CN106104084A - Power transmission unit - Google Patents
Power transmission unit Download PDFInfo
- Publication number
- CN106104084A CN106104084A CN201480077411.9A CN201480077411A CN106104084A CN 106104084 A CN106104084 A CN 106104084A CN 201480077411 A CN201480077411 A CN 201480077411A CN 106104084 A CN106104084 A CN 106104084A
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- Prior art keywords
- mentioned
- axle
- hole
- housing
- gear
- Prior art date
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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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
Abstract
Power transmission unit possesses: housing, and its internal volume surrounds；First axle, it is accommodated in above-mentioned inner space and is supported in above-mentioned housing revolvably, is combined with above-mentioned speed changer and accepts above-mentioned torque and possess the first gear；Second axle, it is accommodated in above-mentioned inner space, parallel with above-mentioned first axle and be supported in above-mentioned housing by the top revolvably than above-mentioned first axle, and possesses the second gear engaging with above-mentioned first gear and bevel gear or hypoid gear；3rd axle, it is the 3rd axle being supported in above-mentioned housing revolvably and extending along the direction different from above-mentioned first axle and above-mentioned second axle, and possesses the little gear engaging with above-mentioned bevel gear and rotating integrally；Spaced walls, breather chamber is isolated by it from above-mentioned inner space；And first through hole and the second through hole, it is through above-mentioned spaced walls to the first through hole making above-mentioned inner space and connecting with above-mentioned breather chamber space and the second through hole, and at least the above first through hole is configured to towards above-mentioned first axle.
Description
Technical field
The present invention relates to the power transmission in automobile, particularly relate in four-wheel drive vehicle for from the axletree of side
Automobile power transmission unit to the axletree distribution of torque of opposite side.
Background technology
For example in the automobile of front-wheel drive, being arranged at the engine creating torque in the front of car body, differential mechanism accepts should
Torque and assign it to left and right front-wheel.In the case of four-wheel drive vehicle, utilize generally and include the speed changer of differential mechanism
A part for torque is taken out the power transmission unit (PTU) of rear wheel transmission by combination.
Such as two-stage (two benches) PTU possess from speed changer accept the power shaft of torque, transfer torque transmission jackshaft,
And convert the output shaft axially transmitting torque from jackshaft to power transmission shaft.PTU not only converts axially, also absorb speed changer with
The skew in main vertical between power transmission shaft.
Because of the reasons such as the temperature rising of inside with operating, there is the situation that the internal pressure of PTU uprises, thus in order to make pressure
To outside release, PTU is generally configured with passage.
The open related technology of patent document 1.According to such technology, PTU passes to than speed changer power transmission shaft on the lower
Passing torque, air-breather makes the air near jackshaft to outside release by the top than power shaft.
Prior art literature
Patent document
Patent document 1: Japanese Patent Application Laid-open 10-138774
Content of the invention
Lubricating oil within PTU is sometimes sparsely from passage to External leakage.If the leakage of lubricating oil repeats, can
The equipment of surrounding can be had a negative impact, additionally may cause the deficiency of lubricating oil.Owing to PTU is equipped in the car
It is difficult to the position from peripheral operation, so supplementing of lubricating oil is also difficult.
It according to the discovery of inventor, is to push away on the air that lubricating oil has been uprised by pressure one of the reason that oil leak,
And reach breather plug.In the technology disclosed in patent document 1, due to higher than entrance with the outlet of breather chamber, it is possible to certain
The leakage of degree ground suppression lubricating oil, but do not have a release road of lubricating oil from entrance to outlet, thus substantially and unresolved pressure
The problem pushing away lubricating oil on the air that power has uprised.Further, only higher position such power shaft ratio can be arranged in outlet
The technology of patent document 1 can be applied in the case of jackshaft is sufficiently high, thus at the situation of both same degree, power shaft relatively
Cannot apply in low situation (to the situation of higher power transmission shaft output torque) at all.
The present invention completes in view of the above-mentioned problems.A scheme according to the present invention, power transmission unit possesses:
Housing, its internal volume surrounds；First axle, it is accommodated in above-mentioned inner space and can be rotatably supported at above-mentioned
Housing, is combined with above-mentioned speed changer and accepts above-mentioned torque, and possess the first gear；Second axle, it is accommodated in above-mentioned inside
Space, parallel with above-mentioned first axle and above-mentioned housing can be rotatably supported at by the top than above-mentioned first axle, and possess with
Second gear of above-mentioned first gear engagement and bevel gear or hypoid gear；3rd axle, it is to be rotatably supported at
Above-mentioned housing and the 3rd axle extending along the direction different from above-mentioned first axle and above-mentioned second axle, and possess and above-mentioned cone tooth
The little gear that wheel engages and rotates integrally；Spaced walls, breather chamber is isolated by it from above-mentioned inner space；And first through hole and
Second through hole, it is that through above-mentioned spaced walls is to make above-mentioned inner space pass through with first that above-mentioned breather chamber spatially connects
Through hole and the second through hole, and at least the above first through hole is configured to towards above-mentioned first axle.
Brief description
Fig. 1 is the schematic diagram representing the four-wheel drive vehicle being provided with power transmission unit.
Fig. 2 A is the stereogram of the power transmission unit of an embodiment of the invention.
Fig. 2 B is the stereogram cutting away the power transmission unit that a part shows inside.
Fig. 3 is the cutaway top view obtaining with the cross section by the axle of each power transmission shaft of power transmission unit.
Fig. 4 is the side view showing its internal housing body.
Fig. 5 is the side view showing its internal case cover.
Fig. 6 is the top view of power transmission unit.
The schematic sectional view of the power transmission unit of the state of lubricating oil when Fig. 7 is to represent inclination.
Fig. 8 is the schematic of the power transmission unit of the state representing lubricating oil when tilting to the direction different from Fig. 7
Sectional view.
Fig. 9 A is the stereogram of the power transmission unit of other embodiments.
Fig. 9 B is the stereogram cutting away the power transmission unit that a part shows inside.
Figure 10 is the side view showing its internal housing body.
Figure 11 is the side view showing its internal case cover.
Figure 12 is the schematic sectional view of the inside showing breather chamber in the example shown in Fig. 2 A, Fig. 2 B.
Figure 13 is the schematic sectional view of the inside showing breather chamber in the example shown in Fig. 9 A, Fig. 9 B.
Detailed description of the invention
Referring to Fig. 1 to Figure 13, the embodiment of several examples of the present invention is illustrated.Additionally, following
Illustrate and in the record of claims, fore-and-aft direction, laterally, vertical be respectively relative to automobile towards being defined to
Use.And distinguish left and right for ease of explanation, even if left and right reversion also can be implemented following embodiment.
As it is shown in figure 1, as the power transmission 1 of embodiments of the present invention, such as can enumerate and be applied to automobile
The transmitter of 45.
First, the drive system of the automobile 45 employing power transmission 1 is illustrated.
Rotatably support pair of right and left front-wheel 49 in the front portion of the car body 47 of automobile 45, and at this car body 47
Rear portion has rotatably supported pair of right and left trailing wheel 51, utilizes above-mentioned each front-wheel 49 and each trailing wheel 51 to support on tread
Car body 47.
Differential gear 53 before being provided with between the front-wheel 49 of left and right, and at each output shaft of this front differential gear 53 by front
Axletree 55 is linked with each front-wheel 49 in linkage.Further, differential gear 57 after being provided with between the trailing wheel 51 of left and right, and rear poor at this
Each output shaft of dynamic device 57 is linked with each trailing wheel 51 in linkage by back axle 59.
Front support at car body 47 has the engine 61 as internal combustion engine, speed changer 63 and transmitter (power transmission dress
Put) it 1 is connected setting with this engine 61, speed changer 63 links with dynamotor 64, the output shaft of transmitter 1 and rear differential dress
Put the power shaft of 57 to be linked in linkage by universal-joint spindle 65.
First the power of engine 61 or dynamotor 64 transmit to speed changer 63, from this speed changer 63 via front difference
Dynamic device 53 and each front axle 55 transmit to each front-wheel 49, and via transmitter the 1st, universal-joint spindle 65 and each back axle 57 to
Each trailing wheel 51 transmits, and thus, automobile 45 can travel in the way of forward and backward four-wheel drive.
Additionally, the situation etc. when automobile 45 is for braking or during descending, the energy that dynamotor 64 discharges
Regeneration.
As shown in Fig. 3 etc., transmitter 1 possesses housing (casing) 7, this housing (casing) 7 possess for lubricating oil 3 enter interior
Space, portion 5.Entering the volume of the lubricating oil 3 in inner space 5 becomes less than the volume of inner space 5 and than inner space 5
The little degree of the half of volume.
It is provided with the rotary shaft rotatable relative to housing 7 the 9th, the 11st, 19 at housing 7.Each rotary shaft the 9th, the 11st, 19 respective extremely
A few part is positioned at the inner space 5 of housing 7.
Further, it as shown in Fig. 2 B, Fig. 4, Fig. 5 etc., in housing 7, is provided with breather chamber 17.Housing 7 is upper as shown in Figure 2 A
Surface somewhat bloats, and keeps breather chamber 17 as shown in Figure 2 B in the inside of such part.Breather chamber 17 necessarily ratio is all
Rotary shaft the 9th, the 11st, pivot C1, C2, C3 of 19 be by the top.Further, breather chamber 17 is across spaced walls 13 and housing 7
Inner space 5 divides, and connects with the inner space 5 of housing 7 via through hole 15A, 15B.Through hole 15A, 15B are also than institute
The 9th, the 11st, pivot C1, C2, C3 of 19 be by the top for some rotary shafts.
As shown in Fig. 3 etc., the 11st, the 9th, rotary shaft 19 be rotatably supported in housing 7 in inner space 5.Rotary shaft is the 9th,
11st, 19 include the first axle power shaft of power of source (the transmission engine 61 etc. drive) the 9th, be located at than this first axle 9 side rearward and
The second axle (jackshaft) 11 of being rotated by the rotation of the first axle 9 and be located at than this second axle side rearward and pass through second
The rotation of axle 11 and the 3rd axle (output shaft) 19 that rotates.
The pivot C2 of the pivot C1 of the first axle 9 and the second axle 11 laterally prolonging along car body 47 in parallel to each other
Stretch.The pivot C3 of the 3rd axle 19 extends along direction before and after car body 47.
Further, the pivot C3 of the 3rd axle 19 is located relative to the position that the pivot C2 of the second axle 11 reverses, and
And in the case of overlooking, the pivot C2 of the second axle 11 and pivot C3 of the 3rd axle 19 is mutually orthogonal.Additionally, the 3rd axle
The pivot C3 of 19 also can be orthogonal with the pivot C2 of the second axle 11.
Further, the pivot C1 of the first axle 9 be positioned at than the second axle 11 pivot C2 on the lower, the rotation of the second axle 11
Turn center C2 be positioned at than the 3rd axle 19 pivot C3 on the lower, but be not required to necessarily, it is also possible in vertical
The position of upper change each pivot C1, C2, C3.
Breather chamber 17 is positioned at the forward side of pivot C2 than the second axle 11.Further, breather chamber 17 is positioned at than the first axle 9
Pivot axle C1 side rearward.That is, breather chamber 17 is located at the pivot C1 of the first axle 9 and the second axle 11 in the longitudinal direction
Between pivot C2.
If additionally, through hole 15A, 15B are located at the pivot C1 of the first axle 9 and the rotation of the second axle 11 in the longitudinal direction
Turn between the C2 of center, then a part for breather chamber 17 also can highlight from the pivot C1 side slightly forward of the first axle 9, and
A part for breather chamber 17 also can highlight from the pivot C2 side slightly rearward of the second axle 11.
First axle 9 is formed as tubulose by methods such as rotary press modellings, and to pass through in its periphery in the way of its right-hand member
Press-in or welding etc. are integrally fixed the first gear (for example, helical gear) 37.At the second axle 11, equally with close to right-hand member
Mode is integrally provided with the second gear 39 engaging with the first gear 37.Thus, rotate from the first axle 9 to the second axle 11 transmission
Power.Generally, in order to make the second axle 11 speedup, and the first gear 37 is bigger diameter, and the second gear 39 is smaller straight
Footpath.Spaced walls 13 is formed as arc-shaped, is positioned at the outside diameter of the first gear 37 and the second gear 39.
It as shown in Fig. 2 B, Fig. 4, Fig. 7 etc., is provided with vent path (linearly extending and elongated steam vent) at housing 7
21.Vent path 21 is formed by carrying out machining (for example, Drilling operation) to the wall thickness of housing 7, makes breather chamber 17
Ft connection with housing 7.
Further, vent path 21 is horizontally extending, or is positioned at the outer side of lower section and housing 7 with breather chamber 17 side
Mode above along inclined direction extends.
Housing 7 possesses housing body unit 23 and case cover 25.
Housing body unit 23 possesses ring-type side of sidewall portion 69 and divider wall parts 71.Housing body unit 23 (ring-type side of sidewall portion
69) one end (right part) opening, and it is being formed ring-type interface 27 about.Housing body unit 23 (ring-type side
Wall portion 69) the other end (left part) substantially close, but opening smaller.Such opening portion is for tying with speed changer
The part closed, and it is being also formed with ring-type interface 67 about.The left end of the first axle 9 stretch out from such opening and with change
Speed device combines.The 27th, 67 expansion on the direction with quadrature transverse of each interface of housing body unit 23.
It in the inner side of ring-type interface 27 of the right-hand member of housing body unit 23, is formed with the right-hand member from housing body unit 23
Position 73 recessed significantly to the left.In the inner side of ring-type interface 67 of the left end of housing body unit 23, be formed from
The left end of housing body unit 23 position recessed minutely to the right 75.Position 73 recessed significantly and portion recessed minutely
Position 75 is separated by divider wall parts 71.
Case cover 25 is for by being combined the construction closing its opening with the right-hand member of housing body unit 23.Case cover 25
Possess ring-type side of sidewall portion 77 and divider wall parts 79, in the one end (left part) of case cover 25 (ring-type side of sidewall portion 77), shape
The ring-type interface 31 of interface 27 same shape of Cheng Youyu housing body unit 23.The interface 31 of case cover 25 with horizontal stroke
Launch on orthogonal direction.In the inner side of ring-type interface 31 of the left end of case cover 25, be provided with from the left end of housing 7 to
Right side position 81 recessed minutely.
So that the entirety of interface 27 of housing body unit 23 contacts with the mutual face of interface 31 entirety of case cover 25
Mode assemble housing body unit 23 and case cover 25 after define inner space 5.
That is, the major part of the inner space 5 of housing 7 by the inner side of the ring-type interface 27 in housing body unit 23 from shell
The position 73 that the right-hand member of body cover main part 23 is recessed significantly to the left is constituted, and divider wall parts 71 forms the diapire of inner space 5.
Further, a part for the inner space 5 of housing 7 by the inner side of the ring-type interface 31 in case cover 25 from the left end of housing 7
Position 81 recessed minutely to the right is constituted.
The ring-type interface 67 of the left end of housing body unit 23 is when housing 7 is arranged at case of transmission 35 and speed change
Device housing 35 contacts.Thus, the position 75 recessed minutely utilizing housing body unit 23 forms space 83.In ring-type docking
The position of the downside in face 67 is formed with less otch 85.Thus, space 83 is via the external connection of otch 85 and transmitter 1.
More specifically, the spaced walls 13 having described is by integratedly from left end the opening towards right-hand member of housing body unit 23
First spaced walls of mouth extension and the second spaced walls structure extending from the right-hand member of case cover 25 towards the opening of left end integratedly
Become, and mutually abutted at interface the 27th, 31s by both and constitute.In the side of housing body unit 23, the first spaced walls pair
The housing body unit recess 29 recessed from the position of the interface 27 with case cover 25 surrounds.And in case cover 25
Side, the case cover recess 33 recessed from the position of the interface 31 with housing body unit 23 is surrounded by the second spaced walls.That is,
The 29th, breather chamber 17 33 is made up of above-mentioned recess.
The value of the depth dimensions (horizontal size) of housing body unit recess 29 is than the degree of depth at position 73 recessed significantly
The value of size (horizontal size) is little, about the half of the value becoming the depth dimensions at position 73 recessed significantly, and compares
The value of the depth dimensions of case cover recess 33 is big.
A part of position of the wall thickness from the ring-type interface 31 with housing body unit 23 for the case cover recess 33 to
End side (such as right side) is recessed.Housing body unit recess 29 is from the one of the wall thickness of the ring-type interface 27 with case cover 25
The position of part is recessed to another side (such as left side).
Vent path 21 extends transversely longlyer, and from the bottom surface of housing body unit recess 29 throughout speed changer 63 side
Space 83 and formed.
After forming housing body unit 23 and case cover 25 with die casting, the 31st, the 27th, at least each interface 67 pass through machining
It is processed into plane.
First axle 9 and the second axle 11 are configured to gear (for example, helical gear) the 37th, 39 rotation by being respectively provided with.?
On the bearing of trend of the pivot C2 of the bearing of trend of the pivot C1 of one axle 9 and the second axle 11, the 37th, gear 39 for example exists
The right side of housing body unit 23 is positioned at housing body unit 23.
Further, to be provided with the 3rd gear (for example, bevel gear or hyperbola tooth in the way of the left end of the second axle 11
Wheel) 87, it is provided with fourth pinion (for example, bevel gear or hypoid gear) 89 in the front end of the 3rd axle 19.Fourth pinion
89 engage with the 3rd gear 87, and the 3rd axle 19 is rotated by the second axle 11.
3rd axle 19 can be rotatably supported at housing body unit 23 via ball bearing, and such ball bearing for example can
Enough utilizations possess the unit bearing of a pair ball bearing.3rd axle 19 assembles with such unit bearing one in advance, and can
It is assembled in housing body unit 23 integratedly.
Further, unit bearing possesses more than one through road the 93rd, 95, so that lubricating oil follows to such unit bearing
Ring, and housing body unit 23 can possess groove 99A, the 99B connecting with them.Groove 99A for example also can be towards gear the 87th, 89
In any one or both sides, and they are configured at the position of the lubricating oil that can accept to spill.The through road connecting with them
93 also can between pair of bearings opening.This utilize gear the 87th, 89 centrifugal force and efficiently to pair of bearings supply profit
The aspect of lubricating oil is favourable.
Through road 95 also can be left from through road 93 in unit bearing at least in the circumferential, and than pair of bearings
In the outer part, to than oil sealing space 97 opening in the inner part.Multiple groove 99B make through road 95 connect with inner space 5 respectively.In view of
The wall ratio of the outer race of support unit bearing is relatively thin, it is also possible to each groove 99B is set to ratio shallower, can be instead by its number
It is set to multiple.93rd, the 95th, groove 99A, 99B, the combination in space 97 constitute lubricating oil from inner space 5 via unit bearing on through road
The a series of path that internally space 5 returns.
The second spaced walls in case cover 25 forms otch 41.Otch 41 is formed as relative with the interface 31 of case cover 25
(being formed with the form recessed to the left from interface 31).First spaced walls of such otch 41 and housing body unit 23 is to making
Through hole 15A, 15B that inner space 5 and breather chamber 17 are interconnected surround.Or, otch 41 (or through hole) is also
The first spaced walls of housing body unit 23 can be formed at.Additionally or, it is also possible to merely with being opened in any one spaced walls
Hole constitutes through hole 15A, 15B.In the case of Gai, from interface 31 slightly away.Through hole 15A is configured in the face of the first axle
9, more specifically in the face of the first gear 37.Through hole 15B is configured to towards the second axle 11, more specifically towards
Two gears 39.
Inner space 5 and breather chamber 17 (leaving outside the property of periphery) circle via the first axle 9 and the outside of the second axle 11
The spaced walls 13 of arcuation and be divided into, through hole 15A, 15B are only will be formed in the spaced walls 13 of the arc-shaped of case cover 25
A part cut form formed.Plural through hole 15A, 15B (otch 41) are located at the front end of spaced walls 13
Portion and rearward end, just in case also becoming the outlet of lubricating oil 3 in the case that lubricating oil 3 flows into breather chamber 17 side.Additionally, arc-shaped
The center of spaced walls 13 consistent with the pivot of the second axle the 11st, the first axle 9.
Further, relative to level with the maximum angle in reality application (for example, housing 7 (transmitter 1) even if being configured to
40 °) tilt, the pasta of the lubricating oil 3 entering the ormal weight of the inner space 5 of housing 7 also is located at than breather chamber 17 on the lower.
For example, even if as center of rotation, front side is positioned at downside and rear side is positioned at upside like that at the axle to extend transversely
Rotation direction on when tilting maximum angle, breather chamber 17 also is located at the top of pasta L2 (with reference to Fig. 5).Additionally, shown in Fig. 5
The bearing of trend of straight line L1 represents the horizontal direction being equipped with when the automobile 45 of transmitter 1 is on the tread of level.
Further, even if as center of rotation, front side is positioned at upside and rear side is positioned at downside like that at the axle to extend transversely
Rotation direction on when tilting maximum angle, breather chamber 17 also is located at the top of pasta L3 (with reference to Fig. 5).
Further, though the axle to extend along the longitudinal direction as center of rotation left side be positioned at downside and right side be positioned at upside
When tilting maximum angle in such rotation direction, breather chamber 17 also is located at the top of pasta L4 (with reference to Fig. 7).
Further, though the axle to extend along the longitudinal direction as center of rotation left side be positioned at upside and right side be positioned at downside
When tilting maximum angle in such rotation direction, breather chamber 17 also is located at the top of pasta L5 (with reference to Fig. 8).
Even if in addition, when becoming the state of Fig. 5, Fig. 7, pasta (L2, L3, L4, L5) as shown in Figure 8, through hole
15A, 15B also are located at the top of pasta (L2, L3, L4, L5).
Further, the state or as shown in Figure 8 at level or pasta (L2, L3) as shown in Figure 5
In the state of pasta L5, even if lubricating oil 3 enters breather chamber 17, the lubricating oil 3 of this entrance also by through hole 15A, 15B to
Return in inner space 5.
It is to say, in the posture tilting to the period of angle of maximum from level to arbitrary direction, ventilation
Room 17 and through hole 15A, 15B are positioned at the top of pasta, and are tilting to the angle of regulation to the direction of regulation from level
Period posture in, enter the lubricating oil 3 of breather chamber 17 and internally returned in space 5 by any one of through hole 15A, 15B
Return.
Housing body unit recess 29 also can be divided into plural recess 29A, 29B as illustrated in fig. 4.Recess
29A and the second axle 11 adjoin, and recess 29B and the first axle 9 adjoin.In order to divide them, and housing main body 23 possesses one
The 3rd spaced walls that body ground extends from the first spaced walls to the shell of housing body unit 23.Vent path 21 is provided only on multiple shell
The housing body unit recess 29A being positioned at top side in phosphor bodies portion recess 29.
Multiple housing body unit recesses 29 (29A, 29B) are interconnected by case cover recess 33.
It follows that the action to transmitter 1 illustrates.
When each axle the 9th, the 11st, 19 stopped rotation when, lubricating oil 3 is trapped in the downside of inner space 5.
If the 11st, the 9th, each axle 19 rotate, then the lubricating oil 3 in inner space 5 is by gear the 37th, the stirring such as 39.Thus, lubricating oil
3 internally space 5 upside splash.But, the lubricating oil 3 that this sputters will not enter in breather chamber 17, but empty with inside
Between 5 inwall collision, move downwards along the inwall of inner space 5.Additionally, the lubricating oil 3 of small amount enters breather chamber 17
In, the lubricating oil 3 of this entrance by through hole 15A, 15B any one and fall, internally space 5 returns.Additionally, Fig. 4, figure
Arrow shown in 5 represents the direction of rotation of the first axle the 9th, the second axle 11.
Further, even if because the 11st, the 9th, each axle 19 rotate and pressure in inner space 5 rises, the air in inner space 5 is also
Discharge to air via through hole 15A, 15B, breather chamber the 17th, vent path the 21st, space the 83rd, otch 85 such that it is able in suppression
Pressure in space, portion 5 rises.
According to transmitter 1, owing to the breather chamber 17 marking off from the inner space 5 of housing 7 across spaced walls 13 is positioned at
Than be located at the rotary shaft of housing 7 the 9th, 11 the top side of pivot C1, C2, even if so the 9th, rotary shaft 11 rotates, inner space 5
Interior lubricating oil 3 is also difficult to enter in breather chamber 17.Further, owing to being connected to the through hole of inner space 5 and breather chamber 17
15A, 15B also be located at than rotary shaft the 9th, 11 the top side of pivot C1, C2, so the lubricating oil 3 in inner space 5 be difficult to into
Enter in breather chamber 17.
Further, according to transmitter 1, owing to breather chamber 17 is positioned at the forward side of pivot C2 than the second axle 11, so to
The prominent overhang in the rear of transmitter 1 tails off such that it is able to eliminate and be arranged at automobile 45 outside the housing 7 of transmitter 1
The interference of parts (for example, blast pipe).
Further, according to transmitter 1, owing to breather chamber 17 is located at the pivot C1 and of the first axle 9 in the longitudinal direction
Between the pivot C2 of two axles 11, it is possible to suppression housing 7 becomes big.
Further, according to transmitter 1, owing to spaced walls 13 is positioned at the outside diameter of the first gear 37 and the second gear 39, so
Pair of meshing gear the 37th, 39 outside diameter, the wall portion of housing 7 becomes dual, thus the intensity of housing 7 uprises, at each tooth
In wheel the 37th, 39 engagements each other, quietness strengthens, and then can suppress vibration.
Further, it according to transmitter 1, is provided with the vent path 21 making the outside of breather chamber 17 and housing 7 be interconnected, leading to
Cross the wall thickness to housing 7 and carry out machining (for example, Drilling operation) in the case of formed, easily make vent path 21 thin
Long, and with correct shape, vent path 21 can be arranged at correct position.
Further, according to transmitter 1, owing to vent path 21 is positioned at lower section and the outer side position of housing 7 with breather chamber 17 side
Mode in top along inclined direction extends, even if so lubricating oil 3 enters breather chamber 17 sparsely, lubricating oil 3 also will not be to
The outside of housing 7 spills.
Further, according to transmitter 1, owing to breather chamber 17 is by the housing recessed from the position of the interface 27 with case cover 25
Main part recess 29 and the case cover recess 33 recessed from the position of the interface 31 with housing body unit 23 are constituted, so
Do not need additionally to arrange parts, breather chamber 17 can be formed by the assembling of housing body unit 23 and case cover 25, it is thus possible to
Enough reduce manufacturing cost.
Further, according to transmitter 1, due to the rotation of the bearing of trend of the pivot C1 at the first axle 9 and the second axle 11
On the bearing of trend of center C2, the 37th, gear 39 is positioned at housing body unit 23, makes inner space 5 be interconnected with breather chamber 17
Through hole 15A, 15B be formed from the otch 41 of case cover 25 and formed, so the extension side of the pivot C1 at the first axle 9
Upwards, stagger with the position of through hole 15A, 15B in each gear the 37th, position of 39, thus because of gear the 37th, 39 rotation produced by
Centrifugal force and the spittle of lubricating oil 3 that produces is difficult to reach through hole 15A, 15B.
Further, according to transmitter 1, even if due to housing 7 relative to horizontal level with the maximum angle (example in reality application
Such as 40 °) tilt, the pasta of the lubricating oil 3 entering the ormal weight of the inner space 5 of housing 7 also is located at than breather chamber 17 on the lower
Side, even if so when automobile 45 tilts, lubricating oil 3 also will not flow out outside housing 7.
Referring especially to Figure 12, housing body unit recess 29 is divided into multiple recess (for example, two by the 3rd spaced walls；
29A, 29B), vent path 21 only connects with the recess 29A being positioned at top side in them.Multiple housing body unit recesses 29
It is interconnected by case cover recess 33.The lubricating oil for example having invaded from through hole 15A and the flowing F of air temporarily exist
Pass through in recess 29B, after being bent traveling by the 3rd spaced walls stop, flow into recess 29A.Inside due to breather chamber 17
Space is sufficiently large, so flowing F becomes extremely slow, and bends traveling, thus is separated into lubricating oil LO and air A.Air A
Can recess 29A by and flow into vent path 21, and to outside release.
Can be clear and definite from Fig. 2 B, Fig. 4, owing to recess 29A is positioned at than recess 29B more by the top, so isolated lubricating oil LO
Gravity cannot be violated and invade to vent path 21.Or, even if just in case substantial amounts of lubricating oil LO invades recess 29B, if recessed
Portion 29B is not filled, and can not invade recess 29A.Lubricating oil LO returns to through hole 15A or reaches another through hole
15B, by any one through hole, internally space 5 returns.Owing to there is plural through hole 15A, 15B, so depositing
On the release road of lubricating oil, push away lubrication oil condition from without having the air that pressure uprises.
Further, from Fig. 2 B definitely, owing to the first gear 37 is close to through hole 15A, so the first gear 37 is splash
Lubricating oil easily invade through hole 15A.But, through hole 15B is away from the first gear 37, and the diameter ratio of the second gear 39
The diameter of the first gear 37 little and away from through hole 15B, therefore said gear the 37th, 39 lubricating oil being splash are difficult to invade through
Hole 15B.Therefore, second through hole 15B manifests effect in terms of the recovery of lubricating oil, but is difficult to cause lubricating oil to flow from there
Enter and to the situation of External leakage.
Additionally, the breather chamber 17 being also located at case cover 25 side also only can form breather chamber 17 in housing body unit 23 side,
And case cover 25 side is as the flat plate wall of the end face closing this breather chamber 17.In the case of Gai, through hole 15A, 15B be located at housing
Main part 23 side.In addition, in the case of only breather chamber 17 being set in housing body unit 23 side, it is also possible in order to close breather chamber
Plate is installed on its end face by the end face of 17 and the plate that arranges other parts, and be bolted, welding etc. secures a plate to
Around its end face.
Two through holes all can not be located at case cover 25 yet, it is also possible to either one is located at housing body unit 23.For shape
Become such through hole, it is also possible to as shown in Figure 9 A to offer hole at housing 7 in the way of the outside of housing 7 is internally through
Hole 91.Make recess 29B with inner space 5 even with reference to Fig. 9 B, Figure 10, hole 91 throughgoing recesses 29B and spaced walls 13, and formation
Logical through hole 15C.Hole 91 also can be closed by suitable plug, and also can utilize and inject lubricating oil.Can be as
Exemplified by Figure 11 like that, such housing body unit 23 combines the case cover 25 only possessing unique through hole 15A.
With reference to Figure 13, identical with above-mentioned embodiment, the lubricating oil having invaded from through hole 15A and the flowing of air
F temporarily passes through in recess 29B, and flows into recess 29A in the way of bending is advanced.Flowing F is separated into lubrication during this period
Oil LO and air A, air A can recess 29A by and via vent path 21 to outside discharge.Due to through hole 15C position
In recess 29B, so lubricating oil LO will not be full of recess 29B, invade vent path 21 thus without by recess 29A.Profit
Lubricating oil LO returns from through hole 15A or 15C internally space 5.Owing to there is plural through hole 15A, 15C, so
Do not have on the air that pressure uprises and push away lubrication oil condition.
Further, can be clear and definite from Fig. 9 B, through hole 15C is towards the first axle 9, but not towards the first gear 37, certainly also not with
Any gear is close.Thus it is difficult to the situation of the lubricating oil intrusion through hole 15C causing any one gear to be splash.Therefore, pass through
Through hole 15C manifests effect in terms of the recovery of lubricating oil, but will not promote the leakage of lubricating oil.
By preferred embodiment describing the present invention, but the present invention is not limited to above-mentioned embodiment.
Based on above disclosure, the personnel of the usual technology with this technical field can be come by the correction of embodiment or deformation
Implement the present invention.
Industrial applicability
Offer can possess the power transmission unit of the breather chamber of the leakage preventing lubricating oil in a effective manner.
Claims (4)
1. a power transmission unit, is the power transmission unit taking out torque from the speed changer of automobile, it is characterised in that tool
Standby:
Housing, its internal volume surrounds；
First axle, it is accommodated in above-mentioned inner space and can be rotatably supported at above-mentioned housing, being combined with above-mentioned speed changer
Accept above-mentioned torque, and possess the first gear；
Second axle, it is accommodated in above-mentioned inner space, parallel with above-mentioned first axle and by the top can than above-mentioned first axle
It is rotatably supported at above-mentioned housing, and possess the second gear engaging with above-mentioned first gear and bevel gear or hyperbola tooth
Wheel；
3rd axle, it is can be rotatably supported at above-mentioned housing and along the side different from above-mentioned first axle and above-mentioned second axle
To the 3rd axle extending, and possesses the little gear engaging with above-mentioned bevel gear and rotating integrally；
Spaced walls, breather chamber is isolated by it from above-mentioned inner space；And
First through hole and the second through hole, it is that through above-mentioned spaced walls is to make above-mentioned inner space and above-mentioned breather chamber at sky
Between coconnected first through hole and the second through hole, and at least the above first through hole is configured to towards above-mentioned first axle.
2. power transmission unit according to claim 1, it is characterised in that
Above-mentioned housing possesses: main body, and it possesses the first end and the second end, and above-mentioned first end includes the knot being combined with above-mentioned speed changer
Conjunction portion, above-mentioned second end and above-mentioned first end are opposed to opening；And cover portion, its in order to surround above-mentioned inner space and with above-mentioned
Second end combines and closes,
Above-mentioned spaced walls possess from above-mentioned first end to above-mentioned second end integratedly from aforementioned body extend the first spaced walls, with
And integratedly from the extension of above-mentioned cover portion and the second spaced walls being connected to above-mentioned first spaced walls at above-mentioned second end,
In order to surround above-mentioned first through hole between above-mentioned first spaced walls and above-mentioned second spaced walls and above-mentioned second interval
Wall possesses otch.
3. power transmission unit according to claim 1, it is characterised in that be also equipped with:
3rd spaced walls, its above-mentioned breather chamber is divided into the first at least partially adjacent with the first axle breather chamber and with upper
State the first breather chamber connection and second breather chamber adjacent with above-mentioned second axle；And
Vent path, it makes above-mentioned second breather chamber and ft connection.
4. power transmission unit according to claim 1, it is characterised in that
Above-mentioned second through hole is configured at above-mentioned second axle or above-mentioned first axle towards the portion beyond above-mentioned first gear
Position.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014061846A JP2016205406A (en) | 2014-03-25 | 2014-03-25 | Power transmission device |
| JP2014-061846 | 2014-03-25 | ||
| PCT/JP2014/082077 WO2015145879A1 (en) | 2014-03-25 | 2014-12-04 | Power transfer unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106104084A true CN106104084A (en) | 2016-11-09 |
| CN106104084B CN106104084B (en) | 2018-06-15 |
Family
ID=54194447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480077411.9A Active CN106104084B (en) | 2014-03-25 | 2014-12-04 | Power transmission unit |
Country Status (3)
| Country | Link |
|---|---|
| JP (2) | JP2016205406A (en) |
| CN (1) | CN106104084B (en) |
| WO (1) | WO2015145879A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206870A (en) * | 2019-04-16 | 2019-09-06 | 上海蔚来汽车有限公司 | Gear-box and its shell and automobile |
| CN112240380A (en) * | 2019-07-17 | 2021-01-19 | 丰田自动车株式会社 | Ventilation device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6958467B2 (en) * | 2018-04-11 | 2021-11-02 | トヨタ自動車株式会社 | Final reducer for vehicles |
| WO2020031313A1 (en) * | 2018-08-09 | 2020-02-13 | 株式会社ユニバンス | Power transmitting device |
| JP2020037951A (en) * | 2018-08-31 | 2020-03-12 | いすゞ自動車株式会社 | Power transmission device |
| JP2020193629A (en) * | 2019-05-24 | 2020-12-03 | 本田技研工業株式会社 | Breather device of vehicle |
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|---|---|---|---|---|
| JPH0587210A (en) * | 1991-09-24 | 1993-04-06 | Tochigi Fuji Ind Co Ltd | Breather device |
| JP2000108703A (en) * | 1998-09-30 | 2000-04-18 | Suzuki Motor Corp | Breather structure of transfer |
| US20040216555A1 (en) * | 2003-04-18 | 2004-11-04 | Honda Motor Co., Ltd. | Gear case assembly with pressure-compensating function for marine propulsion machine |
| CN101344162A (en) * | 2007-07-13 | 2009-01-14 | 吉凯恩动力传动系统扭矩技术株式会社 | Power transmission device |
| CN103542079A (en) * | 2012-07-11 | 2014-01-29 | 吉凯恩传动系统日本株式会社 | Ventilating structure for lubricating power transmission device |
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|---|---|---|---|---|
| JPH0633239Y2 (en) * | 1988-06-20 | 1994-08-31 | ジャトコ株式会社 | Air breather device for automatic transmission |
| JPH0367751U (en) * | 1989-10-26 | 1991-07-02 | ||
| JP3520654B2 (en) * | 1996-02-13 | 2004-04-19 | スズキ株式会社 | Transfer lubrication device |
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2014
- 2014-03-25 JP JP2014061846A patent/JP2016205406A/en active Pending
- 2014-12-04 WO PCT/JP2014/082077 patent/WO2015145879A1/en active Application Filing
- 2014-12-04 CN CN201480077411.9A patent/CN106104084B/en active Active
- 2014-12-04 JP JP2016509903A patent/JP6243514B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0587210A (en) * | 1991-09-24 | 1993-04-06 | Tochigi Fuji Ind Co Ltd | Breather device |
| JP2000108703A (en) * | 1998-09-30 | 2000-04-18 | Suzuki Motor Corp | Breather structure of transfer |
| US20040216555A1 (en) * | 2003-04-18 | 2004-11-04 | Honda Motor Co., Ltd. | Gear case assembly with pressure-compensating function for marine propulsion machine |
| CN101344162A (en) * | 2007-07-13 | 2009-01-14 | 吉凯恩动力传动系统扭矩技术株式会社 | Power transmission device |
| CN103542079A (en) * | 2012-07-11 | 2014-01-29 | 吉凯恩传动系统日本株式会社 | Ventilating structure for lubricating power transmission device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206870A (en) * | 2019-04-16 | 2019-09-06 | 上海蔚来汽车有限公司 | Gear-box and its shell and automobile |
| CN110206870B (en) * | 2019-04-16 | 2023-09-05 | 上海蔚来汽车有限公司 | Gear box and automobile |
| CN112240380A (en) * | 2019-07-17 | 2021-01-19 | 丰田自动车株式会社 | Ventilation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106104084B (en) | 2018-06-15 |
| JP6243514B2 (en) | 2017-12-06 |
| WO2015145879A1 (en) | 2015-10-01 |
| JPWO2015145879A1 (en) | 2017-04-13 |
| JP2016205406A (en) | 2016-12-08 |
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