex partss such as bolt 2b by differential cover 2 outsides constitute.Therefore, if conventional art, for example when turning round and slope when travelling etc., the lubricants capacity that worry provides to bearing 6 is interrupted situation, but according to embodiment 1, as mentioned above, because the 2nd drop L2 ratio drop L2 height in the prior art, so do not produce the interrupted problem of lubricants capacity that provides to bearing 6.Promptly, according to embodiment 1, though the driving gear side, the 1st drop L1 is low, but because it is many to hold together the amount of oil in the S1 of the 1st oil storage that is made of driving cog wheel face 10a zone, so can suitably carry out the lubricating of clutch 3, thrust washer 4 and bearing 6 to the driving gear side.In addition, because anti-pass moving gear side, the 2nd drop L2 is also high, and owing to increased the amount of holding together oil in the 2nd oil storage zone S2 that constitutes from convex partss such as bolt 2b, so can suitably carry out lubricating to clutch 3, thrust washer 4 and the bearing 6 of anti-pass moving gear side by differential cover 2 outsides.
In detail, between the dull and stereotyped 3a and dish 3b of the large diameter hole 2a of differential cover 2 and clutch 3, and on the surface of contact of the reverse side of side gear 1 and thrust washer 4, can guarantee the lubricants capacity that flows into better than conventional art.And then, also can solve the intermittent problem of the lubricants capacity that provides to bearing 6.Above effect produces simultaneously in driving gear side and anti-pass moving gear side, but relatively more significantly more existing in anti-pass moving gear side with conventional art.
Further according to embodiment 1, be provided with the bearing 6 in the bearing fixing frame 8 the internal void, be communicated with the 1st access R1 (relatively P1 and P02) of periphery of the inversion axis 1a of side gear 1.That is, because the 2nd drop L2 height, so the lubricants capacity that provides to bearing 6 is not interrupted, and this intermittently to the oil of bearing 6 supplies, does not reach the periphery of the inversion axis 1a of side gear 1 through the 1st access R1.To this oil all based on the centrifugal force that rotation produced of clutch 3, between dull and stereotyped 3a and dish 3b, the 2nd access R2 that passes through the interior week of differential cover 2 is discharged to the atmosphere in the case of differential reliably.Thereby, can prevent the scorification of clutch 3 reliably.That is, according to embodiment 1, driving gear side clutch 3 is from needless to say and also preventing that the clutch 3 of anti-pass moving gear side is by scorification.
Below, other embodiments are illustrated with its action effect.
(1) in the foregoing description 1, be located at the atmosphere opening portion on the bearing fixing frame 8, as the internal void of the bearing 6 in the bearing fixing frame 8, but also can be provided in a side of the downward hole 8a of the first half of bearing fixing frame 8.In Fig. 1, illustration has downward hole 8a (relatively P4 and P04) particularly.
As follows by the action effect that constituting of such embodiment 2 obtains.The density of the oil that has held together above pasta L, if do not have baffled 9 conventional art, (corresponding to the 1st oil storage zone S1) is dense above the driving gear side, (corresponding to the 2nd oil storage zone S2) is rare above anti-pass moving gear side.Compare therewith, embodiment 1 is as implied above, has held together to improve in the S2 of the 2nd oil storage zone in the amount of oil in suppressing the 1st oil storage zone S1 and has held together oily amount.Thereby, comparing with conventional art, concentration is thinning above the S1 of the 1st oil storage zone, and concentration thickens above the S2 of the 2nd oil storage zone.Thereby the oil that has held together to S2 top, the 1st, the 2nd oil storage zone is among the downward hole 8a about flowing into and being filled to.And be filled to the oil of downward hole 8a, arrive the periphery of the inversion axis 1a of side gear 1 at the bottom of the hole through the 1st access R1.After, identical with embodiment 1, produce centrifugal force based on the rotation of clutch 3, and between dull and stereotyped 3a and dish 3b through the 2nd access R2 in interior week of differential cover 2, be discharged to the atmosphere in the case of differential reliably.Thereby, can prevent the scorification of clutch 3 reliably.That is, according to embodiment 2, driving gear side clutch 3 is from the scorification that needless to say and also can also prevent the clutch 3 of anti-pass moving gear side.
In addition, embodiment 2 is in embodiment 1 formation as shown in Figure 1, at the first half of bearing fixing frame 8 structure of downward hole 8a is set, but is not to be defined in this structure.For example, abolish " from the 1st access of the internal void of bearing 6 " as embodiment 1 feature structure, also can make the 1st access, only as the path that is initial point with the downward hole 8a shown in the embodiment 2 in the first half setting of bearing fixing frame 8.And then, as previously shown, because the scorification phenomenon of clutch 3 is more remarkable than driving gear side clutch 3 at anti-pass moving gear side clutch 3, so downward hole 8a can only be located at the first half of the bearing fixing frame 8 of anti-pass moving gear side.
(2) the 1st access R1 of the various embodiments described above, as shown in Figure 1, the outside of its inwall is along with the periphery to the inversion axis 1a of side gear 1 at least, and having the position that direction laterally tilts gradually is desirable (relatively P2 and P3).Details as Follows.Fig. 2 is the figure before differential cover 2 of the present invention, thrust washer 4 and side gear 1 assembling, (a) expression differential cover 2, (b) expression thrust washer 4, (c) expression side gear 1.The outer side surface of Fig. 3 (a) expression differential cover 2, the inner side surface of Fig. 3 (b) expression differential cover 2.In addition, if with Fig. 2 explanatory drawing 4～Fig. 7 in advance, then Fig. 4 is the inner side surface of thrust washer 4, and Fig. 5 is the outer side surface of side gear 1, and Fig. 6 and Fig. 7 represent dull and stereotyped 3a and dish 3b as previously mentioned.
Promptly, shown in Fig. 2 (a), the part of the 1st access R1 is by the gap formation with respect to transmission shaft 7 such as the through hole 2c in the two ends of the differential cover 2 by the chimeric transmission shaft 7 of the splined shaft 1b (with reference to Fig. 2 (c)) in the inversion axis 1a of side gear 1.Here, through hole 2c etc. are with along with to the periphery of the inversion axis 1a of side gear 1 and constitute extended corner θ 1, θ 2.As follows by the action effect that the embodiment who constitutes like this obtains.The oil toughness.Therefore, when 7 rotations of differential cover 2 and transmission shaft, the oil that contacts with transmission shaft 7 with differential cover 2, rotate by its viscosity and to produce centrifugal force finally.This centrifugal force is guided itself oil into the periphery of the inversion axis 1a of side gear 1.Thereby, can prevent the scorification of clutch 3 more reliably.
(3) in described each embodiment, also can pass path 1c (relatively P5 and P05) at the peripheral part of the inversion axis 1a of side gear 1.Certainly, this path 1c also still is the part of the 1st access R1.Details as Follows.As Fig. 2 (c) and shown in Figure 5, in the periphery of the inversion axis 1a of side gear 1, pass vertical hole 1c1 (cross-drilled hole 1c1) in axle direction, relative with dish 3b facial at each plate, there are a plurality of vertical hole 1c2 to pass in cross-drilled hole 1c1 upper shed.As follows by the action effect that the embodiment who constitutes like this obtains.The oil that reaches cross-drilled hole 1c1 flows among the cross-drilled hole 1c1, from cross-drilled hole 1c1 to vertical hole 1c2, dull and stereotyped and coil 3b and flow out with centrifugal force between the face relatively to each from vertical hole 1c2.Then, oil is lubricated plate and dish 3b.Thereby, can prevent the scorification of clutch 3 reliably.
In addition, also can reduce " groove " to cross-drilled hole 1c1 and vertical hole 1c2.This " groove " also still is path 1c.The oil mass that flows in the gap between a plurality of dull and stereotyped 3a and dish 3b is many in the outside, but few more more to the inside but at this moment.Thereby, in such formation, can guarantee fully that oil mass is appropriate.In addition, because the formation of present embodiment is the additional formation for described each embodiment who fully guarantees oil mass, so " path 1c " also can be " groove ".
(4) in the various embodiments described above, as Fig. 2 (c) and shown in Figure 5, at the back side of the inversion axis 1a of side gear 1, the groove 1d that passes communication paths 1c is desirable (relatively P5 and P05).Can promote thrust washer 4 lubricated of Fig. 4.
Claims (8)
1. clutch-type limited slip differential is characterized in that having:
Be erected between interior week of periphery and differential cover (2) of inversion axis (1a) of side gear (1), intermittently freely be connected and between described inversion axis (1a) and described differential cover (2) transferring power clutch (3) and
The driving gear of differential mechanism (10) is immersed in another the 2nd oil storage zone (S2) in the 1st oil storage zone (S1) and the case of differential (5) in the described case of differential (5) under the pasta though separate and stop allow the described the 1st and described the 2nd oil storage zone (S1), (S2) between the interior baffle plate (9) of the described case of differential (5) of oil flow and
Be located on the described case of differential (5) end, by bearing (6) support with rotating freely each transmission shaft (7) and described differential cover (2) bearing fixing frame (8) and
Be communicated to from the atmosphere opening portion on the described bearing fixing frame (8) of being located at described inversion axis (1a) periphery the 1st access (R1) and
The 2nd access (R2) that is communicated to atmosphere interior week from described differential cover (2).
2. clutch-type limited slip differential according to claim 1 is characterized in that: being located at the atmosphere opening portion on the described bearing fixing frame (8), is the internal void of the described bearing (6) in the described bearing fixing frame (8).
3. clutch-type limited slip differential according to claim 1 is characterized in that: be located at the atmosphere opening portion on the described bearing fixing frame (8), be provided in a side of the downward hole (8a) of the first half of described bearing fixing frame (8).
4. according to any described clutch-type limited slip differential in the claim 1～3, it is characterized in that: described the 1st access (R1), the outside of its inwall at least has towards the periphery of described inversion axis (1a), the position that tilts gradually of direction laterally.
5. according to any described clutch-type limited slip differential in the claim 1～3, it is characterized in that: have the path (1c) of the peripheral part that passes described inversion axis (1a), the part of described path (1c) as described the 1st access (R1).
6. clutch-type limited slip differential according to claim 5 is characterized in that: have the back side of passing described inversion axis (1a), the groove (1d) that is communicated with described path (1c).
7. clutch-type limited slip differential according to claim 4 is characterized in that: have the path (1c) of the peripheral part that passes described inversion axis (1a), the part of described path (1c) as described the 1st access (R1).
8. clutch-type limited slip differential according to claim 7 is characterized in that: have the back side of passing described inversion axis (1a), the groove (1d) that is communicated with described path (1c).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002052767A JP2003254415A (en) | 2002-02-28 | 2002-02-28 | Clutch type limited slip differential |
| JP2002052767 | 2002-02-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1441182A true CN1441182A (en) | 2003-09-10 |
| CN1309976C CN1309976C (en) | 2007-04-11 |
Family
ID=19192893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031067972A Expired - Fee Related CN1309976C (en) | 2002-02-28 | 2003-02-28 | Clutch type slip limiting differential mechanism |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2003254415A (en) |
| CN (1) | CN1309976C (en) |
| SE (1) | SE524027C2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775602A (en) * | 2012-10-23 | 2014-05-07 | 福特全球技术公司 | Clutch mechanism |
| CN104405850A (en) * | 2014-09-18 | 2015-03-11 | 广西柳工机械股份有限公司 | Differential |
| CN108626364A (en) * | 2017-03-17 | 2018-10-09 | 本田技研工业株式会社 | The lubrication system of power transmission |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4350702B2 (en) | 2005-12-14 | 2009-10-21 | 株式会社オーエス技研 | Differential |
| JP4888151B2 (en) * | 2006-08-28 | 2012-02-29 | 株式会社ジェイテクト | Vehicle differential and its assembly method |
| DE102009047749A1 (en) * | 2009-12-09 | 2011-06-16 | Zf Friedrichshafen Ag | Motor vehicle transmission with adjustable differential |
| US8961348B2 (en) | 2011-06-13 | 2015-02-24 | Caterpillar Inc. | Drive axle housing system for reducing oil churning |
| US8523737B1 (en) | 2012-07-11 | 2013-09-03 | Ford Global Technologies, Llc | All-wheel-drive disconnect clutch control |
| JP6982529B2 (en) * | 2018-03-22 | 2021-12-17 | 本田技研工業株式会社 | Differential device |
| US11662007B2 (en) * | 2020-12-30 | 2023-05-30 | Dana Heavy Vehicle Systems Group, Llc | Passive fully locking mechanical inter-axle differential assembly |
| US11649884B1 (en) * | 2021-12-17 | 2023-05-16 | Rivian Ip Holdings, Llc | Differential lubrication |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61175648U (en) * | 1985-04-22 | 1986-11-01 | ||
| US4667534A (en) * | 1985-10-18 | 1987-05-26 | Tochigi-Fuji Sangyo Kabushiki Kaisha | Limited slip differential gear mechanism |
| US5749801A (en) * | 1995-03-28 | 1998-05-12 | Tochigi Fuji Sangyo Kabushiki Kaisha | Differential unit |
| US6135241A (en) * | 1999-02-24 | 2000-10-24 | Dana Corporation | Axle housing with a deflector |
-
2002
- 2002-02-28 JP JP2002052767A patent/JP2003254415A/en active Pending
-
2003
- 2003-02-28 CN CNB031067972A patent/CN1309976C/en not_active Expired - Fee Related
- 2003-02-28 SE SE0300525A patent/SE524027C2/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775602A (en) * | 2012-10-23 | 2014-05-07 | 福特全球技术公司 | Clutch mechanism |
| CN104405850A (en) * | 2014-09-18 | 2015-03-11 | 广西柳工机械股份有限公司 | Differential |
| CN108626364A (en) * | 2017-03-17 | 2018-10-09 | 本田技研工业株式会社 | The lubrication system of power transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| SE0300525L (en) | 2003-08-29 |
| JP2003254415A (en) | 2003-09-10 |
| SE524027C2 (en) | 2004-06-15 |
| CN1309976C (en) | 2007-04-11 |
| SE0300525D0 (en) | 2003-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1309976C (en) | Clutch type slip limiting differential mechanism | |
| CN1824975A (en) | Transmission | |
| JP5032382B2 (en) | Motor drive device and in-wheel motor drive device | |
| EP0149346B1 (en) | Lubrication mechanism in final drive and differential units | |
| CN1831359A (en) | Automatic transmission carrier assembly including an overrunning brake | |
| US20070135254A1 (en) | Differential gears | |
| CN1727733A (en) | Transmission case for lube return and method | |
| JP7306372B2 (en) | tapered roller bearing | |
| US8961348B2 (en) | Drive axle housing system for reducing oil churning | |
| JP2007032612A (en) | Roller bearing | |
| WO2009104593A1 (en) | Railway rolling stock drive unit | |
| JPH11257360A (en) | Rolling bearing with seal ring and automobile transmission | |
| CN106468359A (en) | The bearing assembled unit of track vehicle traction electric machine | |
| JP5010484B2 (en) | Cycloid reducer and in-wheel motor drive device | |
| CN1730985A (en) | The housing of power transmitting deice | |
| CN202182169U (en) | Circulating lubrication oil channel in automobile transmission system | |
| CN100353092C (en) | Lubrication structure for manual transmission | |
| JP2010156407A (en) | Railway rolling stock drive unit | |
| JP2009257493A (en) | Cycloid reduction gear and in-wheel motor drive unit | |
| CN110962505B (en) | Drive axle and vehicle with same | |
| CN205401535U (en) | Epaxial flange axle construction of hydraulic retarber owner | |
| JP2010155541A (en) | Railroad vehicle drive unit | |
| CN200975213Y (en) | Self-lubricating and sealed type slewing table apparatus | |
| CN215720629U (en) | Differential mechanism assembly and gearbox | |
| CN220850697U (en) | Speed reducer and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070411 |